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USGS 3DHP#

[1]:

import shapely

from pynhd import HP3D, NLDI

USGS 3DHP web service has five layers: hydrolocation, flowline, waterbody, drainage_area, and catchment. Let’s start by getting the closest flowline within a 10 m radius of a point.

[2]:

nhd3d = HP3D("flowline")
point = shapely.Point(-89.441, 43.487)
flw = nhd3d.bygeom(point, distance=10)
flw.explore()

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Next, we use NLDI to get the basin boundary of a NHD flowline and use it to query different layers of the 3DHP web service.

[3]:

comid = "937070225"
basin = NLDI().get_basins(comid, "comid")
basin.explore()

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[4]:

nhd3d = HP3D("flowline")
network = nhd3d.bygeom(basin.geometry.iloc[0])
network.explore()

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