GIS data for 2011 Scientific Investigations Map 3174,"Water-Level Altitudes 2011 and Water-Level Changes in the Chicot, Evangeline, and Jasper Aquifers and Compaction 1973–2010 in the Chicot and Evangeline Aquifers, Houston–Galveston Region, Texas" by Michaela R. Johnson, Jason K. Ramage, Mark C. Kasmarek


The GIS data are contained in two separate compressed files:

Geodatabase version:
GIS_Data_for_SIM3174_2011WaterLevelChange_Series_GDB.zip

Shapefile version:
GIS_Data_for_SIM3174_2011WaterLevelChange_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_SIM3174_2011WaterLevelChange_Series.txt
\metadata\GIS_Data_for_SIM3174_2011WaterLevelChange_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:
   ch11pt - water-level altitudes, 2011
   ch11arc - approximate water-level altitudes, 2011
   ch1011pt - water-level changes, 2010-11
   ch0611pt - point values of water-level changes, 2006-11
   ch0611arc - water-level changes, 2006-11
   ch9011pt - point values of water-level changes, 1990-2011
   ch9011arc - water-level changes, 1990-2011
   ch7711pt - point values of water-level changes, 1977-2011
   ch7711arc - water-level changes, 1977-2011

   Evangeline aquifer - (feature dataset name/shapefile directory name)
   Feature classes/shapefiles:
   ev11pt - water-level altitudes, 2011
   ev11arc - approximate water-level altitudes, 2011
   ev1011pt - water-level changes, 2010-11
   ev0611pt - point values of water-level changes, 2006-11
   ev0611arc - water-level changes, 2006-11
   ev9011pt - point values of water-level changes, 1990-2011
   ev9011arc - water-level changes, 1990-2011
   ev7711pt - point values of water-level changes, 1977-2011
   ev7711arc - water-level changes, 1977-2011

   Jasper aquifer - (feature dataset name/shapefile directory name)
   Feature classes/shapefiles:
   ja11pt - water-level altitudes, 2011
   ja11arc - approximate water-level altitudes, 2011
   ja1011pt - water-level changes, 2010-11
   ja0611pt - point values of water-level changes, 2006-11
   ja0611arc - water-level changes, 2006-11
   ja0011pt - point values of water-level changes, 2000-2011
   ja0011arc - water-level changes, 2000-2011