Interactions: Smoke and Clouds above the Southeast Atlantic Upcoming Field...

Zuidema, P., J. Redemann, J. Haywood, R. Wood, S. Piketh, M. Hipondoka, and P. Formenti (2016), Interactions: Smoke and Clouds above the Southeast Atlantic Upcoming Field Campaigns Probe Absorbing Aerosol’s Impact on Climate, Bull. Am. Meteorol. Soc., 19-23, doi:10.1175/BAMS-D-15-00082.1.
Abstract: 

F rom July through October, smoke from biomassburning (BB) fires on the southern African subcontinent is transported westward through the free troposphere over one of the largest stratocumulus cloud decks on our planet (Fig. 1). BB aerosol (smoke) absorbs shortwave radiation efficiently. This fundamental property implicates smoke within myriad small-scale processes with potential large-scale impacts on climate that are not yet well understood. A coordinated, international team of scientists from the United States, United Kingdom, France, South Africa, and Namibia will provide an unprecedented interrogation of this smoke-and-cloud regime from 2016 to 2018, using multiple aircraft and surface-based instrumentation suites to span much of the breadth of the southeast Atlantic. The scientific motivations are many. Smoke warms the atmosphere, in contrast to the climate cooling provided by the reflected sunlight from the extensive low clouds residing mostly below the smoke layer. Yet the low clouds also respond to the presence of

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Research Program: 
Radiation Science Program (RSP)
Mission: 
ORACLES