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Robert D. Allen (through Oct. 1)
(757) 864-6176

Kimberly W. Land (after Oct. 1)
(757) 864-9885

For Release: Sept. 29, 1999

RELEASE NO. 99-067

Lessons Learned from the Skies Above

Tropical rainfall is vital to the lives and welfare of humans, and it plays a crucial role in the dynamics of the global atmospheric circulation. By using satellites to study the atmosphere and global climate, we know what to expect from regional effects of global temperatures and moisture changes.

Dr. Christian Kummerow, project scientist for the Tropical Rainfall Measuring Mission (TRMM) satellite at NASA Goddard Space Flight Center in Greenbelt, Md., will present "Clouds, Rain and the Global Climate: What are we learning from TRMM?" at a colloquium at 2 p.m. Tuesday,
Oct. 5, at NASA Langley's H.J.E Reid Conference Center.

Media briefing:
A media briefing will be held at 1:15 p.m. in the Wythe Room of the Reid Conference Center, 14 Langley Blvd. at NASA Langley. Media who wish to attend the briefing should contact Bob Allen, at (757) 864-6176 until Oct. 1, and Kimberly W. Land, at (757) 864-9885, after Oct. 1.

Since its launch in late 1997, the TRMM satellite has yielded important interim results after nearly two years of successful flight operations. Dr. Kummerow will summarize the questions and report where the TRMM science team is with regards to answering some of these important scientific challenges.

Dr. Kummerow is an expert in problems dealing with the transfer of radiation (heat) through non- uniform cloud systems and determining rainfall rates from space-borne sensors such as the three TRMM primary rainfall instruments. He joined Goddard Space Flight Center as a postdoctoral fellow in 1987, and was recruited to begin work on rainfall retrieval algorithms for the TRMM mission.

He became the TRMM deputy project scientist for data systems in 1992, the TRMM deputy project scientist in 1994, and began his current position as project scientist at the time of TRMM's launch in 1997.

The general public is invited to the Sigma Series lecture at the Virginia Air and Space Center that evening, at 7:30 p.m.

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