Baseflow Stations

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Washington State Department of Ecology
Publication_Date: 20000330
Title: Baseflow Stations
Edition: 1
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Baseflow Stations
Publication_Information:
Publication_Place: Olympia, Washington
Publisher: Washington State Department of Ecology
Online_Linkage: http://www.ecy.wa.gov/services/gis/data/data.htm#b
Description:
Abstract:
Automated hydrograph separation techniques were used to evaluate the groundwater contribution to total streamflow (baseflow) at active and inactive stream guaging stations throughout Washington State. Discharge records for 582 guaging stations, with at least three complete water years of daily mean streamflow data, were downloaded from the U.S. Geological Survey (USGS) National Water Information System. Station characteristics were compiled for each gage, including period of streamflow record, type and degree of regulation affecting the gage, watershed drainage area, USGS station number, station name, and gage location.

Summary statistics were calculated for annual mean streamflow and annual 7-day low flow for all 582 stations. Monthly, and in some cases annual, statistics for baseflow were then estimated using a USGS hydrograph separation software program called HYSEP (Sloto and Crouse, 1996) for those stations judged to be free of significant snowmelt or regulation effects.

Purpose:
To improve our understanding of the baseflow characteristics of Washington rivers and streams and the role groundwater discharge plays in maintaining streamflow.
Supplemental_Information:
The methods used to define the baseflow and streamflow statistics are described in the following report: Estimated Baseflow Characteristics of Selected Washington Rivers and Streams, Water Supply Bulletin No. 60, (Publication No. 99-327) by Sinclair, K. A., and Pitz, C. F. 1999. The report is available at <http://www.ecy.wa.gov/biblio/99327.html>. Users of this data are strongly encouraged to read the report to better understand the limitations and potential uses of this information.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19991001
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.695291
East_Bounding_Coordinate: -116.769730
North_Bounding_Coordinate: 49.209885
South_Bounding_Coordinate: 45.560808
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: streamflow
Theme_Keyword: baseflow
Theme_Keyword: groundwater
Theme_Keyword: drainage
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Washington
Place_Keyword: Pacific
Place_Keyword: Northwest
Access_Constraints: None
Use_Constraints: <http://www.ecy.wa.gov/copyright.html>
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Washington State Department of Ecology
Contact_Person: Kirk Sinclair
Contact_Position: Environmental Specialist
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 47600
City: Olympia
State_or_Province: Washington
Postal_Code: 98504-7600
Country: United States of America
Contact_Address:
Address_Type: physical address
Address: 300 Desmond Drive
City: Olympia
State_or_Province: Washington
Postal_Code: 98503-1274
Country: United States of America
Contact_Voice_Telephone: (360) 407-6557
Contact_Facsimile_Telephone: (360) 407-6884
Contact_Electronic_Mail_Address: kirk.sinclair@ecy.wa.gov
Hours_of_Service: 0800-1700 (Pacific)
Browse_Graphic:
Browse_Graphic_File_Name: <http://www.ecy.wa.gov/services/gis/data/strmflow/baseflow.jpg>
Browse_Graphic_File_Description: Simple image
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
Washington State Department of Ecology, U.S. Geological Survey (USGS)
Security_Information:
Security_Classification: Unclassified
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.0.0.535

Data_Quality_Information:
Completeness_Report: Data set is complete
Lineage:
Process_Step:
Process_Description:
See published report at <http://www.ecy.wa.gov/biblio/99327.html> for a detailed description of the data compilation and analysis methods.
Process_Date: 1999
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Washington State Department of Ecology
Contact_Person: Kirk Sinclair
Contact_Position: Groundwater Water Quality Investigations
Contact_Address:
Address_Type: mailing address
Address: PO Box 47600
City: Olympia
State_or_Province: Washington
Postal_Code: 98504-7600
Country: United States of America
Contact_Address:
Address_Type: physical address
Address: 300 Desmond Drive
City: Olympia
State_or_Province: Washington
Postal_Code: 98504-1274
Country: United States of America
Contact_Voice_Telephone: (360) 407-6557
Contact_Facsimile_Telephone: (360) 407-6884
Contact_Electronic_Mail_Address: kirk.sinclair@ecy.wa.gov
Hours_of_Service: 0800-1700 (Pacific)
Cloud_Cover: Unknown

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 582
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 4

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 45.833333
Standard_Parallel: 47.333333
Longitude_of_Central_Meridian: -120.500000
Latitude_of_Projection_Origin: 45.333333
False_Easting: 1640416.666667
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.004096
Ordinate_Resolution: 0.004096
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983_HARN
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: baseflow
Entity_Type_Definition: Attribute table
Attribute:
Attribute_Label: WRIA
Attribute_Definition: Water Resource Inventory Area number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 62
Attribute:
Attribute_Label: COUNTY
Attribute_Definition: Name of county where the point is located
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 62
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: STATION_NO
Attribute_Definition: USGS station number
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 59
Attribute_Units_of_Measure: minutes
Attribute:
Attribute_Label: LAT_DEGS
Attribute_Definition: Site latitude in degrees
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 59
Attribute_Units_of_Measure: seconds
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 59
Attribute:
Attribute_Label: LAT_MINS
Attribute_Definition: Site longitude in minutes
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 117
Range_Domain_Maximum: 125
Attribute_Units_of_Measure: degrees
Attribute:
Attribute_Label: LAT_SECS
Attribute_Definition: Site longitude in seconds
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 59
Attribute_Units_of_Measure: minutes
Attribute:
Attribute_Label: HUC
Attribute_Definition: Hydrologic Unit Code
Attribute:
Attribute_Label: LONG_DEGS
Attribute_Definition: Site longitude in degrees
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 59
Attribute:
Attribute_Label: LONG_MINS
Attribute_Definition: Site longitude in minutes
Attribute:
Attribute_Label: LONG_SECS
Attribute_Definition: Site longitude in seconds
Attribute:
Attribute_Label: REGULATION
Attribute_Definition: Degree of streamflow regulation
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: None
Enumerated_Domain:
Enumerated_Domain_Value: Low
Enumerated_Domain:
Enumerated_Domain_Value: Moderate
Enumerated_Domain:
Enumerated_Domain_Value: High
Attribute:
Attribute_Label: REG_TYPE
Attribute_Definition: Type of streamflow regulation
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A
Enumerated_Domain_Value_Definition:
Flow effected by diversions for aquaculture/fish hatchery operations
Enumerated_Domain:
Enumerated_Domain_Value: D
Enumerated_Domain_Value_Definition:
Flow effected by domestic, municipal, or industrial water diversions
Enumerated_Domain:
Enumerated_Domain_Value: F
Enumerated_Domain_Value_Definition:
Flow effected by reservior retention and release for flood control
Enumerated_Domain:
Enumerated_Domain_Value: H
Enumerated_Domain_Value_Definition: Flow effected by hydropower diversion/generation
Enumerated_Domain:
Enumerated_Domain_Value: I
Enumerated_Domain_Value_Definition: Flow effected by irrigation withdrawals
Enumerated_Domain:
Enumerated_Domain_Value: L
Enumerated_Domain_Value_Definition: Low flows supplemented by reservoir releases
Enumerated_Domain:
Enumerated_Domain_Value: M
Enumerated_Domain_Value_Definition:
Flow seasonally affected by significant snowmelt or glacial-melt water
Enumerated_Domain:
Enumerated_Domain_Value: N
Enumerated_Domain_Value_Definition:
Flow effected by natural regulation such as lake storage, snowmelt, or other effects
Enumerated_Domain:
Enumerated_Domain_Value: O
Enumerated_Domain_Value_Definition:
Flow know to be effected by nonspecific causes (small impoundments, check dams, ground water pumpage, etc.)
Enumerated_Domain:
Enumerated_Domain_Value: R
Enumerated_Domain_Value_Definition:
Flow effected by reservoir releases. The inital date of regulation is indicated if known. For mulitple reservoir systems, the indicated data is for the first reservoir constructed.
Enumerated_Domain:
Enumerated_Domain_Value: S
Enumerated_Domain_Value_Definition:
Stream flow supplemented by well discharge, interbasin transfer, or industrial/municipal discharges.
Enumerated_Domain:
Enumerated_Domain_Value: U
Enumerated_Domain_Value_Definition: Natural flow effected by urbanization
Enumerated_Domain:
Enumerated_Domain_Value: *
Enumerated_Domain_Value_Definition:
"Present" (as used to describe the station period of record) refers to stream gages that were active as of 1997
Attribute:
Attribute_Label: SITE_NAME
Attribute_Definition: USGS station name
Attribute_Domain_Values:
Attribute:
Attribute_Label: MAP_ID
Attribute_Definition: Map ID designated on Plate 1 of study report
Attribute_Domain_Values:
Attribute:
Attribute_Label: DRAINAGE_A
Attribute_Definition: Watershed drainage area above stream gage (mi2)
Attribute:
Attribute_Label: PERIOD_OF_
Attribute_Definition: Period of data record
Attribute:
Attribute_Label: YEARS_OF_D
Attribute_Definition: Years of data record
Detailed_Description:
Entity_Type:
Entity_Type_Label: BASEFLOW.STATS
Entity_Type_Definition:
Annual summary statistics table for baseflow and streamflow for the station period of record.
Attribute:
Attribute_Label: MAX_7D_CFS
Attribute_Definition: Maximum of annual means - 7 day lowflow (ft3/sec)
Attribute:
Attribute_Label: MAX_BF%SF
Attribute_Definition: Maximum of annual means - baseflow (as % of total streamflow)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MAX_BF_CFS
Attribute_Definition: Maximum of annual means - baseflow (ft3/sec)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MAX_BF_IN
Attribute_Definition: Maximum of annual means - baseflow (in)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MAX_SF_CFS
Attribute_Definition: Maximum of annual means - streamflow (ft3/sec)
Attribute:
Attribute_Label: MAXBFCFSMI2
Attribute_Definition: Maximum of annual means - baseflow (ft3/sec/mi2)
Attribute:
Attribute_Label: MED_7D_CFS
Attribute_Definition: Median of annual means - 7 day lowflow (ft3/sec)
Attribute:
Attribute_Label: MED_BF%SF
Attribute_Definition: Median of annual means - baseflow (as % of total streamflow)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MED_BF_CFS
Attribute_Definition: Median of annual means - baseflow (ft3/sec)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MED_BF_IN
Attribute_Definition: Median of annual means - baseflow (in)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MED_SF_CFS
Attribute_Definition: Median of annual means - streamflow (ft3/sec)
Attribute:
Attribute_Label: MEDBFCFSMI2
Attribute_Definition: Median of annual means - baseflow (ft3/sec/mi2)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MIN_7D_CFS
Attribute_Definition: Minimum of annual means - 7 day lowflow (ft3/sec)
Attribute:
Attribute_Label: MIN_BF%SF
Attribute_Definition: Minimum of annual means - baseflow (as % of total streamflow)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MIN_BF_CFS
Attribute_Definition: Minimum of annual means - baseflow (ft3/sec)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MIN_BF_IN
Attribute_Definition: Minimum of annual means - baseflow (in)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MIN_SF_CFS
Attribute_Definition: Minimum of annual means - streamflow (ft3/sec)
Attribute:
Attribute_Label: MINBFCFSMI2
Attribute_Definition: Minimum of annual means - baseflow (ft3/sec/mi2)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: STATION_NO
Attribute_Definition: USGS station number
Attribute_Definition_Source: USGS
Attribute:
Attribute:
Detailed_Description:
Entity_Type:
Entity_Type_Label: BASEFLOW.MONTH
Entity_Type_Definition:
Monthly summary statistics for baseflow and streamflow for the station period of record
Attribute:
Attribute_Label: DRNAREAMI2
Attribute_Definition: Watershed drainage area above stream gage in square miles
Attribute:
Attribute_Label: MEANBF_CFS
Attribute_Definition: Mean baseflow (ft3/sec)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MEANBF_IN
Attribute_Definition: Mean baseflow (in)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MEANSF_CFS
Attribute_Definition: Mean streamflow (ft3/sec)
Attribute:
Attribute_Label: MEANSF_IN
Attribute_Definition: Mean streamflow (in)
Attribute:
Attribute_Label: MEANSRO_IN
Attribute_Definition: Mean surface runoff (in)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MN_BF%SF
Attribute_Definition: Mean baseflow as a percent of total streamflow
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MN_SRO_CFS
Attribute_Definition: Mean surface runoff (ft3/sec)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MNBFCFSMI2
Attribute_Definition: Mean baseflow (ft3/sec/mi2)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: -1
Enumerated_Domain_Value_Definition: Value not computed
Attribute:
Attribute_Label: MONTH
Attribute_Definition: Month
Attribute:
Attribute_Label: STATION_NM
Attribute_Definition: Station name
Attribute:
Attribute_Label: STATION_NO
Attribute_Definition: USGS station number
Attribute_Definition_Source: USGS
Attribute:
Attribute_Label: WTRYRMNTH
Attribute_Definition: Water year month
Attribute:
Attribute:
Attribute:
Detailed_Description:
Entity_Type:
Entity_Type_Label: BASEFLOW.ANNUAL
Entity_Type_Definition: Annual baseflow and streamflow statistic by water year
Attribute:
Attribute_Label: 7-DMIN_CFS
Attribute_Definition: Annual mean 7 day lowflow (ft3/sec)
Attribute:
Attribute_Label: MEANBF_CFS
Attribute_Definition: Annual mean baseflow (ft3/sec)
Attribute:
Attribute_Label: MEANBF_IN
Attribute_Definition: Annual mean baseflow (in)
Attribute:
Attribute_Label: MN_BF%SF
Attribute_Definition: Annual mean baseflow (as a percent of total streamflow)
Attribute:
Attribute_Label: MN_SF_CFS
Attribute_Definition: Annual mean streamflow (ft3/sec)
Attribute:
Attribute_Label: MN_SRO_CFS
Attribute_Definition: Annual mean surface runoff (ft3/sec)
Attribute:
Attribute_Label: MNBFCFSMI2
Attribute_Definition: Annual mean baseflow (ft3/sec/mi2)
Attribute:
Attribute_Label: STATION_NM
Attribute_Definition: Station name
Attribute:
Attribute_Label: STATION_NO
Attribute_Definition: USGS station number
Attribute_Definition_Source: USGS
Attribute:
Attribute_Label: WATER_YR
Attribute_Definition: Water year
Attribute:
Attribute:
Attribute:
Overview_Description:
Entity_and_Attribute_Overview:
ARC/INFO point attribute table (PAT), and related statistics tables

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Washington State Department of Ecology
Contact_Position: Spatial Database Administrator
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 47600
City: Olympia
State_or_Province: Washington
Postal_Code: 98504-7600
Country: United States of America
Contact_Address:
Address_Type: physical address
Address: 300 Desmond Drive
City: Olympia
State_or_Province: Washington
Postal_Code: 98503-1274
Country: United States of America
Contact_Voice_Telephone: (360) 407-6121
Contact_Facsimile_Telephone: (360) 407-6397
Contact_Electronic_Mail_Address: gis@ecy.wa.gov
Hours_of_Service: 0800-1700 (Pacific)
Resource_Description: ArcGIS data layer
Distribution_Liability:
The Washington State Department of Ecology provides these geographic data "AS IS" WITHOUT A WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR USE, AND/OR NON-INFRINGEMENT.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: SHP
Format_Specification: shapefile
Transfer_Size: 0.016
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://www.ecy.wa.gov/services/gis/data/data.htm#b>
Fees: $75/hour, one hour minimum.
Ordering_Instructions:
Digital data order form is available at <http://www.ecy.wa.gov/services/gis/data/digital.doc>.
Turnaround: One week
Custom_Order_Process:
Available in other formats by request. Please contact: GIS Technical Services, Washington State Department of Ecology.
Technical_Prerequisites: Ability to use ESRI shapefile format
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:

Metadata_Reference_Information:
Metadata_Date: 20051219
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Washington State Department of Ecology
Contact_Position: Spatial Database Administrator
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 47600
City: Olympia
State_or_Province: Washington
Postal_Code: 98504-7600
Country: United States of America
Contact_Address:
Address_Type: physical address
Address: 300 Desmond Drive
City: Olympia
State_or_Province: Washington
Postal_Code: 98503-1274
Country: United States of America
Contact_Voice_Telephone: (360) 407-6121
Contact_Facsimile_Telephone: (360) 407-6397
Contact_Electronic_Mail_Address: gis@ecy.wa.gov
Hours_of_Service: 0800-1700 (Pacific)
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Security_Information:
Metadata_Security_Classification: Unclassified
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.8.6 on Mon Dec 19 17:22:26 2005