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Volume 18, issue 3
Atmos. Chem. Phys., 18, 1997–2010, 2018
https://doi.org/10.5194/acp-18-1997-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Observations and Modeling of the Green Ocean Amazon (GoAmazon2014/5)...

Atmos. Chem. Phys., 18, 1997–2010, 2018
https://doi.org/10.5194/acp-18-1997-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 12 Feb 2018

Research article | 12 Feb 2018

Tropical continental downdraft characteristics: mesoscale systems versus unorganized convection

Kathleen A. Schiro and J. David Neelin

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Cited articles

Atmospheric Radiation Measurement (ARM) Climate Research Facility: updated hourly, Meteorological Measurements associated with the Aerosol Observing System (AOSMET), 2014-01-10 to 2015-10-20, ARM Mobile Facility (MAO) Manacapuru, Amazonas, Brazil; MAOS (S1), compiled by: Koontz, A., Kyrouac, J., and Springston, S., Atmospheric Radiation Measurement (ARM) Climate Research Facility Data Archive: Oak Ridge, Tennessee, USA, https://doi.org/10.5439/1025153, 2013a.
Atmospheric Radiation Measurement (ARM) Climate Research Facility: updated hourly, Balloon-Borne Sounding System (SONDEWNPN), 2014-01-10 to 2015-10-20, ARM Mobile Facility (MAO) Manacapuru, Amazonas, Brazil; AMF1 (M1), compiled by: Holdridge, D., Kyrouac, J., and Coulter, R., Atmospheric Radiation Measurement (ARM) Climate Research Facility Data Archive: Oak Ridge, Tennessee, USA, https://doi.org/10.5439/1021460, 2013b.
Atmospheric Radiation Measurement (ARM) Climate Research Facility: updated hourly, Eddy Correlation Flux Measurement System (30ECOR), 2014-04-03 to 2015-10-20, ARM Mobile Facility (MAO) Manacapuru, Amazonas, Brazil; AMF1 (M1), compiled by: Cook, D., Atmospheric Radiation Measurement (ARM) Climate Research Facility Data Archive: Oak Ridge, Tennessee, USA, https://doi.org/10.5439/1025039, 2014.
Atmospheric Radiation Measurement (ARM) Climate Research Campaign Data: Observations and Modeling of the Green Ocean Amazon (GOAMAZON), SIPAM Manaus S-Band Radar, 10 January 2014–20 October 2015, 36° 3.1489° S, 59.9914° W, Manaus, Amazonas, Brazil (T1), processed by: Schumacher, C., www.arm.gov (last access: 8 February 2018), 2015.
Atmospheric Radiation Measurement (ARM) Climate Research Facility Observations and Modeling of the Green Ocean Amazon (GOAMAZON): Radar Wind Profiler (1290RWPPRECIPMOM), Atmospheric Radiation Measurement (ARM) Climate Research Facility Data Archive: Oak Ridge, Tenn. https://doi.org/10.5439/1256461, 2015.
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Downdraft processes in climate models are poorly constrained, largely due to a lack of robust, statistical relationships describing them. Using multi-instrument data from the GoAmazon2014/5 campaign, downdraft properties of mesoscale-organized and unorganized systems are compared and such statistics are presented. Both vertical velocity retrievals and thermodynamic arguments are consistent in suggesting a spectrum of downdraft mass origin levels throughout the lowest few kilometers.
Downdraft processes in climate models are poorly constrained, largely due to a lack of robust,...
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