coincident.io.sliderule.sample_raster#

coincident.io.sliderule.sample_raster(gf, asset_key='usgs3dep-1meter-dem', project_name=None)[source]#

Sample 3DEP 1-meter DEM with POINT geometries in GeoDataFrame.

Points should be (longitude, latitude) not UTM

Parameters:

  • gf (GeoDataFrame) – A GeoDataFrame containing POINT geometries in EPSG:4326

  • asset_key (str) – Sliderule asset key to sample (e.g. “usgs3dep-1meter-dem” or “esa-worldcover-10meter”)

  • project_name (str | None) – For 3dep, a WESM project name to restrict results to (e.g. “CO_WestCentral_2019_A19”)

Return type:

GeoDataFrame

Returns:

A GeoDataFrame with sampled elevation data from the 3DEP 1-meter DEM.

Notes

Sliderule automatically reprojects to ITRF2020. For 3DEP 1m this means going from tiffs stored as NAD83(2011) + NAVD88 height in various UTM zones.