GIS Library Contents - Metadata
Tree Canopy Change-NLCD 2011 to 2016 (Raster)
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 name||Tree Canopy Change-NLCD 2011 to 2016 (Raster)|
|Spatial domain||Pima Cnty & Vicinity|
|Abstract||National Land Cover Database USFS Tree Canopy Change product, produced by MRLC (Multi-Resolution Land Characteristics) Consortium. This dataset is part of the updated NLCD 2016 release. It captures the change in canopy cover between the two nominal years of 2011 and 2016. The CONUS TCC NLCD change dataset is comprised of a single layer. Percent canopy gains are represented as values 0 to 100. Percent canopy losses are represented as values 101 to 200 such that a percent canopy loss of 25 would be represented by the value 125. The background is represented by the value 255.|
Full metadata are included in the nlcdtrch.img.xml file located in the same path as the maintenance format file.
-- See more information.
|Known errors/qualifications||1. Since new 2016 versions of NLCD products for all years have now been released, the decision was made to refrain from reprojecting this dataset into the County's standard NAD83 HARN projection; it remains in an Albers Equal Area projection of the NAD83 datum. Since pixels were therefore not resampled, they do now represent the exact area on the ground that the original satellite sensor collected. 2. Note that until the NLCD11TR Library layer has been updated (check that layer's metadata), change pixels in this layer won't line up exactly with pixels in that layer, as it was reprojected to NAD83 HARN. A newer version of NLCD11TR will be presented using the original coordinate system of the updated version.|
|Field/value metadata||Field metadata|
|Source document or file name||NLCD_Tree_Canopy_Change_Index_L48_20190831.zip|
|Date of last data update|
(This date may not be current.)
|Last data update by||Erik Glenn|
|Date/time last touched - Meaning?||- The Enterprise GDB date was not found.|
|- The Shapefile date was not found.|
|See coverage files, if any, for date.|
|Lineage||20191017 -- Downloaded from MRLC (Multi-Resolution Land Characteristics) Consortium, clipped (EG).|
|Original conversion by||Erik Glenn|
|Pima County ITD GIS contact||Erik Glenn|
|Alternate Pima County ITD GIS contact|
|On Pima County Geospatial Data Portal?||No|