Hubbard Brook Experimental Forest (US Forest Service): Soil Temperature Measurements, 1959 - 1998

Soil temperature data were collected approximately
weekly at the Hubbard Brook Experimental Forest from 1959 -
1998. Colman temperature-moisture sensors were installed at
one location west of weir 4 and replicated (1 and 2) at
depths of 3, 8, 15, 30, 46 and 61 cm. Soil resistance was
recorded using a manually-operated AC resistance meter then
converted to temperature. In 1998 the battery needed to
operate the meter to read the sensors was no longer
available. No soil temperature data were collected from the
last Colman reading in 1998 until the start of a new network
collocated with the Colman plots. Two sets of hydroprobes run
from a SCAN site (Soil Climate and Analysis Network operated
by the NRCS) were placed at the original depths and as close
as possible to the original location. Hubbard Brook SCAN data
are now available at the NRCS SCAN website from 2002 –
present and serve to extend the soil temperature dataset
first initiated in 1959 in to the future. These data were gathered as part of the Hubbard Brook
Ecosystem Study (HBES). The HBES is a collaborative effort at
the Hubbard Brook Experimental Forest, which is operated and
maintained by the USDA Forest Service, Northern Research
Station.