Plum Island Ecosystems LTER Database

Acceptance and utilization of LTER data requires that:

(1) The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions.
(2) 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.
(3) A copy of any resultant publications should be sent to:

Principal Investigator
Ecosystems Center
Marine Biological Laboratory
7 MBL St.
Woods Hole, MA 02543

Dataset URLs:METADATA: HTML, Rich Text, XML(EML compliant)
DATA: Comma Delimited, Excel file with Metadata and data
Dataset ID:WAT-VA-Inputs.06
Dataset Title:Dissolved nutrient and particulate concentrations of freshwater inputs to the Plum Island estuarine system, taken approximately monthly.
Investigator 1: 
First Name:Wilfred
Last Name:Wollheim
Address line 1:Institute for the Study of Earth, Oceans, and Space
Address line 2:University of New Hampshire
Address line 3:Morse Hall, Room 452
City:Durham
State:NH
Zip Code:03824
Country:USA
Investigator 2: 
First Name:Charles
Last Name:Hopkinson
Address line 1:Georgia Sea Grant College Program
Address line 2:University of Georgia
Address line 3:229 Marine Sciences
City:Athens
State:GA
Zip Code:30602
Country:USA
Associate Investigators:Hap Garritt, Aaron Strong, Christina Maki, William Lee, Emily Gaines,Corey Lawrence, John Logan, Josh Goldstein, Greg Peterson, Nat Weston, Ishi Buffam, Rebecca Prosser, Colin Millar, Catherine Caurso, Samuel Kelsey
Keywords:PIE LTER, organic matter, inorganic nutrients, Ipswich River, Parker River, Egypt River, dam, loading, nutrient, Plum Island Estuary
Abstract:Multi-year data of water chemistry including nutrient concentrations for various forms of N, P, C, as well as suspended sediments, was determined from monthly grab samples taken at watershed inputs to the Plum Island Sound Estuary. Sampling sites were the Ipswich River (Sylvania Dam, Ipswich, MA), Parker River Dam (Central St, Newbury, MA), Egypt River (Ipswich, MA) Mill River (Newbury, MA), Muddy Run (Ipswich, MA), Little River (Newbury, MA). These nutrient concentrations are then used in conjunction with USGS discharge data (recorded at gages in the Parker River at Byfield, MA and the Ipswich River at Ipswich, MA) to calculate annual nutrient loading to the Plum Island Sound Estuary, coming over each dam. Annual yield is also calculated for both dams. Refer to file WAT-VA-Load for loading data.
Contact: Plum Island Ecosystems LTER Information Manager
The Ecosystems Center
Marine Biological Lab
7 MBL St
Woods Hole, MA 02543
Phone (508) 289 7485
Email: pie_im@mbl.edu
Online URL: http://ecosystems.mbl.edu/PIE/
DATA FILE INFORMATION:
Data File URL http://ecosystems.mbl.edu/PIE/data/WAT/data/WAT-VA-Inputs.csv
Data File Name WAT-VA-Inputs
Beginning Date 9/5/1993
End Date 12/3/2010
Number of Data Records 521
Other Files to Reference WAT-VA-Load
Availability Status Type 1
Quality Control Information
Maintenance Description Nutrient samples continue to be taken monthly. Monthly nutrient concentrations are updated annually in WAT-VA-Inputs. Every 2-3 years, WAT-VA-Load is updated with loading calculated from concentrations in WAT-VA-Inputs.
Log of Changes: 01) 27-Sep-2006 EML metadata created level ~3.5 includes attribute information
02) 13-Aug-2007 updated EML metadata to level 4-5
03) 21-Sep-2007 updated data set to Aug 2007 data.
04) 8-Jan-2010 updated data to Oct 2008 data
Version 05: January 25, 2012, updated data and metadata to Dec 2010. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 1/18/12 4:51 PM for QA/QC to EML 2.1.0
Version 06: February 1, 2012, updated data and metadata to Dec 2010. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 1/27/12 4:35 PM for QA/QC to EML 2.1.0
 
RESEARCH LOCATION: WAT-IP-IpswichDam WAT-PR-ParkerDam WAT-MI-MillRiver WAT-RO-EgyptRiver WAT-RO-MuddyRun WAT-PR-LittleRiver  
Geographic Description Ipswich River, Sylvania Dam, Ipswich, MA , input water nutrient sampling Parker River, Central St. Dam, Newbury, MA, input water nutrient sampling Mill River, Newbury, MA, input water nutrient sampling Egypt River, Rt 133, Ipswich, MA , input water nutrient sampling Muddy Run, Ipswich, MA, input water nutrient sampling Little River, Newbury, MA, input water nutrient sampling  
Location Bounding Box              
West Bounding Coordinate -71.22 -71.22 -71.22 -71.22 -71.22 -71.22  
East Bounding Coordinate -70.75 -70.75 -70.75 -70.75 -70.75 -70.75  
North Bounding Coordinate 42.83 42.83 42.83 42.83 42.83 42.83  
South Bounding Coordinate 42.5 42.5 42.5 42.5 42.5 42.5  
OR if single point location              
Latitude 42.677702 42.750141 42.739361 42.698161 42.702542 42.800399  
Longitude -70.837844 -70.929029 -70.900196 -70.868288 -70.853706 -70.883279  
Elevation              
               
               
 
TAXONOMIC COVERAGE:
Taxonomic Protocols
Organisms studied
 
Methods:Sample Collection:
Grab samples are collected monthly at the Parker and Ipswich dams, and Egypt River. Samples at Mill River and Muddy Run were taken in 1999. Water is filtered and/or partitioned for analysis for suspended solids, particulate organic nitrogen (PON), total dissolved nitrogen (TDN), ammonium (NH4), nitrate (NO3), dissolved inorganic nitrogen (DIN), dissolved organic nitrogen (DON), particulate phosphorus (PPO4), total dissolved phosphorus (TDP), phosphate (PO4), particulate organic carbon (POC), dissolved organic carbon (DOC). Occasionally chlorophyll and phaeopigments in addition to stable isotopes of dissolved and particulate forms of nitrogen and carbon are analyzed.
Analyses are conducted according to PIE-LTER protocols (http://ecosystems.mbl.edu/pie/data/method.htm).

Data Table

Variable Name Variable Description Units Measurement Scale Code Information Number Type DateTime Format Missing Value Code Missing Value Code Explanation
STATION Water sampling station   nominal         blank cell
DATE Date of water collection day   datetime     dd-mmm-yyyy   blank cell
TIME Time of water collection, 24 hour   datetime     hh:mm   blank cell
LAT Latitude in NAD 83 geographic coordinates (decimal degrees) degree interval   real     blank cell
LON Longitude in NAD 83 geographic coordinates (decimal degrees) degree interval   real     blank cell
TEMP temperature (Celsius) celsius ratio   real     blank cell
SAL salinity partPerThousand ratio   real     blank cell
NH4 Ammonium concentration as NH4-N micromolePerLiter ratio   real     blank cell
NO3 Nitrate concentration as NO3-N micromolePerLiter ratio   real     blank cell
PO4 Phosphate concentration as PO4-P micromolePerLiter ratio   real     blank cell
TDN Total nitrogen concentration as N micromolePerLiter ratio   real     blank cell
DON Dissolved organic nitrogen concentration as N micromolePerLiter ratio   real     blank cell
TDP Total dissolved phosphorus concentration as P micromolePerLiter ratio   real     blank cell
DOP Dissolved organic phosphorus concentration as N micromolePerLiter ratio   real     blank cell
DOC Dissolve organic carbon concentration as C micromolePerLiter ratio   real     blank cell
SS Suspended sediment concentration milligramPerLiter ratio   real     blank cell
PP Particulate phosphorus concentration as P micromolePerLiter ratio   real     blank cell
POC Particulate organic carbon concentration as C micromolePerLiter ratio   real     blank cell
PON Particulate organic nitrogen concentration as N micromolePerLiter ratio   real     blank cell
PO13C d13C (per mil) vs PDB of the particulate organic carbon partPerThousand ratio   real     blank cell
PO15N d15N (per mil) vs air of the particulate organic nitrogen partPerThousand ratio   real     blank cell
CHLA Chlorophyll a concentration microgramPerLiter ratio   real     blank cell
PHAEO Phaeopigment concentration microgramPerLiter ratio   real     blank cell
15NH4 d15N (per mil) vs air of the dissolved ammonium partPerThousand ratio   real     blank cell
15NO3 d15N (per mil) vs air of the dissolved nitrate partPerThousand ratio   real     blank cell
15TDN d15N (per mil) vs air of the total dissolved nitrogen partPerThousand ratio   real     blank cell
15DON d15N (per mil) vs air of the of the dissolved organic partPerThousand ratio   real     blank cell
COMMENTS Additional information pertaining to the sample   nominal 1= TDP less than PO4 TDP set equal to PO4       blank cell