Share Email Print

Proceedings Paper

Air-sea fluxes from satellite sensors: calibration, time, space, and scale transitions
Author(s): Gad Levy
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A number of spaceborne microwave sensors have been launched in the last decade, significantly increasing the quantity and quality of observations over the oceans that can be used to study air-sea interactions. These observations, when combined with conventional in-situ observations and model output, can be used to improve air-sea flux estimates and for model initialization and parameterization. However, because of the different characteristics, sampling frequency and resolution, and sensor accuracy, the calibration of satellite observations against in-situ observations is discussed. Special attention is paid to time, space, and scale transitions, and to formulating a velocity scale for use in large scale models. Specifically, the paper reviews recent observational and modeling studies that show that a considerable subgrid air-sea flux may be generated by directional variability in the near surface wind field. It then describes: (i) temporal-spatial conversion methods that allow proper calibration of satellite observations against in-situ data and synergistic use of heterogeneous data sets for estimating flux enhancement; and (ii) resolution dependent velocity scale terms that can be formulated from scatterometer observations and incorporate in General Circulation Models bulk formulas.

Paper Details

Date Published: 22 December 2000
PDF: 11 pages
Proc. SPIE 4172, Remote Sensing of the Ocean and Sea Ice 2000, (22 December 2000); doi: 10.1117/12.411702
Show Author Affiliations
Gad Levy, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 4172:
Remote Sensing of the Ocean and Sea Ice 2000
Charles R. Bostater; Rosalia Santoleri, Editor(s)

© SPIE. Terms of Use
Back to Top