Comparison of ultraviolet bidirectional reflectance distribution function (BRDF) measurements of diffusers used in the calibration of the Total Ozone Mapping Spectrometer (TOMS)

James J. Butler; Hongwoo Park; Patricia Yvonne Barnes; Edward A. Early; Carina van Eijk-Olij; A. Erik Zoutman; Stefanie van Buller-Leeuwen; Jos Groote Schaarsberg

doi:10.1117/12.463013

8 April 2003 Comparison of ultraviolet bidirectional reflectance distribution function (BRDF) measurements of diffusers used in the calibration of the Total Ozone Mapping Spectrometer (TOMS)

James J. Butler, Hongwoo Park, Patricia Yvonne Barnes, Edward A. Early, Carina van Eijk-Olij, A. Erik Zoutman, Stefanie van Buller-Leeuwen, Jos Groote Schaarsberg

Author Affiliations +

Proceedings Volume 4881, Sensors, Systems, and Next-Generation Satellites VI; (2003) https://doi.org/10.1117/12.463013
Event: International Symposium on Remote Sensing, 2002, Crete, Greece

Abstract

The measurement and long-term monitoring of global total ozone by ultraviolet albedo measuring satellite instruments require accurate and precise determination of the Bi-directional Reflectance Distribution Function (BRDF) of laboratory-based diffusers used in the pre-launch calibration of those instruments. To assess the ability of laboratories to provide accurate UltraViolet (UV) diffuse BRDF measurements, a BRDF measurement comparison was initiated by the NASA Total Ozone Mapping Spectrometer (TOMS) Project. From December 1998 to September 1999, NASA's Goddard Space Flight Center (GSFC), TPD TNO (formerly the TNO Institute of Applied Physics), and the National Institute of Standards and Technology (NIST) made BRDF measurements on four Spectralon diffusers used in the pre-launch calibration of three TOMS instruments. The diffusers were measured at the six TOMS wavelengths and at the incident and scatter angles used in the TOMS pre-launch calibration. The participation of GSFC, TPD TNO, and NIST in the comparison establishes a link between the diffuser calibrations of the on-orbit TOMS instruments, the Ozone Monitoring Instrument (OMI), and a national standards laboratory. The results of the comparison show that all of the BRDF measurements on the four diffusers agreed within +0.85 % to -1.10 % of the average BRDF and were well within the combined measurement uncertainties of the participating laboratories.

Citation Download Citation

James J. Butler, Hongwoo Park, Patricia Yvonne Barnes, Edward A. Early, Carina van Eijk-Olij, A. Erik Zoutman, Stefanie van Buller-Leeuwen, and Jos Groote Schaarsberg "Comparison of ultraviolet bidirectional reflectance distribution function (BRDF) measurements of diffusers used in the calibration of the Total Ozone Mapping Spectrometer (TOMS)", Proc. SPIE 4881, Sensors, Systems, and Next-Generation Satellites VI, (8 April 2003); https://doi.org/10.1117/12.463013

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available