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BRD * Upper Delaware River Basin Environmental Flows Study
"Upper Delaware River Basin Environmental Flows Study
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BRD * Upper Delaware River Basin Environmental Flows Study
Metadata:
Identification_Information
Data_Quality_Information
Metadata_Reference_Information
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Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey, Fort Collins Science Center (FORT)
Publication_Date: Unpublished material
Title: BRD * Upper Delaware River Basin Environmental Flows Study
Geospatial_Data_Presentation_Form: project
Description:
Abstract:
New York City's Delaware system impounds Delaware River tributaries in three reservoirs: Cannonsville Reservoir on the West Branch, Pepacton Reservoir on the East Branch, and the Neversink Reservoir on the Neversink River. Approximately 725,985 AF/yr is diverted out of the Delaware Basin from these reservoirs through the Delaware Aqueduct. The Delaware River Basin Compact, which became law in 1961, created the Delaware River Basin Commission (DRBC) to manage water resources of the basin and to help resolve regional resource conflicts without returning to court. The DRBC is made up of the governors from the states of Delaware, New Jersey, New York, and Pennsylvania, and a federal represented appointed by the President. Using its authority, the DRBC funded a ?Flow Needs Study? designed to define flow related issues, provide tools (featuring a flow simulation model called OASIS), and recommend additional study needs to help resolve interstate flow management issues. This study identified many cases where the technical basis for flow management decisions required strengthening. One such area is the updating of ecologically based flow relationships for the Upper Delaware main stem and tributaries. The recent discovery of several colonies of Dwarf Wedgemussel, an endangered species, on the Upper Main Stem Delaware has highlighted the need for additional ecological assessment of the flow regime. There are a number of operational and management factors which affect the flow regime in the Upper Delaware Basin. Among these are the Montague flow target formula, minimum NYC reservoir releases, NYCDEP reservoir management decisions, the reservoir operating rule curves, and reservoir capacity. Montague flow target: During normal conditions as defined by the operating rule curves, New York City can divert up to 800 million gallons a day (2,456 AF) out of the three reservoirs as long as a Delaware River flow target of 1,750 cubic feet per second (cfs) is met at the Montague, NJ gage. New York City must comply with this direction, but may use any of the three Upper Delaware reservoirs to do so, making the low flow regime in the upper Delaware and tributaries highly variable. Minimum releases: New York State Department of Environmental Conservation (DEC) regulations require minimum releases from the three reservoirs for conservation purposes. During periods of drought watch, drought warning, and drought as defined by the operating rule curves, both flow targets and minimum releases would be reduced under the proposal. In addition, thermal releases are also made when needed to protect coldwater fisheries below the reservoirs. Rule curves: The rule curves defining drought watch, warning and drought conditions represent a seasonal water allocation of NYC reservoir storage among the decree parties. Drought or drought warning operations have been invoked frequently in recent history, resulting in frequent enforcement of the basic conservation release and abnormally low flows for extended periods of time. Reservoir capacity: Reservoir spills result when large runoff events occur when the reservoir is full or nearly full. Under natural conditions, peak flows would normally occur in April and May in response to snowmelt runoff. Attenuation of peaks is greatest in the Neversink River and least in the West Branch due to differences in reservoir capacity and inflow.
Purpose:
Program - Fisheries: Aquatic and Endangered Resources Goal 4 Aquatic Species and Habitats -Quantify and describe functional relationships among aquatic species and habitats to provide information to conserve or restore aquatic community function. Goal 5 Aquatic Species at Risk - Provide science support to natural resource managers by investigating the factors that contribute to the conservation and recovery of aquatic species at risk. Goal 6 Research Support and Technical Assistance - Enhance research capabilities and technical assistance to provide research support to DOI bureaus, other government agencies, Tribes, and NGO's for application in natural resource management problem solving and decision making. Objective: Identification of environmental flows for the Neversink, East and West Branch of the Delaware Rivers. Continuation of the project initiated January 2004. The USGS' involvement in the Upper Delaware is a the result of Congressional funding directed towards the study of instream habitat needs in the Upper Delaware. This project was proposed for federal funding by a coalition of non-profit groups (inluding The Nature Conservancy, Trout Unlimited, and the Delaware River Foundation) and supported by the Delaware River Basin Commission. The study plan was developed in conjunction with the Subcommittee on Ecological Flows for the Delaware Basin (SEF). SEF's goal is to ?to develop ecological flow requirements for the maintenance or restoration of healthy self-sustaining and managed aquatic ecosystems in the Delaware Basin.? The goal of the present study is provide information relating instream habitat and streamflow to fill data gaps that currently exist in the OASIS model. Specifically, the objectives of the study are: 1) the quantification of habitat metrics over a range of discharges and seasons at selected locations in the three tributaries and mainstem Delaware, 2) development and calibration of a network-wide temperature simulation model for the upper Delaware River basin, and 3) development of a prototype decision support system to assist DRBC and other stakeholders to analyze and interpret water management and reservoir operations alternatives.
Supplemental_Information:
Information used to prepare this metadata was extracted from FORT entries in the USGS BASIS+ database for 832798A.22.0 on 11/15/2005
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates_Times:
Beginning_Date: 20031001
Ending_Date: 20070930
Currentness_Reference: Observed
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent: United States, New York, NY
Bounding_Coordinates:
West_Bounding_Coordinate: -79.76347
East_Bounding_Coordinate: -71.85608
North_Bounding_Coordinate: 45.01111
South_Bounding_Coordinate: 40.50656
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: rivers
Theme_Keyword: stream
Theme_Keyword: modeling
Theme_Keyword: dams
Theme_Keyword: decision support systems
Theme_Keyword: ecosystems
Theme_Keyword: aquatic ecosystems
Theme_Keyword: habitat
Theme_Keyword: endangered species
Theme_Keyword: river system management
Theme_Keyword: water quality
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: New York
Place_Keyword: NY
Access_Constraints: Contact principal investigator after completion of project
Use_Constraints: Contact principal investigator after completion of project
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bovee, Ken D.
Contact_Organization: U.S. Geological Survey, Fort Collins Science Center (FORT)
Contact_Address:
Address_Type: mailing and physical
Address: U.S. Geological Survey, Fort Collins Science Center (FORT)
Address: 2150 Centre Avenue, Bldg C
City: Fort Collins
State_or_Province: CO
Postal_Code: 80526-8118
Country: USA
Contact_Voice_Telephone: (970) 226-9100
Contact_Facsimile_Telephone: (970) 226-9230
Cross_Reference:
Citation_Information:
Originator: Bovee, K.D
Publication_Date: 2005
Title:
USGS workshop: linking hydrological change and ecological response in streams and rivers of the eastern United States, February 8-10, 2005, Herndon, VA
Geospatial_Data_Presentation_Form: Abstract
Publication_Information:
Publication_Place: Herndon, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: 1 pp.
Larger_Work_Citation:
Citation_Information:
Originator: Information not in the FORT Pubs database system
Publication_Date: 2005
Title:
USGS workshop: linking hydrological change and ecological response in streams and rivers of the eastern United States, February 8-10, 2005, Herndon, VA
Geospatial_Data_Presentation_Form:
USGS workshop: linking hydrological change and ecological response in streams and rivers of the eastern United States, February 8-10, 2005, Herndon, VA
Publication_Information:
Publication_Place: Herndon, VA
Publisher: U.S. Geological Survey
Other_Citation_Details: 1 pp.
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Data_Quality_Information:
Logical_Consistency_Report: Unknown
Completeness_Report: Unknown
Lineage:
Methodology:
Methodology_Type: Field and/or lab
Methodology_Description:
Collect bathymetric, habitat and discharge data for 11 sites in the Upper Delaware River (UDR) system. Prepare streambed topography, computational mesh and 2-D model input files, and simulate 12 - 15 unmeasured discharges for each site. Prepare GIS-based habitat maps for 10 - 12 habitat classes for each simulated discharge. Compile information from the habitat maps into functional relationships between habitat class metrics and discharge. Assemble these relationships in a DSS to display the results of alternative operating regimes for the UDR.
Process_Step:
Process_Description:
Program - Fisheries: Aquatic and Endangered Resources Goal 4 Aquatic Species and Habitats -Quantify and describe functional relationships among aquatic species and habitats to provide information to conserve or restore aquatic community function. Goal 5 Aquatic Species at Risk - Provide science support to natural resource managers by investigating the factors that contribute to the conservation and recovery of aquatic species at risk. Goal 6 Research Support and Technical Assistance - Enhance research capabilities and technical assistance to provide research support to DOI bureaus, other government agencies, Tribes, and NGO's for application in natural resource management problem solving and decision making. Objective 1: Quantification of habitat metrics over a range of discharges. A. Complete collection of bathymetric data for remaining sites. We anticipate collection of the remaining bathymetric data for two mainstem Delaware River sites and one Neversink site during May, 2005. B. Complete habitat maps for all sites and simulated flows by October, 2005. Objective 2. Development and calibration of a network-wide temperature simulation model for the upper Delaware River basin. This task is complete or nearly complete. Objective 3: Development of a prototype decision support system. Work on this objective will begin upon completion of the habitat classification maps for all sites. We are exploring the feasibility of posting results from DSS runs to the Delaware River NBII layer.
Process_Date: Not complete
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Metadata_Reference_Information:
Metadata_Date: 20051220
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Fort Collins Science Center (FORT)
Contact_Person: FORT Metadata Specialist
Contact_Address:
Address_Type: mailing and physical
Address: U.S. Geological Survey, Fort Collins Science Center (FORT)
Address: 2150 Centre Avenue, Bldg C
City: Fort Collins
State_or_Province: CO
Postal_Code: 80526-8118
Country: USA
Contact_Voice_Telephone: (970) 226-9100
Contact_Facsimile_Telephone: (970) 226-9230
Metadata_Standard_Name:
FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
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