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measurements of microwave brightness temperature from both SSM/I and AMSR-E and as
such these periods are assessed here. Snowpit profiles provided snow properties for HUT
radiative transfer simulations, which were compared with the satellite retrievals to confirm
HUT's applicability.
Figure
3
shows the CLPX study area, largely in Colorado, USA, and the snowpits were
within the three mesoscale study areas (MSAs) each of which is approximately 25 by
25 km, the size to which AMSR-E and SSM/I 19 and 37 V brightness temperatures are
resampled.
For the first DT
B
;
V
simulations, snow profiles were produced with layers of 10 cm
thickness, limited by the spatial resolution of the temperature and density measurements.
These profiles are referred to here as the N-layer case and are assumed to represent truth. In
reality, snow layers are of irregular depth, but LSMs often feature prescribed layer depths
and the aim of this experiment is to compare LSM-like outputs.
Fig. 3 Map of Cold Land Processes Experiment (CLPX) area showing the mesoscale study areas (MSAs)
in which the snowpits were dug. (after
http://www.nohrsc.nws.gov/*cline/clpx.html
)
