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GCPEx: GPM Cold-season Precipitation Experiment

20 Jan 2012, 19:08 UTC
GCPEx: GPM Cold-season Precipitation Experiment
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The GPM (Global Precipitation Measurement) Cold-season Precipitation Experiment (GCPEx) will be conducted in cooperation with Environment Canada in Ontario, Canada from January 17th to February 29th, 2012. The overarching goal of GCPEx is to characterize the ability of multi-frequency active and passive microwave sensors to detect and estimate falling snow through the collection of microphysical property data, associated remote sensing observations, and coordinated model simulations of falling snow. Through collection of these unique datasets, GCPEx will seek to improve the GPM snowfall retrieval algorithms.
The GCPEx experiment will use instrumented aircraft (NASA DC-8, NASA-funded University of North Dakota Cessna Citation, and Canadian National Research Council Convair 580) for flights over heavily-instrumented ground sites located in and around the Environment Centre for Atmospheric Research Experiments (CARE) located in Egbert, Ontario. The DC-8 aircraft will fly high above clouds and precipitation with instruments similar to those on the GPM Core satellite. The Citation and C580 aircraft will fly through snowing clouds to measure snowflake properties in situ. Ground-based equipment such as radars and surface particle and snow water equivalent measurement instrumentation will connect airborne measurements of snowfall to what is measured at the ground. Data from the experiment will be used to ...

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