Local Land-Atmosphere Interaction: Will Clouds Form?

Rescheduled Date from June 14, 2018
Speaker: Michael Ek
Affiliation: NCAR/RAL/JNT

Local land-atmosphere coupling involves the interactions between the land-surface and the atmospheric boundary layer (ABL), and in turn with the free atmosphere above.  Initiation of fair-weather cumulus requires an increase in relative humidity at the ABL top, and depends on a number of processes, some opposing each other.  Those processes include the evolution of surface fluxes, sub-surface heat and moisture transport, surface-layer turbulence, boundary-layer development, and warm- and dry-air entrainment into the ABL from the free atmosphere above.  Following an analytical development, we use modeling and observational data sets to examine this question.

Refreshments: 3:15 PM


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Thursday, July 12, 2018 - 3:30pm to 4:30pm

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