Vol. 19: Case Studies for SeaWiFS Calibration and Validation, Part 2.
Citation:
McClain, C.R., R.S. Fraser, J.T. McLean, M. Darzi, J.K. Firestone, F.S. Patt, B.D. Schieber, R.H. Woodward,
E-n. Yeh, S. Mattoo, S.F. Biggar, P.N. Slater, K.J. Thome, A.W. Holmes, R.A. Barnes, and K.J. Voss, 1994:
Case Studies for SeaWiFS Calibration and Validation, Part 2. NASA Tech. Memo. 104566, Vol. 19, S.B.
Hooker, E.R. Firestone, and J.G. Acker, Eds., NASA Goddard Space Flight Center, Greenbelt, Maryland, 73 pp.
This document provides brief reports, or case studies, on a number of investigations and data set
development activities sponsored by the Calibration and Validation Team (CVT) within the Sea-viewing Wide
Field-of-view Sensor (SeaWiFS) Project. Chapter 1 is a comparison the atmospheric correction of Coastal Zone
Color Scanner (CZCS) data using two independent radiative transfer formulations. Chapter 2 is a study on lunar
reflectance at the SeaWiFS wavelengths which was useful in establishing the SeaWiFS lunar gain. Chapter 3
reports the results of the first ground-based solar calibration of the SeaWiFS instrument. The experiment was
repeated in the fall of 1993 after the instrument was modified to reduce stray light; the results from the second
experiment will be provided in the next case studies volume. Chapter 4 is a laboratory experiment using trap
detectors which may be useful tools in the calibration round-robin program. Chapter 5 is the original data
format evaluation study conducted in 1992 which outlines the technical criteria used in considering three
candidate formats, the Hierarchical Data Format (HDF), the Common Data Format (CDF) and the network CDF
(netCDF). Chapter 6 summarizes the meteorological data sets accumulated during the first three years of CZCS
operation which are being used for initial testing of the operational SeaWiFS algorithms and systems and would
be used during a second global processing of the CZCS data set. Chapter 7 describes how near-real time surface
meteorological and total ozone data required for the atmospheric correction algorithm will be retrieved and
processed. Finally, Chapter 8 is a comparison of surface wind products from various operational meteorological
centers and field observations. Surface winds are used in the atmospheric correction scheme to estimate glint
and foam radiances.
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