Chesapeake Bay Maryland NERR Meteorological Metadata July-December 2003 Latest Update: December 14, 2004
Entry ID:
CDMO_cbmmet07-12.03m
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Summary
Abstract:
Meteorological monitoring is conducted at 26 National Estuarine Research Reserves (NERR)
from at least one location within or adjacent to the reserve. Data are collected every 5 seconds
and averages are produced from this data at quarterly (15 minutes), hourly (60 minutes) and
daily (1440 minutes) intervals. The parameters collected within these intervals are: averages,
maximums and minimums of air temperature, relative humidity, barometric pressure, wind speed,
wind direction, precipitation and photosynthetically active solar radiation.
Purpose:
Research objectives The principal objectives are to record meteorological information for the Chesapeake Bay National Estuarine Research Reserve in Maryland in support of the National Estuarine Research Reserve's (NERR) System Wide Monitoring Program (SWMP). This information is available for the following: 1) to track and record atmospheric and ... meteorological conditions
useful to help understand and explain additional data collected concurrently 2) to create a
database capable of detecting long-term changes in weather patterns 3) to record and identify
the impact of storms, hurricanes, heavy rain and other episodic weather events capable of
influencing other environmental conditions such as water quality (as monitored by the SWMP
effort) and to collect ancillary data in support of other research efforts.
SUPPLEMENTAL INFORMATION:
Associated researchers and projects Data are most commonly used in support of the
System Wide Monitoring Program (SWMP) and to help explain the relationships between water
quality and meteorological conditions. Three of the four SWMP water quality sites are located at
the Jug Bay component of the Reserve and therefore the collection of meteorological data
provides additional information helpful for analyzing and detecting trends in water quality
data. For more information about the SWMP water quality monitoring effort, refer to the
Chesapeake Bay Maryland Reserve water quality data on the CDMO website http://cdmo.baruch.sc.edu
Additional research and data that is available at the Jug Bay component of the Reserve is
sediment erosion data and water quality data collected by Jug Bay Wetlands Sanctuary staff.
Various sediment erosion tables (SET) are installed and monitored at the site annually to track
changes in sedimentation levels. Dr. Marta Ceroni is one of the lead PI's on the
sediment effort while Chris Swarth is the lead PI for supplemental water quality monitoring
efforts. Additional information, to include their contact information, can be obtained through
the Research Coordinator. Efforts are underway to install another weather station at the Otter
Point Creek component of the Reserve as well as install vented tide gauges at both the Otter
Point Creek and Jug Bay components. Additionally, efforts to telemeter the data real-time from
both weather stations and respective water quality stations are projected for 2004. Other
remarks/notes Additional weather data for the Jug Bay component of the Reserve is available.
Staff from the Jug Bay Wetlands Sanctuary collected the data independently. Interested persons
should contact the Research Coordinator listed in section 1 for the appropriate contact
information. It should also be noted that in 2003 Maryland logged one of the wettest years on
record in this region. Data collected may not be representative of a
normal year. Additionally, the entire Chesapeake Bay region was strongly
impacted by Hurricane Isabel, which came onshore in the Chesapeake Bay Region on September 17,
2003. The storm brought high winds, strong rainfall, and especially high tidal surges and was
followed by an additionally large rain event on September 20, 2003, which exacerbated
conditions. These two events, coupled with an unusually wet year, should be noted. LiCor: Prior
to the installation of the new NERR_4.CSI program, all values less than 0 were altered in the
raw data to read 0. These values may indicate an incorrect multiplier, calibration problems, or
a sensor malfunction. Because these values are changed in the raw data, we cannot confirm that
they are all valid data points. Relative Humidity: Prior to the installation of the new
NERR_4.CSI program, all values over 100% were altered in the raw data to read 100%. These values
may indicate super saturated air, calibration problems, or a sensor malfunction. Because these
values are changed in the raw data, we cannot confirm that they are all valid data points. EQWin
Rainfall Data: Daily Precip Totals (mm) 7/24/2003 1.3 7/25/2003 0.5 7/29/2003 25.9 7/30/2003 0.5
7/31/2003 0.5 Monthly Total (mm) 28.7 8/2/2003 6.6 8/3/2003 0.3 8/4/2003 8.9 8/6/2003 14.5
8/7/2003 0.3 8/8/2003 0.5 8/10/2003 13.5 8/11/2003 0.3 8/12/2003 11.7 8/13/2003 0.3 8/17/2003
23.6 8/18/2003 5.1 8/23/2003 0.3 8/27/2003 22.4 8/28/2003 13 8/29/2003 0.3 8/30/2003 8.4
8/31/2003 6.6 Monthly Total (mm) 136.6 9/2/2003 6.6 9/3/2003 2.8 9/4/2003 13.5 9/5/2003 5.1
9/8/2003 0.3 9/13/2003 20.8 9/14/2003 8.9 9/19/2003 38.6 9/20/2003 1 9/23/2003 2.3 9/24/2003
40.1 9/26/2003 0.3 9/29/2003 0.8 Monthly Total (mm) 141.1 10/1/2003 0.3 10/10/2003 0.3
10/11/2003 0.3 10/12/2003 0.3 10/15/2003 30.5 10/16/2003 0.3 10/23/2003 0.8 10/27/2003 3.3
10/31/2003 0.3 Monthly Total (mm) 36.4 11/6/2003 11.9 11/7/2003 15 11/8/2003 2 11/13/2003 16.8
11/17/2003 1 11/19/2003 0.3 11/20/2003 27.9 11/25/2003 6.6 11/29/2003 13 Monthly Total (mm) 94.5
12/6/2003 23.1 12/7/2003 0.3 12/9/2003 3 12/11/2003 7.9 12/12/2003 23.9 12/15/2003 25.4
12/18/2003 22.1 12/24/2003 0.5 12/25/2003 21.8 12/30/2003 0.3 12/31/2003 0.8 Monthly Total (mm)
129.1 Annual Total (mm) 566.4
CURRENTNESS REFERENCE:
Observed
SPATIAL DATA ORGANIZATION INFORMATION:
Indirect Spatial Reference: Site location and character The Chesapeake Bay National
Estuarine Research Reserve in Maryland consists of three components; Otter Point Creek on the
Bush River along the upper western shore of the Chesapeake Bay, Jug Bay along the Patuxent River
in the middle Bay and Monie Bay on the lower eastern shore of the Chesapeake Bay. The weather
station is located at the Jug Bay Component of the Reserve, specifically at the Jug Bay Wetlands
Sanctuary. The station is situated on the north end of the Jug Bay marsh, along a tidal creek
the feeds the Patuxent River. The weather station is situated at 38-46-50.6N and 76-42-29.1W.
The station is housed in a small outdoor building situated at the end of a boardwalk in the Jug
Bay marsh. The boardwalk extends about 50m from an elevated old railroad track out into the
marsh. The CR10x is in a weather proof box situated on the inside of the building, while the
probes are fixed to the roof of the building so as not to be impacted by the structure. The
probes are approximately 5m above mean water and are not shaded. Wind speed may be slightly
altered at the site due to proximity of the old railroad bridge that splits the marsh. The old
railroad bridge is on an elevated berm that sits about 2-2.5m above mean water. The berm runs
east to west and the boardwalk that houses the weather station runs perpendicular to the berm in
the north/south direction. From 1995-2002, the weather station was also the site of a YSI
datalogger that recorded water quality at the site. Due to problems with the shallow nature of
the site, the water quality component was moved in 2003, approximately 500m westward, from the
tidal creek to the mainstem of the Patuxent River. An additional weather station is targeted for
the Otter Point Creek component of the reserve in 2004. 
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: 39.45
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S: 38.19
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E: -75.79
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W: -76.71
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Data Set Citation
Dataset Originator/Creator:
Julie Bortz, John Zimmerelli, Chris Trumbauer
Dataset Title:
Chesapeake Bay Maryland NERR Meteorological Metadata July-December 2003 Latest
Update: December 14, 2004
Dataset Release Date:
2006-02-22
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:
2003-07-01
Stop Date:
2003-12-31
Quality
ATTRIBUTE ACCURACY REPORT: Anomalous/Suspect Data It is believed that all sensors were
functioning properly from July 22, 2003 to December 31, 2003 and that there is no suspect or
anomalous data. LOGICAL CONSISTENCY REPORT: NACOMPLETENESS REPORT: Data collection period Data
collection for this period began on January 1, 2003 at ... 00:00 and continued throughout the year,
ending on 23:45 December 31, 2003. Data collected from January 1, 2003 through 13:45 on July 22,
2003 was collected, but is not reported due to concerns with the calibration of the probes and
problems with the time coding. This data should be treated as suspect; however, the data can be
made available. Any person interested in this data should contact Julie Bortz, the Research
Coordinator for the Reserve. On July 22, 2003, all probes, except the tipping rain gauge, were
replaced with calibrated new probes. On October 29, 2003 the CR10x program was upgraded to
NERR_4.CSI to affix a time/date stamp to the data and output the data in three arrays rather
than twelve. Deleted Data New sensors installed system powered down and restarted at 14:30 on
7/22/2003, hence hourly averages and daily averages off. cbmjbmet 60 07/22/2003 203 15:00
cbmjbmet 144 07/23/2003 204 00:00 New program uploaded to CR10X, deleted 15min averages (mins.
and maxs.) at 15:30, and hourly and daily averages. cbmjbmet 15 10/29/2003 302 15:30 cbmjbmet 60
10/29/2003 302 16:00 cbmjbmet 144 10/30/2003 303 00:00 Missing Data Data from January 1, 2003 to
July 22, 2003 are missing due to equipment problems associated with the maintenance and
calibration of probes. Data collected during this period is available, but should be considered
suspect. If additional information on missing data are needed, or missing data are requested,
please contact the Research Coordinator at the reserve submitting the data. Data from October
27, 2003 at 13:15 to October 29, 2003 at 15:30 are missing due to user error. Last set of data
not downloaded prior to the upload of new CR10X program and data was lost. LINEAGE/PROCESS STEP:
PROCESS DESCRIPTION: Additional Description: Entry verification Data input procedures: The
meteorological information is sampled every 5 seconds from each instrument on the weather
station and stored on a Campbell Scientific CR10X data logger. Data are output to a file in
three arrays: array 15 stores 15 minute average, max and min data; array 60 stores hourly
average, max and min data; and array 144 stores daily average, max and min data. The CDMO Data
Logger Program (NERR_4.CSI) was loaded into the CR10X and controls the sensors. The CR10X then
interfaces with the PC208W software supplied by Campbell Scientific. Data are uploaded from the
CR10X data logger or storage module to a Personal Computer (IBM compatible). Files are exported
from PC208W or LoggerNet in a comma-delimited format (.DAT) and opened in Microsoft Excel for
pre-processing with the EQWin format macro that was developed by the CDMO to reformat the header
columns, insert station codes, insert a date column (mm/dd/yyyy), correct the time column format
and reformat the data to the appropriate number of decimal places. The Advance Date Macro
developed by the CDMO was also run on the data to advance the 00:00 hour to the next day. The
pre-processed file is then ready to be copied into the EQWin weather.eqi file where the data are
QA/QC checked and archived in a database. EQWin queries, reports and graphs are used to discover
data set outliers (values which fall outside the range that the instrument is designed to
measure) and large changes in the data. EQWin is also used to generate statistics, view graphs,
create customized queries and reports of the data, cross query the water, weather and nutrient
data and finally export the data to the CDMO. Pre-processing, data verification, and data upload
to the CDMO server war performed by John Zimmerelli. Data are retrieved from the CR10X using two
methods. First, the data from the CR10X is radio-telemetered to a PC at the Jug Bay component,
specifically the Jug Bay Wetlands Sanctuary. Managers at the Sanctuary routinely download data
from the weather station and store it on the hard drive of the office computer. Secondly, NERR
technicians perform manual monthly downloads of the data directly from the CR10X using a laptop
and PC208W software. This data are saved on the laptop as a raw file. This data are then
transferred to a disk at the field office for archiving. Data are both archived on site at the
Jug Bay Wetlands Sanctuary as well as on the Maryland Department of Natural Resources network,
and a disk. The Centralized Data Management Office converted all SWMP weather data collected
with CR10X program versions prior to version 4.0 which was distributed in October 2003. This was
necessary in order to merge the old data format (12 array output) with the new data format found
in version 4.0 (3 array output). The new format produces averages, maximums and minimums every
fifteen minutes (array 15), every hour (array 60) and every day (array 144) for any sensors
hooked up to the CR10X. Specifically, the 150 and 151 fifteen minute data were converted to the
new 15 array; the hourly 101, 102, 105 and 106 data were converted to the new 60 array; and the
daily 241, 242, 243, 244, 245 and 246 data were converted to the new 144 array. With the new
format, the use of 55555's to code for deleted data and 11111's to code for missing data has
been abandoned. Hence, all 55555's or 11111's contained in the SWMP weather data collected prior
to Version 4.0 of the CR10X program were removed and left blank. Data collection schedule: i)
15-minute data are collected instantaneously for Air Temperature (C), Relative Humidity (%),
Barometric Pressure (mb), Wind Speed (m/s), and Wind Direction (degrees). 15-minute
Precipitation (mm) and PAR (mmol/m^2) data are totaled from 5-second readings, prior to
NERR_4.CSI ii) 15-minute average, maximum and minimum data are averages of 5-second readings for
Air Temperature (oC), Relative Humidity (%), Barometric Pressure (mb) and Wind Speed (m/s). iii)
Hourly average, maximum, and minimum data are averages of 5-second readings for Air Temperature
(oC), Relative Humidity (%), Barometric Pressure (mb), Wind Speed (m/s), and Wind Direction
(degrees). Hourly totals for PAR (mmol/m^2) and Precipitation (mm) are totals of 15-minute
readings. iv) Daily average, maximum and minimum data are averages of 5-second readings for Air
Temperature (oC), Relative Humidity (%), Barometric Pressure (mb), Wind Speed (m/s), and Wind
Direction (degrees). Daily totals for PAR (mmol/m^2) and Precipitation (mm) are totals of
15-minute readings. Data were stored on a Campbell Scientific storage module (SM192 or SM4M),
which was retrieved monthly. The data were downloaded and pre-processed as described in Section
2. QA/QC of the data was conducted using either the WDMP or EQWin. WDMP error reports and EQWin
queries were based on the following anomalous data criteria: Error/anomalous data criteria: Air
Temp: - 15 min sample not greater than max for the day - 15 min sample not less than the min for
the day - 15 min sample not greater than 3.0 C from the previous 15 minutes (WDMP only) - Max
and min temp recorded for the day (WDMP only) - 1-hour average not greater than 10% above the
greatest 15 min sample recorded in the hour (WDMP only) -Sample not greater than 50 C or less
than 30 C (EQWin only) Relative Humidity: -Not changed by more than 25% from the
previous 15 minutes (WDMP only) -Max and min humidity recorded for the day (WDMP only) -1-hour
average not greater than 10% above the greatest 15 min sample recorded in the hour (WDMP only)
-Sample not greater than 100% or less than 0% (EQWin only) Pressure: - Pressure not greater than
1040 mb or less than 980 mb (WDMP only) - Pressure changes greater than 5 mb per hour (WDMP
only) - Maximum and minimum values recorded for the day (WDMP only) -1-hour average not greater
than 10% above the greatest 15 min sample recorded in the hour (WDMP only) -Sample not greater
than 1060 mb or less than 900 mb (EQWin only) Wind Speed: - Wind speed not greater than 65 m/s
or less than 0.5 m/s (WDMP only) -Wind speed not greater than 30 m/s (EQWin only) -Wind speed
not less than 0.5 m/s for 12 consecutive hours (EQWin only) Wind Direction: - Wind direction not
greater than 360 degrees or less than 0 degrees Rainfall: - Precipitation not greater than 5 mm
in 15 min - No precipitation for the month (WDMP only) Photosynthetically Active Radiation
(PAR): -Sample not greater than 5000 mmol/m^2 or less than 0.5 mmol/m^2 Time: -
15-minute interval recorded For all data: - No duplicate data PROCESS DATE: 20060222
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
LIABILITY: Distribution NOAA/ERD retains the right 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 the 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 Ocean and Coastal Resource Management, National
Ocean Service, National 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 weather data and metadata can be obtained from the
Research Coordinator at the individual NERR site (please see Section 1 Principal investigators
and contact persons), 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 format and Access data
tables.
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:
Department of Natural Resources
City:
Annapolis
Province or State:
MD
Postal Code:
21401
Country:
USA
Creation and Review Dates
DIF Creation Date:
2006-02-22
Last DIF Revision Date:
2009-06-02
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