HR: 1340h
AN: GC33A-0948    [Abstracts]
TI: Effects of dust in hyperspectral sounder data and impact on OLR
AU: * Desouza-Machado, S
EM: sergio@umbc.edu
AF: JCET, Dept of Physics, University of Maryland, Baltimore County, Baltimore, MD 21227, United States
AU: Strow, L
EM: strow@umbc.edu
AF: JCET, Dept of Physics, University of Maryland, Baltimore County, Baltimore, MD 21227, United States
AU: Imbiriba, B
EM: imbiriba@umbc.edu
AU: Hannon, S
EM: hannon@umbc.edu
AU: Motteler, H
EM: motteler@umbc.edu
AB: The thermal infrared radiances measured at the top of the atmosphere (TOA) by high spectral resolution sounding instruments are significantly affected by large particle mineral aerosols (desert dust) and cirrus. Since September 2002, NASA's AIRS instrument has provided us with very stable high quality data that can be used to detect and monitor dust events and cirrus cloud cover. Here we will present global estimates of desert dust optical depths, as well as lower bound estimates of Outgoing Longwave Radiation forcing due to dust, using four years of AIRS cloud cleared radiances and radiances that have passed through an uniform-clear filter.
DE: 1610 Atmosphere (0315, 0325)
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 3310 Clouds and cloud feedbacks
DE: 3337 Global climate models (1626, 4928)
SC: Global Environmental Change [GC]
MN: 2007 Fall Meeting