Additional Information

Field Value
Data last updated July 21, 2026
Metadata last updated July 21, 2026
Created July 21, 2026
Format HTML
License Creative Commons Attribution
Abstract TWDB GAM landing page for the Gulf Coast Aquifer System, southern portion, superseded model (MODFLOW-96, Chowdhury & Mace 2007). Direct model-archive download link not yet independently verified via a Tapis test run.
Temporal Coverage Start 2007-01-01
Temporal Coverage End 2007-12-31
Program Area Groundwater
Data Contact Email gam@twdb.texas.gov
Caveats and Usage Superseded by the combined central+southern GAM; retained for historical reference only. Spatial extent is an approximate bounding box derived from GMA 16 member-county boundaries (TACC SUBSIDE texas_counties layer), not the precise model grid extent.
Categories Groundwater
Primary Tags
Secondary Tags
Collection Method Model Output
Quality Control Level Superseded TWDB GAM
spatial { "coordinates": [ [ [ -100.212348138, 25.837224319 ], [ -97.04518735, 25.837224319 ], [ -97.04518735, 28.786534911 ], [ -100.212348138, 28.786534911 ], [ -100.212348138, 25.837224319 ] ] ], "type": "Polygon" }
AbstractTWDB GAM landing page for the Gulf Coast Aquifer System, southern portion, superseded model (MODFLOW-96, Chowdhury & Mace 2007). Direct model-archive download link not yet independently verified via a Tapis test run.
CategoriesGroundwater
Caveats usageSuperseded by the combined central+southern GAM; retained for historical reference only. Spatial extent is an approximate bounding box derived from GMA 16 member-county boundaries (TACC SUBSIDE texas_counties layer), not the precise model grid extent.
Collection methodModel Output
Data contact emailgam@twdb.texas.gov
Has viewsFalse
Id37b53f09-5a74-42cc-92a0-5917a1605b05
Package idf9b6b956-6b30-4017-aae9-f25b3a137ae6
Position0
Program areaGroundwater
Quality control levelSuperseded TWDB GAM
Spatial{'type': 'Polygon', 'coordinates': [[[-100.212348138, 25.837224319], [-97.04518735, 25.837224319], [-97.04518735, 28.786534911], [-100.212348138, 28.786534911], [-100.212348138, 25.837224319]]]}
Stateactive
Temporal coverage end2007-12-31
Temporal coverage start2007-01-01