Water vapor measurements by Raman lidar during the ARM 1997 Water Vapor Intensive Observation Period

The Department of Energy's Atmospheric Radiation Measurement (ARM) program initiated a series of three intensive operating periods (IOPs) at its Cloud and Radiation Testbed (CART) site in northern Oklahoma. The goal of these IOPs is to improve and validate the state-of-the-art capabilities in m...

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Published inIGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174) Vol. 4; pp. 2155 - 2157 vol.4
Main Authors Turner, D.D., Whiteman, D.N., Evans, K.D., Melfi, S.H., Goldsmith, J.E.M., Schwemmer, G.K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1998
Subjects
Atmospheric measurements
Clouds
Energy measurement
Instruments
Laser radar
Microwave radiometry
NASA
Poles and towers
Terrestrial atmosphere
Testing
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Summary:The Department of Energy's Atmospheric Radiation Measurement (ARM) program initiated a series of three intensive operating periods (IOPs) at its Cloud and Radiation Testbed (CART) site in northern Oklahoma. The goal of these IOPs is to improve and validate the state-of-the-art capabilities in measuring water vapor. To date, two of the planned three IOPs have occurred: the first was in September of 1996, with an emphasis on the lowest km, while the second was conducted from September-October 1997 with a focus on both the upper troposphere and lowest km. The ARM CART site is the home of several different water vapor measurement systems. These systems include a Raman lidar, a microwave radiometer, a radiosonde launch site, and an instrumented tower. During these IOPs, additional instrumentation was brought to the site to augment the normal measurements in an attempt to characterize the CART instruments and to address the need to improve water vapor measurement capabilities. Some of the instruments brought to the CART site include a scanning Raman lidar system from NASA/GSFC, additional microwave radiometers from NOAA/ETL, a chilled mirror that was flown on a tethersonde and kite system, and dewpoint hygrometer instruments flown on the North Dakota Citation. This paper focuses on the Raman lidar intercomparisons from the second IOP.
ISBN:9780780344037
0780344030
DOI:10.1109/IGARSS.1998.703771