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COMMENTS

COMMENTS to cumulus activity, and spuriously produces the iris Comment on effect in Lindzen et al. (2001, hereafter LCH). It is on this assertion that we will focus. Although the Bulle- "N o Evidence for Iris" tin chose to refer to HM02 as "a more careful analy- sis," HM02's arguments are fundamentally dependent —RICHAR D S . LINDZEN on ignoring important caveats in LCH. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, DISTRIBUTIO N OF BRIGHTNES S TEM- Cambridge, Massachusetts PERATURE S OF CLOUDY REGIONS. Stratiform clouds associated with lifting of air (as —MING-DA H CHO U AND ARTHU R Y . HO U Laboratory for Atmospheres, opposed to detrainment from cumulus towers) tend NASA Goddard Space Flight Center, to have smooth linear patterns of brightness tempera- Greenbelt, Maryland ture. Cirrus originating from convective towers tend to have more concentric patterns with identifiable cores. High-resolution images from Japan's Geosta- numbe r of points put forth by Hartmann and tionary Meteorological Satellite-5 (hereafter referred Michelsen (2002; hereafter HM02) are, in fact, to as GMS) clearly show dominance of the latter - irrelevant to the iris effect (i.e., their discussion even at latitudes beyond 20°. This is evident in http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the American Meteorological Society American Meteorological Society

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Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0477
DOI
10.1175/1520-0477(2002)083<1345:CONEFI>2.3.CO;2
Publisher site
See Article on Publisher Site

Abstract

to cumulus activity, and spuriously produces the iris Comment on effect in Lindzen et al. (2001, hereafter LCH). It is on this assertion that we will focus. Although the Bulle- "N o Evidence for Iris" tin chose to refer to HM02 as "a more careful analy- sis," HM02's arguments are fundamentally dependent —RICHAR D S . LINDZEN on ignoring important caveats in LCH. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, DISTRIBUTIO N OF BRIGHTNES S TEM- Cambridge, Massachusetts PERATURE S OF CLOUDY REGIONS. Stratiform clouds associated with lifting of air (as —MING-DA H CHO U AND ARTHU R Y . HO U Laboratory for Atmospheres, opposed to detrainment from cumulus towers) tend NASA Goddard Space Flight Center, to have smooth linear patterns of brightness tempera- Greenbelt, Maryland ture. Cirrus originating from convective towers tend to have more concentric patterns with identifiable cores. High-resolution images from Japan's Geosta- numbe r of points put forth by Hartmann and tionary Meteorological Satellite-5 (hereafter referred Michelsen (2002; hereafter HM02) are, in fact, to as GMS) clearly show dominance of the latter - irrelevant to the iris effect (i.e., their discussion even at latitudes beyond 20°. This is evident in

Journal

Bulletin of the American Meteorological SocietyAmerican Meteorological Society

Published: Sep 1, 2002

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