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The Micro-Pulse Lidar Network (MPL-Net)In the early 1990s, the first small, eye-safe, and autonomous lidar system was developed, the Micro-pulse Lidar (MPL). The MPL has proven to be useful in the field because it can be automated, runs continuously (day and night), is eye-safe, can easily be transported and set up, and has a small field-of-view which limits multiple scattering concerns. The MPL acquires signal profiles of backscattered laser light from aerosols and clouds. The signals are analyzed to yield multiple layer heights, optical depths of each layer, average extinction-to-backscatter ratio of each layer, and profiles of extinction in each layer. The MPL has been used in a wide variety of field studies over the past 10 years, leading to nearly 20 papers and many conference presentations. In 2000, a new project using MPL systems was started at NASA Goddard Space Flight Center. The MPL-Net project is currently working to establish a worldwide network of MPL systems, all co-located with NASA's AERONET sunphotometers for joint measurements of optical depth and sky radiance. Automated processing algorithms have been developed to produce data products on a next day basis for all sites and some field experiments. Initial results from the first several sites are shown, along with aerosol data collected during several major field campaigns. Measurements of the aerosol extinction-to-backscatter ratio at several different geographic regions, and for various aerosol types are shown. This information is used to improve the construction of look up tables of the ratio, needed to process aerosol profiles acquired with satellite based lidars.
Document ID
20020083050
Document Type
Conference Paper
Authors
Welton, Ellsworth J. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Campbell, James R. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Berkoff, Timothy A. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Spinhirne, James D. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Tsay, Si-Chee (NASA Goddard Space Flight Center Greenbelt, MD United States)
Holben, Brent (NASA Goddard Space Flight Center Greenbelt, MD United States)
Shiobara, Masataka (NASA Goddard Space Flight Center Greenbelt, MD United States)
Starr, David OC.
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Lasers and Masers
Meeting Information
Twenty-first International Laser Radar Conference (ILRC21)(Quebec City, Quebec)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.