20230322
14355600
1.0
FALSE
AKSnowDepth
001
-18701785.772800
-14468892.419500
7319285.138600
11440786.561500
1
Projected
GCS_WGS_1984
Linear Unit: Meter (1.000000)
WGS_1984_Web_Mercator_Auxiliary_Sphere
<ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.5.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem>
20260429
16274100
20260429
16350600
50000000
5000
FGDC
USWFS-STATE
Alaska
USWFS-THEME
Geospatial
Hydrology
NONE
modeled data
snow
snow depth
Esri ArcGIS 13.5.5.57366
U.S. Wildland Fire Service
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
AK Modeled Snow Depth Polygons
vector digital data
2026-04-29T00:00:00
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
GIS Specialist
PO Box 35005
Fort Wainwright
AK
99703
BLM_AK_AFS_GIS@blm.gov
US
001 907 356 5600
Contact by email.
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
1
-170
-130
71
54
2026-04-29T00:00:00
publication date
Alaska
environment
Geospatial
Hydrology
modeled data
snow
snow depth
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>These data are provided “as is” and might contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User’s intended use. The information contained in these data is dynamic and may change over time. The data are not better than the sources from which they were derived, and both scale and accuracy may vary across the data set. These data might not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate.</SPAN></P></DIV></DIV></DIV>
These data are provided “as is” and might contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User’s intended use. The information contained in these data is dynamic and may change over time. The data are not better than the sources from which they were derived, and both scale and accuracy may vary across the data set. These data might not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate.
None, these data are considered public domain.
This dataset is intended to help determine the date when to start and when to stop the calculation of fire weather indices. Snow depth is reported in inches.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This dataset is intended to help determine the date when to start and when to stop the calculation of fire weather indices. Snow depth is reported in inches. NASA SPoRT Land Information System (LIS) Alaska Snow Depth raster data for, 0600 or 0900 UTC from is downloaded and reclassified. Depths greater than 60 inches are assigned the same value (60+).</SPAN></P></DIV></DIV></DIV>
NASA Short-term Prediction Research and Transition Center (SPoRT), U.S. National Ice Center, U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
For more information, see https://weather.ndc.nasa.gov/sport/case_studies/lis_AK.html.
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
GIS Specialist
PO Box 35005
Fort Wainwright
AK
99703
BLM_AK_AFS_GIS@blm.gov
US
001 907 356 5600
Contact by email.
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
Enterprise Geodatabase Feature Class
https://fire.ak.blm.gov/arcgis/rest/services/MapAndFeatureServices
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
GIS Specialist
PO Box 35005
Fort Wainwright
AK
99703
BLM_AK_AFS_GIS@blm.gov
US
001 907 356 5600
Contact by email.
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
https://fire.ak.blm.gov/arcgis/rest/services/MapAndFeatureServices
https://geo.nsstc.nasa.gov/SPoRT/outgoing/cbb/alaska/geotiff/
dataset
EPSG
6.18.3(9.3.1.2)
23552
Simple
FALSE
23552
TRUE
FALSE
AK Modeled Snow Depth
Feature Class
23552
AK Modeled Snow Depth geometry and attributes.
AFS
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
SHAPE
SHAPE
Geometry
8
0
0
Feature geometry.
Esri
Coordinates defining the features.
GRIDCODE
gridcode
Integer
4
10
0
Snow depth range, in inches.
NASA
0
60
SNOWSTATUS
SnowStatus
String
255
0
0
Description of gridcode.
AFS
Minimal snow
Minimal snow
USWFS
Up to 1 inch.
Up to 1 inch.
USWFS
Between 1 and 2 inches.
Between 1 and 2 inches.
USWFS
Between 2 and 4 inches.
Between 2 and 4 inches.
USWFS
Between 4 and 8 inches.
Between 4 and 8 inches.
USWFS
Between 8 and 12 inches.
Between 8 and 12 inches.
USWFS
Between 12 and 24 inches.
Between 12 and 24 inches.
USWFS
Between 24 and 36 inches.
Between 24 and 36 inches.
USWFS
Between 36 and 48 inches.
Between 36 and 48 inches.
USWFS
Greater than or equal to 60 inches.
Greater than or equal to 60 inches.
USWFS
STATUSDATE
StatusDate
String
255
0
0
Date the data are valid for.
AFS
Date, as text.
SHAPE.AREA
SHAPE.AREA
Double
0
0
0
Feature area.
Esri
Positive real numbers that are automatically generated.
SHAPE.LEN
SHAPE.LEN
Double
0
0
0
Feature length.
Esri
Positive real numbers that are automatically generated.
AK Modeled Snow Depth geometry and attributes.
20260429
Last metadata review date: 20230322
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>These data are provided “as is” and might contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User’s intended use. The information contained in these data is dynamic and may change over time. The data are not better than the sources from which they were derived, and both scale and accuracy may vary across the data set. These data might not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate</SPAN></P></DIV></DIV>
None, these data are considered public domain.
Unknown, errors likely exist in the dataset.
Unknown, errors likely exist in the dataset.
Data coverage is restricted to Alaska PSA boundaries.
Unknown, errors likely exist in the dataset.
https://nssrgeo.ndc.nasa.gov/SPoRT/modeling/lis/alaska/geotiff/
NASA SPoRT Land Information System (LIS) Alaska Snow Depth raster data for 0600 or 0900 UTC from is downloaded and reclassified. Depths greater than 60 inches are assigned the same value (60+). Raster data are clipped using the Alaska Predictive Services boundaries and converted to polygons.
2026-04-29T00:00:00
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
GIS Specialist
PO Box 35005
Fort Wainwright
AK
99703
BLM_AK_AFS_GIS@blm.gov
US
001 907 356 5600
Contact by email.
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
GIS Specialist
PO Box 35005
Fort Wainwright
AK
99703
BLM_AK_AFS_GIS@blm.gov
US
001 907 356 5600
Contact by email.
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)
U.S. Department of the Interior, U.S. Wildland Fire Service, Alaska (AFS)