Expected magnitude of the aerosol shortwave indirect effect in springtime Arctic liquid water clouds

Citation:
Lubin, D, Vogelmann AM.  2007.  Expected magnitude of the aerosol shortwave indirect effect in springtime Arctic liquid water clouds. Geophysical Research Letters. 34

Date Published:

Jun

Keywords:

absorption, emissivity, microphysics, models, part ii, radiation, remote sensors, retrievals, sheba, surface

Abstract:

Radiative transfer simulations are used to assess the expected magnitude of the diurnally-averaged shortwave aerosol first indirect effect in Arctic liquid water clouds, in the context of recently discovered longwave surface heating of order 3 to 8 W m(-2) by this same aerosol effect detected at the Barrow, Alaska, ARM Site. We find that during March and April, shortwave surface cooling by the first indirect effect is comparable in magnitude to the longwave surface heating. During May and June, the shortwave surface cooling exceeds the longwave heating. Due to multiple reflection of photons between the snow or sea ice surface and cloud base, the shortwave first indirect effect may be easier to detect in surface radiation measurements than from space.

Notes:

n/a

Website

DOI:

10.1029/2006gl028750

Scripps Publication ID:

L11801