Global precipitation measurement cold season precipitation experiment (GCPEX): For measurement's sake, let it snow

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DOIResolve DOI: http://doi.org/10.1175/BAMS-D-13-00262.1
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TypeArticle
Journal titleBulletin of the American Meteorological Society
ISSN0003-0007
Volume96
Issue10
Pages17191741; # of pages: 23
SubjectFighter aircraft; NASA; Precipitation (meteorology); Snow; Airborne remote sensing; Cold season precipitation; Coordinated modeling; Global precipitation measurements; International partners; Measurement strategies; Microphysical property; Snow retrieval algorithm; Remote sensing
AbstractThe GPM Cold Season Precipitation Experiment (GCPEx), a collaboration between NASA GPM ground validation (GV) program and its international partner, Environment Canada (EC), provided both new datasets and physical insights related to the snowfall process to ultimately improve falling-snow retrievals. The GCPEx field campaign occurred in Ontario, Canada, from 15 January to 3 March 2012. GCPEx collected microphysical properties, associated remote sensing observations, and coordinated model simulations of precipitating snow. The coordinated measurement strategy used stacked high-altitude GPM airborne remote sensing simulator instrumentation and in situ cloud aircraft flights with three research aircraft sampling within a broader network of five ground sites taking surface in situ and volumetric observations. Data collected during this field campaign exceeded all expectations, with measurements of heavy fluffy, non-melted, rate, moderate and light falling-snow rates, along with mixed-phase and rain cases. It is anticipated that the GCPEx dataset will satisfy the majority of GPM falling-snow retrieval algorithm validation objectives originally set forward for the experiment. These 3D datasets are suitable for conducting observational and modeling-based studies of bulk- and/or particle-scale snow microphysical and scattering properties observed at the ground, through the atmospheric column, and at high altitudes as observed from the vantage point of remote sensing instrumentation deployed on the GPM Core Observatory.
Publication date
PublisherAmerican Meteorological Society
LanguageEnglish
AffiliationNational Research Council Canada; Aerospace
Peer reviewedYes
NPARC number21277393
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Record identifierd0b498d4-a76b-4e58-9b17-a00df24d5649
Record created2016-03-09
Record modified2016-05-09
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