Hudson River Valley Gap Analysis 30m Land Cover

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Identification_Information

Citation:
Citation_Information:
Originator: Hudson River Estuary Program (HREP)
Publication_Date: 2005
Title: Hudson River Valley Gap Analysis 30m Land Cover
Geospatial_Data_Presentation_Form: raster digital data
Online_Linkage: https://cugir.library.cornell.edu/catalog/cugir-007896
Description:
Abstract: This land cover data of the Hudson River Valley (New York) has a 30m pixel resolution, and was derived from Landsat-5 satellite imagery from 1992 and 1993.
Purpose: The Hudson River Valley GAP Analysis Project (HRV-GAP) uses the New York State GAP Analysis Project (NY-GAP) database to perform analyses and answer research questions directly related to the Hudson River Valley (HRV).
Supplemental_Information: The 30 meter minimum mapping unit (mmu) land cover map for the HRV consists of 38 land cover types. The classification scheme is consistent with a modified NVCS hierarchy (Grossman et al. 1998) and can be cross-referenced with Reschke (1990) community types. It was developed for the New York State and the Hudson River Valley Gap Analysis Projects (NY-GAP, HRV-GAP). The classification scheme is based on land cover types that include alliance and super-alliance level classifications of vegetated communities, as well as more generalized classes for water, built environments, and spectral obstructions. Alliances are a physiognomically distinct group of plant associations that share dominant species. However, due to the nature of spectral data, some alliances were combined or modified to form super-alliances. As used in NY-GAP, a super-alliance is a combination of alliances with dominant species that either belong to the same genus or occur under similar environmental conditions. *** Expert opinion from the New York Natural Heritage Program staff, literature reviews, and field surveys were used to enhance and adapt the NY-GAP classification scheme for use in the HRV. Alliances and super-alliances were added or subtracted based on presence or absence in the HRV, spectral distinguishability, and importance to natural resource managers.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1992
Ending_Date: 1993
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -74.806419
East_Bounding_Coordinate: -73.241627
North_Bounding_Coordinate: 42.982985
South_Bounding_Coordinate: 40.472841
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Land cover
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: imageryBaseMapsEarthCover
Theme:
Theme_Keyword_Thesaurus: CUGIR Category
Theme_Keyword: landcover
Theme_Keyword: environment
Place:
Place_Keyword_Thesaurus: LCSH
Place_Keyword: Hudson River Valley (N.Y. and N.J.)
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Albany County
Place_Keyword: Bronx County
Place_Keyword: Columbia County
Place_Keyword: Dutchess County
Place_Keyword: Greene County
Place_Keyword: Kings County
Place_Keyword: New York County
Place_Keyword: Orange County
Place_Keyword: Putnam County
Place_Keyword: Queens County
Place_Keyword: Rensselaer County
Place_Keyword: Richmond County
Place_Keyword: Rockland County
Place_Keyword: Ulster County
Place_Keyword: Westchester County
Access_Constraints: none
Use_Constraints: none
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Leslie Zucker
Contact_Organization: Hudson River Estuary Program
Contact_Address:
Address_Type: mailing and physical
Address: 206 Fernow Hall
Address: Cornell University
City: Ithaca
State_or_Province: New York
Postal_Code: 14853
Country: USA
Contact_Voice_Telephone: 607-254-5478
Contact_Electronic_Mail_Address: laz5@cornell.edu
Browse_Graphic:
Browse_Graphic_File_Name: https://cugir-data.s3.amazonaws.com/00/78/96/preview.png
Browse_Graphic_File_Description: preview of the dataset
Browse_Graphic_File_Type: PNG

Data_Quality_Information

Attribute_Accuracy:
Attribute_Accuracy_Report: For the complete accuracy assessment report, refer to DeGloria, S.D., M. Laba, and J. Braden (2005) Hudson Valley Land Cover Map Accuracy Assessment. NY Cooperative Fish and Wildlife Research Unit, Department of Natural Resources, Cornell University, Ithaca, NY.
Logical_Consistency_Report: No information provided.
Completeness_Report: Complete coverage for the following counties: Albany, Bronx, Columbia, Dutchess, Greene, Kings, New York, Orange, Putnam, Queens, Rensselaer, Richmond, Rockland, Ulster, Westchester.
Lineage:
Process_Step:
Process_Description: Landsat-5 TM multi-spectral digital imagery provided to NY-GAP by the Multi- Resolution Land Characteristics Interagency Consortium (MRLC) was the primary source of spectral data for mapping the distribution of land cover types in the HRV. Parts of the three TM scenes were required to provide coverage of the HRV. Pre-processing of the digital imagery was conducted at the EROS Data Center under the auspices of the MRLC agreement (http://www.epa.gov/mrlc). Each scene was geo-referenced to the Universal Transverse Mercator (UTM) coordinate system, extended Zone 18 (New York Transverse Mercator, NYTM), North American Datum of 1983 (NAD83), and resampled to a 30 meter square pixel using a cubic convolution resampling algorithm. The root mean square error (RMSEx,y) resulting from the resampling process was less than 30 meters in both x and y dimensions. (Smith, C.R., S.D. DeGloria, M.E. Richmond, S.K. Gregory, M. Laba, S.D. Smith, J.L. Braden, W.P. Brown, E.A. Hill. 2001. An Application of Gap Analysis Procedures to Facilitate Planning for Biodiversity Conservation in the Hudson River Valley, Final Report, Part 1: Gap Analysis of the Hudson River Valley and Part 2: Atlas of Predicted Ranges for Terrestrial Vertebrates in the Hudson River Valley. New York Cooperative Fish and Wildlife Research Unit, Department of Natural Resources, Cornell University, Ithaca, NY.)
Process_Date: Unknown
Process_Step:
Process_Description: Converted from Esri grid .adf to .tif by CUGIR staff.
Process_Date: 20170612
Process_Step:
Process_Description: CUGIR staff created custom color table
Process_Date: 20190523

Spatial_Data_Organization_Information

Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 9244
Column_Count: 4233

Spatial_Reference_Information

Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 18
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -75.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 30.000000
Ordinate_Resolution: 30.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information

Entity_Type:
Entity_Type_Label: hrv_30m.vat
Entity_Type_Definition: Hudson River Valley 30m grid cell
Entity_Type_Definition_Source: HREP
Attributes:
Name Description Values
VALUE Pixel value representing the predominant land cover type coded values
Rowid Internal feature number. Sequential unique whole numbers that are automatically generated.
COUNT Pixel count of land cover type. 0 to unbounded
AREA Total area of land cover type, in 10,000s of square meters. 0 to unbounded
PERCENT Percentage of land cover type. 0 to 100
LAND_COVER Land cover type. See pixel values above for complete list. text
AAREPORT_CODE Accuracy Assessment Report code NA
SUBCLASS# Subclass ID NA
SUPERALLIANCE# Super-alliance ID NA

Distribution_Information

Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Albert R. Mann Library
Contact_Address:
Address_Type: mailing and physical
Address: Cornell University
City: Ithaca
State_or_Province: New York
Postal_Code: 14853
Contact_Voice_Telephone: 607-255-5406
Contact_Electronic_Mail_Address: mann-ref@cornell.edu
Distribution_Liability: Cornell University provides these geographic data "as is". Cornell University makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. Cornell University further makes no warranty either expressed or implied, regarding the condition of the product or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these files have been processed successfully on computers at Cornell University, no warranty is made by Cornell University regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoTIFF
Format_Information_Content: zipped geotiff
File_Decompression_Technique: zip
Transfer_Size: 9.69
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Digital_Form:
Digital_Transfer_Information:
Format_Name: metadata
Format_Information_Content: FGDC XML metadata
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Digital_Form:
Digital_Transfer_Information:
Format_Name: HTML metadata
Format_Information_Content: FGDC HTML metadata
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Digital_Form:
Digital_Transfer_Information:
Format_Name: OGC:WMS
Format_Information_Content: WMS, from GeoServer
Digital_Transfer_Option:
Online_Option:
Fees: None

Metadata_Reference_Information

Metadata_Date: 20190604
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Albert R. Mann Library
Contact_Address:
Address_Type: mailing and physical
Address: Albert R. Mann Library
City: Ithaca
State_or_Province: New York
Postal_Code: 14853
Country: USA
Contact_Voice_Telephone: 607-255-5406
Contact_Electronic_Mail_Address: mann-ref@cornell.edu
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time