Land Use and Land Cover, Cayuga Lake watershed, 2004

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Identification_Information

Citation:
Citation_Information:
Originator: Cayuga Lake Watershed Network
Originator: Nicholas Hollingshead, GIS Analyst
Publication_Date: 20060901
Title: Land Use and Land Cover, Cayuga Lake watershed, 2004
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: https://cugir.library.cornell.edu/catalog/cugir-008011
Description:
Abstract: The dataset depicts land use/cover in the Cayuga Lake Watershed. This geographic dataset was constructed using a multi-resource approach. To map small scale land uses, high resolution aerial imagery available from the New York State Digital OrthoimageryProgram (NYSDOP) was interpreted by a trained GIS analyst according to a multi-tiered classification scheme similar to that used by Tompkins County, New York to map land use in 1995. To map large scale land uses and land cover types, two sets of Landsat Thematic Mapper images were analyzed. One set was analyzed by the USDA National Agricultural Statistics Service Research and Development Division, and published as the Cropland Data Layer for the state of New York. To distinguish between different forest cover types, Landsat-5 TM images were radiometrically and geographically corrected, and analyzed using a supervised classification procedure. These separate layers were overlayed to produce the final vector layer.
Purpose: This geographic dataset was developed by the Cayuga Lake Watershed Network as part of a larger project, in conjunction with Dr. Douglas Haith and Cornell University, to model nutrient loading in the Cayuga Lake watershed. The model used is the Generalized Watershed Loading Function (Haith and Shoemaker, 1987). Haith, D.A. and L.L. Shoemaker, 1987. Generalized Watershed Loading Functions for Stream Flow Nutrients. Water Resources Bulletin, 23(3), pp. 471-478.
Supplemental_Information: Additional documentation is available at <http://hdl.handle.net/1813/12858>
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2002
Ending_Date: 2004
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -76.992453
East_Bounding_Coordinate: -76.145783
North_Bounding_Coordinate: 42.969066
South_Bounding_Coordinate: 42.253419
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: land use
Theme_Keyword: land cover
Theme_Keyword: LULC
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: planningCadastre
Theme_Keyword: environment
Theme:
Theme_Keyword_Thesaurus: CUGIR Category
Theme_Keyword: landcover
Theme_Keyword: property
Theme_Keyword: environment
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: New York State
Place_Keyword: Cayuga County
Place_Keyword: Cortland County
Place_Keyword: Schuyler County
Place_Keyword: Seneca County
Place_Keyword: Tompkins County
Place_Keyword: Tioga County
Place_Keyword: Cayuga Lake Watershed
Access_Constraints: None
Use_Constraints: Data users are responsible for the use and interpretation of the provided data. The geographic dataset is provided "as is" to end users. When using this dataset, please cite the appropriate sources, including the Cayuga Lake Watershed Network, the NYSDOP, and the USDA NASS Research and Development Division.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Cayuga Lake Watershed Network
Contact_Person: Ruthanna Hawkins
Contact_Position: Watershed Educator
Contact_Address:
Address_Type: mailing and physical
Address: 8408 Main Strreet
Address: PO Box 303
City: Interlaken
State_or_Province: New York
Postal_Code: 14847
Contact_Voice_Telephone: 607-532-4104
Contact_Electronic_Mail_Address: w_educator@cayugalake.org
Browse_Graphic:
Browse_Graphic_File_Name: https://cugir-data.s3.amazonaws.com/00/80/11/preview.png
Browse_Graphic_File_Description: preview of the dataset
Browse_Graphic_File_Type: PNG
Cross_Reference:
Citation_Information:
Originator: Tompkins County ITS GIS Division
Originator: Tompkins County Planning Department
Publication_Date: 2000
Title: Tompkins County Land Use and Land Cover 1995
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: http://cugir.mannlib.cornell.edu/bucketinfo.jsp?id=59

Data_Quality_Information

Attribute_Accuracy:
Attribute_Accuracy_Report: unknown
Logical_Consistency_Report: unknown
Completeness_Report: The polygons cover all areas within 2 km of the Cayuga Lake Watershed.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: NYS Cyber Security and Critical Infrastructure Coordination
Publication_Date: 2003 and 2004
Title: Cayuga, Cortland, Schuyler, Seneca, Tioga, and Tompkins County Orthoimagery
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: NYS Digital Orthoimagery Program (NYSDOP)
Issue_Identification: 2002 and 2003
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2002
Ending_Date: 2003
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: NYSDOP
Source_Contribution: High-resolution aerial imagery used as the basis for interpretation of small extent land use and land cover types.
Source_Information:
Source_Citation:
Citation_Information:
Originator: United States Department of Agriculture (USDA)
Originator: National Agricultural Statistics Service (NASS)
Originator: Research and Development Division, Geospatial Information Branch, Spatial Analysis Research Section (SARS)
Publication_Date: 20060101
Title: New York Cropland Data Layer, 2002
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: USDA-NASS Cropland Data Layer
Issue_Identification: New York, 2002
Source_Scale_Denominator: 100000
Type_of_Source_Media: CD-ROM
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20020504
Ending_Date: 20020912
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: NASS CDL
Source_Contribution: Agricultural land cover types
Source_Information:
Source_Citation:
Citation_Information:
Originator: NASA/USGS
Publication_Date: unknown
Title: Landsat-5 Thematic Mapper
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20040809
Ending_Date: 20041028
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Landsat
Source_Contribution: Forest/brush cover types
Process_Step:
Process_Description: Phase 1: mapping of small extent land uses. NYSDOP imagery for all six counties of the Cayuga Lake watershed was downloaded from the New York State Geographic Information Clearinghouse. Due to the large number of image tiles, the images were added to an ArcGIS Geodatabase Image Catalog. In ESRI ArcGIS 9.1, the imagery was visually analyzed. All land use areas within the Cayuga Lake watershed that could be interpreted as Commercial, Disturbed, Industrial, Institutional, Outdoor Recreation, Residential, Transportation, Water, and Agricultural - Farmsteads land use or cover types were digitized. The aerial imagery was generally observed and digitized at a scale of 1:1,800 to identify the locations of these land uses. No minimum mapping unit was applied during this process.
Source_Used_Citation_Abbreviation: NYSDOP
Process_Date: unknown
Process_Step:
Process_Description: Phase 2: NASS CDL processing. The NASS CDL was prepared for integration with the other land use and cover type data. First, the NASS CDL was georectified to the NYSDOP to ensure proper alignment of the data sources. Areas classified as "Cloud" were merged with their neighboring areas with which they shared the longest common border length. To eliminate small misclassified areas, all unique areas less than 0.27 hectares in extent, the equivalent of three Landsat image pixels, were merged with their neighbors with which they shared the longest common border.
Source_Used_Citation_Abbreviation: NASS CDL
Process_Date: unknown
Process_Step:
Process_Description: Phase 3: Forest/brush cover type mapping. To map the extent of the different Forest/Brush cover types, Landsat 5 images from August 9, 2004 and October 28, 2004 were processed and analyzed using a supervised classification. First, the images were geometrically and radiometrically corrected. Each image was georectified to the NYSDOT aerial imagery to ensure proper alignment of the data layers. A "destriping" algorithm available in the Erdas Imagine 9.0 software system (Leica-Geosystems, Norcross, GA) was used to eliminate the presence of systematic spectral variations in the Landsat images which can interfere with image classification. Image "striping" is an artifact of inherit variability in the sensors onboard the Landsat-5 satellite. A two step supervised classification process was used to identify areas of forest cover. First, a training set was developed that included samples for Crops, Pasture, Brush, Deciduous Forest, Mixed Forest, Pine Forest, and Impervious/Cleared cover types. A maximum likelihood classifier was used to classify the image. Due to overrepresentation of the Mixed Forest class in areas of Pine Forest, a second supervised classification process was completed on a refined training set using the maximum likelihood classifier. The resulting Pine Forest class areas more accurately represented the extent of pine in the watershed. The Pine Forest areas were extracted from the second classification and overlaid on the area of Pine Mix in the first classification process to create the final supervised classification layer. Areas less than 0.27 hectares in extent were merged with adjacent areas with which they shared the longest common borders.
Source_Used_Citation_Abbreviation: Landsat
Process_Date: unknown
Process_Step:
Process_Description: Phase 4: Land use and vegetative forest cover type merging. In the final series of steps, the data layer of small extent land uses, the modified USDA NASS CDL, and the forest cover type data layer were merged. First, the areas of the USDA NASS CDL classified as "Woodland" were reclassified according to the forest cover type data layer derived from the Landsat TM imagery. Next, the data layer of small extent land uses was overlaid on this. For the GWLF model, it is necessary to have corresponding soil characteristic information for all land areas. Therefore, areas were reclassified as Water if they were identified as Water in the Soil_Characteristics data layer. All areas less than 10 m2 were merged with adjacent polygons with which they shared the longest common border. The Land Use/Cover layer was then clipped to the boundary of the Cayuga Lake watershed.
Process_Date: unknown

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: 200201

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: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information

Entity_Type:
Entity_Type_Label: CLWN_LULC
Entity_Type_Definition: Cayuga Lake Watershed Network land use/cover class
Entity_Type_Definition_Source: Cayuga Lake Watershed Network
Attributes:
Name Description Values
LU_code Land use/cover code colon-delimited string of LU_1, LU_2, LU_3, and modifier codes
LU_1 Primary land use/cover code single-character code
LU_2 Secondary land use/cover code single-character code
LU_3 Tertiary land use/cover code single-character code
LU_1_text Primary land use/cover name text string
LU_2_text Secondary land use/cover name text string
LU_3_text Tertiary land use/cover name text string
Mod_text Land use modifier name text string
Modifier Land use modifier code singe-character code
CN_code a variant of the LU_code text string
Descr Description of the land cover/use text string
NASS_class Land/cover class name, when derived from NASS CDL NASS CDL class names
NASSDeriv yes = derived from NASS CDL data text
PhotoDeriv yes = derived from NYSDOP imagery text string
Perimeter perimeter of the polygon, in meters positive real numbers
Area area of the polygon, in meters positive real numbers

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: Shapefile
Format_Information_Content: zipped shapefile
File_Decompression_Technique: zip
Transfer_Size: 36.20
Digital_Transfer_Option:
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Computer_Contact_Information:
Network_Address:
Digital_Form:
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Format_Name: metadata
Format_Information_Content: FGDC XML metadata
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Format_Name: HTML metadata
Format_Information_Content: FGDC HTML metadata
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Digital_Form:
Digital_Transfer_Information:
Format_Name: KML
Format_Information_Content: generated KML, via WFS
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Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoJSON
Format_Information_Content: generated GeoJSON, via WFS
Digital_Transfer_Option:
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Digital_Form:
Digital_Transfer_Information:
Format_Name: OGC:WMS
Format_Information_Content: WMS, from GeoServer
Digital_Transfer_Option:
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Fees: None

Metadata_Reference_Information

Metadata_Date: 20190524
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