Service Description: The intention of this mapping project was to update the 2006 riparian vegetation classification maps from the Lower Colorado and Bill Williams Rivers (BioWest 2006) using 2010 imagery and the Anderson and Ohmart classification system (1984). The maps will be used for identifying survey areas for system-wide covered species surveys and for identifying potential areas for the habitat maintenance fund. These maps can be used for other projects and species surveys as needed.
Service ItemId: f38a0ac089a94130af00cb410059efbb
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Layers:
Description: Change polygons, at 2 levels (200 and 800), were created using e-Cognition, 2004 Ortho-photos, and 2010 NAIP imagery. Once polygons were created, polygons were assigned A&O labels through photo-interpretation. Change polygons were cut, reshaped, or merged as necessary to classify the habitat as accurately as possible. In addition to the 2010 NAIP imagery, imagery from 2011 was used to assist with structural labels so that they would more closely reflect the current conditions at the time of map production.
United States Bureau of Reclamation and Lower Colorado River Multi-Species Conservation Program
Anderson, B.W., and R.D. Ohmart. 1984. Lower Colorado River riparian methods of quantifying vegetation 13 communities to prepare type maps. Final report prepared for the Bureau of Reclamation, Lower Colorado Region, Boulder City, NV.
Bangle, D. B., R. Ahlbrandt, M. Baker, and J. Milliken. 2014. 2010-2011 Vegetation Mapping along the Lower Colorado River. Final report prepared for the Bureau of Reclamation, Lower Colorado Region, Boulder City, NV. 80 pages.
Bio-West, Inc. and GEO/Graphics, Inc. 2006. 2004 Lower Colorado region vegetation type mapping, backwaters delineation, orthophotography, and GIS development. Final report prepared for the Bureau of Reclamation, Lower Colorado Region, Boulder City, NV.
Spatial Reference: 102100 (3857)
Initial Extent:
XMin: -12776255.4987886
YMin: 3850508.12977273
XMax: -12695034.4555571
YMax: 3908743.16147174
Spatial Reference: 102100 (3857)
Full Extent:
XMin: -12799308.0855333
YMin: 3834057.15109722
XMax: -12634334.4731296
YMax: 4394543.61245886
Spatial Reference: 102100 (3857)
Units: esriMeters
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