GIS Library Contents - MetadataLand Subsidence & Aquifer-System Compaction: 1987-2005 |
This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.
Descriptive name | Land Subsidence & Aquifer-System Compaction: 1987-2005 | |
File name | sbsd8705 | |
Spatial domain | Eastern Pima County | |
Abstract | SBSD8705 displays land subsidence (and rebound) in 1" increments across the Tucson metro area and parts of Avra Valley and south-central Pinal County. This layer shows as "Figure 12" in the 2007 USGS report: "Land Subsidence and Aquifer-System Compaction in the Tucson Active Management Area, South-Central Arizona, 1987-2005". See more information. | |
Known errors/qualifications | See USGS report for description of scattered data interpolation methods. | |
Feature type | polygon | |
Feature count | 26 | |
Thumbnail Map | sbsd8705.pdf (426,482 bytes, PDF created 07/20/2022 ) | |
Projection | NAD83 HPGN (Parameters) | |
Rectification | unknown | |
Field/value metadata | Field metadata | |
Source organization | USGS | |
Source contact | Donald R. Pool | |
Source document or file name | ||
Source date | 20071201 | |
Source scale | ||
Source format | Grid | |
Date of last data update (This date may not be current.) | 20071227 | |
Last data update by | Mike List | |
Date/time last touched - Meaning? | 2021-04-26 12:14 AM - Enterprise GDB | |
2021-04-26 12:15 AM - Shapefile - Library input format | ||
See coverage files, if any, for date. | ||
Lineage | USGS provided a raster of interpolated subsidence values. One inch contours were drawn from this surface, smoothed, and built into polygons. | |
On maintenance? | No | |
Maintenance organization | ||
Maintenance description | ||
Original conversion by | Mike List | |
Pima County ITD GIS contact | Mike List | |
Alternate Pima County ITD GIS contact | ||
On Pima County Geospatial Data Portal? | No |