ACE Basin National Estuarine Research Reserve Water Quality Metadata Report January-December 2000 Latest Update: May 22, 2001
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CDMO_acewq01-12.00m
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Summary
Abstract:
Water quality monitoring is conducted at 26 National Estuarine Research Reserves (NERR)
at four locations within or adjacent to the reserve. The following parameters are collected at
least every 30 minutes: water temperature, specific conductivity, salinity, percent saturation,
dissolved oxygen concentration, water depth, pH and turbidity. All water quality data loggers
will be deployed from a known depth from the bottom at each site.
Purpose:
Research objectives Based on discussions with local CZM personnel and our knowledge of land use within the Reserve, the South Edisto River drainage basin appears well suited for studying contrasting hydrographic conditions and land use patterns. One NERR water quality monitoring station has been established near Edisto Beach within a tributary of Big Bay Creek. Surrounded by residential and ... commercial
development and subject to nonpoint source pollution, this station is designated as the
"treatment" site. The second NERR water quality monitoring station has been situated near Bailey
Island, within a tributary of St. Pierre Creek. Urban development in the immediate area of this
station has been sparse to date so this station will serve as our "control" site. The ACE Basin
water quality monitoring program began on March 3, 1995 at two tributaries off Big Bay and St.
Pierre creeks (see Site Location and Character section for description of sites). The deployment
sites were constructed prior to the first deployment (see Research Methods section). Initially,
the YSI electronic data loggers were programmed to measure the water temperature, specific
conductance, dissolved oxygen and water level, and pH at 15-minute intervals (sampling interval
was changed to 30 minutes prior to the August 11 deployment period). Starting April 11, 1996
deployment period, turbidity monitoring was added to the program. Beginning in December of 1999,
we alternate between chlorophyll a and turbidity data collection, and each parameter is
monitored two weeks each month. (Note: chlorophyll data are not yet a parameter that is
collected for the NERR system, so please contact the Research Coordinator and/or Reserve
Technician for this data.) In July 1997, the Reserve staff initiated nutrient monitoring study.
The objective of the study is to ascertain the annual and tidal fluctuations in nutrient levels
near our two data logger sites. Nutrient levels are measured during a complete tidal cycle each
month, and the samples are analyzed for ammonia, nitrite-nitrate, ortho-phosphate, and
chlorophyll a concentrations. In December of 1999, we initiated a Chlorophyll Testing Pilot
Study. The objective of the study is to test the performance and accuracy of the fluorescence
probes by comparison of automated data sets with field and/or lab measurements of total
chlorophyll, as determined by standard laboratory methods. The electronics package in two 6000
dataloggers were upgraded so that the existing optical ports could be used for turbidity and
chlorophyll measurements. We started measuring chlorophyll data at both sites on February 11,
2000. Water samples are collected at the beginning and end of each deployment and analyzed for
chlorophyll, using the fluorometric method. The study was completed in June 7, 2000.
SUPPLEMENTAL INFORMATION: Associated researchers and projects Two NERRS graduate fellows have
concluded their examination of the nutrient dynamics in the marsh sediments near our water
quality monitoring stations. Christopher T. Nietch studied carbon biogeochemistry and the effect
of salinity and nutrient availability on marsh metabolism in tidal marshes. The focus of
Pallaoor V. Sundareshwar's study was on phosphorus dynamics in impacted and non-impacted coastal
wetlands and the effect anthropogenic perturbations on natural processes. Both fellows received
their Ph.D. degrees in spring of 2000. Dr. Clark Alexander of Skidaway Institute continued the
investigations of the sedimentation process in the ACE Basin. Concurrent studies were conducted
in the several locations in the Ashepoo and South Edisto Rivers during May 1999. Continuous flow
velocity readings were measured over a 13-hour period at an anchored station while discrete
measurements of various water parameters (i.e., salinity, turbidity) were taken at various
locations in the same water body. Deep sediment cores were also collected at the anchor
stations. In the spring of 2000, SCDNR Geologists completed the construction of sediment/erosion
tables (SET) in the ACE Basin NERR, including our water quality stations, to determine the
effects hydrologic changes on the marsh elevation. Dr. Amy Ringwood of SCDNR/Marine Resources
Research Institute received CICEET funding to conduct this study in ACE Basin and North
Inlet/Winyah Bay Reserves. Funds for this project were awarded in October, 1998. Eight sites
were selected in the ACE Basin, including the two water quality monitoring stations. Oysters
(Crassostrea virginica), grass shrimp (Paleomonetes pugio), and mummichogs (Fundulus
heteroclitus) were collected from these sites during the February-April time frame.
Hepatopancreatic/liver tissues were dissected and used for three different cellular biomarker
assays (lysosomal destabilization, glutathione concentrations, and lipid peroxidation). Drs.
James T. Morris, Madilyn Fletcher, John Jensen, Alan Lewitus, Peter A. Noble, and Dwayne Porter
of University of South Carolina received CISNet funding to conduct this three-year study in the
North Inlet/Winyah Bay Reserve; and, prior to the first sampling season (summer 1999), the
investigators added the ACE Basin NERR to the study. The researchers will compare nutrient
loading, nutrient dynamics, and productivity in the North Inlet to that of the S. Edisto River
(ACE Basin NERR). Other remarks/notes The NERR program has not yet adopted chlorophyll as a
water quality parameter, however, some sites have began deploying the chlorophyll sensor on the
YSI 6000. Please contact the Research Coordinator and/or the Reserve Technician for chlorophyll
data. Prior to 09/27/00 at 11:00:00 at Big Bay, the datalogger was replaced with a newly
calibrated sonde. Associated researchers and projects Two NERRS graduate fellows have concluded
their examination of the nutrient dynamics in the marsh sediments near our water quality
monitoring stations. Christopher T. Nietch studied carbon biogeochemistry and the effect of
salinity and nutrient availability on marsh metabolism in tidal marshes. The focus of Pallaoor
V. Sundareshwar's study was on phosphorus dynamics in impacted and non-impacted coastal wetlands
and the effect anthropogenic perturbations on natural processes. Both fellows received their
Ph.D. degrees in spring of 2000. Dr. Clark Alexander of Skidaway Institute continued the
investigations of the sedimentation process in the ACE Basin. Concurrent studies were conducted
in the several locations in the Ashepoo and South Edisto Rivers during May 1999. Continuous flow
velocity readings were measured over a 13-hour period at an anchored station while discrete
measurements of various water parameters (i.e., salinity, turbidity) were taken at various
locations in the same water body. Deep sediment cores were also collected at the anchor
stations. In the spring of 2000, SCDNR Geologists completed the construction of sediment/erosion
tables (SET) in the ACE Basin NERR, including our water quality stations, to determine the
effects hydrologic changes on the marsh elevation. Dr. Amy Ringwood of SCDNR/Marine Resources
Research Institute received CICEET funding to conduct this study in ACE Basin and North
Inlet/Winyah Bay Reserves. Funds for this project were awarded in October, 1998. Eight sites
were selected in the ACE Basin, including the two water quality monitoring stations. Oysters
(Crassostrea virginica), grass shrimp (Paleomonetes pugio), and mummichogs (Fundulus
heteroclitus) were collected from these sites during the February-April time frame.
Hepatopancreatic/liver tissues were dissected and used for three different cellular biomarker
assays (lysosomal destabilization, glutathione concentrations, and lipid peroxidation). Drs.
James T. Morris, Madilyn Fletcher, John Jensen, Alan Lewitus, Peter A. Noble, and Dwayne Porter
of University of South Carolina received CISNet funding to conduct this three-year study in the
North Inlet/Winyah Bay Reserve; and, prior to the first sampling season (summer 1999), the
investigators added the ACE Basin NERR to the study. The researchers will compare nutrient
loading, nutrient dynamics, and productivity in the North Inlet to that of the S. Edisto River
(ACE Basin NERR). CURRENTNESS REFERENCE: Observed SPATIAL DATA ORGANIZATION INFORMATION Indirect
Spatial Reference: Site location and character The two sampling sites are in separate
tributaries of the South Edisto River. The descriptions of the sites are as follows: Station A
(bb)- this site is in a tidal marsh creek off Big Bay Creek (GPS coordinates: 32'29"38.72125N
and 80'19"21.69864W). Surrounded by residential and commercial development and subject to
nonpoint source pollution, this station is designated as the "treatment" site. Pollution sources
to Big Bay Creek include houses bordering the creek, many of them with little setbacks from the
bordering Spartina marsh; forty docks in the area constructed of creosote, concrete and
Wolmanized pilings; boat dockage and heavy boat traffic through the creek; a paved road and
three boat ramps off the creek; a marina with 75 slips, CCA treated bulkheads and fueling areas
located about 0.5 miles downstream; two commercial seafood docks with 8-10 commercial shrimp
boats; and three restaurants. The creek is closed to shellfish harvesting because of the human
development in the vicinity. Vegetation in the area includes salt marsh dominated by Spartina
alterniflora with isolated areas of Salicornia. Upland fringe areas consist of cabbage palmetto,
live oak and cedars. Reefs of American oyster (Crassostrea virginica) fringe the creek banks. At
the time of reconnaissance, depth of the creek midway through ebb tide was 5 feet and salinity
was 23 parts per thousand (ppt). Station B (sp) - this site is in a tidal creek off St. Pierre
Creek (GPS coordinates: 32'31"40.59518N and 80' 21"41.25481W). The tidal creek and St. Pierre
Creek are surrounded by a wide expanse of Spartina alterniflora marsh. Extensive mud flats and
oyster reefs fringe the banks. Maritime forest communities comprised of species such as wax
myrtles, live oaks, and palmettos dominate the upland areas. Development in the immediate area
is sparse. This creek is subject to relatively light boat traffic. At the time of
reconnaissance, depth at low tide was 2.5 feet and salinity was 21 ppt. The following
discussions of trends in water quality at the monitoring stations are based on data collected
from March 1995 through December 1997. During this period, water temperature at both monitoring
sites exhibited a seasonal pattern with lowest values occurring in December-January. The lowest
monthly water temperature observed was 8.9 oC, which occurred in February 1996 at St. Pierre
Creek; whereas maximum temperatures occurred in July and August with the highest monthly water
temperature 38.9 oC occurring in July 1995 at Big Bay Creek. Diurnal variation in temperature
was evident with warmest temperatures occurring from 1300 hr to 1800 hr at both sites. Salinity
also exhibited seasonal variability during the same period, with lowest values occurring in
March at Big Bay and St. Pierre creeks. Another period of low average monthly salinity occurred
at Big Bay Creek in December 1997. Average annual salinity for both sites was in the polyhaline
regime, with a mean of 29.4 at Big Bay Creek and 26.3 at St. Pierre
Creek; however, for all years, salinity ranged from 0.3-41.7 at Big Bay and from
0-41.7 at St. Pierre Creek. Local precipitation and evaporation conditions are most
likely the major contributors to monthly variability in salinity. Analysis of the data indicates
that tidal stage strongly influences salinity. As expected, highest values of salinity occurred
on the flood tide. It appears that tidal stage also influences pH. Spectral analysis revealed a
periodicity for pH and water depth with a sinusoidal period at ~ 12 hrs, representing tidal
periodicity. Time series plots of pH indicated variability of ~1 standard unit (su) on a daily
basis. The pH at both sites was very similar, ranging from 5.3-8.4; however, the preponderance
of measurements were 7 at both sites. The pH observed at the two monitoring sites appear
to be attributable to natural conditions. Marked variations in pH can also occur diurnally due
to changes in primary production and respiration. Dissolved oxygen concentrations appeared to
track depth for part of the cycle, with lowest values occurring on low tides. Afternoon and
evening values were not as low as early morning values, suggesting a diurnal component.
Dissolved oxygen values at the two monitoring sites were generally high throughout the year with
averages of 83.6% saturation and 6.6 mg/l for Big Bay Creek and 78.5% air saturation and 6.3
mg/l for St. Pierre Creek, with highest values in winter and lowest in summer. Hypoxic events
(28% air saturation) were observed in every season, but summer was clearly the season
with the greatest percent of time when DO was 28%. Whereas, supersaturation (100% air
saturation) occurred primarily in the winter, with values exceeding 120% at both creeks. There
are a few differences between the two sites such as, hypoxic conditions occur more frequently at
St. Pierre Creek. Unlike the other parameters monitored at Big Bay and St. Pierre creeks, there
appears to be no distinct seasonal trend in turbidity; however, monthly variability appeared
greater at the St. Pierre site. This may be due to fluctuations in the amount of detritus being
washed from the extensive salt marsh and upland sites that surround St. Pierre Creek. It appears
that metal leachates from the pilings, even the new ones along Big Bay Creek, have negligible
ecological effects, according to the 1994 study by Weis and Weis. Their findings indicated that
concentrations of the metals (Cr, Cu, and As) in sediments adjacent to pilings along Big Bay
Creek were generally not significantly elevated, and there were no consistent differences in the
benthic communities between the Big Bay and St. Pierre monitoring sites. However, the highest
values of PAHs encountered (299.0 ng/g) during a study by Drs. Geoff Scott and Tom Mathews from
1993-1995 were in the sediments of Big Bay Creek; this station also had detectable levels of
PCBs concentrations as well. Whereas, the concentrations in St. Pierre Creek sediments were
below the level of detection for persistent pesticides and for PCBs. Overall, contaminant levels
in sediments at the 34 sampling sites were below the level of detection for persistent
pesticides and for PCBs, suggesting that the ACE is a relatively pristine system. 
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: 32.67
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S: 32.33
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E: -80.28
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W: -80.67
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Data Set Citation
Dataset Originator/Creator:
Dr. Elizabeth Wenner, Saundra Upchurch, Amy Whitaker Dukes
Dataset Title:
ACE Basin National Estuarine Research Reserve Water Quality Metadata Report
January-December 2000 Latest Update: May 22, 2001
Dataset Release Date:
2006-02-07
Data Presentation Form:
Unknown
Other Citation Details:
NA
Online Resource:
http://cdmo.baruch.sc.edu/
Parent DIF
This data set description is a member of a collection. The
collection is described in
noaanosnerr_d_nerrparent
Temporal Coverage
Start Date:
2000-01-01
Stop Date:
2000-12-31
Quality
ATTRIBUTE ACCURACY REPORT: Anomalous/Suspect Data January 1-31, 2000 Sampling Period Big
Bay a) During the following periods, the specific conductivity and salinity readings are
suspect. The low readings are probably due to improper calibration procedures or a contaminated
standard. The correction factors for the specific conductivity and salinity data were calculated
... as follow. First, a new conductivity standard (58.64 mS/cm) was prepared and then the
conductivity sensor was fully immersed in the standard and then the specific conductivity and
salinity of the standard were recorded. Next, the sensor was calibrated, and the new specific
conductivity and salinity readings were recorded. The correction factor for the two parameters
was calculated by dividing the reading taken after calibration by the reading taken prior to the
calibration. The specific conductivity and salinity data were multiplied by the correction
factors (1.67 and 1.77, respectively). In addition, the dissolved oxygen (mg/L) readings were
reduced by 10%, in accordance with the oxygen solubility table. 01/01/00 00:00:00 THRU 01/14/00
11:30:00 b) During the following periods, data were deleted because the sonde went dry. 01/04/00
23:30:00 THRU 01/05/00 01:30:00 St. Pierre a) During the following periods, the specific
conductivity and salinity readings are suspect. The low readings are probably due to improper
calibration procedures or a contaminated standard. The correction factors for the specific
conductivity and salinity data were calculated as follow. First, a new conductivity was prepared
and then the conductivity sensor was fully immersed in the standard and then the specific
conductivity and salinity of the standard were recorded. Next, the sensor was calibrated, and
the new specific conductivity and salinity readings were recorded. The correction factor for the
two parameters was calculated by dividing the reading taken after calibration by the reading
taken prior to the calibration. The specific conductivity and salinity data were multiplied by
the correction factors (1.67 and 1.77, respectively). 01/01/00 00:00:00 THRU 01/14/00 11:30:00
b) During the following periods of the December 16,1999-January 14, 2000 deployment, dissolved
oxygen (DO) readings were deleted because the DO membrane was fouled during deployment. 01/01/00
00:00:00 THRU 01/14/00 11:30:00 c) During the following periods of the January 20-February 10
deployment, dissolved oxygen (DO) readings were deleted because the DO membrane was punctured
during deployment. 01/20/00 16:00:00 THRU 01/31/00 23:30:00 d) During the following periods of
the January 20-February 10 deployment, the specific conductivity and salinity readings were
deleted. 01/23/00 13:30:00 THRU 01/31/00 23:30:00 e) At 21:00 on January 24, the turbidity
spiked (1612 NTU). The high spike was probably caused by an animal or a clump of plant matter or
sediment that passed by the sensor optics during the sampling interval. February 1-29, 2000
Sampling Period Big Bay a) At 17:30 on February 7, the turbidity spiked (1271 NTU). The high
spike was probably caused by an animal, a clump of plant matter, or sediment that passed by the
sensor optics during the sampling interval. Data was deleted. b) During the following periods,
the data were deleted because the sonde went dry. 02/11/00 17:30:00-18:30:00 02/14/00
08:30:00-10:00:00; 18:00:00-22:30:00 02/15/00 22:00:00-22:30:00 02/16/00 22:30:00-23:30:00
02/17/00 00:00:00 02/19/00 01:30:00-02:00:00 02/20/00 01:30:00-03:30:00; 15:00:00 02/21/00
03:00:00-03:30:00 02/22/00 03:30:00 St. Pierre a) During the following periods of the January
20-February 10 deployment, the specific conductivity and salinity readings were deleted.
02/01/00 00:00:00 THRU 02/10/00 09:30:00 b) During the following periods of the January
20-February 10 deployment, dissolved oxygen (DO) readings were deleted because the DO membrane
was punctured during deployment. 02/01/00 00:00:00 THRU 02/10/00 09:30:00 c) During the
following periods of the February 11-March 6 deployment, dissolved oxygen (DO) readings ranged
from 130 to 163 % air saturation, and rarely dropped below 130%. Super saturation conditions
(100%) continued after this period, but the DO levels were lower. The readings were not
deleted because the high values corresponded with the highest water levels during that period,
suggesting an environmental cause of the high readings. In addition, the membrane was not
damaged and YSI readings were similar to in-situ Winkler readings. The YSI DO reading at
deployment was 11.1 mg/l and the Winkler reading was 10.3 mg/l. The retrieval reading for YSI
was 9.4 mg/l and the Winkler reading was 7.2 mg/l. A review of historical DO-water level
correlation will help us evaluate these readings. 02/13/00 09:30:00 THRU 02/28/00 06:00:00 d)
During the following periods, the turbidity spiked. The high spikes were probably caused by an
animal or a clump of plant matter or sediment that passed by the sensor optics during the
sampling interval. 02/05/00 07:30:00 02/06/00 18:30:00 02/07/00 08:30:00; 20:30:00 02/08/00
08:00:00; 09:00:00; 10:30:00-11:00:00; 21:30:00-22:30:00 02/09/00 09:30:00-10:00:00; 11:30:00;
22:30:00 e) During the following periods, the salinity readings were less than 18 ppt. These
readings are not within normal polyhaline/euhaline salinity range (18 and 40 ppt) for this site.
The low readings were probably due to extremely low tides or heavy rainfall events. 02/14/00
08:30:00-09:30:00 March 1-31, 2000 Sampling Period Big Bay a) During the following periods, data
were deleted because the sonde went dry. 03/06/00 01:30:00-02:00:00 b) During the following
periods, the depth readings are zero or negative. The depth data were not deleted because the
salinity and dissolved oxygen readings indicate the data logger was submerged during these
periods. 03/05/00 00:30:00 03/09/00 15:30:00-17:00:00 03/10/00 04:30:00-05:00:00;
16:30:00-17:30:00 03/12/00 06:00:00-07:30:00; 18:00:00-19:30:00 03/16/00 23:30:00 03/17/00
00:00:00; 11:30:00-12:30:00 03/18/00 00:00:00 St. Pierre a) No anomalies April 1-30, 2000
Sampling Period Big Bay a) During the following periods of the April 10-May 1 deployment, the
dissolved oxygen (DO) readings were deleted because the membrane was damaged or the sensor was
fouled during the deployment. 04/17/00 03:00:00 THRU 04/30/00 23:30:00 b) During the following
periods, the depth readings are zero or negative. The depth data were not deleted because the
salinity and dissolved oxygen readings indicate the data logger wassubmerged during these
periods. 04/04/00 01:30:00-02:00:00 04/16/00 13:30:00 04/17/00 02:00:00-02:30:00; 14:00:00
04/18/00 03:00:00-03:30:00; 14:30:00-15:30:00 St. Pierre a) No anomalies May 1-31, 2000 Sampling
Period Big Bay a) During the following periods of the April 10-May 1 deployment, the dissolved
oxygen (DO)readings were deleted because the membrane was fouled during the deployment. 05/01/00
00:00:00-09:00:00 b) During the following periods, data were deleted because the sonde went dry.
05/05/00 16:00:00-16:30:00 05/06/00 16:30:00-17:30:00 05/07/00 17:00:00-18:00:00 05/08/00
18:30:00 c) During the following periods, the depth readings are zero or negative. The depth
data were not deleted because the salinity and dissolved oxygen readings indicate the data
logger was submerged during these periods. 05/07/00 06:00:00 05/08/00 06:30:00 18:00:00 19:00:00
05/09/00 07:00:00-07:30:00 19:00:00-19:30:00 05/10/00 08:00:00 05/13/00 11:30:00 05/20/00
04:00:00-04:30:00 d) At 07:30 on May 7, the dissolved oxygen reading is less than 28% air
saturation. The low reading occurred during early flood tide. St. Pierre a) During the following
periods of the May 30-June 21 deployment, the dissolved oxygen (DO) readings were deleted
because the membrane was punctured during deployment. 05/30/00 11:00:00 THRU 05/31/00 23:30:00
June 1-30, 2000 Sampling Period Big Bay a) The following records include dissolved oxygen
reading that are less than 28% air saturation. The low readings occurred during late ebb tides
and early flood tides. 06/04/00 06:00:00 06/05/00 00:30:00 b) During the following periods of
the May 30-June 7 deployment, the dissolved oxygen (DO) readings were deleted because the sensor
malfunctioned during the deployment. 06/05/00 03:00:00 THRU 06/07/00 22:00:00 c) During the
following periods, the depth readings are zero or negative. The depth data were not deleted
because the salinity and dissolved oxygen readings indicate the data logger was submerged during
these periods. 06/06/00 18:00:00-19:00:00 06/27/00 10:00:00-11:00:00 06/28/00 11:00:00 06/29/00
00:00:00-00:30:00; 11:30:00-12:00:00; 13:30:00 06/30/00 01:00:00-02:00:00; 12:30:00-14:00:00 d)
During the following periods of the June 21-July 10 deployment, the dissolved oxygen (DO)
readings were deleted because the membrane was fouled during the deployment. 06/26/00 13:30:00
THRU 06/30/00 23:30:00 e) During the following periods, data were deleted because the sonde went
dry. 06/28/00 11:30:00-12:00:00 06/29/00 12:30:00-13:00:00 St. Pierre a) During the following
periods of the May 30-June 21 and the June 26-July 10 deployment periods, the dissolved oxygen
(DO) readings were deleted because the membrane was punctured during the deployment. 06/01/00
00:00:00 THRU 06/21/00 10:30:00 06/26/00 10:30:00 THRU 06/30/00 23:30:00 b) At 10:00 on June 12,
the turbidity spiked (1337 NTU). The high spike was probably caused by an animal, a clump of
plant matter, or sediment that passed by the sensor optics during the sampling interval. July
1-31, 2000 Sampling Period Big Bay a) During the following periods, the depth readings are zero
or negative. The depth data were not deleted because the salinity and dissolved oxygen readings
indicate the data logger was submerged during these periods. 07/01/00 14:00:00-15:00:00 07/04/00
17:30:00 07/05/00 17:30:00-18:30:00 07/06/00 06:30:00-07:30:00; 19:00:00 b) During the following
periods of the June 26-July 10 deployment, the dissolved oxygen (DO) readings were deleted
because the membrane was fouled during the deployment. 07/01/00 00:00:00 THRU 07/10/00 10:30:00
c) During the following periods, the turbidity spiked. The high spikes probably were caused by
an animal, a clump of plant matter, or sediment that passed by the sensor optics during these
sampling intervals. 07/06/00 01:00:00 07/09/00 16:30:00 07/16/00 23:30:00 07/22/00 03:00:00 d)
During the following periods of the July 12-August 2 deployment, the dissolved oxygen (DO)
readings were deleted because the membrane was punctured during the deployment. 07/12/00
10:00:00 THRU 07/31/00 23:30:00 e) During the following periods, the specific conductivity and
salinity readings were lower than usual, but salinity was within the normal polyhaline/euhaline
range (18 and 40 ppt) for this site. The low readings were probably due to extremely low tides
or heavy rainfall events. 07/25/00 06:30:00-10:30:00 St. Pierre a) During the following periods
of the June 26-July 10 and July 12-August 2 deployment periods, the dissolved oxygen (DO)
readings were deleted because the membrane was punctured during the deployment. 07/01/00
00:00:00 THRU 07/10/00 09:30:00 07/12/00 10:30:00 THRU 07/31/00 23:30:00 b) During the following
periods, the salinity readings were less than 18 ppt. These readings are not within normal
polyhaline/euhaline salinity range (18 and 40 ppt) for this site. The low readings were probably
due to extremely low tides or heavy rainfall events. 07/24/00 20:30:00-21:30:00 07/25/00
07:30:00 c) During the following periods, the turbidity readings were greater than 1000 NTU.
These high values reflect very turbid conditions. 07/24/00 20:00:00-21:30:00 d) During the
following periods, the turbidity spiked (700 NTU). The high spikes probably were caused
by an animal, a clump of plant matter, or sediment that passed by the sensor optics during these
sampling intervals. 07/08/00 15:30:00 07/27/00 20:30:00 August 1-31, 2000 Sampling Period Big
Bay a) During the following periods of the July 12-August 2 and August 4-August 16 deployments,
the dissolved oxygen (DO) readings were deleted because the membrane was punctured during the
deployment. 08/01/00 00:00:00 THRU 08/02/00 09:30:00 08/04/00 11:00:00 THRU 08/16/00 10:00:00 b)
The following periods, the salinity readings were less than 18 ppt. These readings are not
within normal polyhaline/euhaline salinity range (18 and 40 ppt) for this site. The low readings
were probably due to extremely low tides or heavy rainfall events. 08/04/00 19:00:00-20:00:00 c)
During the following periods, the turbidity readings were greater than 1000 NTU. The high value
reflects the very turbid conditions that occur during heavy rainfall and high wind events.
08/04/00 18:00:00-19:00:00 08/26/00 04:30:00-05:00:00 d) During the following periods, the
dissolved oxygen (% air saturation) readings were less than 28 % air sat. 08/20/00
07:00:00-07:30:00 e) During the following periods, the pH data were deleted. 08/25/00 13:30:00
THRU 08/29/00 10:30:00 f) During the following periods, the salinity readings were lower than
usual, but were within the normal polyhaline/euhaline salinity range (18 and 40 ppt) for this
site. The low readings were probably due to extremely low tides or heavy rainfall events.
08/04/00 18:00:00-20:00:00 St. Pierre a) During the following periods of the July 12-August 2
and August 4-August 16 deployment periods, the dissolved oxygen (DO) readings were deleted
because the membrane was punctured during the deployment. 08/01/00 00:00:00 THRU 08/02/00
10:30:00 08/04/00 11:30:00 THRU 08/16/00 10:30:00 b) During the following periods, the dissolved
oxygen (% air saturation) was less than 28% air sat. 08/19/00 01:30:00-07:00:00 08/20/00
05:30:00-07:00:00 08/21/00 07:30:00-09:00:00 08/23/00 09:00:00-10:30:00 08/24/00
09:00:00-11:00:00 08/25/00 00:00:00 11:30:00-12:30:00 08/26/00 01:00:00 12:00:00-13:00:00
08/27/00 01:30:00 08/28/00 02:00:00-03:00:00 08/29/00 03:00:00 c) During the following periods,
the turbidity readings were greater than 1000 NTU. The high value reflects the very turbid
conditions that occur during heavy rainfall and high wind events. 08/01/00 14:00:00-15:30:00
September 1-30, 2000 Sampling Period Big Bay a) During the following periods, the dissolved
oxygen (% air saturation) was less than 28% air sat. 09/02/00 07:00:00 09/28/00
00:30:00-02:00:00 03:30:00-04:00:00 09/29/00 03:00:00-04:30:00 09/30/00 04:00:00-05:00:00 b)
During the following periods of the September 1-September 27 deployment, the dissolved oxygen
(DO) readings were deleted because the membrane was punctured during the deployment. 09/03/00
03:00:00 THRU 09/27/00 10:30:00 c) The following periods, the salinity readings were less than
18 ppt. These readings are not within normal polyhaline/euhaline salinity range (18 and 40 ppt)
for this site. The low readings were probably due to extremely low tides or heavy rainfall
events. 09/05/00 02:00:00-10:00:00 09/18/00 03:00:00-08:00:00 d) During the following periods,
the turbidity readings were negative, data was deleted. 09/05/00 05:00:00-07:00:00
08:30:00-09:30:00 18:30:00-19:00:00 09/09/00 21:00:00 09/18/00 05:00:00-06:30:00 09/19/00
23:00:00 09/20/00 02:30:00 20:30:00 09/24/00 05:00:00 08:30:00 16:00:00 e) During the following
periods, the depth readings are zero or negative. The depth data were not deleted because the
salinity and dissolved oxygen readings indicate the data logger was submerged during these
periods. 09/25/00 00:30:00-01:00:00 12:00:00 13:30:00 09/26/00 02:00:00-02:30:00 f) During the
following periods, the data were deleted because the sonde went dry. 09/23/00 11:00:00 09/24/00
11:30:00-12:00:00 09/25/00 12:30:00-13:00:00 09/26/00 13:30:00-14:30:00 g) During the following
periods, negative dissolved oxygen data were deleted. 09/28/00 02:30:00-03:00:00 St. Pierre a)
The following periods, the salinity readings were less than 18 ppt. These readings are not
within normal polyhaline/euhaline salinity range (18 and 40 ppt) for this site. The low readings
for salinity and sp. cond. were probably due to extremely low tides or heavy rainfall events.
09/18/00 06:00:00-06:30:00 b) During the following periods, the dissolved oxygen (% air
saturation) was less than 28% air sat. 09/03/00 08:00:00 09/09/00 12:00:00-12:30:00 09/10/00
01:00:00-01:30:00 13:00:00 09/11/00 01:00:00-02:00:00 13:30:00-14:00:00 09/12/00
02:00:00-03:00:00 14:30:00 09/13/00 02:30:00-03:30:00 15:00:00 09/14/00 03:00:00-04:30:00
09/15/00 03:30:00-05:00:00 16:30:00 09/16/00 04:00:00-06:00:00 09/17/00 05:30:00-06:30:00
09/19/00 06:00:00-07:00:00 19:00:00 09/20/00 06:30:00-08:30:00 20:00:00-21:30:00 09/21/00
07:30:00-09:30:00 09/22/00 09:00:00-10:30:00 09/23/00 10:30:00-11:30:00 23:00:00-23:30:00
09/24/00 00:00:00-00:30:00 10:30:00-12:30:00 09/25/00 00:00:00-01:00:00 11:30:00-13:30:00
09/26/00 00:30:00-03:00:00 14:00:00-14:30:00 09/27/00 03:00:00-04:00:00 October 1-31, 2000
Sampling Period Big Bay a) During the following periods, the dissolved oxygen (% air saturation)
was less than 28% air sat. 10/01/00 05:00:00-06:00:00 10/02/00 05:00:00 10/03/00
05:30:00-07:30:00 10/04/00 06:30:00-08:30:00 10/05/00 07:00:00-09:00:00 10/06/00
07:00:00-08:00:00 10:00:00 21:30:00 10/07/00 09:00:00 10:00:00 23:30:00 10/08/00 00:00:00
10/16/00 19:00:00-20:00:00 10/17/00 19:00:00-20:30:00 10/18/00 21:00:00-21:30:00 b) During the
following periods, negative dissolved oxygen data were deleted. 10/02/00 05:30:00-06:00:00
10/06/00 09:00:00 c) During the following periods of the October 16-November 6 deployment, the
turbidity data were deleted. 10/16/00 19:30:00 THRU 10/24/00 14:00:00 St. Pierre a) During the
following periods, the dissolved oxygen (% air saturation) was less than 28% air sat. 10/20/00
07:30:00 b) During the following periods, no data were recorded by the sonde. The reason for
missing data is not known at this time. 10/18/00 15:00:00 10/19/00 16:00:00 November 1-30, 2000
Sampling Period Big Bay a) During the following periods of the November 9-December 7 deployment,
the turbidity data were deleted because the sensor did not read within the required range during
the post-calibration check 11/09/00 10:30:00 THRU 11/30/00 23:30:00 b) During the following
periods, the depth readings are zero or negative. The depth data were not deleted because the
salinity and dissolved oxygen readings indicate the data logger was submerged during these
periods. 11/11/00 00:30:00-01:00:00 11/26/00 02:00:00 St. Pierre No anomalies December 1-31,
2000 Big Bay a) During the following periods of the November 9-December 7 deployment, the
turbidity data were deleted because the sensor did not read within the required range during the
post-calibration check. 12/01/00 00:00:00 THRU 12/07/00 08:30:00 b) During the following periods
of the December 15-January 11 deployment, the pH data were deleted because the sensor did not
read within the required range during the post-calibration check on the pH 10. 12/15/00 10:30:00
THRU 12/31/00 23:30:00 c) During the following periods, the dissolved oxygen (% air saturation)
was less than 28% air sat. 12/01/00 05:30:00 06:30:00 d) During the following periods, the depth
readings are zero or negative. The depth data were not deleted because the salinity and
dissolved oxygen readings indicate the data logger was submerged during these periods. 12/17/00
06:00:00-08:30:00 18:30:00-21:30:00 12/18/00 07:30:00-08:30:00 20:00:00-21:00:00 12/19/00
08:30:00-09:30:00 20:00:00-23:30:00 12/20/00 10:00:00-10:30:00 12/21/00 23:00:00-23:30:00
12/22/00 12:30:00 12/30/00 16:30:00-18:00:00 12/31/00 17:30:00-18:00:00 St. Pierre No anomalies
Post deployment information LOGICAL CONSISTENCY REPORT: NA COMPLETENESS REPORT: Data collection
period BEGAN ENDED Big Bay Site 12/16/00, 11:00:00 01/14/00, 11:30:00 01/20/00, 17:00:00
02/10/00, 09:30:00 02/11/00, 15:00:00 03/06/00, 11:00:00 03/09/00, 10:00:00 04/04/00, 09:00:00
04/10/00, 10:00:00 05/01/00, 09:00:00 05/05/00, 10:30:00 05/25/00, 10:00:00 05/30/00, 10:00:00
06/07/00, 22:00:00 06/26/00, 11:00:00 07/10/00, 10:30:00 07/12/00, 10:00:00 08/02/00, 09:30:00
08/04/00, 11:00:00 08/16/00, 10:00:00 08/18/00, 10:00:00 08/29/00, 10:30:00 09/01/00, 11:00:00
09/27/00, 10:30:00* 09/27/00, 11:00:00 10/11/00, 10:00:00 10/16/00, 13:00:00 10/24/00, 14:30:00
11/09/00, 10:30:00 12/07/00, 08:30:00 12/15/00, 10:30:00 01/11/01, 10:30:00 * Prior to 09/27/00
at 11:00:00 at Big Bay, the datalogger was replaced with a newly calibrated sonde. St. Pierre
Site 12/16/00, 10:30:00 01/14/00, 11:30:00 01/20/00, 16:00:00 02/10/00, 09:30:00 02/11/00,
17:00:00 03/06/00, 09:30:00 03/09/00, 09:30:00 04/04/00, 09:30:00 04/10/00, 11:00:00 05/01/00,
13:00:00 05/05/00, 11:00:00 05/08/00, 12:30:00 05/30/00, 11:00:00 06/21/00, 10:30:00 06/26/00,
10:30:00 07/10/00, 09:30:00 07/12/00, 10:30:00 08/02/00, 10:30:00 08/04/00, 11:30:00 08/16/00,
10:30:00 08/18/00, 10:30:00 08/29/00, 11:00:00 09/01/00, 11:30:00 09/27/00, 11:30:00 NO DATA WAS
RECORDED FROM 09/27/00, 12:00:00 THRU 10/16/00, 09:30:00 10/16/00, 10:00:00 11/06/00, 15:30:00
11/09/00, 11:00:00 12/07/00, 09:30:00 12/15/00, 11:30:00 01/11/00, 11:00:00 Deleted Data Missing
Data January 1-31, 2000 Sampling Period Big Bay a) During the following periods, data were
deleted because the sonde went dry. 01/04/00 23:30:00 THRU 01/05/00 01:30:00 b) During the
following periods, no data are available due to downtime for servicing and calibrating of data
loggers. 01/14/00 12:00:00 THRU 01/20/00 16:30:00 St. Pierre a) During the following periods of
the December 20, 1999-January 14, 2000 deployment, dissolved oxygen (DO) data were deleted
because the DO membrane was fouled during deployment. The presence of a mud ball in the guard
during retrieval indicate that the flow of oxygen to the membrane was restricted. 01/01/00
00:00:00 THRU 01/14/00 11:30:00 b) During the following periods, no data are available due to
downtime for servicing and calibrating of data loggers. 01/14/00 12:00:00 THRU 01/20/00 15:30:00
c) During the following periods of the January 20-February 10 deployment, dissolved oxygen (DO)
data were deleted because the DO membrane was punctured during deployment. The DO membrane
integrity during post deployment checks confirmed our assumption. The DO readings increased to
200 or more % air saturation when submersed in salt water and dropped below 100 % when removed
from the water. 01/20/00 16:00:00 THRU 01/31/00 23:30:00 d) During the following periods of the
January 20-February 10 deployments, the specific conductivity and salinity readings were
deleted. The downward drift in the readings indicated that the probe was fouled. We couldn't
adjust the readings because no in-situ readings were taken. 01/23/00 13:30:00 THRU 01/31/00
23:30:00 February 1-29, 2000 Sampling Period Big Bay a) During the following periods, no data
are available due to downtime for servicing and calibrating of data loggers. 02/10/00 10:00:00
THRU 02/11/00 14:30:00 b) From 02/11/00 15:00:00 - 02/29/00 23:30:00, the turbidity probe was
not installed. The probe was replaced with a chlorophyll sensor (see Research Objectives
section). c) During the following periods, the data were deleted because the sonde went dry.
02/11/00 17:30:00-18:30:00 02/14/00 08:30:00-10:00:00; 18:00:00-22:30:00 02/15/00
22:00:00-22:30:00 02/16/00 22:30:00-23:30:00 02/17/00 00:00:00 02/19/00 01:30:00-02:00:00
02/20/00 01:30:00-03:30:00; 15:00:00 02/21/00 03:00:00-03:30:00 02/22/00 03:30:00 d) At 17:30 on
February 7, the turbidity spiked (1271 NTU). The high spike was probably caused by an animal, a
clump of plant matter, or sediment that passed by the sensor optics during the sampling
interval. Data was deleted. e) During the following periods, the dissolved oxygen data (DO)
readings were deleted because the membrane was punctured during the deployment. The DO membrane
integrity during post deployment checks confirmed our assumption. The DO readings increased to
200+ %air saturation when submersed in salt water and dropped below 100 % when removed from the
water. 02/01/00 12:00:00 THRU 02/10/00 09:30:00 St. Pierre a) During the following periods of
the January 20-February 10 deployment, the specific conductivity and salinity readings were
deleted. The downward drift in the readings indicated that the probe was fouled. We couldn't
adjust the readings because no in-situ readings were taken. 02/01/00 00:00:00 THRU 02/10/00
09:30:00 b) During the following periods of the January 20-February 10 deployment, dissolved
oxygen (DO) data were deleted because the DO membrane was punctured during deployment. The DO
membrane integrity during post deployment checks confirmed our assumption. The DO readings
increased to 200 or more % air saturation when submersed in salt water and dropped below 100%
when removed from the water. 02/01/00 00:00:00 THRU 02/10/00 09:30:00 c) During the following
periods, no data are available due to downtime for servicing and calibrating of data loggers.
02/10/00 10:00:00 THRU 02/11/00 16:30:00 d) From 02/11/00 17:00:00-02/29/00 23:30:00, the
turbidity probe was not installed. The probe was replaced with a chlorophyll sensor (see
Research Objectives section). March 1-31, 2000 Sampling Period Big Bay a) During the following
periods, data were deleted because the sonde went dry. 03/06/00 01:30:00-02:00:00 b) During the
following periods, no data are available due to downtime for servicing and calibrating of data
loggers. 03/06/00 11:30:00 THRU 03/09/00 09:30:00 c) The chlorophyll probe was installed,
therefore no turbidity was recorded for the entire month of March. St. Pierre a) During the
following periods, no data are available due to downtime for servicing and calibrating of data
loggers. 03/06/00 10:00:00 THRU 03/09/00 09:00:00 c) The chlorophyll probe was installed,
therefore no turbidity was recorded for the entire month of March. April 1-30, 2000 Sampling
Period Big Bay a) During the following periods, no data are available due to downtime for
servicing and calibrating of dataloggers. 04/04/00 09:30:00 THRU 4/10/00 09:30:00 b) During the
following periods of the April 10-May 1 deployment, the dissolved oxygen (DO) readings were
deleted because the membrane was fouled. Many of the DO readings were extremely low (1.0
mg/L), indicating that the DO membrane was blocked by debris or sediment. A post-deployment
calibration reading of 77.6% air saturation confirmed that the membrane was fouled. 04/17/00
03:00:00 THRU 4/30/00 23:30:00 c) The chlorophyll probe was installed therefore no turbidity was
recorded for the entire month of April. St. Pierre a) During the following periods, no data are
available due to downtime for servicing and calibrating of dataloggers. 04/04/00 10:00:00 THRU
4/10/00 10:30:00 b) The chlorophyll probe was installed, therefore no turbidity was recorded for
the entire month of April. May 1-31, 2000 Sampling Period Big Bay a) During the following
periods of the April 10-May 1 deployment, the dissolved oxygen (DO) readings were deleted
because the membrane was fouled. Many of the DO readings were extremely low (1.0 mg/L),
indicating that the DO membrane was blocked by debris or sediment. A post-deployment calibration
reading of 77.6% air saturation confirmed that the membrane was fouled during deployment.
05/01/00 00:00:00-09:00:00 b) During the following periods, no data are available due to
downtime for servicing and calibrating of dataloggers. 05/01/00 09:30:00 THRU 05/05/00 10:00:00
c) During the following periods, data were deleted because the sonde went dry. 05/05/00
16:00:00-16:30:00 05/06/00 16:30:00-17:30:00 05/07/00 17:00:00-18:00:00 05/08/00 18:30:00 d)
During the following periods, no data are available due to downtime for servicing and
calibrating of dataloggers. 05/25/00 10:30:00 THRU 05/30/00 10:00:00 e) The chlorophyll probe
was installed, therefore no turbidity was recorded for the entire month of May. St. Pierre a)
During the following periods, no data are available due to downtime for servicing and
calibrating of dataloggers. 05/01/00 10:00:00 THRU 05/05/00 10:30:00 b) During the following
periods, no data are available because the battery stopped working during the deployment. A
crack in the bulkhead allowed water to seep into battery chamber thus shorting out batteries.
The unit was sent to YSI for repairs. 05/08/00 13:00:00 THRU 05/25/00 09:30:00 c) During the
following periods, no data are available due to downtime for servicing and calibrating of
dataloggers. 05/25/00 10:00:00 THRU 05/30/00 10:30:00 d) During the following periods of the May
30-June 21 deployment, the dissolved oxygen (DO) readings were deleted because the membrane was
punctured during deployment. The DO membrane integrity during post deployment checks confirmed
our assumption. The DO readings spiked to 300+ % air saturation when submersed in salt water and
dropped when removed from the water. 05/30/00 11:00:00 THRU 05/31/00 23:30:00 e) 05/01/00
00:00:00-05/30/00 10:30:00 the chlorophyll probe was installed, therefore no turbidity was
recorded. June 1-30, 2000 Sampling Period Big Bay a) During the following periods of the May
30-June 7 deployment, the dissolved oxygen (DO) readings were deleted because the membrane
malfunctioned during the deployment, as indicated by the erratic DO readings. The DO sensor was
reconditioned prior to the next deployment. 06/05/00 03:00:00 THRU 06/07/00 22:00:00 b) During
the following periods, no data are available because the battery stopped working during the
deployment. A crack in the bulkhead allowed water to seep into battery chamber thus shorting out
batteries. The unit was sent to YSI for repair. 06/07/00 22:30:00 THRU 06/21/00 09:30:00 c)
During the following periods, no data are available due to downtime for servicing and
calibrating of dataloggers. 06/21/00 10:00:00 THRU 06/26/00 10:30:00 d) During the following
periods of the June 26-July 10 deployment, the dissolved oxygen (DO) readings were deleted
because the membrane was fouled during the deployment. A post-deployment calibration reading of
79.8% air saturation confirmed that the membrane was fouled. 06/26/00 13:30:00 THRU 06/30/00
23:30:00 e) From 06/01/00 00:00:00 - 06/26/00 10:30:00 chlorophyll probe was installed,
therefore no turbidity was recorded. f) During the following periods, data were deleted because
the sonde went dry. 06/28/00 11:30:00-12:00:00 06/29/00 12:30:00-13:00:00 St. Pierre a) During
the following periods of the May 30-June 21 deployment, the dissolved oxygen (DO) readings were
deleted because the membrane was punctured during deployment. The DO membrane integrity during
post deployment checks confirmed our assumption. The DO readings increased to 200 or more % air
saturation when submersed in salt water and dropped below 100 % when removed from the water.
06/01/00 00:00:00 THRU 06/21/00 10:30:00 06/26/00 10:30:00 THRU 06/30/00 23:30:00 b) During the
following periods, no data are available due to downtime for servicing and calibrating of
dataloggers. 06/21/00 11:00:00 THRU 06/26/00 10:00:00 July 1-31, 2000 Sampling Period Big Bay a)
During the following periods of the June 26-July 10 deployment, the dissolved oxygen (DO)
readings were deleted because the membrane was fouled during the deployment. A post-deployment
calibration reading of 79.8% air saturation confirmed that the membrane was fouled. 07/01/00
00:00:00 THRU 07/10/00 10:30:00 b) During the following periods, no data are available due to
downtime for servicing and calibrating of dataloggers. 07/10/00 11:00:00 THRU 07/12/00 09:30:00
c) During the following periods of the July 12-August 2 deployment, the dissolved oxygen (DO)
readings were deleted because the membrane was punctured during the deployment. The DO membrane
integrity during post deployment check confirmed our assumption. The DO readings spiked to 300+
% air saturation when submersed in salt water and dropped when removed from the water. 07/12/00
10:00:00 THRU 07/31/00 23:30:00 St. Pierre a) During the following periods of the June 26-July
10 and July 12-August 2 deployment periods, the dissolved oxygen (DO) readings were deleted
because the membrane was punctured during the deployment. The DO membrane integrity during post
deployment checks confirmed our assumption. The DO readings spiked to 300+ % air saturation when
submersed in salt water and dropped when removed from the water. 07/01/00 00:00:00 THRU 07/10/00
09:30:00 07/12/00 10:30:00 THRU 07/31/00 23:30:30 b) During the following periods, no data are
available due to downtime for servicing and calibrating of dataloggers. 07/10/00 10:00:00 THRU
07/12/00 10:00:00 August 1-31, 2000 Sampling Period Big Bay a) During the following periods of
the July 12-August 2 and August 4-August 16 deployments, the dissolved oxygen (DO) readings were
deleted because the membrane was punctured during the deployment. 08/01/00 00:00:00 THRU
08/02/00 09:30:00 08/04/00 11:00:00 THRU 08/16/00 10:00:00 08/21/00 17:30:00 THRU 08/29/00
10:30:00 b) During the following periods, no data are available due to downtime for servicing
and calibrating of datalogger. 08/02/00 10:00:00 THRU 08/04/00 10:30:00 08/16/00 10:30:00 THRU
08/18/00 09:30:00 08/29/00 11:00:00 THRU 08/31/00 23:30:00 c) During the following periods, the
pH data were deleted because the pH probe cracked during the deployment. The low readings
(6.0-6.2) were due to the broken probe. 08/25/00 13:30:00 THRU 08/29/00 10:30:00 St. Pierre a)
During the following periods of the July 12-August 2 and August 4-August 16 deployment periods,
the dissolved oxygen (DO) readings were deleted because the membrane was punctured during the
deployment. 08/01/00 00:00:00 THRU 08/02/00 10:30:00 08/04/00 11:30:00 THRU 08/16/00 10:30:00 b)
During the following periods, no data are available due to downtime for servicing and
calibrating of datalogger. 08/02/00 11:00:00 THRU 08/04/00 11:00:00 08/16/00 11:00:00 THRU
08/18/00 10:00:00 08/29/00 11:30:00 THRU 08/31/00 23:30:00 September 1-30, 2000 Sampling Period
Big Bay a) During the following periods of the September 1-September 27 deployment, the
dissolved oxygen (DO) readings were deleted because the membrane was punctured during the
deployment. 09/03/00 03:00:00 THRU 09/27/00 10:30:00 b) During the following periods, no data
are available due to downtime for servicing and calibrating of datalogger. 09/01/00 00:00:00
THRU 09/01/00 10:30:00 c) During the following periods, the turbidity readings were deleted. The
negative (-2 to -933 NTU) readings were caused by debris on the lens, a wiper malfunction, or
animal interference. 09/05/00 05:00:00-07:00:00; 08:30:00-09:30:00; 18:30:00-19:00:00 09/09/00
21:00:00 09/18/00 05:00:00-06:30:00 09/19/00 23:00:00 09/20/00 02:30:00; 20:30:00 09/24/00
05:00:00; 08:30:00; 16:00:00 d) From 09/27/00 11:00:00 - 09/30/00 23:30:00, the chlorophyll
probe was installed, therefore turbidity data was not recorded. e) During the following periods,
the data were deleted because the sonde went dry. 09/23/00 11:00:00 09/24/00 11:30:00-12:00:00
09/25/00 12:30:00-13:00:00 09/26/00 13:30:00-14:30:00 g) During the following periods, negative
dissolved oxygen (DO) data were deleted. The negative readings probably were caused by an animal
or a clump of plant matter or sediment that blocked the flow of oxygen across the membrane
during the sampling interval. 09/28/00 02:30:00-03:00:00 St. Pierre a) During the following
periods, no data are available due to downtime for servicing and calibrating of datalogger.
09/01/00 00:00:00 THRU 09/01/00 11:00:00 d) During the following periods, no data are available
due to operator error. 09/27/00 12:00:00 THRU 09/30/00 23:30:00 October 1-31, 2000 Sampling
Period Big Bay a) During the following periods, no data are available due to downtime for
servicing and calibrating of datalogger. 10/11/00 10:30:00 THRU 10/16/00 02:30:00 b) During the
following periods, no data are available due to dead batteries. 10/24/00 14:30:00 THRU 10/31/00
23:30:00 c) From 10/01/00 00:00:00-10/11/00 10:00:00, the chlorophyll probe was installed,
therefore no turbidity was recorded. d) During the following periods, negative dissolved oxygen
data were deleted. The negative readings probably were caused by an animal or a clump of plant
matter or sediment that blocked the flow of oxygen across the membrane during the sampling
interval. 10/06/00 08:30:00-09:00:00 e) During the following periods of the October 16-November
6 deployment, the turbidity data were deleted because the readings were negative (> 2
NTU). The negative readings were due to a sensor malfunction: the sensor did not read within the
required range during the post-calibration check. The malfunction was due to metal oxidization
on some of the connectors. The connectors were cleaned prior to next deployment. 10/16/00
19:30:00 THRU 10/24/00 14:00:00 St. Pierre a) During the following periods, no data are
available due to operator error. 10/01/00 00:00:00 THRU 10/16/00 09:30:00 November 1-30, 2000
Sampling Period Big Bay a) During the following periods, no data are available due to dead
batteries. 11/01/00 00:00:00 THRU 11/06/00 13:00:00 b) During the following periods, no data are
available due to downtime for servicing and calibrating of datalogger. 11/06/00 13:30:00 THRU
11/09/00 10:00:00 c) During the following periods of the November 9-December 7 deployment, the
turbidity data were deleted because the sensor did not read within the required range during the
post-calibration check 11/09/00 10:30:00 THRU 11/30/00 23:30:00 St. Pierre a) During the
following periods, no data are available due to downtime for servicing and calibrating of
datalogger. 11/06/00 09:00:00 THRU 11/09/00 10:30:00 December 1-31, 2000 Sampling Period Big Bay
a) During the following periods of the November 9-December 7 deployment, the turbidity data were
deleted because the sensor did not read within the required range during the post-calibration
check. 12/01/00 00:00:00 THRU 12/07/00 08:30:00 b) During the following periods of the December
15-January 11 deployment, the pH data were deleted because the sensor did not read within the
required range during the post-calibration check on the pH 10. 12/15/00 10:30:00 THRU 12/31/00
23:30:00 c) During the following periods, no data are available due to downtime for servicing
and calibrating of datalogger. 12/07/00 09:00:00 THRU 12/15/00 10:00:00 d) From 12/15/00
10:30:00 - 12/31/00 23:30:00 the chlorophyll probe was installed, therefore no turbidity was
recorded. St. Pierre a) During the following periods, no data are available due to downtime for
servicing and calibrating of datalogger. 12/07/00 10:00:00 THRU 12/15/00 11:00:00 b) From
12/15/00 11:30:00 - 12/31/00 23:30:00 the chlorophyll probe was installed, therefore no
turbidity was recorded. LINEAGE/PROCESS STEP: PROCESS DESCRIPTION: Additional Description: Entry
verification The data are directly downloaded from the YSI Model 6000 sonde to comma- delimited
files (*.csv) and PC6000 files (*.dat). The comma-delimited files are imported into Excel 97
where they are formatted and processed by macros that are supplied by the CDMO. Various macros
are designed to: 1) check data files for missing data points, 2) fill all cells that do not
contain data with periods (.), 3) convert the data columns to the CDMO-approved formats for
time, date and numeric variables, 4) find all data that are out of acceptable range for the data
logger's sensors and output the anomalous data to a file (*.dat), and 5) save the files as Excel
worksheets (*.xls). The anomalous data are evaluated to determine whether to flag or delete the
suspect data. Data are flagged if the values are: 1) outside the range expected for the site, 2)
outside the range of measurements established for the sensors, 3) outside the range of accuracy
established for the sensors, or 4) outside the range established for good water quality
conditions (i.e., dissolved oxygen 28%). Data are deleted if the anomalies are
attributed to: 1) a sensor malfunction, 2) exposure of sensors during low tide, or 3) fouling of
sensors by aquatic organisms, debris, or sediment. Sensor malfunctions are detected if the
voltage reading of the sensor is outside the range established for the sensor or the sensor will
not calibrate. Fouling of sensors is detected by comparing in- situ sensor readings with
measurements (see Research Methods section). In addition, sensor readings that differ
significantly (10%) from standard solution (i.e., conductivity) suggest that the sensor
was fouled during deployment. After corrections are made to the Excel worksheet (*.xls), the
files are exported as tab-delimited files (*.txt) to the CDMO. Saundra Upchurch and Amy Whitaker
are responsible for these tasks. PROCESS DATE: 20060207
Access Constraints
Data collected in conjunction with the National Estuarine Research Reserve
System's (NERRS) System-wide Monitoring Program (SWMP) is considered public information. Please
see site for further information: http://cdmo.baruch.sc.edu/aboutdata.htm DISTRIBUTION
LIABILITY: Distribution The Centralized Data Management Office re-processed all SWMP water data
... collected from 1995-2002 to include an identifying station code (three letter reserve code, two
letter sampling site code and data type code), a four digit year date stamp (mm/dd/yyyy) and a
corrected time column (hh:mm). With the new format, the use of periods to denote deleted or
missing data has been abandoned. Hence, all periods contained in the SWMP water data collected
prior 2003 were removed and left blank.
Use Constraints
The principal investigator (PI) listed in the enclosed metadata retains the right
to be fully credited for having collected and processed the data. Please see the site for
further information: http://cdmo.baruch.sc.edu/aboutdata.htm
Data Set Progress
COMPLETE
Distribution
Distribution Format:
Ascii File, Formatted For Text Attributes, Declared Format (ASCII)NA
Fees:
Data is available at no charge.
Personnel
Role:
TECHNICAL CONTACT
Role:
DIF AUTHOR
Contact Address:
SC Department of Natural Resources
City:
Charleston
Province or State:
SC
Postal Code:
29412
Country:
USA
Creation and Review Dates
DIF Creation Date:
2006-02-08
Last DIF Revision Date:
2008-05-02
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