The Atmospheric Infrared Sounder version 6 cloud products

The Atmospheric Infrared Sounder version 6 cloud products

The version 6 cloud products of the Atmospheric Infrared Sounder (AIRS) and Advanced Microwave Sounding Unit (AMSU) instrument suite are described. The cloud top temperature, pressure, and height and effective cloud fraction are now reported at the AIRS field-of-view (FOV) resolution. Significant im...

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Main Authors: B. H. Kahn, F. W. Irion, V. T. Dang, E. M. Manning, S. L. Nasiri, C. M. Naud, J. M. Blaisdell, M. M. Schreier, Q. Yue, K. W. Bowman, E. J. Fetzer, G. C. Hulley, K. N. Liou, D. Lubin, S. C. Ou, J. Susskind, Y. Takano, B. Tian, J. R. Worden
Format: Article
Language:English
Published: Copernicus Publications 2014-01-01
Series:Atmospheric Chemistry and Physics
Online Access:http://www.atmos-chem-phys.net/14/399/2014/acp-14-399-2014.pdf
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spelling doaj-901eebf70d764fc7aff973e76ad4c1cc2020-11-24T23:22:20ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242014-01-0114139942610.5194/acp-14-399-2014The Atmospheric Infrared Sounder version 6 cloud productsB. H. Kahn0F. W. Irion1V. T. Dang2E. M. Manning3S. L. Nasiri4C. M. Naud5J. M. Blaisdell6M. M. Schreier7Q. Yue8K. W. Bowman9E. J. Fetzer10G. C. Hulley11K. N. Liou12D. Lubin13S. C. Ou14J. Susskind15Y. Takano16B. Tian17J. R. Worden18Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USADepartment of Atmospheric Sciences, Texas A&M University, College Station, TX, USAColumbia University, New York, NY, USAScience Applications International Corporation, NASA Goddard Space Flight Center, Greenbelt, MD, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJoint Institute for Regional Earth System Science and Engineering, University of California &ndash; Los Angeles, Los Angeles, CA, USAScripps Institution of Oceanography, University of California &ndash; San Diego, La Jolla, CA, USAJoint Institute for Regional Earth System Science and Engineering, University of California &ndash; Los Angeles, Los Angeles, CA, USANASA Goddard Space Flight Center, Greenbelt, MD, USAJoint Institute for Regional Earth System Science and Engineering, University of California &ndash; Los Angeles, Los Angeles, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAThe version 6 cloud products of the Atmospheric Infrared Sounder (AIRS) and Advanced Microwave Sounding Unit (AMSU) instrument suite are described. The cloud top temperature, pressure, and height and effective cloud fraction are now reported at the AIRS field-of-view (FOV) resolution. Significant improvements in cloud height assignment over version 5 are shown with FOV-scale comparisons to cloud vertical structure observed by the CloudSat 94 GHz radar and the Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP). Cloud thermodynamic phase (ice, liquid, and unknown phase), ice cloud effective diameter (<i>D</i><sub>e</sub>), and ice cloud optical thickness (&tau;) are derived using an optimal estimation methodology for AIRS FOVs, and global distributions for 2007 are presented. The largest values of &tau; are found in the storm tracks and near convection in the tropics, while <i>D</i><sub>e</sub> is largest on the equatorial side of the midlatitude storm tracks in both hemispheres, and lowest in tropical thin cirrus and the winter polar atmosphere. Over the Maritime Continent the diurnal variability of &tau; is significantly larger than for the total cloud fraction, ice cloud frequency, and <i>D</i><sub>e</sub>, and is anchored to the island archipelago morphology. Important differences are described between northern and southern hemispheric midlatitude cyclones using storm center composites. The infrared-based cloud retrievals of AIRS provide unique, decadal-scale and global observations of clouds over portions of the diurnal and annual cycles, and capture variability within the mesoscale and synoptic scales at all latitudes.http://www.atmos-chem-phys.net/14/399/2014/acp-14-399-2014.pdf
collection DOAJ
language English
format Article
sources DOAJ
author B. H. Kahn
F. W. Irion
V. T. Dang
E. M. Manning
S. L. Nasiri
C. M. Naud
J. M. Blaisdell
M. M. Schreier
Q. Yue
K. W. Bowman
E. J. Fetzer
G. C. Hulley
K. N. Liou
D. Lubin
S. C. Ou
J. Susskind
Y. Takano
B. Tian
J. R. Worden
spellingShingle B. H. Kahn
F. W. Irion
V. T. Dang
E. M. Manning
S. L. Nasiri
C. M. Naud
J. M. Blaisdell
M. M. Schreier
Q. Yue
K. W. Bowman
E. J. Fetzer
G. C. Hulley
K. N. Liou
D. Lubin
S. C. Ou
J. Susskind
Y. Takano
B. Tian
J. R. Worden
The Atmospheric Infrared Sounder version 6 cloud products
Atmospheric Chemistry and Physics
author_facet B. H. Kahn
F. W. Irion
V. T. Dang
E. M. Manning
S. L. Nasiri
C. M. Naud
J. M. Blaisdell
M. M. Schreier
Q. Yue
K. W. Bowman
E. J. Fetzer
G. C. Hulley
K. N. Liou
D. Lubin
S. C. Ou
J. Susskind
Y. Takano
B. Tian
J. R. Worden
author_sort B. H. Kahn
title The Atmospheric Infrared Sounder version 6 cloud products
title_short The Atmospheric Infrared Sounder version 6 cloud products
title_full The Atmospheric Infrared Sounder version 6 cloud products
title_fullStr The Atmospheric Infrared Sounder version 6 cloud products
title_full_unstemmed The Atmospheric Infrared Sounder version 6 cloud products
title_sort atmospheric infrared sounder version 6 cloud products
publisher Copernicus Publications
series Atmospheric Chemistry and Physics
issn 1680-7316
1680-7324
publishDate 2014-01-01
description The version 6 cloud products of the Atmospheric Infrared Sounder (AIRS) and Advanced Microwave Sounding Unit (AMSU) instrument suite are described. The cloud top temperature, pressure, and height and effective cloud fraction are now reported at the AIRS field-of-view (FOV) resolution. Significant improvements in cloud height assignment over version 5 are shown with FOV-scale comparisons to cloud vertical structure observed by the CloudSat 94 GHz radar and the Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP). Cloud thermodynamic phase (ice, liquid, and unknown phase), ice cloud effective diameter (<i>D</i><sub>e</sub>), and ice cloud optical thickness (&tau;) are derived using an optimal estimation methodology for AIRS FOVs, and global distributions for 2007 are presented. The largest values of &tau; are found in the storm tracks and near convection in the tropics, while <i>D</i><sub>e</sub> is largest on the equatorial side of the midlatitude storm tracks in both hemispheres, and lowest in tropical thin cirrus and the winter polar atmosphere. Over the Maritime Continent the diurnal variability of &tau; is significantly larger than for the total cloud fraction, ice cloud frequency, and <i>D</i><sub>e</sub>, and is anchored to the island archipelago morphology. Important differences are described between northern and southern hemispheric midlatitude cyclones using storm center composites. The infrared-based cloud retrievals of AIRS provide unique, decadal-scale and global observations of clouds over portions of the diurnal and annual cycles, and capture variability within the mesoscale and synoptic scales at all latitudes.
url http://www.atmos-chem-phys.net/14/399/2014/acp-14-399-2014.pdf
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