Short Citation:
Office for Coastal Management, 2021: Tracking Nitrogen Pollution in New Hampshire's Great Bay - NERRS/NSC(NERRS Science Collaborative),

Item Identification

Title: Tracking Nitrogen Pollution in New Hampshire's Great Bay - NERRS/NSC(NERRS Science Collaborative)
Status: Completed

Stretching 15 miles inland, New Hampshire’s Great Bay cuts through the heart of one of the state’s most densely populated regions. Nitrogen concentrations in the bay have increased significantly, in part due to nonpoint sources of pollution such as poorly functioning septic systems and stormwater runoff. There is concern that this pollution will help usher Great Bay toward an ecological tipping point that, once crossed, will make recovery extremely challenging and costly.


To inform science-based solutions that reduce nonpoint nitrogen and improve the health of the bay, an interdisciplinary team from the Great Bay Reserve and the University of New Hampshire investigated nitrogen “hot spots” throughout the watershed and studied the capacity of Great Bay’s tributary rivers to mitigate the impact of this pollution.

Supplemental Information:

Project Lead and Contact:

Steve Miller, Great Bay NERR,

Project Type: Collaborative Research


Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Estuary
None nitrogen
None nonpoint source pollution
None nutrient pollution
None water quality

Spatial Keywords

Thesaurus Keyword
None Great Bay, NH

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: None Planned
Distribution Liability:

The distributor does not assume liability.

Support Roles

Metadata Contact

CC ID: 879794
Date Effective From: 2017-10-31
Date Effective To:
Contact (Person): Cothran, Jeremy
Email Address:


Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 881009
W° Bound: -70.97
E° Bound: -70.82
N° Bound: 43.18
S° Bound: 42.975

Great Bay, NH NERR

Extent Group 1 / Time Frame 1

CC ID: 879798
Time Frame Type: Range
Start: 2010-09-01
End: 2014-08-01

Access Information

Security Class: Unclassified
Data Access Constraints:


Data Use Constraints:

Cite this dataset when used as a source: NOAA retains the right to analyze, synthesize and publish summaries of the NERRS/NSC data. The NERRS/NSC retains the right to be fully credited for having collected and process the data. Following academic courtesy standards, the NERR site where the data were collected should be contacted and fully acknowledged in any subsequent publications in which any part of the data are used. The data enclosed within this package/transmission are only as accurate as the quality assurance and quality control procedures that are described in the associated metadata reporting statement allow. 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. Requested citation format: NOAA National Estuarine Research Reserve System (NERRS) Science Collaborative(NSC).



CC ID: 879795
URL Type:
Online Resource

This site provides a project overview and links to all associated products, including data.

Catalog Details

Catalog Item ID: 57773
Metadata Record Created By: Jeremy Cothran
Metadata Record Created: 2019-09-25 16:50+0000
Metadata Record Last Modified By: Tyler Christensen
Metadata Record Last Modified: 2019-11-01 14:47+0000
Metadata Record Published: 2019-11-01
Owner Org: OCM
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2020-11-01