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필드	값
마지막으로 업데이트된 데이터	2026년 6월 24일
마지막으로 업데이트된 메타데이터	2026년 6월 24일
생성됨	2026년 6월 24일
포맷	GeoJSON
라이센스	Other (Public Domain)
Abstract	NTGAM shapefile — hds_lyr6_sp52.geojson
Temporal Coverage Start	1890-01-01
Temporal Coverage End	2024-12-31
Program Area	Groundwater
Data Contact Email	gam@twdb.texas.gov
Caveats and Usage	Northern Trinity & Woodbine GAM (NTGAM) v3.01 output for regional groundwater planning and screening; not for site-specific design. See the NTGAM v3.01 final report (INTERA, Dec 2025).
Categories	Groundwater
Primary Tags	groundwater__hydraulic_head
Secondary Tags
Collection Method	Model Output
Quality Control Level	Calibrated, history-matched GAM (TWDB-adopted, v3.01)
spatial
Abstract	NTGAM shapefile — hds_lyr6_sp52.geojson
Categories	Groundwater
Caveats usage	Northern Trinity & Woodbine GAM (NTGAM) v3.01 output for regional groundwater planning and screening; not for site-specific design. See the NTGAM v3.01 final report (INTERA, Dec 2025).
Collection method	Model Output
Data contact email	gam@twdb.texas.gov
Extent	full
Gam version	3.01
Has views	False
Id	547c68ac-8d22-495f-9078-fa58aaf876f4
Mimetype	application/octet-stream
Mint standard variables	groundwater__hydraulic_head
Model layer	6
Ntgam theme	shapefile
Package id	dd7ae765-3789-4c3c-8d2c-04df49f34ba5
Position	12
Primary tags	groundwater__hydraulic_head
Program area	Groundwater
Quality control level	Calibrated, history-matched GAM (TWDB-adopted, v3.01)
Size	126.6 MiB
Source path	NTGAM_Geodatabase/Shapefiles/SubSurfaceHydroWaterLevels/contours/25_ft/hds_lyr6_sp52.shp
Standard variable uri	https://w3id.org/okn/i/mint/groundwater__hydraulic_head
State	active
Stress period	52
Temporal coverage end	2024-12-31
Temporal coverage start	1890-01-01
Unit	ft
Url type	upload