NGS Datasheets — Stable GNSS Control Marks

Geodetic control marks from the NOAA National Geodetic Survey (NGS) Integrated Database, published as datasheets. This reference filters the ~1,000,000 datasheets to the marks the SUBSIDE velocity workflow cares about: those that are GNSS/GPS-usable (SAT_USE = 'Y') and physically stable (STABILITY class A or B — marks expected to hold their position/elevation well), ~72,000 statewide/nationwide point records.

Why SUBSIDE references them: the velocity workflow fits a linear rate to OPERA DISP-S1 InSAR displacement, which is a relative measurement. Stable, satellite-suitable NGS marks (CORS, PACS/SACS, and high-stability monuments) provide absolute reference / validation control to tie or sanity-check those relative velocities. Each mark carries its PID, name, stability and satellite-use codes, datum/epoch, ellipsoidal and orthometric heights, and a link back to its full NGS datasheet.

Published by NOAA/NGS as a public ArcGIS FeatureServer and linked here as an external reference for the SUBSIDE catalog. It is also registered as the ngs-gnss-stable map overlay in the subside-context STAC collection (loaded viewport-by-viewport, server-side filtered to SAT_USE='Y' AND STABILITY IN ('A','B')). NGS datasheet field reference: https://geodesy.noaa.gov/DATASHEET/dsdata.pdf

Dataset extent

Data a zdroje

  • NGS Datasheets (ArcGIS FeatureServer layer 1)Esri REST

    Point layer of NGS datasheet control marks (ALL_DATASHEETS; geometry EPSG-...

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  • NGS Datasheets FeatureServer (service root)Esri REST

    Service root for the NGS Datasheets FeatureServer (service metadata, layer...

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  • NGS Datasheet field reference (dsdata.pdf)PDF

    NOAA/NGS documentation describing the datasheet format and every field (PID,...

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  • NGS Datasheets (documentation / retrieval)HTML

    NGS datasheet portal: documentation and tools to retrieve datasheets by PID,...

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Doplňující informace

Pole Hodnota
Zdroj https://geodesy.noaa.gov/datasheets/
Verze
Autor
Email autora
Správce SUBSIDE (UT Austin / TACC)
Email správce SUBSIDE (UT Austin / TACC)
Temporal Coverage Start
Temporal Coverage End
Spatial Coverage {"type": "Polygon", "coordinates": [[[-125.0, 24.0], [-66.5, 24.0], [-66.5, 49.5], [-125.0, 49.5], [-125.0, 24.0]]]}