cp_ndvi_la

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Alaska Geobotany Center
Publication_Date: 20031210
Title: cp_ndvi_la
Geospatial_Data_Presentation_Form: Fgdb raster digital data
Other_Citation_Details:
Suggested Citation: CAVM Team. 2003. Circumpolar Arctic Vegetation Map. Scale 1:7,500,000. Conservation of Arctic Flora and Fauna (CAFF) Map No. 1. U.S. Fish and Wildlife Service, Anchorage, Alaska.
Online_Linkage: \\137.229.50.172\geodata\raster\circumpolar\cp_4m.gdb
Description:
Abstract:
The normalized difference vegetation index (NDVI) is a measure of greenness. NDVI was calculated as: NDVI = (NIR - R) / (NIR + R), where NIR is the spectral reflectance in the AVHRR near-infrared channel (0.725-1.1 µm, channel 2) where light-reflectance from the plant canopy is dominant, and R is the reflectance in the red channel (0.5 to 0.68 µm, channel 1), the portion of the spectrum where chlorophyll absorbs maximally (Markon et al. 1995). The grid of NDVI values was produced from the same AVHRR data as the false-color CIR image. NDVI values are saved as scaled integers, where the NDVI value can be calculated as: NDVI=0.008(Gridvalue-127) NDVI values ranged from -0.112 to 1.000 (grid integer values 113 to 252). The final CAVM NDVI map was plotted as 8 categories that were useful in distinguishing vegetation patterns: <0.03, 0.03-0.14, 0.15-0.26, 0.27-0.38, 0.39-0.50, 0.51-0.56, 0.57-0.62, >0.62. Areas with NDVI < 0.03 are bare rock or ice. Areas with NDVI = 0.03-0.14 are very sparsely vegetated. The remaining categories were evenly divided, except for the highest NDVI categories, which were split up to distinguish very shrubby areas in the southern Arctic.
References: ESRI. 1993. Digital Chart of the World. September 1993, Ed. 1. Environmental Systems Research Institute Inc. Redlands, CA, USA.
Markon, C.J. M.D. Fleming and E.F. Binnian. 1995. Characteristics of vegetation phenology over the Alaskan landscape using AVHRR time-series data. Polar Record 31:179-190.
Purpose:
Vegetation classification for the Circumpolar Arctic Vegetation Mapping project.
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 1993
Single_Date/Time:
Calendar_Date: 1995
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.000000
East_Bounding_Coordinate: 180.000000
North_Bounding_Coordinate: 90.000000
South_Bounding_Coordinate: 31.207821
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Biota
Theme_Keyword: ImageryBaseMapsEarthCover
Theme_Keyword: Environment
Theme:
Theme_Keyword_Thesaurus: Alaska Geobotany Center
Theme_Keyword: cavm
Theme_Keyword: vegetation
Theme_Keyword: tundra
Theme_Keyword: ndvi
Place:
Place_Keyword_Thesaurus: Alaska Geobotany Center
Place_Keyword: arctic
Place_Keyword: circumpolar
Place_Keyword: alaska
Place_Keyword: canada
Place_Keyword: greenland
Place_Keyword: iceland
Place_Keyword: norway
Place_Keyword: russia
Place_Keyword: svalbard
Place_Keyword: usa
Access_Constraints: none
Use_Constraints:
Data provided by the Alaska Geobotany Center are copyright protected under the provisions of a Creative Commons Attribution-NonCommercial-ShareAlike License (<http://creativecommons.org/licenses/by-nc-sa/1.0/>). Materials may be freely downloaded, reprinted and redistributed for non-commercial use. Reproduction and redistribution of the materials on this web site, including derivative works, shall give credit to the Alaska Geobotany Center and remain subject to the above license. Any web pages that use this material shall contain a link pointing to the Alaska Geobotany Center home page (<http://www.geobotany.uaf.edu/>).
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Alaska Geobotany Center
Contact_Person: Hilmar A. Maier
Contact_Position: GIS and Remote Sensing Manager
Contact_Address:
Address_Type: physical address
Address: Alaska Geobotany Center
Address: Institute of Arctic Biology
Address: University of Alaska Fairbanks
City: Fairbanks
State_or_Province: AK
Postal_Code: 99775
Country: US
Contact_Voice_Telephone: +1.907.474.1540
Contact_Voice_Telephone: +1.907.474.2459
Contact_Voice_Telephone: +1.907.474.2460
Contact_Electronic_Mail_Address: dataManager@geobotany.org
Contact_Instructions: <http://www.geobotany.org/>
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.1850

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 8860
Column_Count: 8860
Vertical_Count: 1

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Azimuthal Equal Area
Lambert_Azimuthal_Equal_Area:
Longitude_of_Projection_Center: 180.000000
Latitude_of_Projection_Center: 90.000000
False_Easting: 0.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 1000.000000
Ordinate_Resolution: 1000.000000
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:
Detailed_Description:
Entity_Type:
Entity_Type_Label: VAT_cp_ndvi_la
Attribute:
Attribute_Label: ObjectID
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: Value
Attribute_Definition: NDVI value normalized to integer values
Attribute_Definition_Source: Alaska Geobotany Center
Attribute:
Attribute_Label: Count
Overview_Description:

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Alaska Geobotany Center
Contact_Person: Hilmar A. Maier
Contact_Position: GIS and Remote Sensing Manager
Contact_Address:
Address_Type: physical address
Address: Alaska Geobotany Center
Address: Institute of Arctic Biology
Address: University of Alaska Fairbanks
City: Fairbanks
State_or_Province: AK
Postal_Code: 99775
Country: US
Contact_Voice_Telephone: +1.907.474.1540
Contact_Voice_Telephone: +1.907.474.2459
Contact_Voice_Telephone: +1.907.474.2460
Contact_Electronic_Mail_Address: dataManager@geobotany.org
Contact_Instructions: <http://www.geobotany.org/>
Resource_Description: Downloadable Data
Distribution_Liability: Unknown
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 0.000

Metadata_Reference_Information:
Metadata_Date: 20100127
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Alaska Geobotany Center
Contact_Person: Hilmar A. Maier
Contact_Position: GIS and Remote Sensing Manager
Contact_Address:
Address_Type: physical address
Address: Alaska Geobotany Center
Address: Institute of Arctic Biology
Address: University of Alaska Fairbanks
City: Fairbanks
State_or_Province: AK
Postal_Code: 99775
Country: US
Contact_Voice_Telephone: +1.907.474.1540
Contact_Voice_Telephone: +1.907.474.2459
Contact_Voice_Telephone: +1.907.474.2460
Contact_Electronic_Mail_Address: dataManager@geobotany.org
Contact_Instructions: <http://www.geobotany.org/>
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.9.6 on Wed Jan 27 12:45:00 2010