Originator: Environmental Resource Research Institute
Publication_Date: 199807
Title: Pennsylvania Gap Analysis Project
Publication_Information:
Publication_Place: University Park, Pa
Publisher: Environmental Resource Research Institute
Description:
Abstract:
This layer delineates the watersheds for the more than 9800 named streams from the Pennsylvania Gazetteer of streams. Each watershed has been attributed with a code from 1 (small, no tributaries) to 8 (large, many tributaries) to indicate the order or size of the stream associated with the watershed. Also includes slope and human disturbance classification for watersheds.
Purpose:
Part of the Pennsylvania Gap Analysis progression, this dataset was designed to facilitate the interpretation of Pennsylvania's surface vegetation and habitat models for vertebrate species in the Commonwealth.
Supplemental_Information: For use at 1:24,000 or smaller scale.
These data are not to be redistributed for commercial profit. Reproduction or redistribution of this digital data set without permission of the Originator/Publisher is expressly forbidden. The Originator and Publisher should be clearly cited in any product derived from this data. Any modifications to this data must be described in any digital or hardcopy product derived from this data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph A. Bishop
Contact_Organization: Environmental Resources Research Institute
Contact_Address:
Address_Type: mailing address
Address:
Environmental Resources Research Institute, The Pennsylvania State University, Land and Water Building
City: University Park
State_or_Province: Pennsylvania
Postal_Code: 16802
Country: United States
Contact_Voice_Telephone: 814-863-0291
Contact_Electronic_Mail_Address:jab190@psu.edu
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Verified visually through comparison with source materials.
Logical_Consistency_Report: Topology exists.
Completeness_Report: Complete coverage for the state of Pennsylvania.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Created from source materials conforming to National Mapping Accuracy Standards for 1:24000 mapping. Verified through overlay with orthophotos.
95 percent of watershed boundary points through ground truthing fall within 10 meters of true position
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Environmental Resources Research Institute
Publication_Date: 19970503
Title: Pennsylvania - small watersheds
Publication_Information:
Publication_Place: Harrisburg, PA
Publisher: Pennsylvania Department of Environmental Protection
Source_Scale_Denominator: 24000
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1997
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: smallsheds
Source_Contribution: watershed boundary and identification information
Source_Information:
Source_Citation:
Citation_Information:
Originator: Environmental Resources Research Institute
Publication_Date: 1998
Title: Networked streams of Pennsylvania
Publication_Information:
Publication_Place: Harrisburg, PA
Publisher: Pennsylvania Department of Environmental Protection
Source_Scale_Denominator: 24000
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: netstreams
Source_Contribution: stream size information
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey (USGS), EROS Data Center
Publication_Date: 1999
Title: National Elevation Dataset for Pennsylvania
Edition: 1
Publication_Information:
Publication_Place: Sioux Falls, SD
Publisher: U.S. Geological Survey
Online_Linkage:padem
Source_Scale_Denominator: 100000
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: padem90
Source_Contribution: elevation data for slope calculation
Source_Information:
Source_Citation:
Citation_Information:
Originator: Pennsylvania Bureau of Topographic and Geologic Survey
Publication_Date: 2000
Title: Physiographic ecoregions of Pennsylvania
Source_Scale_Denominator: 100000
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: paecoregion
Source_Contribution: physiographic provinces and sections
Source_Information:
Source_Citation:
Citation_Information:
Originator: Wayne L. Myers, Joseph A. Bishop
Publication_Date: 1999
Title: Stratified land-use/land-cover for Pennsylvania
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: University Park, PA
Publisher:
Pennsylvania Gap Analysis Program. Environmental Resources Research Institute, The Pennsylvania State University
Source_Scale_Denominator: 100000
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1998
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: palcurb
Source_Contribution: information regarding human disturbance
Process_Step:
Process_Description:
The smallsheds layer was paired with the netstreams layer and interactively interpreted from a computer display to code stream order from 1-8 (small to large) according to the number of tributaries feeding into each stream.
Source_Used_Citation_Abbreviation: netstreams
Source_Used_Citation_Abbreviation: smallsheds
Process_Date: 1999
Process_Step:
Process_Description:
This ordered smallsheds layer was paired with the paecoregion layer and attribution for the physiographic province and section containing each watershed was added to the tables.
Source_Used_Citation_Abbreviation: paecoregion
Process_Date: 1999
Process_Step:
Process_Description:
Slope information was added for each watershed by performing statistical calculations on the padem data to derive the median slope contained in each watershed. Raw values were recoded using the 3 category reclassification.
Source_Used_Citation_Abbreviation: padem
Process_Date: 1999
Process_Step:
Process_Description:
To represent the amount of human activity in each watershed the palcurb grid was layered with the watershed boundaries. Areas classified as urban or suburban land use or perennial or annual herbaceous land cover were selected and percentage of watershed area in these classifications were calculated. The raw calculations were reclassified using the three categories included in the present layer.
Source_Used_Citation_Abbreviation: palcurb
Process_Date: 1999
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph A. Bishop
Contact_Organization: Environmental Resources Research Institute
Contact_Address:
Address_Type: mailing address
Address:
Environmental Resources Research Institute, The Pennsylvania State University, Land and Water Building
City: University Park
State_or_Province: Pennsylvania
Postal_Code: 16802
Country: United States
Contact_Voice_Telephone: 814-863-0291
Contact_Electronic_Mail_Address:jab190@psu.edu
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 53331
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 9941
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 9941
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 33
Standard_Parallel: 45
Longitude_of_Central_Meridian: -96
Latitude_of_Projection_Origin: 39
False_Easting: 0
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 30
Ordinate_Resolution: 30
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206
Denominator_of_Flattening_Ratio: 294.9786982
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: pasmalshed.pat
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature identifier
Attribute_Definition_Source: system supplied
Attribute:
Attribute_Label: SHAPE
Attribute_Definition: geometry
Attribute_Definition_Source: system supplied
Attribute:
Attribute_Label: AREA
Attribute_Definition: area of polygon (sq. meters)
Attribute_Definition_Source: system
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: perimeter of polygon (meters)
Attribute_Definition_Source: system
Attribute:
Attribute_Label: PASMALSHED#
Attribute_Definition: polygon identifier
Attribute_Definition_Source: system
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 9942
Attribute:
Attribute_Label: PASMALSHED-ID
Attribute_Definition: Polygon identifier
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 10034
Attribute:
Attribute_Label: SQM
Attribute_Definition: Area in square miles.
Attribute_Definition_Source: calculated
Attribute:
Attribute_Label: WRDS#
Attribute_Definition:
stream code number of the Water Resources Data System database for PaDEP.
Attribute_Definition_Source: Pennsylvania Gazetteer of Streams
Attribute:
Attribute_Label: NAME
Attribute_Definition: Name of stream
Attribute_Definition_Source: PA Gazetteer of Streams
Attribute:
Attribute_Label: HEIRLEVEL
Attribute_Definition: DEP identification of location stream in watershed waterway.
Attribute_Definition_Source: PADEP
Attribute:
Attribute_Label: HEIRCODE
Attribute_Definition:
DEP coding of relative location of the stream in the overall stream network of the watershed.
Attribute_Definition_Source: PADEP
Attribute:
Attribute_Label: HUC
Attribute_Definition:
USGS hydrologic unit code number and is defined as a numeric value with an input and output of eight digits.
Attribute_Definition_Source: U.S.G.S. water supply-paper 2294
Attribute:
Attribute_Label: ORDER
Attribute_Definition:
Integer 1-8 coding corresponding to stream size. 1 is smallest, no tributaries through 8 denoting large with many tributaries
Attribute_Definition_Source: PA GAP
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 8
Attribute:
Attribute_Label: STRSIZE
Attribute_Definition:
Stream size coding with 4 stream order classifications 1 (smallest) through 4 (largest). This is a reclassification of the ORDER attribute. Stream orders 1-2 were classified as STRSIZE 1, 3-4 were reclassified as 2, 5-6 to 3 and 7-8 were reclassified to stream size 4
Attribute_Definition_Source: PA GAP
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 4
Attribute:
Attribute_Label: SAMPLED
Attribute_Definition:
Binary code indicating if fish sampling inventory has been performed in this watershed
Attribute_Definition_Source: PA GAP
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: No sampling
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Sampling has occurred
Attribute:
Attribute_Label: DRAINCODE
Attribute_Definition: Code for one of the eight major basins used in GAP analysis
Attribute_Definition_Source: PA GAP
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Lake Erie
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: Allegheny River
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition: Ohio River
Enumerated_Domain:
Enumerated_Domain_Value: 4
Enumerated_Domain_Value_Definition: Monongahela River
Enumerated_Domain:
Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition: Potomac River
Enumerated_Domain:
Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition: Genessee River
Enumerated_Domain:
Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition: Susquehanna River
Enumerated_Domain:
Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition: Delaware River
Attribute:
Attribute_Label: DRAINAGE
Attribute_Definition: Name of major river basin
Attribute_Definition_Source: PA GAP
Attribute:
Attribute_Label: PHYS_SECTION
Attribute_Definition: Name of physiographic section containing watershed
Attribute_Definition_Source: PA DCNR
Attribute:
Attribute_Label: PHYS_PROVINCE
Attribute_Definition: Name of Physiographic Province containing watershed
Attribute_Definition_Source: PA DCNR
Attribute:
Attribute_Label: PHYS_CODE
Attribute_Definition: Code corresponding to Physiographic Section
Attribute_Definition_Source: PADEP
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Eastern Lake Section
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: Mountainous High Plateau Section
Enumerated_Domain_Value_Definition: Lowland and Intermediate Upland Section
Attribute:
Attribute_Label: SLOPECLASS
Attribute_Definition: Slope Classification
Attribute_Definition_Source:
Based on PADEM (30-meter DEM layer) classifies median slope in polygon
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: low - less than 1 percent slope
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: medium - between 1 percent and 3 percent slope
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition: high - greater than 3 percent median slope
Attribute:
Attribute_Label: DISTCLASS
Attribute_Definition:
Disturbance classification indicating level of disturbance in watershed based on palcurb layer (Land cover,urbanization). Disturbed areas are areas of human activity. All suburban and urban areas from land cover and urbanization grid are considered disturbed as are areas with perennial and annual herbaceous land cover (i.e. farmland)
Attribute_Definition_Source: PA GAP project
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Low - less than 25 percent disturbance
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: Medium - between 25 percent and 75 percent disturbed
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition: High - greater than 75 percent disturbed
Overview_Description:
Entity_and_Attribute_Overview:
Table include system-used attributes and other items specified in Detailed Description
Entity_and_Attribute_Detail_Citation: See detailed description of PA GAP Analysis Project.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Pennsylvania Spatial Data Access (PASDA)
Contact_Address:
Address_Type: mailing address
Address: Land and Water Building
City: University Park
State_or_Province: PA
Postal_Code: 16802
Country: USA
Contact_Electronic_Mail_Address:pasda@psu.edu
Distribution_Liability:
The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.