The arm program's water vapor intensive observation periods

From: Bulletin of the American Meteorological Society | Date: February 1, 2003| Author: | Copyright information

Overview, Initial Accomplishments, and Future Challenges

Results from a series of experiments focused on the lower troposphere have pointed the way to significantly improving the accuracy of water vapor measurements.

Water vapor is the dominant greenhouse gas in the atmosphere. It also plays an important role in the life cycle of clouds and precipitation, the transfer of latent and sensible heat, and in atmospheric chemistry. Unlike long-lived trace gases (e.g., CO2, N^sub 2^O, CH^sub 4^), water vapor varies by several orders of magnitude with height, and can change by a factor of 2 or more ...

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