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Kachemak Bay Research Reserve (KAC) NERR Water Quality Metadata January - December 2002 Latest Update: September 11, 2003
Entry ID: CDMO_kacwq01-12.02m

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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 The YSI electronic data loggers are programmed to measure the water temperature, specific conductivity, dissolved oxygen, pH, and turbidity conditions at 15-minute intervals. Two permanent and two seasonal instruments are located in Kachemak Bay. The permanent sites are located on the northeast side of the bay at the end of the Homer spit and the second on the southwest side of the bay in Seldovia. The seasonal moorings are located at endpoints of the Bay, Port Graham and Bear Cove, spanning a 40 mile distance. The circulation in Kachemak Bay is driven primarily by the 10 meter tidal flux. Regional circulation is characterized by generally cyclonic ocean currents in the Gulf of Alaska flowing onto the shelf off of Cook Inlet. Nutrient rich bottom water is upwelled and mixed with surface water. These enriched waters stream into Kachemak Bay, the inflow tending to stay along the southern shore and the Port Graham and Seldovia instruments, while water flowing out of the bay stays along the Inner Bay and north shore, flowing past the Bear Cove and Homer instruments. These trapped coastal flows separate the bay into two distinct ecosystems and the instruments are positioned to reflect this distinction. As the inflowing water proceeds up the bay, fresh water runoff from the surrounding ice fields and watersheds dilute the salinity and increase the sediment load in the path of the Bear Cove and then Homer instrument. The inflowing water, in the path of the Port Graham and Seldovia instruments, therefore, initially supports a marine system while the north out flowing water of the Bear Cove, and Homer sites, is more estuarine. The Kachemak Bay water quality instruments capture this difference with deployments along the north and south shores. These seasonal moorings monitor the degradation of the marine water along and across the axis of the bay. These data will be used to supplement studies on primary productivity, larval distribution, settlement, recruitment, growth rates, community dynamics, and biodiversity in the bay.

Related URL
Link: GET DATA


Parent DIF
This description is a member of a collection. The collection is described in
noaanosnerr_d_nerrparent


Geographic Coverage
 N: 59.81746 S: 59.343002  E: -150.8916  W: -151.88657

Data Set Citation
Dataset Originator/Creator: Dr. G. Carl Schoch, Scott Pegau
Dataset Title: Kachemak Bay Research Reserve (KAC) NERR Water Quality Metadata January - December 2002 Latest Update: September 11, 2003
Dataset Release Date: 2006-02-14
Data Presentation Form: Unknown
Other Citation Details: NA
Online Resource: http://cdmo.baruch.sc.edu/


Temporal Coverage
Start Date: 2002-01-01
Stop Date: 2002-12-31


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA


Science Keywords
TERRESTRIAL HYDROSPHERE >SURFACE WATER >SURFACE WATER PROCESSES/MEASUREMENTS >WATER DEPTH    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >CONDUCTIVITY    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >DISSOLVED GASES >DISSOLVED OXYGEN    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >PH    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >TURBIDITY    [Definition]
TERRESTRIAL HYDROSPHERE >WATER QUALITY/WATER CHEMISTRY >WATER TEMPERATURE    [Definition]
OCEANS >SALINITY/DENSITY >SALINITY    [Definition]
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >WETLANDS >ESTUARINE WETLANDS    [Definition]
BIOSPHERE >ECOSYSTEMS >AQUATIC ECOSYSTEMS >WETLANDS >ESTUARINE WETLANDS


ISO Topic Category
BIOTA
INLAND WATERS
OCEANS


Project
NERR >National Estuarine Research Reserve    [Information]


Quality
ATTRIBUTE ACCURACY REPORT: Anomalous/Suspect Data Note: Outliers in the data are defined to be any point greater than 4 standard deviations from the mean of the 24 hour period surrounding that point. Points flagged as an outliers were removed from the dataset. Note: Between sonde rotations we typically encounter the following jumps in data as a result of calibration offsets and probe accuracy: pH: +/- 0.01 DO %: +/- 10 DO Conc:+/- 1 mg/l January 1–-31 2002 Homer a) Following the sonde deployment on 1/12, 13:00, incompatibilities of programming and setup was experienced between the 6200 DCP and 6600 sonde. Due to these differences in setup, the column headings are reported incorrectly on the raw data, but properly aligned for the edited version. b) Time gaps appear at the following period, due to no instrument deployed. 1/7, 17:00 – 1/12, 12:30 c) A DO percent outlier was removed by software on 01/12 13:00 d) A pH outlier was removed at 01/12 13:00 Seldovia a) For the sonde deployment between the periods of 01/11, 17:00 and 01/12, 12:30, incompatibilities of programming and setup was experienced between the 6200 DCP and 6600 sonde. Due to these differences in setup, DO Concentration and Specific Conductivity data were not recorded for this period. b) Time gaps appear during the following periods, possibly due to a power surge or interruption in relaying data. No data is recorded for the following periods. 1/01, 00:00 - 1/11, 16:30 c) High turbidity values were removed at 01/15 00:00, 01/27 08:30 d) Turbidity outliers were removed at 01/19 14:00, 01/26 20:00 e) A pH outlier was removed at 01/17 22:30 f) Do (% and mg/L) were deleted for the following dates/times due to probe malfunction. Probe had to be reconditioned for next deployment. 01/11/02 17:00 through 02/21/02 09:30 February 1-28, 2002 Homer a) Following the sonde deployment on 02/20, 11:30, incompatibilities of programming and setup was experienced between the 6200 DCP and 6600 sonde. Due to these differences in setup, the column headings are reported incorrectly on the raw data, but properly aligned for the edited version. b) There is a suspect drop in salinity that appears to be the result of a low calibration offset during the following deployment: 2/20, 12:00 – 3/11, 11:00 c) Turbidity >400 was removed at 02/25 07:30 d) Turbidity < -2 was removed at 02/20 11:30, 02/23 08:30, 02/23 23:30 - 02/24: 01:30 e) Turbidity outliers were removed at 02/09 17:30, 02/12 04:00, 02/23 02:00 f) PH outlier was removed at 02/09 17:00 Seldovia a) There is suspect high DO during the end of the 01/02 deployment period, especially with the drop of DO values with the deployment of the next sonde on 2/21, 10:00. A punctured membrane is suspected during the following period: 1/12,12:45 – 2/21, 09:45 b) High specific conductivity and salinity were recorded during the following deployment period. Data has been deleted: 2/21 10:00 - 3/13 11:00 c) Negative turbidity was removed at 02/21 10:00 d) Turbidity outliers were removed at 02/12 11:00, 02/19 16:30, 02/26 03:00 e) PH outliers were removed at 02/03 13:00, 02/05 15:00, 02/07 10:00, 02/08 01:00, 02/23 14:00, 02/25 09:00 - 09:30, f) Do (% and mg/L) were deleted for the following dates/times due to probe malfunction. Probe had to be reconditioned for next deployment. 01/11/02 17:00 through 02/21/02 09:30 March 1 – 31, 2002 Homer a) During mid-deployment the data and time are recorded twice in the data, causing the columns headings to be reported incorrectly on the raw data. The 6200 was re-configured after the error was found and started reporting data correctly. 3/11/02 16:00 – 3/12/02 14:45 b) During the following time period the 6600 was reporting depth in feet and conversion to meters was performed. 3/1/02 00:00 – 3/28/02 11:00 c) Following the sonde deployment on 03/12 15:00, incompatibilities of programming and setup was experienced between the 6200 DCP and 6600 sonde. Due to these differences in setup, the column headings are reported incorrectly on the raw data, but properly aligned for the edited version. d) Time gaps appear during the following periods, possibly due to a power surge or interruption in relaying data. No data is recorded for these periods. 3/28, 11:30 – 3/28, 13:00 e) PH was out of range and deleted 03/11 16:00 – 03/12/02 15:00, 03/15 05:30 f) Turbidity was not recorded for deployment 03/12 15:00 – 04/16 09:00. Seldovia a) Following the sonde deployment on 03/13 11:30, incompatibilities of programming and setup was experienced between the 6200 DCP and 6600 sonde. Due to these differences in setup, the column headings are reported incorrectly on the raw data, but properly aligned for the edited version. b) Time gaps appear during the following periods, possibly due to a power surge or interruption in relaying data. No data is recorded for the following periods: 03/28 17:00 c) High specific conductivity and salinity were recorded during the following deployment period. Data were deleted: 2/21 10:00 - 3/13 11:30 d) High turbidity values were removed from 03/13 14:00, 03/28 14:00 – 3/31 23:30 e) Turbidity outliers were removed from 03/09 12:30, 03/10 19:00, 03/11 23:00, 03/26 20:00 April 1-30, 2002 Homer a) The first deployment, during the following time period, contains data collected from the 6600 via 6200 DCP, in 15 minute intervals. 04/01 00:00 – 04/16 09:00 b) The second deployment, during the following time period, contains data collected directly from the 6600, in 30 minute intervals. 04/19 11:30 – 04/30 23:45 c) Time gaps appear during the following period. Loss of data a result of hard-drive failure of receiving DCP computer. No data is recorded for these periods. 04/08 00:30 – 01:00 d) A pH outlier was removed 04/30 00:00 e) Following the sonde deployment on 03/12 15:00, incompatibilities of programming and setup was experienced between the 6200 DCP and 6600 sonde. Due to these differences in setup, the column headings are reported incorrectly on the raw data, but properly aligned for the edited version. f) Turbity outliers were removed at 04/21 06:30, 04/22 07:30, 04/28 08:30 g) Turbidity was not recorded for deployment 03/12 15:00 – 04/16 09:00. Seldovia a) Time gaps appear during the following period because of a hard-drive failure on the logging computer. 04/16 09:00 –04/22 10:30 b) Time gaps appear during the following periods, possibly due to a power surge or interruption in relaying data. No data is recorded for these periods: 4/08 01:00 – 01:30 c) Following the sonde deployment on 03/28, 14:00, (continuing until 04/22, 11:00) incompatibilities of programming and setup was experienced between the 6200 DCP and 6600 sonde. Due to these differences in setup, the column headings are reported incorrectly on the raw data, but properly aligned for the edited version. d) The pH data from the following deployment is suspect: 4/22 11:00 – 4/24 12:00 e) PH outliers were removed at 04/01 14:00, 04/03/02 19:00, 04/04/02 06:00, 04/07 01:00, 04/11 04:00 f) Turbidity outliers were removed at 04/25 22:00, 04/27 19:00 g) An error in setup caused DO percent, DO concentration, and Salinity to not be recorded between 4/24 14:00 and 5/28 11:00 h) High turbidity values were removed from 04/01 00:00 – 04/16 08:30 May 1-31, 2002 Homer a) Time gaps appear during the following period. Loss of data a result of hard-drive failure of receiving DCP computer. No data is recorded for these periods. 5/08 14:30 – 5/08 15:30, 5/30 09:00 b) Turbidity outliers were removed at 05/01 11:00, 05/03 06:00, 05/15 12:30, 05/18 13:30, 05/21 15:00, 05/23 05:00, 05/25 18:30, 05/27 05:00 Seldovia a) An error in setup caused DO percent, DO concentration, and Salinity to not be recorded between 4/24 12:30 and 5/28 10:30 b) Turbidity outliers were removed at 05/07 10:00, 05/10 13:00, 05/13 13:30, 05/15 03:30, 17:00, 05/17 18:30, 05/23 16:00, 05/29 23:30 June 1-30, 2002 Homer a) Time gaps appear during the following period. Loss of data a result of hard-drive failure of receiving DCP computer. No data is recorded for these periods. 6/20 15:30 b) High turbidity values were removed at 06/04 18:30, 06/14 11:30, 22:00, 06/15 21:30, 06/16 09:30, 06/26 16:00, 17:00, 18:00 c) Turbidity outliers were removed at 06/06 19:00, 06/07 18:00, 06/08 08:00, 06/11 21:30, 06/13 17:00, 06/20 01:00, 22:30, 06/21 19:30, 06/24 19:00 d) A DO percent and DO concentration outlier was removed at 06/25 15:30, Seldovia a) There is a suspect DO drop during the following deployment period: 5/28 11:30 – 6/18 15:30 b) The DO membrane was punctured and data removed for the following time period: 6/18 16:00 - 7/4 09:00 c) Negative turbidity values, most likely caused by an error in calibration technique were removed from 06/18 16:00, 17:00 - 06/19 12:30, 17:30, 18:30, 19:30 - 06/20 02:30, 03:30 - 06:00, 07:00 - 13:00, 14:00 - 16:30, 17:30 - 18:00, 19:00 - 19:30, 20:30 - 06/21 03:00, 04:00 - 05:30, 07:00, 08:00 - 08:30, 09:30, 10:30 - 15:00, 17:30, 18:30 - 06/22 04:00, 06:00, 12:00 - 14:00, 15:00, 16:30 - 18:00, 19:30 - 06/23 03:30, 04:30, 08:00 - 09:30, 10:30, 13:30 - 16:00, 18:00, 19:30 - 20:00, 21:00, 22:00 - 06/24 03:00, 05:00, 06:00, 10:30, 11:30, 12:30, 14:00 - 17:00, 18:30, 21:00 - 22:00, 23:00 - 06/25 04:30, 06:00, 10:00 - 10:30, 11:30 - 12:30, 13:30 - 17:00, 19:30 - 20:30, 21:30 - 23:00, 06/26 00:00 - 03:00, 04:00, 05:00 - 05:30, 06:30, 06/27 01:00 - 04:00, 09:30, 11:00, 12:00, 13:30 - 16:00, 17:00 - 17:30, 22:00 - 06/28 04:00, 05:00 - 05:30, 09:30, 11:30 - 14:30, 15:30 - 18:00, 22:30 - 06/29 06:00, 07:30, 12:30 - 14:30, 15:30 - 18:00, 19:00 - 21:30, 22:30 - 23:30, 06/30 00:30 - 05:00, 06:00 - 08:00, 09:00, 11:00, 13:00 - 13:30, 15:30 - 18:30, 19:30 - 20:30, d) All turbidity data 06/18 1600 through the end of the month is suspect because of calibration. e) Turbidity outliers were removed on 06/01 13:30, 06/03 14:30, 06/09 18:00, 06/14 22:00, 06/17 12:30, 06/20 16:30, 06/27 13:00 Port Graham a) The sonde during the following deployment period experienced a pH sensor failure. The pH data for this deployment is deleted: 6/21 10:00 – 7/10 08:30 b) Negative turbidity data was deleted during the following deployment period: 6/21 10:00 – 7/10 08:30 Bear Cove a) Data does not begin until 6/18 11:30 b) Turbidity reported a –22 in 0 post-cal, yet recorded no negative data during the deployment. The turbidity data is suspect for this deployment period: 6/18 11:30 - 7/02 08:30 c) Turbidity outliers were removed on 06/21 14:00, 06/22 20:00 July 1-31, 2002 Homer a) The DO membrane was punctured and data deleted for the following time period: 7/2 15;00 – 7/30 20:30 b) High turbidity values were removed at 07/01 09:00, 07/12 22:00, 07/13 10:00, 07/24 01:30, 07/29 22:00 Seldovia a) The DO membrane was punctured and data removed for the following time period: 6/18 16:00 - 7/4 09:00 b) Negative turbidity data was removed from 07/01 01:00, 02:30, 04:00 - 05:30, 08:30, 17:30 - 19:00, 20:30, 21:30, 22:30 - 07/02 00:30, 01:30, 02:30 - 04:00, 05:00, 06:00, 07:00 - 08:00, 09:30, 15:00 - 18:00, 19:00 - 07/03 03:30, 04:30, 05:30 - 19:00, 20:30 - 21:30 c) All turbidity data before 07/04 09:30 should be considered suspect. Port Graham a) The sonde during the following deployment period experienced a pH sensor failure. The pH data for this deployment is deleted: 6/21, 10:00 – 7/10, 08:30 b) The sonde during the following deployment had experienced pH failure and probe was removed during this deployment: 7/28 18:00 – 9/3 20:00 c) A DO outlier was removed from 07/10 09:30 d) Turbidity outliers were removed from 07/15 05:30, 07/16 05:00, 07/17 08:30, 07/20 06:30, 07/22 00:30. Bear Cove a) The mooring was moved to deeper water from 7/3 18:30 to 7/9 7:30, then moved back to it's original location: b) pH outliers were removed on 07/07 05:00, 07/08 04:30 c) A high turbidity value was removed on 07/12 20:00 d) Turbidity outliers were removed on 07/07 06:00, 07/08 06:00, 07/11 22:00, 07/14 01:00, 07/18 12:30 07/26 22:00, August 1-31, 2002 Homer a) Turbidity data is negative and removed for the following deployment period: 8/28 15:00 – 10/1 14:00 b) A turbidity outlier was removed 08/25: 07:30. c) DO membrane was punctured during following deployment and data is suspect: 8/28 15:00 – 10/1 14:00 Seldovia a) The DO membrane was puncture and data deleted for the following time period: 8/1 14:30 – 9/4 13:30 b) Negative turbidity due to incorrect calibrations have been removed for 8/1 14:30 – 9/4 13:30 Port Graham a) Data gaps exits on 8/31 11:30, 14:00, 16:30 - 17:30 due to possible battery problems b) The sonde during the following deployment had experienced pH failure and probe was removed during this deployment: 7/28 18:00 – 9/3 20:00 c) High turbidity values were removed on 08/22 23:30, 08/23 00:30, 06:00, 15:00, 08/24 16:00, 08/26 10:00, 08/27 10:00, 08/30 12:30, 08/31 00:30 - 01:00, 12:30 - 13:30, 20:00, 23:30 d) A DO outlier was removed on 08/25 11:30 e) Turbidity outliers were removed on 08/01 01:30, 08/14 04:00, 08/18 03:30, 08/19 09:30, 23:30, 08/21 21:30, 08/2: 10:00, 08/24 07:30. Bear Cove a) DO membrane was punctured during following deployment and data were deleted: 8/1 20:00 – 9/11 11:00 b) A suspect drop in pH is reported during the following period: 8/28 15:00 – 8/30 20:30 c) A pH outlier was removed on 08/18 04:00 d) Turbidity outliers were removed on 08/08 07:30, 08/11 06:30, 08/15 14:30, 08/19 08:30, 08/21 08:00, 08/24 05:00, 08/28 04:00, 08/29 19:30, 08/31 07:00 September 1-30, 2002 Homer a) Turbidity data is negative and removed for the following deployment period: 8/28 15:00 – 10/1 14:00 b) DO membrane was punctured during following deployment and data is suspect: 8/28 15:00 – 10/1 14:00 Seldovia a) The DO membrane was puncture and data deleted for the following time period: 8/1 14:30 – 9/4 13:30 b) Turbidity data is negative because of incorrect calibration and is removed up to 9/4 13:30 c) Turbidity data after 9/4 13:30 remains negative, but within the instrument accuracy so it has been retained. It should be considered suspect data. d) High Turbidity value (174 NTU) on 09/06/02 02:30 considered suspect. Port Graham a) The sonde during the following deployment had experienced pH failure and probe was removed during this deployment: 7/28 18:00 – 9/3 20:00 b) There is a suspect drop in specific conductivity and salinity during the following period: 9/20 00:00 – 9/20 13:00 c) Turbidity data is negative and removed for the following deployment period: 9/3 20:30 – 10/2 12:30 d) Turbidity anomalies for the following period were removed: 09/01 01:00, 19:30; 09/02 02:00, 06:30, 23:00; 09/03 08:00 Bear Cove a) Data gaps exist on 9/7 00:00, 04:00, 05:30, and 07:30-08:30 because of unknown problems with the instrument. b) A pH outlier was removed on 09/05: 00:30 c) Turbidity outliers were removed on 09/01 07:30, 09/04 03:30, 09/05 05:30, 09/06 04:30, 09/08 15:30 d) The last instrument recovery occurred on 9/11 at 11:00, no data exists after that time. e) DO membrane was punctured during following deployment and data were deleted: 8/1 20:00 – 9/11 11:00 October 1-31, 2002 Homer a) Turbidity wiper was covering optic during the following deployment periods and all turbidity data have been deleted: 10/01 14:30 – 10/31 11:00 and 10/31 14:00. b) The unattended sampling interval was set to 15 hours instead of 15 minutes due to an error in programming during the following deployment interval: 10/02 05:00 – 11/15 14:00 c) DO percent errors were removed at 10/14 12:00, 10/27 13:00 d) DO membrane was punctured during following deployment and data is suspect: 8/28 15:00 – 10/1 14:00 e) Negative turbidity data removed 10/01 00:00 – 10/01 14:00 Seldovia a) There is a suspect drop in pH that appears to be the result of a low calibration offset during the following deployment: 10/9 18:30 – 11/14 14:15 b) There is a suspect rise in DO for an unknown reason during the following deployment period: 10/9 18:30 – 11/14 14:15 c) Turbidity data until 10/12 10:30 remains negative but normally within the instrument accuracy. This data has been retained, but should be considered suspect. d) The following turbidity data was negative below the accuracy of the instrument and has been removed: 10/10 04:00, 10:00, 18:00, 19:00 – 21:00 10/12 04:30, 09:30 – 10:00 10/12 11:00 – 10/31 23:30 e) High turbidity value 10/5 04:00 (326 NTU) suspect. Possibly caused by fish. f) DO (% and mg/L) were deleted for the following dates/times due to membrane puncture: 10/13/02 13:00 through 11/14/02 14:00 Port Graham a) Turbidity readings for the following deployment were all negative and deleted: 9/3 20:30 – 10/2 12:30 Homer Dolphin a) An initial test deployment began on 10/24 10:00 b) A DO outlier was removed on 10/26 23:30 c) PH ouliers were removed on 10/25 23:00, 10/26 23:30 d) Turbidity outliers were removed on 10/25 08:30, 10/31 09:30 November 1-30, 2002 Homer a) The unattended sampling interval was set to 15 hours instead of 15 minutes due to an error in programming during the following deployment interval: 10/02 05:00 – 11/15 14:00 b) High turbidity values were removed at 11/01 05:00, 20:00, 11/02 11:00, 11/03 02:00, 17:00, 11/04 08:00, 23:00, 11/05 14:00, 11/06 05:00, 20:00, 11/07 11:00, 11/08 02:00, 17:00, 11/09 08:00, 23:00, 11/10 14:00, 11/11 05:00, 20:00, 11/12 11:00, 11/13 02:00, 17:00, 11/14 08:00, 23:00, 11/15 14:00, 11/16 08:30 – 11/17 09:00, 11/18 10:00 – 17:30 c) A DO percent and concentration outlier was removed at 11/15 14:00 d) A pH outlier was removed at 11/15 14:00 e) The Homer site was removed on 11/20 13:00 after a storm destroyed the mount. Future data will be collected at the Homer Dolphin site f) Negative turbidity values less than –2 were deleted for the following dates/times: 11/20/02 04:00 – 05:30 Seldovia a) Turbidity data 11/1 00:00 – 11/14 14:30 remains negative below the instrument accuracy and has been removed. Turbidity data after this time remain near zero, but typically within the stated instrument accuracy. Values <-2 have been removed. The negative values are likely a combination of poor calibration technique, instrument accuracy, and clear water. b) A pH outlier was removed on 11/24 23:00 c) There is a suspect drop in salinity for an unknown reason during the following period: 11/10 08:30 – 11/14 15:00. Data retained. d) Turbidity for the following dates/times were deleted because they fell outside the 4 standard deviation: 11/16 21:30, 11/19 20:30, 11/21 00:30, 11/29 08:00. e) DO (% and mg/L) were deleted for the following dates/times due to membrane puncture: 10/13/02 13:00 through 11/14/02 14:00 Homer Dolphin a) DO and pH outliers were removed on 11/02 18:00, 11/19 21:00, 11/20 21:00, 11/21 21:30, 11/28 02:30(DO only). These outliers may be the result of a fish processing effluent pipe in the area. The effects of the effluent remain unknown at this time. b) Turbidity outliers were removed at 11/01 00:00, 11/02 04:00 c) High turbidity values were removed at 11/23 08:30, 13:00 December 1-31, 2002 Homer Dolphin a) DO percent outliers were removed on 12/01: 18:30, 12/03: 20:00, 12/04: 21:00, 12/05: 21:30, 12/07: 23:00, 12/08: 11:30, 12/14: 17:00, 12/16: 18:00, 12/18: 19:30, 12/19: 20:00, 12/22: 22:00, 12/25: 23:30, 12/29: 16:00, 12/30: 17:30. b) DO concentration outliers were removed on 12/01: 18:30, 12/04: 21:00, 12/18: 19:30, 12/19: 20:00, 12/25: 23:30, 12/30: 17:30. c) pH outliers were removed on 12/01: 18:30, 12/02: 19:30, 12/03: 20:30, 12/04: 21:00, 12/05: 21:30, 12/12: 01:30, 12/16: 18:00, 12/18: 19:30-20:00, 12/19: 20:00-20:30, 12/25: 23:30, 12/30: 17:30-18:00. The DO and pH outliers are all low values and may be the result of a fish processing effluent pipe in the area. The effects of the effluent remain unknown at this time. d) Turbidity outliers were removed at 12/03: 06:00, 12/07: 21:30, 12/18: 09:00, 12/19: 13:00 Seldovia a) Turbidity data through the month remains near zero, but typically within the stated instrument accuracy. Values <-2 have been removed. The negative values are likely a combination of poor calibration technique, instrument accuracy, and clear water. b) High Turbidity data (>400 NTU) were removed on 12/26 12:30 – 12/27 06:00 c) PH outliers were removed on 12/06 09:30, 12/07 00:00 d) DO (% and mg/L) are suspect for deployment 12/09/02 11:00 through 12/31/02 23:30. Low DO reading (66.4%) at post deployment calibration check. DO electrode had to be reconditioned prior to following deployment. e) Turbidity outliers were removed 12/07 17:30 and 12/29 18:30. Post deployment information End of Deployment Post-Calibration Readings in Standard Solutions: ** n/r = not recorded** Site Date Conductivity pH Turbidity DO (Air Sat) Depth (Std:50.0) (Std:7) (Std:0) (Std:100%) (m) HO 01/07/02 ** ** ** ** ** 02/20/02 47.80 7.08 0.00 108.0 0.102 03/11/02 48.9 7.08 4.5 103.0 0.305 03/12/02 49.72 6.83 2.1 93.2 0.209 04/18/02 48.7 7.01 -9.8 104.9 0.217 04/19/02 49.7 6.93 5.0 104.2 0.003 05/27/02 54.4 7.02 0.5 98.2 -0.204 07/02/02 50.01 6.88 2.2 105.9 0.182 07/30/02 49.87 7.06 5.1 DO Punct 0.086 08/28/02 50.45 7.22 14.1 96.6 -0.153 10/01/02 49.65 7.01 -5.3 97.8 -0.049 11/15/02 49.92 6.99 4.8 106.2 -0.257 11/20/02 50.75 6.79 -3.3 97.5 -0.084 SE 01/11/02 49.32 7.02 0.02 102.0 0.002 02/21/02 ** ** ** ** ** 03/13/02 57.7 7.17 ** 98.3 -0.117 04/22/02 51.1 6.86 0.8 ** ** 05/28/02 50.24 7.09 -0.1 102.0 0.01 06/18/02 49.7 7.01 2.00 ** 0.292 07/04/02 50.02 6.88 ** ** 0.03 08/01/02 ** ** ** 96.2 ** 09/04/02 50.33 7.05 -7.3 DO Punct -0.21 10/09/02 49.48 6.96 1.7 101.6 0.129 11/14/02 50.88 7.01 -1.4 117.1 -0.173 12/09/02 49.8 7.15 0.4 95.5 -0.195 01/07/03 49.16 6.74 -1.1 66.4 0.260 DL 11/07/02 50.55 7.06 1.4 92.9 -0.137 12/10/02 49.91 6.87 -0.3 103.1 0.115 01/07/03 48.61 7.09 0 105.3 0.262 BC 07/02/02 49.95 6.98 -22.0 DO Punct 0.033 07/31/02 49.90 7.1 -0.5 105.2 0.03 09/11/02 50.61 6.96 -0.5 DO Punct -0.629 PG 07/10/02 59.61 6.99 -9.0 99.2 0.052 07/28/02 50.10 7.03 0.0 98.5 0.002 09/03/02 50.40 9.42 0.8 97.8 ** 10/02/02 50.05 7.02 -7.1 ** -0.074 LOGICAL CONSISTENCY REPORT: NACOMPLETENESS REPORT: Data collection period Monitoring at the Homer and Seldovia sites was continuous throughout 2002. Monitoring at the Bear Cove site began on June 18, 2002 at 11:30. Due to inclement weather conditions, the Bear Cove mooring was unable to be retrieved in the Fall and will be recovered in the Spring. The data presented runs through September 11, 2002 at 11:00, but upon retrieval of the currently deployed instrument, data will be available through approximately mid October 2002. Monitoring at the Port Graham site was conducted between June 21, 2002 at 10:00 and October 2, 2002 at 12:30. Deployment and retrieval dates and times for following months are listed below: Began Ended Sonde Comments Homer Site 11/27/01, 10:30 01/07/02, 16:30 ioco778 none 01/12/02, 13:00 02/20/02, 11:30 oico778 fish in guard 02/20/02, 12:00 03/11/02, 11:00 Zeus fish in guard 03/11/02, 11:30 03/12/02, 15:30 Cortez lg fish in guard 03/12/02, 16:00 04/16/02, 09:00 Zeus low turb (-9.8) 04/19/02, 11:30 05/27/02, 19:30 Zeus sea slug in guard 05/29/02, 15:30 07/02/02, 14:30 Cortez none 07/02/02, 15:00 07/30/02, 20:30 Zeus DO punct; low turb(89) 07/30/02, 21:00 08/28/02, 14:30 Neptune 08/28/02, 15:00 10/01/02, 14:00 Cortez Do recond, new turb 10/02/02, 05:00 11/15/02, 14:00 Zeus 15 hr interval set, not 15 min. 11/15/02, 14:00 11/20/02, 12:30 Cortez Homer Dolphin site 10/24/02, 10:00 11/07/02, 13:00 Neptune 11/19/02, 10:30 12/10/02, 10:00 Zeus 12/10/02, 10:30 01/07/03, 14:30 Neptune Seldovia Site 12/09/01, 13:30 01/11/02, 16:30 ico778 no data /modem dwn 01/11/02, 17:00 02/21/02, 09:30 **New** none 02/21/02, 10:00 03/13/02, 11:00 Neptune High SpCon(57.7)/ Doreco 03/13/02, 11:30 04/22/02, 09:30 Cortez none 04/22/02, 11:00 04/24/02, 12:00 Nautilus moved to CI 4/24 ; Turbhigh(136) 04/24/02, 14:00 05/28/02, 10:30 Cortez none 05/28/02, 11:30 06/18/02, 15:30 Zeus none 06/18/02, 16:00 07/04/02, 09:00 Neptune DO punct;Installed new turbprobe 07/04/02, 10:00 08/01/02, 14:00 Cortez DO recond; new turb probe 08/01/02, 14:30 09/04/02, 12:30 Zeus DO punct, Serpulids present 09/04/02, 13:00 10/09/02, 18:00 Neptune 10/09/02, 18:30 11/14/02, 14:00 Cortez DO punct; Turb wiper stop 11/14/02, 14:30 12/09/02, 10:30 Neptune 12/09/02, 11:00 01/07/03, 10:45 Cortez recondition DO, Turbidity wiper not functioning Port Graham Site 06/21/02, 10:00 07/10/02, 08:30 Calypso none 07/10/02, 09:30 07/28/02, 10:30 Neptune none 07/28/02, 18:00 09/03/02, 20:00 Calypso BAD pH 09/03/02, 20:30 10/02/02, 12:30 Kozloff Wiper NOT functioning Bear Cove Site 06/18/02, 11:30 07/02/02, 08:30 Kozloff none 07/03/02, 18:30 07/31/02, 14:30 Triton none 08/01/02, 20:00 09/11/02, 11:00 Triton DO punt Deleted Data Missing Data Missing data are denoted by a period in the data set. Data are missing due to equipment failure where no probes deployed, maintenance/calibration of equipment, elimination of obvious outliers, or elimination of data due to calibration (both pre and post) problems. For more details about missing data, contact the Research Coordinator at the Kachemak Bay Research Reserve. LINEAGE/PROCESS STEP: PROCESS DESCRIPTION: Additional Description: Entry verification For the Homer, Homer Dolphin, and Seldovia sites, the 15 minute data are uploaded to the PC from the YSI Model 6200 Data Acquisition System via modem at 60 minute intervals. For the Port Graham and Bear Cove sites, the data are uploaded to the PC from the YSI Model 6600 datasonde. The text files are initially viewed with Ecowatch software and graphs are produced to look for suspect data, as may result from probe failure. Notes are made of any unusual data, and sensors are reconditioned as necessary. The text data files are run through a Matlab routine created by Scott Pegau for processing. This routine is attached at the end of this report. For the Homer and Seldovia permanent sites, a separate sonde reading was taken, in addition to the reading stored in the DCP, for backup purposes in the event of power or modem failure. For periods when two sets of data are recorded the routine returns the averages of the two data sets. Due to changes in sampling during the year the routine is set to only output data every half-hour. Data that were recorded when the instruments were out of the water are deleted from the beginning and end of each record. These data are identified by unusual depth and salinity data (usually near zero). The routine outputs a data file listing the missing data points, fills all cells that do not contain data with periods, and finds and removes all data points that fall outside the range of what the data logger is designed to measure or are out of realistic ranges for Kachemak Bay. The routine then processes the data through several filters to flag and remove suspect data points that are greater than 4 standard deviations from data gathered in the 24 hour period surrounding the point. In addition, a graphing capability is included to produce single and multi-parameter graphs on a monthly or yearly basis. The routine outputs monthly files with column widths formatted to the correct number of decimal places based on YSI sensor specifications. Anomalous data are evaluated to determine whether to flag or delete the suspect values. Data are flagged if they fall outside the normal values seen at the site or outside the range of measurements and accuracy established for the sensors. Data outside the "normal" range of water quality for a particular site were investigated for validity based on weather data, field observations, QC checks, and instrument diagnostics. Data are deleted if anomalies are attributed to sensor malfunction or fouling of the sensors by aquatic organisms, debris, or sediment. Fouling of sensors is detected by comparing in-situ sensor readings with measurements. In addition, sensor readings that differ significantly (>10%) from calibration standards suggest that the sensor was fouled during deployment. After corrections are made to the text files and anomalies noted in the metadata report, the edited files are exported as tab delimited (*.txt) and sent to the CDMO. Monthly raw (*.dat) files are also sent to the CDMO for archival. Katie Gaut and Scott Pegau are responsible for these tasks. PROCESS DATE: 20060214


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 According to the Ocean and Coastal Resource Management Data Dissemination Policy for the NERRS System-wide Monitoring Program, NOAA/ERD retains the rights to analyze, synthesize and publish summaries of the NERRS System-wide Monitoring Program data. The PI retains the right to be fully credited for having collected and processed the data. Following academic courtesy standards, the PI and NERR site where data were collected will be contacted and fully acknowledged in any subsequent publications in which any part of the data are used. Manuscripts resulting from this NOAA/OCRM supported research that are produced for publication in open literature, including refereed scientific journals, will acknowledge that the research was conducted under an award from the Estuarine Reserves Division, Office of Oceanic and Atmospheric Administration. The data set enclosed within this package/transmission is only as good as the quality assurance and quality control procedures outlined by the enclosed metadata reporting statement. The user bears all responsibility for its subsequent use/misuse in any further analyses or comparisons. The Federal government does not assume liability to the Recipient or third persons, nor will the Federal government reimburse or indemnify the Recipient for its liability due to any losses resulting in any way from the use of this data. NERR water quality data and metadata can be obtained from the Research Coordinator at the individual NERR site, from the Data Manager at the Centralized Data Management Office (please see personnel directory under the general information link on the CDMO home page) and online at the CDMO home page http://cdmo.baruch.sc.edu. Data are available in text tab- delimited format, Microsoft Excel spreadsheet format and comma-delimited format.


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


Keywords
water quality
kachemak bay
monitoring
National Estuarine Research Reserves
Alaska
kenai peninsula
point pogibshi
fox river flats
anchor point
homer


Data Set Progress
COMPLETE


Data Center
North Inlet-Winyah Bay Reserve, Baruch Marine Field Laboratory, Belle W. Baruch Institute for Marine and Coastal Sciences, University of South Carolina    [Information]
Data Center URL: http://www.northinlet.sc.edu/

Data Center Personnel
Name: TAMMY D. SMALL
Phone: (843) 546-6219
Fax: (843) 546-1632
Email: tammy at belle.baruch.sc.edu
Contact Address:
University of South Carolina
Baruch Marine Field Laboratory
P.O. Box 1630
City: Georgetown
Province or State: South Carolina
Postal Code: 29442
Country: USA



Distribution
Distribution_Format: Ascii File, Formatted For Text Attributes, Declared Format (ASCII)NA
Fees: Data is available at no charge.


Personnel
JUDY HANER
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Contact Address:
Alaska Department of Fish and Game
City: Homer
Province or State: AK
Postal Code: 99603
Country: USA



Creation and Review Dates
DIF Creation Date: 2006-02-20
Last DIF Revision Date: 2016-01-27



Link to Web Site