NASA Scientific and Technical Aerospace Reports

effort to study the monsoons. The objectives of CIMS are (a) To provide a better understanding of fundamental physical
processes (diurnal cycle, annual cycle, and intraseasonal oscillations) in monsoon regions around the world and (b) To
demonstrate the synergy and utility of CEOP data in providing a pathway for model physics evaluation and improvement. In
this talk, I will present the basic concepts of CIMS and the key scientific problems facing monsoon climates and provide
examples of common monsoon features, and possible monsoon induced teleconnections linking different parts of the world.
Author
Climate Models; Monsoons; Teleconnections (Meteorology); Hydrology
20040074256 Maryland Univ., College Park, MD, USA
What is the Spatial Relationship between the Water Minimum and Convection in the TTL?
Dessler, A. E.; Bhartia, P. K., Technical Monitor; 2003; 1 pp.; In English; Fall AGU 2003 Meeting, 8-12 Dec. 2003, San
Francisco, CA, USA; No Copyright; Avail: Other Sources; Abstract Only
Recently, it has been argued that the region where water vapor is a minimum in the tropical tropopause layer is located
downstream of convection. If true, this would suggest that in situ dehydration was playing a role in regulating water vapor
near the tropical tropopause. In this presentation, I will use UARS MLS water vapor measurements, as well as various proxies
for convection, to argue that the water vapor minimum is closely collocated with convection. I will also provide potential
explanations as to why previous analyses have reached a different conclusion.
Author
Water Vapor; Tropopause; Dehydration; Convection
20040074257 NASA Goddard Space Flight Center, Greenbelt, MD, USA
A Comparison of TOMS Version 8 Total Column Ozone Data with Data from Groundstations
Labow, G. J.; McPeters, R. D.; Bhartia, P. K.; [2004]; 1 pp.; In English; Fall AGU 2003, 8-12 Dec. 2003, San Francisco, CA,
USA; No Copyright; Avail: Other Sources; Abstract Only
The Nimbus-7 and Earth Probe Total Ozone Mapping Spectrometer (TOMS) data have been reprocessed with a new
retrieval algorithm, (Version 8) and an updated calibration procedure. These data have been systematically compared to total
ozone data from Brewer and Dobson spectrophotometers for 73 individual ground stations. The comparisons were made as
a function of latitude, solar zenith angle, reflectivity and total ozone. Results show that the accuracy of the TOMS retrieval’is
much improved when aerosols are present in the atmosphere, when snow/ice and sea glint are present, and when ozone in the
northern hemisphere is extremely low. TOMS overpass data are derived from the single TOMS best match measurement,
almost always located within one degree of the ground station and usually made within an hour of local noon. The version
8 Earth Probe TOMS ozone values have decreased by an average of about 1% due to a much better understanding of the
calibration of the instrument. The remaining differences between TOMS and ground stations suggest that there are still small
errors in the TOMS retrievals. But if TOMS is used as a transfer standard to compare ground stations, the large
station-to-station differences suggest the possibility of significant instrument errors at some ground stations.
Author
Aerosols; Total Ozone Mapping Spectrometer; Calibrating; Data Acquisition
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LIFE SCIENCES (GENERAL)
Includes general research topics related to plant and animal biology (non-human); ecology; microbiology; and also the origin,
development, structure, and maintenance of animals and plants in space and related environmental conditions. For specific topics in life
sciences see categories 52 through 55.
20040068272 American Inst. of Aeronautics and Astronautics, Reston, VA, USA
Studying Gene Changes in Space
Flinn, Edward D.; Aerospace America; April 2004; ISSN 0740-722X; Volume 42, No. 4, pp. 24-25; In English; Copyright;
Avail: Other Sources
An intriguing pair of test subjects are the first to be used as biological testing begins again in space. Bremer’s yeast and
fruit flies wi11 spearhead NASA s resumption of experiments on hoard the International Space Station In an experiment with
brewer s yeast. typically used to make bread and beer, NASA scientists wi11 seek to better understand the effects of
microgravity on genes.A different experiment will study the changes in several generations of fruit flies that NASA-supported
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