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NPS_IMD_Landcover_Alaska_NaturalConverted_NLCD2001v16.tif
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GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_Alaska_Albers
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20210917
12002400
20210917
12002400
National Park Service Inventory and Monitoring Division
970-225-3550
1201 Oakridge Drive, Suite 150
Fort Collins
CO
80525
US
irma@nps.gov
20210917
ArcGIS Metadata
1.0
National Park Service Inventory and Monitoring Division
970-225-3550
1201 Oakridge Drive, Suite 150
Fort Collins
CO
80525
US
irma@nps.gov
https://irma.nps.gov/DataStore/Reference/Profile/2287423
Raster Dataset
NLCD 2001 Land Cover Alaska for use in the Inventory and Monitoring Division
2021-09-17
National Park Service Inventory and Monitoring Division
GeoTIFF-format raster dataset
<a href='https://irma.nps.gov/DataStore/Reference/Profile/2287423'>NLCD 2001 natural versus converted land cover for Alaska</a> and is derived from the Alaska NLCD 2001 level 2 land cover dataset. For authoritative documentation see <a href='https://irma.nps.gov/DataStore/Reference/Profile/2284967'>this NPS Data Store record</a>. See the <a href='https://irma.nps.gov/DataStore/Reference/Profile/2244060'> NPS Environmental Settings protocol</a> for more information.
Landscape dynamics land cover source for the NPS Inventory and Monitoring national Environmental Settings protocol.
NPS Inventory and Monitoring Division
National Park Service Inventory and Monitoring Division
970-225-3550
1201 Oakridge Drive, Suite 150
Fort Collins
CO
80525
US
irma@nps.gov
Alaska
AK
U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D.C., National Institute of Standards and Technology
biota
ISO 19115 Topic Category
NGDA
Land Use Land Cover Theme
National Geospatial Data Asset
NGDA Portfolio Themes
Image processing
GIS
Land cover
digital spatial data
U.S. Geological Survey (USGS)
United States
U.S.
US
U.S. Department of Commerce, 1995, (Countries, dependencies, areas of special sovereignty, and their principal administrative divisions, Federal Information Processing Standard 10-4): Washington, D.C., National Institute of Standards and Technology
Alaska
Image processing
GIS
Land cover
biota
NGDA
digital spatial data
Land Use Land Cover Theme
United States
U.S.
US
AK
U.S. Geological Survey (USGS)
National Geospatial Data Asset
The National Park Service (NPS) shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics, if available, are not legal documents and are not intended to be used as such. These data are not of survey quality and not intended to be used for survey purposes. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data. The NPS gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data be directly acquired from an NPS source and not indirectly through other sources, which may have changed the data in some way. Although these data have been processed successfully on a computer system at the NPS, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data.
NPS Park Environmental Settings monitoring protocol
2018-01-01
National Park Service Natural Resource Inventory and Monitoring Division
https://irma.nps.gov/DataStore/Reference/Profile/2244060
Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270
-167
-122
40
77
ground condition
2001-01-01
1
-180.000000
180.000000
71.421539
48.338576
Manual and automated QA/QC checks on the NLCD 2001 Land Cover Alaska dataset verified the positional accuracy of the pixel grid and confirmed that all thematic attributes belonged to one of the approved NLCD classes.
This NLCD product of Alaska 2001 Land Cover layer is the version dated July 24, 2020.
A formal accuracy assessment was conducted for the NLCD 2001 Land Cover Alaska (citation 5). The overall Alaska thematic accuracy was 76.2% (s.e. 2.8%) at Level II and 83.9% (s.e. 2.1%) at Level I when agreement was defined as a match between the map label of the sampled pixel with either the primary or alternate reference label.
Conclusions drawn from this information are the responsibility of the user.
Unknown
N/A
N/A
NPS IMD Land Cover Process Step: Land cover level 2 raster was reclassified to natural versus converted to remove unclassified or No Data raster cells. In some raster datasets, the NoData value is 128. In some cases the source raster is projected to the local spatial reference respective to the geographic area of interest: Alaska = Alaska Albers Equal Area Conic (North American Datum (NAD) 1983)), Well Known ID (WKID: 3338) Standard Operating Procedure: Processing Land Cover Source Data to Derive Landscape Dynamics Metrics: Anderson Level 1 and 2 Classification, and Natural vs. Converted Land Use. Available at https://irma.nps.gov/DataStore/Reference/Profile/2244308 Data Release Report: Source data processing for the National Land Cover Dataset and the Coastal Change Analysis Program for use with Landscape Dynamics in the Environmental Settings Protocol. Available at https://irma.nps.gov/DataStore/Reference/Profile/2284967
2021-01-01
USGS National Land Cover Database
NLCD 2001 Alaska Natural Converted Classified Raster
2
104424
30.000000
161190
30.000000
1
1
0
-2232344.073754 344775.066318
-2232344.073754 2380125.066318
1494765.926246 2380125.066318
1494765.926246 344775.066318
-368789.073754 1362450.066318
NPS_IMD_Landcover_Alaska_NaturalConverted_NLCD2001v16.tif
NLCD Land Cover Layer
National Land Cover Database
Table
2
Value
Landcover Classification
NPS IMD
2
Natural - Classification combines all natural land cover classes from the modified Anderson level 2 NLCD land cover classification. Includes: Open Water, Perennial Snow/Ice, Barren Land, Deciduous Forest, Evergreen Forest, Mixed Forest, Dwarf Shrub (Alaska only), Scrub/Shrub, Herbaceous, Sedge/Herbaceous (Alaska only), Lichens, Moss (Alaska only), Woody Wetlands, Emergent Herbaceous Wetlands (Alaska only). Natural land cover classification may not include all possible NLCD level 2 classes.
NPS IMD
1
Converted - Classification combines all human-altered land cover classes from the modified Anderson level 2 NLCD land cover classification. Includes: Developed Open Space, Developed Low Intensity, Developed Medium Intensity, Developed High Intensity, Cultivated Crops, and Pasture/Hay. Converted land cover classification may not include all possible NLCD level 2 classes.
NPS IMD
Value
Integer
10
10
0
Count
A nominal integer value that designates the number of pixels that have each value in the file; histogram column in ERDAS Imagine raster attributes table
ESRI
Integer
Count
Double
19
0
0
Green
Green color code for RGB. The value is arbitrarily assigned by the display software package, unless defined by the user.
NLCD
0
100
Percentage
0.1
Green
Double
19
0
0
Blue
Blue color code for RGB. The value is arbitrarily assigned by the display software package, unless defined by the user.
NLCD
0
100
Percentage
0.1
Blue
Single
13
0
0
CLASSNAME
Landcover Classification
NPS IMD
Natural
Classification combines all natural land cover classes from the modified Anderson level 2 NLCD land cover classification. Includes: Open Water, Perennial Snow/Ice, Barren Land, Deciduous Forest, Evergreen Forest, Mixed Forest, Dwarf Shrub (Alaska only), Scrub/Shrub, Herbaceous, Sedge/Herbaceous (Alaska only), Lichens, Moss (Alaska only), Woody Wetlands, Emergent Herbaceous Wetlands (Alaska only). Natural land cover classification may not include all possible NLCD level 2 classes. Land cover class value = 2
NPS IMD
Converted
Classification combines all human-altered land cover classes from the modified Anderson level 2 NLCD land cover classification. Includes: Developed Open Space, Developed Low Intensity, Developed Medium Intensity, Developed High Intensity, Cultivated Crops, and Pasture/Hay. Converted land cover classification may not include all possible NLCD level 2 classes. Land cover class value = 1
NPS IMD
CLASSNAME
String
50
0
0
Red
Red color code for RGB. The value is arbitrarily assigned by the display software package, unless defined by the user.
NLCD
0
100
Percentage
0.1
Red
Double
19
0
0
OID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
OID
OID
4
0
0
dataset
EPSG
6.12(9.3.0.0)
Band_1
2.000000
1.000000
2
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