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Science goals involving clouds&radiation : Cirrus Microphysical Composition (IWC, Ni(r), habit) and structure, especially vertical structure, and associated radiative properties => improve basic knowledge (models) and remote sensing capabilities, role of radiation in maintaining Ci

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seac4rs cloud radiation utls flight

Science goals involving clouds&radiation:

  • CirrusMicrophysical Composition (IWC, Ni(r), habit) and structure, especially vertical structure, and associated radiative properties => improve basic knowledge (models) and remote sensing capabilities, role of radiation in maintaining Ci
    • Role of pollution on Ci: outflow data sets in clean and polluted environments
    • Minor: Effect of Ci on satellite aerosol retrievals
    • Clout types of interest: Aged and fresh cirrus/anvils, Deep stratiform anvils , TTL/laminar cirrus
    • Selected Aug. 28, 2011
  • Aerosol effects on clouds
    • Cloud types of interest: shallow to moderate depth cumulus clouds during aerosol missions
    • Combine with aerosol mission

SEAC4RS cloud-radiation-UTLS flight

altitude of uppermost clouds
Altitude of uppermost clouds

SEA region

Altitude of uppermost cloud layer likely between 12-18km

thickness of uppermost clouds
Thickness of uppermost clouds

SEA region 12 – 18 km height

Cloud uppermost layer thickness likely ~ 2km

cod of uppermost clouds
COD of uppermost clouds

SEA region 12 – 18 km height

Cloud uppermost COD mostly under 0.3

statistics for august clouds 2006 2010
Statistics for August Clouds, 2006-2010

SEA region all heights

SEA region 12-18km

frequency of cloud occurrence
Frequency of cloud occurrence

SEA region 12 – 18 km height

100% cloudy

(Dark red)

No CALIOP data

(white)

Clear air and/or aerosol

(Dark blue)

August

slide9

Some thoughts:

Get pilot buy-in early

Use aircraft as scout?

Do radiation (incl. intercomp. first, then microphysics

Flux divergence over land VERY difficult