In Niamey, Niger, the ARM Mobile Facility collected atmospheric data from January through December 2006.
In March 2006, a major dust storm
occurred in Niamey, Niger. Although a
common occurrence, this was the first
time both satellite- and ground-based
instruments were used simultaneously
to assess the impact of airborne Saharan
dust on incoming and outgoing solar
radiation. Pacific Northwest National
Laboratory scientists involved in the
study are members of the science
team for the Department of Energy’s
Atmospheric Radiation Measurement
For this study, the
researchers gathered data obtained
from satellite observations and from
the ARM Mobile Facility (AMF), a
portable atmospheric research facility,
temporarily deployed to Niamey.
They entered these measurements into
climate models to see how well the
models would simulate the impact of
the dust on the solar radiation balance.
Using a broader data set from the AMF
deployment, PNNL researchers will
calculate the long-term warming
and cooling effects of Saharan
dust and the warming and
cooling effects of aerosols in
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