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BLM Arizona Imagery Mosaic - ECW Photo Index

Layer Thumbnail Map

This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as feature count and date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.

Descriptive nameBLM Arizona Imagery Mosaic - ECW Photo Index
File nameiedoq96b
Spatial domainArizona
AbstractThis is the BLM Arizona Imagery Mosaic ECW Photo Index as delivered with the opdoq96b DOQQ imagery.

The layer is a grid showing the area covered by the compressed ECW orthophotos. Since ECW files are more highly compressed than TIFF, the ECW files cover a larger area than the original TIFF format orthophotos. Using the Arizona MapGuide Map, holding the mouse cursor over individual map areas shows yellow map tips with the ECW orthophoto file name. The ECW Photo Index layer is only useful for those with access to the ECW files.

This grid represents the compressed ECW files, not the original TIFF images as represented by opdoq96b. See more information.
Known errors/qualifications
Feature typepolygon
Feature count 143
Thumbnail Map iedoq96b.pdf PDF file format   (558,867 bytes, PDF created 07/19/2022 )
ProjectionNAD83 HPGN (Parameters)
Field/value metadata Field metadata
Source organizationArizona State Cartographer's Office
Source contactGene Trobia
Source document or file namenad83_ecw.shp
Source date200211
Source scale
Source formatUnknown
Second source nameBLM GIS Incident Management Team
Second source contactDave Wilson dave_t_wilson@blm.gov
Second source document or file name
Second source date
Second source scale
Second source formatUnknown
Date of last data update
(This date may not be current.)
Last data update byJohn Dickinson
Date/time last touched - Meaning? 2020-09-04  07:59 AM - Enterprise GDB
  2020-09-04  12:29 AM - Shapefile - Library input format
  See coverage files, if any, for date.
LineageThis layer was delivered with the DOQQ imagegy that was georeferenced by the BLM GIS Incident Management Team and given to the Arizaon State Cartographer's Office.
On maintenance?No
Maintenance organization
Maintenance descriptionshapearcpoly, project UTM NAD83 zone 12 to NAD83 HPGN
Original conversion byBLM GIS Incident Management Team
Pima County ITD GIS contactJohn Dickinson
Alternate Pima County ITD GIS contacte-mail address
On  Pima County Geospatial Data Portal? No

See Metadata Field Descriptions.
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