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AGU: Geophysical Research Letters

 

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  • Atmospheric Composition and Structure: Instruments and techniques

Abstract

Comparison of aerosol optical depth from four solar radiometers during the fall 1997 ARM intensive observation period

B. Schmid

Bay Area Environmental Research Institute, San Francisco, CA

J. Michalsky

State University of New York, Albany, NY

R. Halthore

Brookhaven National Laboratory, Upton, NY

M. Beauharnois

State University of New York, Albany, NY

L. Harrison

State University of New York, Albany, NY

J. Livingston

SRI International, Menlo Park, CA

P. Russell

NASA Ames Research Center, Moffett Field, CA

B. Holben

NASA Goddard Space Flight Center, Greenbelt, MD

T. Eck

Raytheon ITSS Corporation, Lanham, MD

A. Smirnov

Science Systems and Applications Inc., Lanham, MD

In the Fall of 1997 the Atmospheric Radiation Measurement (ARM) program conducted an Intensive Observation Period (IOP) to study aerosols. Five sun‐tracking radiometers were present to measure the total column aerosol optical depth. This comparison performed on the Southern Great Plains (SGP) demonstrates the capabilities and limitations of modern tracking sunphotometers at a location typical of where aerosol measurements are required. The key result was agreement in aerosol optical depth measured by 4 of the 5 instruments within 0.015 (rms). The key to this level of agreement was meticulous care in the calibrations of the instruments.

Received 26 April 1999; accepted 4 June 1999; .

Citation: Schmid, B., J. Michalsky, R. Halthore, M. Beauharnois, L. Harrison, J. Livingston, P. Russell, B. Holben, T. Eck, and A. Smirnov (1999), Comparison of aerosol optical depth from four solar radiometers during the fall 1997 ARM intensive observation period, Geophys. Res. Lett., 26(17), 2725–2728.

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