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A Tandem of Spaceborne Microwave Radiometers to Observe Deep Convection: Strategy of Observation and Scientific Objectives of the C2OMODO Project

Abstract : Deep convection plays a fundamental role in the climate system by transporting from the lower layers of the atmosphere to the free troposphere, air, water and momentum. Although its study has been the subject of intense and rich scientific activity for decades, our ignorance of the vertical distribution of convective movements in the heart of convective cells is today an important scientific and operational obstacle. Only space-borne observations can meet the needs in documentation necessary to progress on the science of the water and energy cycle and simultaneously improve numerical forecasting systems. Pending the emergence (hypothetical) of microwave missions in geostationary orbit with high repeatability (~ minute), an approach based on satellite constellations in convoys could provide a first response. The "Convective Core Observations through MicrOwave Derivatives in the trOpics", or C2OMODO project proposes to rely on 2 passive microwave radiometers, inherited from the SAPHIR radiometer onboard Megha-Tropiques, and spaced by 30 to 90sec to characterize intensity and size of individual updrafts in deep convective systems. We will present this original observational strategy, associated to the ACCP general framework, as well as its expected added-value for the characterization of deep convection.
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Submitted on : Saturday, February 12, 2022 - 8:47:20 PM
Last modification on : Monday, May 16, 2022 - 8:20:31 AM

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  • HAL Id : insu-03569174, version 1

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Hélène Brogniez, Rémy Roca, Jean-Pierre Chaboureau, Franck Auguste, Thomas Fiolleau, et al.. A Tandem of Spaceborne Microwave Radiometers to Observe Deep Convection: Strategy of Observation and Scientific Objectives of the C2OMODO Project. American Geophysical Union, Fall Meeting 2020, Dec 2020, Online, Unknown Region. pp.abstract #H206-02. ⟨insu-03569174⟩

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