GIS data for 2012 Scientific Investigations Map 3230,"Water-Level Altitudes 2012 and Water-Level Changes in the Chicot, Evangeline, and Jasper Aquifers and Compaction 1973–2011 in the Chicot and Evangeline Aquifers, Houston–Galveston Region, Texas" by Mark C. Kasmarek, Michaela R. Johnson, and Jason K. Ramage


The GIS data are contained in two separate compressed files:

Geodatabase version:
GIS_Data_for_SIM3230_2012WaterLevelChange_Series_GDB.zip

Shapefile version:
GIS_Data_for_SIM3230_2012WaterLevelChange_Series_SHP.zip

Each of these versions contains a metadata directory containing Federal Geographic Data Committee compliant metadata in *.xml and *.txt versions.
\metadata\GIS_Data_for_SIM3230_2012WaterLevelChange_Series.txt
\metadata\GIS_Data_for_SIM3230_2012WaterLevelChange_Series.xml


The data are separated into three feature datasets (three directories for shapefiles) by aquifer that contain the individual feature classes (shapefiles).
   
   Chicot aquifer - (feature dataset name/shapefile directory name)
   Feature classes/shapefiles:
   ch12pt - water-level altitudes, 2012
   ch12arc - approximate water-level altitudes, 2012
   ch1112pt - water-level changes, 2011-12
   ch0712pt - point values of water-level changes, 2007-12
   ch0712arc - water-level changes, 2007-12
   ch9012pt - point values of water-level changes, 1990-2012
   ch9012arc - water-level changes, 1990-2012
   ch7712pt - point values of water-level changes, 1977-2012
   ch7712arc - water-level changes, 1977-2012

   Evangeline aquifer - (feature dataset name/shapefile directory name)
   Feature classes/shapefiles:
   ev12pt - water-level altitudes, 2012
   ev12arc - approximate water-level altitudes, 2012
   ev1112pt - water-level changes, 2011-12
   ev0712pt - point values of water-level changes, 2007-12
   ev0712arc - water-level changes, 2007-12
   ev9012pt - point values of water-level changes, 1990-2012
   ev9012arc - water-level changes, 1990-2012
   ev7712pt - point values of water-level changes, 1977-2012
   ev7712arc - water-level changes, 1977-2012

   Jasper aquifer - (feature dataset name/shapefile directory name)
   Feature classes/shapefiles:
   ja12pt - water-level altitudes, 2012
   ja12arc - approximate water-level altitudes, 2012
   ja1112pt - water-level changes, 2011-12
   ja0712pt - point values of water-level changes, 2007-12
   ja0712arc - water-level changes, 2007-12
   ja0012pt - point values of water-level changes, 2000-2012
   ja0012arc - water-level changes, 2000-2012