USDA FS Inventoried Roadless Areas in New Mexico, Sept. 2000
Metadata from the RGIS Metadata Repository
Identification Information
- Title USDA FS Inventoried Roadless Areas in New Mexico, Sept. 2000
- Date 2009-04-08
- Date Type Publication
- Cited Responsible Party
-
- Organization Name USDA Forest Service - Geospatial Service and Technology Center
(GSTC)
- Role identify
- Presentation Form vector digital data
- Abstract This dataset contains all National Forest Inventoried Roadless Areas (IRAs)
for New Mexico. The IRA data was originally submitted to GSTC by all national
forests through their Regional Offices for the Forest Service's Roadless Area
Conservation Initiative. Unknown The data was consolidated at the GSTC and used in
the Draft Environment Impact Statement. Between the draft and final stages of the
Environmental Impact Statement, the data was updated by the forests to reflect any
corrections to Inventoried Roadless Areas that were based on their existing forest
plan. The data was also supplemented to include Special Designated Area information
and to include Inventoried Roadless Areas within Special Designated Areas. The data
was resubmitted to the GSTC on July 21, 2000 for consolidation and the completed
coverage was used in the Roadless Area Conservation Final Environmental Impact
Statement. Unknown IRAs are based on completed forest plans, forest plans in
revision where the agency has established an inventory (this information should be
available in Appendix C of most forest plans), or other assessments that are
completed and adopted by the agency. RARE II information was used in cases where a
forest does not have a more current roadless inventory, which was established using
RARE II information.
- Purpose The purpose of this spatial data set is to show where the Inventoried Roadless
Areas are located. The EIS analysis team used this spatial data to assess the
impacts of roadless area alternatives on Forest Service policies, use of the
National Forests and the surrounding environment. It was used for analysis in
combination with national characterization layers, such as ambient human population,
forest mortality risk to insects and diseases, current land cover types, and others.
All of these datasets are coarse resolution. The public also had a need to know
where IRAs were located in their area and across the nation. The data was used to
create a set of detailed maps published both on the web and in hardcopy form,
(Volume2, Roadless Area Conservation EIS).
- Supplemental Information All of the following editing processes were performed using ARC/INFO software.
Unknown The IRA data was originally submitted to GSTC on December 3, 1999 for the
Draft Environmental Impact Statement. The data was submitted in ARC/INFO export
format (.e00), in most cases as individual national forest coverages, but in some
cases together with other national forests. The original datasets submitted were
derived from a variety of original source manuscripts, most IRA data had a scale of
1:24,000. Some datasets were of smaller scale, typically 1:126,720. Each national
forest was originally compiled at a different time, from different source material,
using various methods. Region 5 submitted one file, which included all national
forests in that region (primarily the state of California). In these instances,
individual coverages were extracted by national forest administrative unit, and
edited separately. All data was imported, projected to Albers and audited to check
for INFO item consistency. Unnecessary features were removed and label errors
removed. Unknown Each national forest dataset was spatially edgematched to a
national forest boundary dataset compiled at GSTC for this purpose, and attribute
information was added or corrected. It was GSTC's intent to change the original data
as little as possible, altering the geometry only as necessary to fit the National
Forest Boundary coverage, and editing attributes only for consistency or where
apparent errors occurred. Edgematched data to National Forest Boundary coverage by ?
1)UnknownUnknownUnknownUnknown intersected the IRA and the NF boundary coverages
using the UNION command with a fuzzy tolerance of 1.5 map units (meters)
2)UnknownUnknownUnknownUnknown deleted polygons that extended beyond NF boundary as
long as they appeared to be sliver polygons created by union
3)UnknownUnknownUnknownUnknown deleted/absorbed polygons that did not extend to NF
boundary by eliminating all interior polygons less than 5 acres in size that had no
IRA category value or NF ownership status using ELIMINATE command
4)UnknownUnknownUnknownUnknown merged remaining polygon undershoots using the MERGE
command via manual editing 5) conducted final quality assessment to check all work -
this consisted of running acreage calculations for polygons before and after the
edgematching process; all differences of 100 acres or greater were checked on screen
and corrected if necessary; acreage calculations were run again after corrections
were made to ensure there were no major changes (in some cases, changes were
necessary after verifying with forest personnel that an error in the original data
existed); a query was run on all coverages which resulted in a report showing
frequency of polygons that had no ownership item and no IRA category - these were
checked visually using hard copy maps and phone calls to forests, if necessary, to
verify what the polygons in question were; all IRA coverages were also checked
visually on the screen to make sure there were no additional errors. Unknown
Regional coverages were created by first appending the completed individual national
forest IRA coverages into administrative regional coverages, using the APPEND
command with the polygon option. This resulted in seven regional coverages for
Regions: 1 (Northern), 2 (Rocky Mountain), 3 (Southwestern), 4 (Intermountain), 5
(Pacific Southwest), 6 (Pacific Northwest), 8 (Southern), and 9 (Eastern). These
seven regional coverages were then appended into the national coverage, again, using
the APPEND command. Unknown The resulting national coverage was automatically
edited, using the CLEAN command, with a fuzzy tolerance of 1.5 meters. This removed
geometric errors, and rebuilt topology. The coverage was then reprojected from
Albers to decimal degrees for consistency with all other coverages used for analysis
work. Unknown Between the draft and final stages of the Environmental Impact
Statement, the data was updated by the forests to reflect any corrections to
Inventoried Roadless Areas that were based on their existing forest plan. The data
was also updated to include Special Designated Area information and to include
Inventoried Roadless Areas within Special Designated Areas. After these updates were
made the data was resubmitted to the GSTC on July 21, 2000 for consolidation.
Unknown The final consolidation of the national IRA coverage was accomplished at the
GSTC with the benefit of having one representative from each region to assist with
quality control. All the completed regions were appended together into the national
coverage and reprojected from Albers to decimal degrees for analysis and display in
the Roadless Area Conservation Environmental Impact Statement. The IRAs only were
selected from national coverage to make this dataset. Unknown ***** Spatial
Reference Information (Beg) ***** Projection Parameters: Decimal Degrees NAD83
Spatial Information: Vector Scale of original/hardcopy map: 1:24,000 to 1:198,000
Feature Type: Polygon Attributes: ITEM NAME WIDTH OUTPUT TYPE DECIMAL AREA 8 18 F 5
PERIMETER 8 18 F 5 IRA_USA# 4 5 B Unknown IRA_USA-ID 4 5 B Unknown REGION 2 2 I
Unknown FOREST 40 40 C Unknown STATE 2 2 C Unknown NAME 80 80 C Unknown CATEGORY 4 4
C Unknown ACRES 16 16 N 5 Definitions: CATEGORY 1B = Inventoried Roadless Areas
where road construction and reconstruction is prohibited. 1B-1 = Inventoried
Roadless Areas that are recommended for wilderness designation in the forest plan
and where road construction and reconstruction is prohibited. 1C = Inventoried
Roadless Areas where road construction and reconstruction is not prohibited. Unknown
***** Spatial Reference Information (End) *****
- Status Complete
- Point of Contact
-
- Individual Name Dan Thompson
- Organization Name
- Position Name
- Role Point of contact
- Voice (801) 975-3441
- Facsimile (801) 975-3478
- Address
-
- Delivery Point 2222 West 2300 South
- City Salt Lake City
- Administrative Area UT
- Postal Code 84119
- Country USA
- Electronic Mail Address dthompson01@fs.fed.us
- Maintenance and Update Frequency Unknown
- Descriptive Keywords national inventoried roadless areas, National Forests
- Access Constraints User needs to exercise caution regarding the spatial accuracy of these data. The
source scales can vary. External features cannot be expected to align. The National
Forest Planning Record Documents (Appendix C), other assessments adopted by the USDA
Forest Service, or RARE II documents, are ultimately the official version of inventoried
roadless areas.
- Use Constraints Data may be viewed and used by any and all entities upon request. However, data
should not be changed or modified by anyone other than GSTC. The USDA Forest Service
does not guarantee the accuracy of this data.
- Language English
- Topic Category boundaries
- Extent
-
- Geographic Bounding Box
-
- West Bound -109.049561931296
- East Bound -104.312432213415
- North Bound 36.9940979938969
- South Bound 31.3828717165223
- Temporal Extent
-
- Beginning Position 1999-12-03
- Ending Position 2000-09-15
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Distribution Information
- Distributor
-
- Individual Name
- Organization Name Earth Data Analysis Center
- Position Name Clearinghouse Manager
- Role Point of contact
- Voice 505-277-3622 ext. 230
- Facsimile 505-277-3614
- Address
-
- Delivery Point MSC01 1110
- Delivery Point 1 University of New Mexico
- City Albuquerque
- Administrative Area NM
- Postal Code 87131-0001
- Country USA
- Electronic Mail Address clearinghouse@edac.unm.edu
- Transfer Options
-
- Online Resource ZIP
- Online Resource ESRI Shapefile (shp)
- Online Resource GML
- Online Resource KML
- Online Resource GeoJSON
- Online Resource JSON
- Online Resource Comma Separated Values (csv)
- Online Resource MS Excel format (xls)
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Spatial Reference Information
- Spatial References
-
- Indirect Spatial Reference Rio Arriba County (35039)
- Geometric Object Type G-polygon
- Geometric Object Count 399
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Metadata Reference Information
- File Identifier 19f19954-8a2b-457b-a1d7-90769cf08125
- Metadata Language English
- Hierarchy Level Dataset
- Date Stamp 2024-04-24
- Metadata Standard Name ISO 19115:2003
- Metadata Standard Version 1.0
- Metadata Contact
-
- Individual Name
- Organization Name Earth Data Analysis Center
- Position Name Clearinghouse Manager
- Role Point of contact
- Voice 505-277-3622 ext. 230
- Facsimile 505-277-3614
- Address
-
- Delivery Point MSC01 1110
- Delivery Point 1 University of New Mexico
- City Albuquerque
- Administrative Area NM
- Postal Code 87131-0001
- Country USA
- Electronic Mail Address clearinghouse@edac.unm.edu
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