mescla.datasets.loaders.load_grafton_nh¶

mescla.datasets.loaders.load_grafton_nh(site_type=None)[source]¶

Real major-ion chemistry from Grafton County, New Hampshire.

130 complete analyses (Ca, Mg, Na, K, Cl, SO4, mg/L) from 66 stream and 64 groundwater-well samples collected 1990-2021, retrieved from the Water Quality Portal. Public domain (U.S. Geological Survey).

This is the county containing the Hubbard Brook Experimental Forest, and the chemistry spans the range that makes it a useful teaching set: dilute upland streams at one extreme, road-salt-affected and mineralised groundwater at the other.

Parameters:: site_type ({"Stream", "Well"}, optional) – Restrict to one kind of water.
Returns:: WaterChemistry – With .attrs-style metadata available through load_grafton_nh_frame().
Return type:: WaterChemistry