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Identification Information
Title: Tongass National Forest, SizeDensity, 2014
Originator: USFS, Tongass National Forest, Tongass Ecology Staff, Tongass Ecology Staff
Publication Date: 20130531
Website URL: http://seakgis.alaska.edu/data/SizeDensity.zip
Resource(Server) URL: http://seakgis03.alaska.edu/arcgis/rest/services/USFS/USFS_SizeDensity/MapServer
Abstract: This data represents the output of the Size Density Model which classifies vegetation into 7 categories. This dataset is a derived data set using Tongass National Forest Covertypes, Tongass National Forest Hydric Soils, NWI Hydric Soils, and Aspect. They NWI Hydric soils were only used where the forest had not mapped soils such as Private Lands and Wilderness areas.There is a white paper that should go along with this metadata. T:\FS\Reference\GeoTool\r10_tnf\Metadata\SizeDensity\final_SizeDensity_white_paper_03262009.pdf
Purpose: The dataset is used to discriminate among differences in forest structure, including those structures associated with age and site conditions. This feature class is mainly used for deer model efforts, and recognize that the information is as good as the existing vegetation and soils data where available.
Progress: Completed
Frequency: As needed
Time Period of Content
Date Range
Begin Date: 20130531
End Date: 20130531
Currentness: publication date
West Bounding Longitude: -139.943595
East Bounding Longitude: -129.480075
North Bounding Latitude: 60.122850
South Bounding Latitude: 54.544548
Zoom to the resource envelope
Point of Contact
Organization: USFS Tongass National Forest
Person: Tongass Ecology Staff
Contact Position: Ecology Program Manager
Address Type: mailing and physical
Address: 648 Mission Street, Federal Building
City: Ketchikan
State: Alaska
Postal Code: 99901
Telephone: 907-225-3101
Fax: 907-228-6215
Email: gisr10tongassnf@fs.fed.us
Browse Graphic
Browse Graphic URL: http://seakgis.alaska.edu/data/thumbnails/SizeDensity.jpg
Browse Graphic Caption: Regional overview of the dataset.
Browse Graphic Type: JPEG
Constraints
Access: Other restrictions.
Use: This data represents the output of the Size Density Model which classifies vegetation into 7 categories. This feature class is mainly used for deer model efforts, and recognize that the information is as good as the existing vegetation and soils data where available.
Theme Keywords
Theme Reference: None
Theme Topics: Planning, Biota, Size Density Model, veg_code, Forest Composition, SD7, Vegetation Classes, Structure, Strata, 1954, POG
Keywords
Theme Reference: ISO 19115 Topic Categories
Theme Keywords: planningCadastre, biota
Place Keyword Thesaurus: None
Place Keyword: Tongass National Forest, Alaska, Southeast Alaska
Data Quality Information
Logical Consistency Report: When considering using for analysis, please utilize this feature with caution, as this layer has been not been thoroughly checked for gaps, slivers, overlaps. It has been cleaned to the best of our ability during the building process. There are slivers and gaps in the original Covertype layer, and these have not been cleaned-up, and may reflect those types of anomolies.
Completeness Report: Not tested. No report available.
Processing Steps
Step 1 Process Description: Used the updated Covertype from 5/2013, TNF Soils, NWI Hydric soils where the forest has not coverage, Lakes from the SeakHydro data set, and the newest apsect layer from the 20m dems. Various overlaying and quering routines were used to derive Size Density Classes.
Step 1 Process Date: 20130501
Step 2 Process Description: FeatureClassToFeatureClass "Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG" "Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SizeDensity" SizeDensity # "ACCOMPYEAR "ACCOMPYEAR" true true false 2 Short 0 4 ,First,#,Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG,ACCOMPYEAR,-1,-1;CUT_AGE "CUT_AGE" true true false 2 Short 0 4 ,First,#,Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG,CUT_AGE,-1,-1;VEGCODE "VEGCODE" true true false 4 Text 0 0 ,First,#,Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG,VEGCODE,-1,-1;VOLSTRATA "VOLSTRATA" true true false 1 Text 0 0 ,First,#,Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG,VOLSTRATA,-1,-1;VOLSTRATA54 "VOLSTRATA54" true true false 1 Text 0 0 ,First,#,Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG,VOLSTRATA54,-1,-1;GLOBALID "GLOBALID" true false false 38 Guid 0 0 ,First,#,Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG,GLOBALID,-1,-1;GISACRES "GISACRES" true true false 8 Double 8 38 ,First,#,Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG,GISACRES,-1,-1;SHAPE_AREA "SHAPE_AREA" false false true 0 Double 0 0 ,First,#,Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG,SHAPE.AREA,-1,-1;SHAPE_LEN "SHAPE_LEN" false false true 0 Double 0 0 ,First,#,Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SIZEDENSITY_DEFRAG,SHAPE.LEN,-1,-1" #
Step 2 Process Date: 20131201
Step 3 Process Description: AddSpatialIndex "Database Connections\S_R10_TNF_[G_R10_TNF]_Proxy_idb.mci.sde\S_R10_TNF.SizeDensity\S_R10_TNF.SizeDensity" 1700 144500 0
Step 3 Process Date: 20131201
Spatial Reference Information
Geodetic Model
Horizontal Datum Name: D North American 1983
Ellipsoid Name: GRS 1980
Semi-major Axis: 6378137.0
Denominator of Flattening Ratio: 298.257222101
Distribution Information
Distribution Liability: The USDA Forest Service makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy, reliability, completeness or utility of these geospatial data, or for the improper or incorrect use of these geospatial data. These geospatial data and related maps or graphics are not legal documents and are not intended to be used as such. The data and maps may not be used to determine title, ownership, legal descriptions or boundaries, legal jurisdiction, or restrictions that may be in place on either public or private land. Natural hazards may or may not be depicted on the data and maps, and land users should exercise due caution. The data are dynamic and may change over time. The user is responsible to verify the limitations of the geospatial data and to use the data accordingly.
Organization: USFS Tongass National Forest
Person: Gabi Bosch
Contact Position: GIS Database Administrator
Address Type: mailing
Address: PO Box 309
City: Petersburg
State: Alaska
Postal Code: 99833
Telephone: 907-772-3841
Fax: 907-772-5895
Email: gbosch@fs.fed.us
Metadata Reference Information
Metadata Creation Date: 20141210
Organization: USFS Tongass National Forest
Person: Nida Crumley
Contact Position: GIS Database Administrator
Address Type: mailing and physical
Address: 204 Siginaka Way
City: Sitka
State: Alaska
Postal Code: 99835
Telephone: 907-747-6671
Fax: 907-747-4331
Email: ncrumley@fs.fed.us
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
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