Carlsbad, NM 1:250,000 Quad East Half USGS Land Use/Land Cover, 2000
Metadata from the RGIS Metadata Repository
Identification Information
- Title Carlsbad, NM 1:250,000 Quad East Half USGS Land Use/Land Cover, 2000
- Date 2009-02-19
- Date Type Publication
- Cited Responsible Party
-
- Organization Name USGS USEPA EDAC
- Role identify
- Presentation Form vector digital data
- Abstract This land cover data set was produced as part of a cooperative project between
the U.S. Geological Survey (USGS) and the U.S. Environmental Protection Agency
(USEPA) to produce a consistent, land cover data layer for the conterminous U.S.
based on 30-meter Landsat thematic mapper (TM) data. National Land Cover Data (NLCD)
was developed from TM data acquired by the Multi-resoultion Land Characterization
(MRLC) Consortium. The MRLC Consortium is a partnership of federal agencies that
produce or use land cover data. Partners include the USGS (National Mapping,
Biological Resources, and Water Resources Divisions), USEPA, the U.S. Forest
Service, and the National Oceanic and Atmospheric Administration.
- Purpose The New Mexico NLCD set was produced as part of a project areaencompassing
portions of Federal Regions 6. This data set was produced under the direction of the
MRLC Regional Land Cover Characterization Project of the USGS EROS Data Center
(EDC), Sioux Falls, SD. Questions about the data set can be directed to the MRLC
Regional Team at (605) 594-6114 or mrlc@edcmail.cr.usgs.gov.
- Supplemental Information The original statewide 30-meter data has been resampled to 90-meter resolution
and clipped into 39 separate coverages based on USGS 250K quad grids. Each coverage
represents one-half of a 250K quad grid.
- Status Complete
- Point of Contact
-
- Individual Name
- Organization Name Earth Data Analysis Center
- Position Name RGIS Clearinghouse Manager
- Role Point of contact
- Voice (505) 277-3622
- Facsimile (505) 277-3614
- Address
-
- Delivery Point MSC01 1110
- Delivery Point 1 University of New Mexico
- City Albuquerque
- Administrative Area New Mexico
- Postal Code 87131-0001
- Country USA
- Electronic Mail Address clearinghouse@edac.unm.edu
- Maintenance and Update Frequency As needed
- Descriptive Keywords Land Use/Land Cover, Land Management, Land Resources, EDAC, EDC, EPA, EROS, Imagery, Land Characterization, Land Cover, Landsat,
MRLC, Remote Sensing, Satellite, Space Imaging, USGS
- Access Constraints None.
- Use Constraints None. Acknowledgement of the U.S. Geological Survey and Earth Data Analysis Center
(EDAC) would be appreciated in products derived from these data.
- Language English
- Topic Category
- Extent
-
- Geographic Bounding Box
-
- West Bound -105.000267028808
- East Bound -104.000366210937
- North Bound 32.9999237060547
- South Bound 31.9991245269775
- Temporal Extent
-
- Beginning Position 1988-06-08
- Ending Position 1993-09-28
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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
-
- Spatial Reference North American Datum of 1983
-
- Online Reference EPSG:4269
- Spatial Reference Geodetic Reference System 80
-
- Online Reference EPSG:7019
- Indirect Spatial Reference Unknown
- Geometric Object Type G-polygon
- Geometric Object Count 90457
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Data Quality Information
- Attribute Accuracy Report
-
- Report An accuracy assessment is done on all NLCD on a Federal Region basis following
a revision cycle that incorporates feedback from MRLC partners and affiliated users.
The accuracy assessments conducted by private sector vendors under contract to the
USEPA. A protocol has been established by the USGS and USEPA that incorporates
two-stage, geographically stratified cluster sampling plan (Zhu et al., 1999)
utilizing National Aerial Photography Program (NAPP) as the sampling frame and the
basic sampling unit. In this design a NAPP photograph is defined as a 1st stage or
primary unit (PSU), and a sampled pixel within each PSU is treated a 2nd stage or
secondary sampling unit (SSU). PSU's are selected from a sampling grid based on NAPP
flight-lines and photo centers, each grid cell measures 15' X 15' (minutes of and
consists of 32 NHAP photographs. A geographically random sampling is performed with
1 NAPP photo being randomly selected from each cell (geographic strata), if a
sampled photo falls outside of the regional boundary it is not used. Second stage
sampling is accomplished by selecting SSU's (pixels) within each PSU (NAPP photo) to
provide the actual locations for the reference land cover SSU's are manually
interpreted and misclassification errors are estimated and described using a
traditional error matrix as well as a number of other important measures including
the overall proportion of pixels correctly classified, user's and producer's
accuracies, and omission and commission error probabilities. At the time of CD
release (Spring 2001), the accuracy assessment was not complete. For the Region VI
accuracy assessment please check the NLCD Website: accuracy assessment numbers will
be posted there when they become available.
- Quantitative Attribute Accuracy Assessment
-
- Attribute Accuracy Value
- Attribute Accuracy Explanation
- Horizontal Positional Accuracy Report
-
- Report Each Landsat Thematic Mapper image used to create the NLCD was
terrain-corrected using 3-arc-second digital terrain data (DTED), and
georegistered using ground control This resulted in a root mean square
registration error less than 1 pixel (30 meters) in the original 30-meter
statewide coverage. Resampling to 90-meter resolution may have resulted in some
loss of accuracy.
- Quantitative Horizontal Positional Accuracy Assessment
-
- Horizontal Positional Accuracy Value
- Horizontal Positional Accuracy Explanation
- Logical Consistency Report An unsupervised classification algorithm was used to classify the mosaicked multiple
leaf-off TM scenes. Aerial photographs were to interpret and label classes into land
cover categories and ancillary data sources resolved the class confusion. Further land
cover information from leaf-on TM data, NWI data, and other sources incorporated to
refine and augment the "basic" classification.
- Completeness Report All photo-interpretable data were mapped in the original 30-meter resolution
dataset. Resampling to 90-meter resolution may have resulted in the loss of some
data.
- Lineage
-
- Source Information
-
- Source Citation
- Source Scale Denominator
- Type of Source Media Arc/Info coverage or shapefile
- Source Time Period of Content
-
- Beginning Position 1988-06-08
- Ending Position 1993-09-28
- Source Currentness Reference ground condition
- Source Citation Abbreviation Unknown
- Source Contribution Unknown
- Process Step
-
- Process Description Conversion of original New Mexico Land Cover Data Set: The original data
set, downloaded from http://edcwww.cr.usgs.gov/programs/lccp/mrlcreg.html, was
converted to an Arc/Info grid and projected to geographic, decimal degrees,
NAD83, GRS80. The resulting grid was then clipped to USGS 250K quad boundaries
using Arc/Info 8.0.1. These were further clipped using USGS 100K quad boundaries
into grids representing one-half of a 250K quad grid. The resulting grids were
converted to vector coverages, and then, using ArcView 3.2, into shapefiles.
- Process Date 2001-05-21
- Process Time
- Process Contact
-
- Individual Name
- Organization Name Earth Data Analysis Center
- Position Name GIS Manager
- Role Point of contact
- Voice (505) 277-3622
- Facsimile (505) 277-3614
- Address
-
- Delivery Point MSC01 1110
- Delivery Point 1 University of New Mexico
- City Albuquerque
- Administrative Area New Mexico
- Postal Code 87131-0001
- Country USA
- Electronic Mail Address clearinghouse@edac.unm.edu
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Metadata Reference Information
- File Identifier f5b00ed6-9e4b-4803-92ee-4e5027e79514
- Metadata Language English
- Hierarchy Level Dataset
- Date Stamp 2024-09-07
- 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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