Elkhorn Slough (ELK) NERR Water Quality Metadata January - December, 2003 Last updated December 16, 2004Entry ID: CDMO_elkwq01-12.03m
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 Measurements are taken every 30 minutes over a three to four week period at four sites in Elkhorn Slough. One site, South Marsh (SM), is in a relatively unimpacted side channel of the slough and the second, Azevedo Pond (AP), is in a pond that receives fertilizer and pesticide runoff from an adjoining strawberry field. The third site, North Marsh (NM), was added in April 1999 ... and is located in an area where there is both agricultural and non-agricultural runoff. The fourth site, Vierra Mouth, is located at the mouth of the slough and is used to identify oceanic influence. This site was added March 14 2001 at 13:00. The purpose of this research is to identify the base parameters for Elkhorn Slough by using South Marsh as the control site while monitoring the two impacted sites (Azevedo Pond and North Marsh) for possible future problems.
Associated researchers and projects There are many projects associated with Elkhorn Slough. Please contact the reserve for information on other projects. Other Remarks/Notes Though measurements are not abnormal, dissolved oxygen post deployment calibration for AP 6/16 11:00 through 7/14 10:30 is extremely low and the probe was encrusted with mud and invertebrates.
SPATIAL DATA ORGANIZATION INFORMATION:
Indirect Spatial Reference: Site location and character Elkhorn Slough is located on the West Coast of the United States in Central California. It connects with the Pacific Ocean in central Monterey Bay near Moss Landing, California. There are four sampling sites. AP (Azevedo Pond)(36° 50'44.64"N, 121° 45'13.24"W) is in a pond that receives fertilizer and pesticide runoff from a strawberry field in year-round production. The YSI is located about 10m from a culvert connecting the pond to the slough. Tide ranges from 0 to 1.4 meters and salinity ranges from 1.3 ppt during heavy runoff to 41.5 ppt during strong evaporation. The sonde is located approximately 10 cm off the bottom, which is composed of silty mud. Depth for this site is approximately 1 meter. NM (North Marsh)(36° 50'04.75"N, 121° 44'18. 33"W) is located in between South Marsh and Azevedo Pond. This site is impacted by both agricultural and urban runoff. With a mean depth of 1 meter, the tide ranges from approximately 0.05 to 0.87 meters. Salinity ranges between 20 and 40 parts per thousand and is affected by freshwater runoff from agriculture and upland runoff. The sonde is approximately 30 cm off the bottom, which is composed of silty mud. SM (South Marsh)(36° 49'05.00"N, 121° 44'21.83"W) is located approximately 3 km south of NM and is surrounded by mostly reserve land. This site receives runoff mostly from uplands with some runoff coming from cattle ranches. This site receives the least amount of pollution. The tidal range is from 0 to 3 meters and the salinity range is from 27 to 34 parts per thousand. The sonde is approximately 30 cm off the bottom, which is composed of slightly compacted silty mud. Depth for this site is approximately 2 meters. The fourth site, VM (Vierra Mouth)(36° 48'39.95"N, 121° 44'45.40"W), is located at the mouth of the slough and is used to identify oceanic influence. With a mean depth of 2.5 meters, the tidal range is from 0.6 to 3.7 meters and salinity ranges from 26 to 36 parts per thousand. The sonde is located approximately 30 cm off the bottom, which is composed of compacted mud and sand due to strong tidal currents. This site receives drainage from the entire watershed since it is at the mouth of the slough. There are several auto wreaking yards located approximately 2 km east of this site.
Data Set Citation
Dataset Originator/Creator: Kerstin Wasson, John C. Haskins
Dataset Title: Elkhorn Slough (ELK) NERR Water Quality Metadata January - December, 2003 Last updated December 16, 2004
Dataset Release Date: 2006-02-09
Data Presentation Form: Unknown
Other Citation Details: NAOnline Resource: http://cdmo.baruch.sc.edu/
This description is a member of a collection. The collection is described in
Start Date: 2003-01-01Stop Date: 2003-12-31
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CHLOROPHYLL
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > PHOSPHOROUS COMPOUNDS
OCEANS > COASTAL PROCESSES > ESTUARIES
OCEANS > OCEAN CHEMISTRY > NITRATE
OCEANS > OCEAN CHEMISTRY > NITRITE
OCEANS > OCEAN CHEMISTRY > PHOSPHATE
BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY
OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
Quality See http://cdmo.baruch.sc.edu/data/qaqc.cfm
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 NOAA/ERD retains the right 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 and 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 water quality data and metadata can be obtained fro the Research Coordinator at the individual NERR site (please see Principle 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 tab-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
Data Set Progress
Distribution Format: Ascii File, Formatted For Text Attributes, Declared Format (ASCII)NA
Fees: Data is available at no charge.
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
1700 Elkhorn Road
Province or State: CA
Postal Code: 95076
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2006-02-09
Last DIF Revision Date: 2017-02-21