Acceptance and utilization of PIE-LTER data requires that:
· The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions.
· The Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications.
· A copy of any resultant publications should be sent to:
(Principal Investigator)
Ecosystems Center;
Marine Biological Laboratory
Woods Hole, MA 02543
PLUM ISLAND ECOSYSTEM LTER DATABASE
DATA FILE: WAT-VA-INPUTS.xls; WAT-VA-INPUTS.txt
DOCUMENTATION FILE: WAT-VA-INPUTS.doc
YEAR: 1993-2003
PI: Charles Hopkinson
OTHERS: Hap Garritt, Greg Peterson, Josh Goldstein, John Logan, Jeff Evans, Emily Gaines
BRIEF DESCRIPTION OF DATA FILE: Dissolved nutrient and particulate concentrations of freshwater inputs to the Plum Island estuarine system, taken approximately monthly.
KEYWORDS: nutrient, loading, ammonium, nitrate, phosphate, dissolved, organic, nitrogen, phosphorus, carbon, suspended, solids, isotope, particulate, chlorophyll, phaeopigment, organic
SITE TYPE: Watershed
RESEARCH LOCATION:
|
Site |
LAT |
LON |
|
WAT-IP-Ipswich Dam |
42.6777 |
70.83784 |
|
WAT-MI-Mill River |
42.73936 |
70.9002 |
|
WAT-PR-Parker Dam |
42.75013 |
70.92901 |
|
WAT-RO-Egypt River |
42.69816 |
70.86829 |
|
WAT-RO-Muddy Run |
42.70254 |
70.85371 |
EXPERIMENTAL DESIGN AND METHODS:
Samples were taken approximately once per month, year-round. Temperature was measured using a Hydrolab H2O probe or a field thermometer. Approximately 10 liters of water were collected in an HDPE carboy. The water was then filtered through a GFF filter within 12 hours of collection, and water samples and filters were preserved for later analysis of dissolved materials. For details on analytical procedures, see ANALYTICAL METHODS.
NOTES AND COMMENTS:
VARIABLE DESCRIPTION:
STATION = station name
DATE = date (dd-mmm-yyyy)
TIME = time (hh-min) 24 hour clock
STATE X = x coordinates (meters) in MA state plane NAD 83
STATE Y = y coordinates (meters) in MA state plane NAD 83
LAT = Latitude in NAD 83 geographic coordinates (decimal degrees)
LON = Longitude in NAD 83 geographic coordinates (decimal degrees)
TEMP = temperature (Celsius)
SAL = salinity (ppt)
NH4 = ammonium (µM)
NO3 = nitrate + nitrite (µM)
PO4 = soluble reactive phosphorus (µM)
TDN = total dissolved nitrogen (µM)
DON = dissolved organic nitrogen (µM)
TDP = total dissolved phosphorus (µM)
DOP = dissolved organic phosphorus (µM)
DOC = dissolved organic carbon (µM)
SS = suspended solids (mg L-1)
PP = particulate phosphorus (µM)
POC = particulate organic carbon (µM)
PON = particulate organic nitrogen (µM)
PO13C = d13C (per mil) of the particulate organic carbon
PO15N = d15N (per mil) of the particulate organic nitrogen
CHLA = chlorophyll a (µg L-1)
PHAEO = pheopigments (µg L-1)
15NH4 = d15N (per mil) of the dissolved ammonium
15NO3 = d15N (per mil) of the dissolved nitrate
15TDN = d15N (per mil) of the total dissolved nitrogen
15DON = d15N (per mil) of the of the dissolved organic nitrogen
COMMENTS = Additional information pertaining to the sample; “1” = Designates that the measured TDP concentration was lower than the PO4 concentration, and TDP was set to equal PO4.
CALCULATIONS:
FOR MORE INFORMATION, CONTACT:
Hap Garritt
OTHER DATA FILES TO REFERENCE:
REFERENCE CITATIONS:
DATA AVAILABILITY STATUS:
Type 2
ARCHIVE INFORMATION:
Date of entry: July 18, 2000
Data entered by: N. Weston
Updated: January 16, 2004
Updated by: Emily Gaines
Comments: