ERDAS Imagine 8.5 is used as the Land Cover of Illinois 1999-2000's main image processing software.
Additional information about the Erdas Imagine .img formats can be found at: <http://www2.erdas.com/SupportSite/documentation/files/erdas7xfiles.pdf>
Additional information about EarthSat Inc's ortho-rectified GeoCover Stock used to georegister the Illinois Gap Analysis Layer can be found at: <http://www.geocover.com/>.>
Satellite images are georeferenced and identified by path and row.
NOTE: The publication dates listed for the satellite imagery may or may not represent the actual date that the satellite acquired the ground data.
Any hardcopies utilizing IDNR/INHS/ISGS data sets shall clearly indicate their source. The following source citation must be included: "Source: Illinois Department of Natural Resources, Illinois Natural History Survey, Illinois State Geological Survey, Illinois Department of Agriculture, United States Department of Agriculture National Agricultural Statistics Service's 1:100 000 Scale Land Cover of Illinois 1999-2000, Raster Digital Data, Version 2.0, September 2003."
If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent INHS/ISGS/IDNR data sets, nor to imply that changes they made were approved by Illinois Natural History Survey, Illinois State Geological Survey, or the Illinois Department of Natural Resources.
These data are not to be used for commercial profit.
Classification accuracy is generally between 85% to 95% correct for agricultural-related land cover categories.
Land cover codes have been reviewed by INHS, ISGS, IDNR, and NASS experts and are believed to be "good" at the time of satellite over flight.
Agricultural land cover names were conceived by the National Agriculture Statistics Service.
For a complete list of attributes, see the Data Dictionary located in the Entity and Attribute Information section of this metadata.
This map has not been quantitatively assessed for accuracy, but the goal of the final product is to be 80% accurate for each category.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Additional information about Landsat 5 and Landsat 7 satellite imagery can be obtained from the United States Geological Survey (USGS) EROS Data Center.
Data Dictionary: Illinois Department of Natural Resources, Illinois Natural History Survey, Illinois State Geological Survey,
Illinois Department of Agriculture, United States Department of Agriculture National Agricultural Statistics Service 1:100 000 Scale
Land Cover of Illinois 1999-2000, Raster Digital Data, Version 2.0, September 2003.
LCOI_99-00b.VAT:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC
1 VALUE 4 10 B -
5 COUNT 4 10 B -
9 RED 8 12 F 3
17 GREEN 8 12 F 3
25 BLUE 8 12 F 3
33 CLASS_NAMES 128 128 C 0
161 OPACITY 8 12 F 3
VALUE
Attribute Definition: A numeric code associated with each land cover
category.
Attribute Definition Source: User
Attribute Domain Values:
Range Domain: > 0
COUNT
Attribute Definition: The count of the number of 30-meter pixels in
the data set that are associated with the
entry in the VALUE column.
Attribute Definition Source: User
Attribute Domain Values:
Range Domain: > 0
RED
Attribute Definition: The brightness value
Attribute Definition Source: ERDAS
Attribute Domain Values:
Range Domain: > 0 < 255
GREEN
Attribute Definition: The brightness value
Attribute Definition Source: ERDAS
Attribute Domain Values:
Range Domain: > 0 < 255
BLUE
Attribute Definition: The brightness value
Attribute Definition Source: ERDAS
Attribute Domain Values:
Range Domain: > 0 < 255
CLASS_NAMES
Attribute Definition: Land cover classifications. This classification
represents the LCOI_99-00 classification values and categories. The
first name in capital letters is a Level 1
classification, representing major land classes.
The second name represents the land cover of
Illinois, 99-00 inventory (a pseudo-Level 2).
Attribute Definition Source: User
Attribute Domain Values:
Enumerated Domain:"0" = Background
"11" = AGRICULTURAL LAND: Corn
"12" = AGRICULTURAL LAND: Soybeans
"13" = AGRICULTURAL LAND: Winter Wheat
"14" = AGRICULTURAL LAND: Other Small Grains and Hay
"15" = AGRICULTURAL LAND: Winter Wheat/Soybeans
"16" = AGRICULTURAL LAND: Other Agriculture
"17" = AGRICULTURAL LAND: Rural Grassland
"21" = FORESTED LAND: Upland
"25" = FORESTED LAND: Partial Canopy/Savanna Upland
"26" = FORESTED LAND: Coniferous
"31" = URBAN AND BUILT-UP LAND: High Density
"32" = URBAN AND BUILT-UP LAND: Low/Medium Density
"35" = URBAN AND BUILT-UP LAND: Urban Open Space
"41" = WETLAND: Shallow Marsh/Wet Meadow
"42" = WETLAND: Deep Marsh
"43" = WETLAND: Seasonally/Temporarily Flooded
"44" = WETLAND: Floodplain Forest
"48" = WETLAND: Swamp
"49" = WETLAND: Shallow Water
"51" = OTHER: SURFACE WATER
"52" = OTHER: BARREN AND EXPOSED LAND
"53" = OTHER: Clouds
"54" = OTHER: Cloud Shadows
OPACITY
Attribute Definition: The measure of how opaque, or solid a color is
displayed in the raster layer.
Attribute Definition Source: ERDAS
Attribute Domain Values:
Range Domain: > 0 < 1