GACP Datasets

Ferrare Dataset

Two airborne lidar systems operated by NASA Langley Research Center have measured aerosol backscattering profiles over various areas of the world. Data are available from a number of experiments listed below in the format:

year; experiment; base(s) of flight operations; location of data; type of aerosol profiles; airborne lidar instrument

1988; Arctic Boundary Layer Experiment (Able-3A); Barrow & Bethel, Alaska; Langley DAAC; RSR; Airborne DIAL
1990; Arctic Boundary Layer Experiment (Able-3B); Hudson Bay, Canada; Langley DAAC; RSR; Airborne DIAL
1991; Pacific Exploratory Mission - West A (PEM-West-A); Guam, Hong Kong, Tokyo; Langley DAAC and GTE web site; RSR; Airborne DIAL
1992; Transport & Atmos. Chem. Near Equator (Trace-A); Brazil, Namibia, S. Africa; Langley DAAC and GTE web site; RSR; Airborne DIAL
1994; Pacific Exploratory Mission - West B (PEM-West-B); Guam, Hong Kong, Tokyo; Langley DAAC and GTE web site; RSR; Airborne DIAL
1995; LASE Validation Experiment; Wallops Island, Virginia; Langley DAAC; ASR; LASE
1996; Tropospheric Aerosol Radiative Forcing Observational Experiment (TARFOX); Wallops Island, Virginia; Langley DAAC; ASR; LASE
1996; Pacific Exploratory Mission - Tropics-A (PEM-Tropics A); Fiji, New Zealand, Tahiti; Langley DAAC and GTE web site; ASR; Airborne DIAL
1997; Southern Great Plains (SGP97) Experiment; Oklahoma City, Oklahoma; Langley DAAC; ASR; LASE
1997; SASS Ozone and NOx Experiment (SONEX); Azores, Bangor, Shannon; CD-ROM also at Ames; ASR; Airborne DIal
1998; Convection and Moisture Experiment-3; Cocoa Beach, Florida; Langley DAAC by 7/1/99; ASR; LASE

RSR = relative aerosol scattering , ASR = atmospheric scattering ratio

The wavelengths for these measurements are 815 nm (LASE), and 600 and 1064 nm (Airborne DIAL). Relative aerosol scattering profiles are lidar return signals that have been background subtracted, and range square corrected. The atmospheric scattering ratio signals are further processed and are the ratio of total (molecular+aerosol+cloud) scattering/molecular scattering.

The data at the Langley DAAC can be accessed via the web site at http://eosweb.larc.nasa.gov/HPDOCS/index.html
The GTE web site is http://www-gte.larc.nasa.gov/
The SONIX web site is http://telsci.arc.nasa.gov/~sonex/

Further information regarding these lidar instruments and measurements can also be found at http://asd-www.larc.nasa.gov/lidar/lidar.html

Questions about these data can also be addressed to Rich Ferrare (r.ferrare@larc.nasa.gov) or Ed Browell (e.v.browell@larc.nasa.gov).

Dr. Rich Ferrare
Chemistry and Dynamics Branch/Atmospheric Sciences Division
NASA/Langley Research Center
Mail Stop 401A
Building 1250/Room 135
Hampton, VA 23681-0001

r.ferrare@larc.nasa.gov
Phone: 757-864-9443
Fax: 757-864-7790
Lidar Home Page: http://asd-www.larc.nasa.gov/lidar/lidar.html