Data Package Metadata View Summary

PIE LTER nutrient samples collected by Sigma Autosampler between 2001 and 2017 in three headwater sites of contrasting land use, and at the Parker and Ipswich River Dams as they enter into the Plum Island Sound estuary, Massachusetts.

General Information

Data Package:
Local Identifier:	knb-lter-pie.106.9
Title:	PIE LTER nutrient samples collected by Sigma Autosampler between 2001 and 2017 in three headwater sites of contrasting land use, and at the Parker and Ipswich River Dams as they enter into the Plum Island Sound estuary, Massachusetts.
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	Total organic nitrogen, total organic phosphorus, and nitrate concentrations collected frequently by Sigma autosampler (or volunteers in winter) from 5 sites. Sites include three headwater sites of contrasting land use (CC= Forest, SB = suburban, CS = wetland) and at the mouth of the Ipswich and Parker Rivers where they flow into the estuary.
Purpose:
Short Name:	WAT-VA-SigmaNutrients
Publication Date:	2021-07-27
Language:	English

Time Period

Begin:

2001-10-25

End:

2019-12-09

People and Organizations
Contact:	Plum Island Ecosystems LTER
Creator:	Wollheim, Wilfred
Organization:	Plum Island Ecosystems LTER
Associate:	Lawrence, Corey
Associate:	Evans, Jeff
Associate:	Pellerin, Brian
Associate:	Garritt, Hap
Associate:	Gaines, Emily
Associate:	Thouin, Joe
Associate:	Lee, William
Associate:	Strong, Aaron
Associate:	Maki, Christina
Associate:	Morse, Nat
Associate:	Hope, Amanda
Associate:	Prosser, Rebecca
Associate:	Caruso, Catherine
Associate:	Whitney, Chris

Data Entities
Data Table Name:	WAT-VA-SigmaNutrients_csv
Description:	Nutrient samples collected by Sigma Autosampler between 2001 and 2015 in three headwater sites of contrasting land use, and at the Parker and Ipswich River Dams as they enter into the estuaries.
Other Name:	WAT-VA-SigmaNutrients_xls
Description:	Excel metadata and data file associated with the csv data source file. Excel file after downloading is to be used for adding/editing new metadata and data.

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-pie/106/9/88af06b0a637cb377f7768bf66098956
Name:	WAT-VA-SigmaNutrients_csv
Description:	Nutrient samples collected by Sigma Autosampler between 2001 and 2015 in three headwater sites of contrasting land use, and at the Parker and Ipswich River Dams as they enter into the estuaries.
Number of Records:	6443
Number of Columns:	10

Table Structure

Object Name:

WAT-VA-SigmaNutrients.csv

Size:

488377

Authentication:

980a4f4e793e7bd42a4bfbf5fda36e0c Calculated By MD5

Authentication:

34c01d73c240f4364c3cc9a537542a02869825ad Calculated By SHA-1

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

Table Column Descriptions

Site

Year

Date 1

Date 2

SampleType

NO3

TOC

Notes

Column Name:

Site

Year

Date 1

Date 2

SampleType

NO3

TOC

Notes

Definition:

Field Collection Site

Year of collection

Start date of sample collection

End date of sample collection

A description of the type of sample routine used with the Sigma

Total Phosphorus as P. Digested to Phosphate-P measured with spectrophotometer or Lachat auto-analyzer

Total Nitrogen as N. Digested to Nitrate + Nitrite and measured with a Lachat auto-analyzer or Shimadzu TN/TOC analyser.

Nitrate + Nitrite-N as measured with a Lachat auto-analyzer

Total organic carbon as C. Total organic carbon measured with Shimadzu TN/TOC analyzer.

Comments relevant to quality of the data.

Storage Type:

string

date

string

Measurement Type:

nominal

dateTime

nominal

ratio

nominal

Measurement Values Domain:

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	CC
Definition	Cart Creek (forest)
Source

Code Definition

Code	CS
Definition	Cedar Swamp (wetland)
Source

Code Definition

Code	SB
Definition	Saw Mill Br (urban)
Source

Code Definition

Code	ID
Definition	Ipswich R. Dam
Source

Code Definition

Code	PD
Definition	Parker R. Dam
Source

Format	YYYY
Precision

Format	YYYY-MM-DD
Precision

Format	YYYY-MM-DD
Precision

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	Daily
Definition	one days sample per bottle collected by the autosampler
Source

Code Definition

Code	TwoDayComposite
Definition	two days sample per bottle collected by the autosampler
Source

Code Definition

Code	Volunteer
Definition	one days sample collected by volunteer
Source

Code Definition

Code	Composite-timeweighted_*hrs
Definition	samples are collected every * hours and pumped into a single carboy
Source

Code Definition

Code	Composite-flowweighted_*cms
Definition	samplers are collected after every * cubic meters has passed by the sigma
Source

Unit	micromolePerLiter
Type	real

Unit	micromolePerLiter
Type	real

Unit	micromolePerLiter
Type	real

Unit	micromolePerLiter
Type	real

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	5
Definition	Samples were run on Shimadzu and were corrected for poor machine performance so these values are as accurate as possible but are not perfect
Source

Code Definition

Code	6
Definition	Samples were run on Shimadzu (see Gaines 2/28/06 processed TN file) and were corrected for poor machine performance so these values are as accurate as possible but are not perfect
Source

Code Definition

Code	7
Definition	Samples were collected but have not been analyzed yet
Source

Code Definition

Code	8
Definition	Samples will be analyzed for TN/TOC
Source

Missing Value Code:

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Code	NA
Expl	missing

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Non-Categorized Data Resource

Name:

WAT-VA-SigmaNutrients_xls

Entity Type:

document

Description:

Excel metadata and data file associated with the csv data source file. Excel file after downloading is to be used for adding/editing new metadata and data.

Physical Structure Description:

Object Name:

WAT-VA-SigmaNutrients.xls

Size:

1137664

Authentication:

f5449acd578ceb5a6f95347b17579aae Calculated By MD5

Authentication:

73bbebd3d4d499f9a8d0b217400bfa9c62341cc9 Calculated By SHA-1

Externally Defined Format:

Format Name:

application/vnd.ms-excel

Data:

https://pasta-s.lternet.edu/package/data/eml/knb-lter-pie/106/9/99f63fe8c24ed4ed07673b463f1aa77a

Data Package Usage Rights

Data Policies

PIE LTER Data Use Agreement

This work is licensed under the Creative Commons Attribution 4.0 International License, CC BY - Attribution. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. Permission to use this dataset is granted to the Data User free of charge subject to the following terms:

1) Citation. It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User will properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator, Year of Data Publication, Title of Dataset, Publisher, Dataset identifier.
For example: Giblin, Anne; Hopkinson, Charles (2000): Rates of benthic metabolism and nutrient cycling in the Parker and Rowley Rivers of the Plum Island Sound estuary. Plum Island Ecosystems LTER, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/17fa8b4fef50c7b85cac3d61482a7cb6
2) Acknowledgement. The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. The Data User should contact the Data Set Contact to ensure the appropriate Granting Programs are acknowledged.
For example: Data sets were provided by the Plum Island Ecosystems LTER. This material is based upon funding supported by the National Science Foundation under Grants #OCE-9726921, OCE-0423565, OCE-1058747, OCE-1238212, OCE-1637630.
3) Notification. The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed. The Data User will provide the data contact with two reprints of any publications resulting from use of the Data Set and will provide copies, or on-line access to, any derived digital products. Notification will include an explanation of how the Data Set was used to produce the derived work.
4) Collaboration. The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.
5) Disclaimer. While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available "as is". The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

Keywords

By Thesaurus:
Core Areas	Organic Matter, Inorganic Nutrients
LTER Controlled Vocabulary	dissolved, rivers, inorganic nutrients, nutrients, carbon, nitrogen, nitrate, nitrate, phosphorus, phosphate, organic, PIE LTER, Plum Island Ecosystems

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

Samples were collected with a Sigma auto-sampler on a daily, bi-daily, flow-weighted, or time weighted frequency from each site.Samples were preserved with sulfuric acid, except for those collected by volunteer in winter which were not acidified but frozen within 24 hours. Analysed for nitrate, TP, TN, and TOC.
Sigma installation:  Sigma autosampler is placed at a convenient location on the bank of each site.  Sigma is visited every three weeks to replace/check bottles and batteries.  Intake is fastened to reebar suspended above the sediments to prevent intake of particulates from the stream bottom.  The bottles contain sulfuric acid to preserve nutrients in their ambient form. Bottles sit out for up to 6 weeks (but most often &lt; 3 weeks) within the sampler before being filled and collected.   Occasionally spiders or other bugs are found in the samples. See notes.
Daily samples:  Sigma pulls a 1L sample the same time each day (usually between 9am to 5pm).
TwoDayComposite samples: Sigma pulls a 500ml sample and places it in the same bottle over two consecutive days. (usually grabbed between 9am and 5pm)
Volunteer:  A grab sample collected by a volunteer during winter period when sigma is not funcitonal.
Composite-timeweighted_*hrs - The Sigma pulls a sample every * hours and places it into a single carboy.  Usually the volume of the pull is 250ml.  The number of hours varied when we first switched to this technique, but is now every 6hrs (4 time per day).
Composite-flowweighted_*cms - The Sigma pulls a sample every * cubic meters per second pumped into a single carboy.  The amount of cubic meters varies depending on the time of year.  This technique relies on a depth sonde attached to the Sigma with associated rating curve.  No longer used due to unreliablity of the depth sonde.
Samples were processed at the Ecosystems Center in Woods Hole, MA. The processing procedure includes neutralization with sodium hydroxide and sodium bicarbonate, persulfate digestion, and nitrate and phosphate analysis using a Lachat auto-analyzer or spectrophotometer. 
As of 2004 TN and TOC are run together on a Shimadzu TN/TOC analyzer.  Prior to 2004, TN was first digested and then run on a Lachat.  TP is still digested and run on a spec.  Where samples exist in archive TOC will be run to complement TNs.
NOTES AND COMMENTS: Some of the samples from this data set have yet to be run and/or need to be re-run. This file will be updated as samples are analyzed.  Specifically, TN and TOC data back to 2004 is still being run to fill in holes.
 
Permanent_ID           Site X                             Site Y                          Description                                 Site ID in SigmaNutrients
YSI-SB                    225840                          919310               Suburban Headwater Stream                                   SB
YSI-CC                    247680                          946790                Forested Headwater Stream                                   CC
YSI-CS                                                                                   Wetland Headwater Stream                                    CS
IP24                        254280                          936350                Mouth of the Ipswich (Sylvania Dam)                        ID
10                           246600                          944510                 Mouth of the Parker (Central St.)                            PD
 
For 2014, no samples were collected at SB prior to 10/13 due to the sampler requiring service

Quality Control
Quality Control Step 1:

Description:

All of our analyses go through an initial QA/QC at the time of analysis.  This includes replicates, standard curves and percent digestion (TP) and nitrate-nitrite conversion (NO3), as well as regular standard checks.  Despite this QA/QC there are several cases in which other questions might arise, including a small number of samples for which reported NO3 values exceed TN values. See notes for additional issues regarding data quality.

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@environmentaldatainitiative.org

Web Address:

https://environmentaldatainitiative.org

Creators:

Individual:

Wilfred Wollheim

Address:

WSAG Institute for the Study of Earth, Oceans, and Space,Morse Hall, Room 452, 8 College Road,

Durham, NH 03824 US

Phone:

(603) 862-0812 (voice)

Email Address:

Wil.Wollheim@unh.edu

Id:

http://orcid.org/0000-0002-5009-3212

Organization:

Plum Island Ecosystems LTER

Web Address:

http://pie-lter.ecosystems.mbl.edu/

Contacts:

Organization:

Plum Island Ecosystems LTER

Web Address:

http://pie-lter.ecosystems.mbl.edu/

Associated Parties:

Individual:

Corey Lawrence

Address:

U.S. Geological Survey 345 Middlefield Rd., MS 962,

Menlo Park, CA 94025 US

Phone:

(650) 329-4961 (voice)

Phone:

(650) 329-4920 (facsimile)

Email Address:

clawrence@usgs.gov

Role:

associated researcher

Individual:

Jeff Evans

Address:

Email Address:

unknown11@mbl.edu

Role:

associated researcher

Individual:

Brian Pellerin

Address:

USGS Water Mission Area,

Reston, VA 20192 US

Email Address:

bpeller@usgs.gov

Role:

associated researcher

Individual:

Hap Garritt

Address:

Marine Biological Lab, 7 MBL Street,

Woods Hole, MA 02543 US

Phone:

(508) 289-7485 (voice)

Phone:

(508) 457-1548 (facsimile)

Email Address:

hgarritt@mbl.edu

Id:

http://orcid.org/0000-0001-5912-0769

Role:

associated researcher

Individual:

Emily Gaines

Address:

Email Address:

emilygaines1@yahoo.com

Role:

associated researcher

Individual:

Joe Thouin

Address:

University of New Hampshire,

Durham, NH 03824 US

Email Address:

jthouin@unh.edu

Role:

associated researcher

Individual:

William Lee

Address:

Email Address:

wmcdonaldlee@gmail.com

Role:

associated researcher

Individual:

Aaron Strong

Address:

Email Address:

aaronlstrong@gmail.com

Role:

associated researcher

Individual:

Christina Maki

Address:

Email Address:

christinamaki@gmail.com

Role:

associated researcher

Individual:

Nat Morse

Address:

University of New Hampshire, 208 Morse Hall,

Durham, NH 03824 US

Phone:

(603) 862-0350 (voice)

Email Address:

nat.morse@unh.edu

Role:

associated researcher

Individual:

Amanda Hope

Address:

University of New Hampshire,

Durham, NH US

Email Address:

a.hope@unh.edu

Role:

associated researcher

Individual:

Rebecca Prosser

Address:

Email Address:

rebecca.lynne.prosser@gmail.com

Role:

associated researcher

Individual:

Catherine Caruso

Address:

Marine Biological Laboratory, 7 MBL Street,

Woods Hole, MA 02543 US

Phone:

(508) 289-7731 (voice)

Email Address:

ccaruso@mbl.edu

Role:

associated researcher

Individual:

Chris Whitney

Address:

University of New Hampshire,

Durham, NH 03824 US

Email Address:

ctw1@wildcats.unh.edu

Role:

associated researcher

Metadata Providers:

Organization:

Plum Island Ecosystems LTER

Web Address:

http://pie-lter.ecosystems.mbl.edu/

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

2001-10-25

End:

2019-12-09

Sampling Site:

Description:

Watershed water collection and stream characterization site for Cart Creek (forest landuse), Newbury, MA

Site Coordinates:

Longitude (degree):

-70.916496276855

Latitude (degree):

42.769199371338

Sampling Site:

Description:

Watershed water collection and stream characterization site for Saw Mill Brook (urban landuse), Burlington, MA

Site Coordinates:

Longitude (degree):

-71.184997558594

Latitude (degree):

42.523601531982

Sampling Site:

Description:

Watershed water collection and stream characterization site for Cedar Swamp (wetland landuse), Reading, MA

Site Coordinates:

Longitude (degree):

-71.090896606445

Latitude (degree):

42.549499511719

Sampling Site:

Description:

Watershed water collection and stream characterization site for Ipswich River Sylvania Dam, Ipswich, MA

Site Coordinates:

Longitude (degree):

-70.837684631348

Latitude (degree):

42.677543640137

Sampling Site:

Description:

Watershed water collection and stream characterization site for Parker River Central St Dam, Newbury, MA

Site Coordinates:

Longitude (degree):

-70.929214477539

Latitude (degree):

42.750007629395

Project

Parent Project Information:

Title:

Plum Island Ecosystems Long Term Ecological Research (PIE LTER IV, 2016-2022)

Personnel:

Individual:

Anne Giblin

Address:

Marine Biological Lab, 7 MBL Street,

Woods Hole, MA 02543 US

Phone:

(508) 289-7488 (voice)

Phone:

(508) 457-1548 (facsimile)

Email Address:

agiblin@mbl.edu

Id:

http://orcid.org/0000-0003-3851-2178

Role:

principalInvestigator

Individual:

Wilfred Wollheim

Address:

WSAG Institute for the Study of Earth, Oceans, and Space,Morse Hall, Room 452, 8 College Road,

Durham, NH 03824 US

Phone:

(603) 862-0812 (voice)

Email Address:

Wil.Wollheim@unh.edu

Id:

http://orcid.org/0000-0002-5009-3212

Role:

principalInvestigator

Individual:

Jim Morris

Address:

Bell Baruch Institute for Marine and Coastal Sciences, University of South Carolina,

Columbia, SC 29208 US

Phone:

(803) 777-5288 (voice)

Phone:

(803) 777-4002 (facsimile)

Email Address:

morris@inlet.geol.sc.edu

Web Address:

http://research.cas.sc.edu/morris/

Role:

principalInvestigator

Individual:

Nathaniel Weston

Address:

Department of Geography and the Environment ,Villanova University, 800 Lancaster Avenue,

Villanova, PA 19085 US

Phone:

(610) 519-8009 (voice)

Email Address:

nathaniel.weston@villanova.edu

Id:

http://orcid.org/0000-0002-6837-360X

Role:

principalInvestigator

Individual:

Linda Deegan

Address:

Woods Hole Research Center,

Falmouth, MA 02540 US

Phone:

508-444-1557 (voice)

Email Address:

ldeegan@whrc.org

Id:

http://orcid.org/0000-0002-1017-9599

Role:

principalInvestigator

Individual:

Joe Vallino

Address:

Marine Biological Laboratory, 7 MBL Street,

Woods Hole, MA 02543 US

Phone:

(508) 289-7648 (voice)

Phone:

(508) 457-1548 (facsimile)

Email Address:

jvallino@mbl.edu

Id:

http://orcid.org/0000-0002-4184-4512

Role:

principalInvestigator

Individual:

Robert Pontius

Address:

Clark University, School of Geography, 950 Main Street,

Worcester, MA 01610 US

Phone:

(508) 793-7761 (voice)

Phone:

(508) 793-8881 (facsimile)

Email Address:

rpontius@clarku.edu

Id:

http://orcid.org/0000-0001-7287-5875

Role:

principalInvestigator

Individual:

Jarrett Byrnes

Address:

University of Massachusetts, College of Science and Mathematics,100 Morrissey Blvd,

Boston, MA 02125 US

Phone:

(617) 287-3145 (voice)

Email Address:

Jarrett.Byrnes@umb.edu

Id:

http://orcid.org/0000-0002-9791-9472

Role:

principalInvestigator

Abstract:

The Plum Island Ecosystems (PIE) LTER is developing a predictive understanding of the response of a linked watershed-marsh-estuarine system in northeastern Massachusetts to rapid environmental change. Over the last 30 years, surface sea water temperatures in the adjacent Gulf of Maine have risen at 3 times the global average, rates of sea-level rise have accelerated, and precipitation has increased. Coupled with these changes in climate and sea level are substantial changes within the rapidly urbanizing watersheds that influence water, sediment, and nutrient delivery to the marsh and estuary. In PIE IV our focus is on: Dynamics of coastal ecosystems in a region of rapid climate change, sea-level rise, and human impacts.

NSF OCE LTER-Plum Island Ecosystems:
Dynamics of coastal ecosystems in a region of rapid climate change, sea-level rise, and human impacts.

Funding:

1637630

Maintenance

Maintenance:

Description:

Updated regularly to add dates or to enter data as analysis occurs.
Version 01, Sept, 2007. Updated to incorporate most recent data.
Version 02, 20 January 2010. Updated to include most recent data.
Version 03, February 20, 2011 updated data and metadata, variable names match
Version 04, 06Apr2012, data and metadata update. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 3/23/2012 12:08 PM for QA/QC to EML 2.1.0
Version 05, 14May2013, metadata and data updated to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007.xlsm 3/14/13 12:02 PM for QA/QC to EML 2.1.0
Version 06: February 19, 2016, data and metadata updates to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Jan2015.xlsm 1/15/15 4:26 PM for QA/QC to EML 2.1.0
Version 07: September 6, 2019, data and metadata updates to comply with importation to DEIMS7 and LTER Data Portal. Used MarcrosExportEML_HTML (working)pie_excel2007_Sep2019.xlsm 9/3/19 5:19 PM for QA/QC to EML 2.1.0
Version 08: July 27, 2021, data and metadata updates to resolve errors in previous version as well as include most recent data and to comply with importation to DEIMS7 and LTER Data Portal. Used MarcrosExportEML_HTML (working)pie_excel2007_Jul2021.xlsm 7/26/2021 9:04 AM for QA/QC to EML 2.1.0.

Frequency:

Other Metadata

Additional Metadata

additionalMetadata
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        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = 'µmol/L'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'micromolePerLiter'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.000001'
        |     |     |     |  \___attribute 'name' = 'micromolePerLiter'
        |     |     |     |  \___attribute 'parentSI' = 'molarity'
        |     |     |     |  \___attribute 'unitType' = 'amountOfSubstanceConcentration'
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        |     |     |     |     |___text 'micromoles per liter of solution'
        |     |     |     |___text '\n        '
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        |___text '\n  '

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

PIE LTER nutrient samples collected by Sigma Autosampler between 2001 and 2017 in three headwater sites of contrasting land use, and at the Parker and Ipswich River Dams as they enter into the Plum Island Sound estuary, Massachusetts.

Data Entities

Data Table

Non-Categorized Data Resource

Data Package Usage Rights

Data Policies

Keywords

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

PIE LTER nutrient samples collected by Sigma Autosampler between 2001 and 2017 in three headwater sites of contrasting land use, and at the Parker and Ipswich River Dams as they enter into the Plum Island Sound estuary, Massachusetts.

+/- Data Entities

Data Table

Non-Categorized Data Resource

+/- Data Package Usage Rights

Data Policies

+/- Keywords

+/- Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata