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Clouds of ammonia ice - Laboratory measurements of the single-scattering propertiesA new apparatus for the growth of clouds of ammonia and water ice has been developed which represents an improvement over the one constructed by Holmes (1981). Better thermal control of the cloud chamber has been achieved so that colder temperature relevant to the outer planets' atmospheres could be reached. The angular resolution of the scattering measurements has been improved from 10 deg to about 2 deg. A rotating filter wheel combined with a much larger computer allows a complete data set to be collected in three colors once per second. This capability is important in monitoring cloud properties as they change with time and in collecting data on larger crystals which can fall through the beam in a few seconds.
Document ID
19930034921
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Pope, Shelly K.
(NASA Ames Research Center Moffett Field, CA; Arizona Univ., Tucson, United States)
Tomasko, Martin G.
(NASA Ames Research Center Moffett Field, CA, United States)
Williams, Michael S.
(NASA Ames Research Center Moffett Field, CA, United States)
Perry, Marcus L.
(NASA Ames Research Center Moffett Field, CA, United States)
Doose, Lyn R.
(NASA Ames Research Center Moffett Field, CA, United States)
Smith, Peter H.
(Arizona Univ. Tucson, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1992
Publication Information
Publication: Icarus
Volume: 100
Issue: 1
ISSN: 0019-1035
Subject Category
Lunar And Planetary Exploration
Accession Number
93A18918
Distribution Limits
Public
Copyright
Other

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