Identification of the sun glint in apt pictures by computation of its azimuth and distance

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Published: Oct 1, 1971
DOI: https://doi.org/10.22201/igeof.2954436xe.1971.11.4.1641
Keywords:
Reflexion, Sun rays, Meteorological satellites

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Pedro A. Mosiño
Universidad Nacional Autónoma de México, Instituto de Geofísica, Ciudad Universitaria, México

Abstract

The Sun rays' reflexion over oceanic arcas is very often obtained in APT pictures as a brilliant spot (Sun glint), whkh is easily discernible when found near the edge of a continental arca, giving then a very clear-cut delineation of the coast. However, when there is an extensive cloud cover, the Sun glint laying in cloud breaks or on cloudy arcas may also very easily be confused with a rounded cloud system. Therefore, it is convenient to be able to locate it unmistakably by some means in order to discount its effects upoil interpretation and usage of APT cloud pictures from meteorological satellites

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Mosiño, P. A. (1971). Identification of the sun glint in apt pictures by computation of its azimuth and distance. Geofisica Internacional, 11(4), 175–182. https://doi.org/10.22201/igeof.2954436xe.1971.11.4.1641
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Vol. 11 No. 4 (1971): October 1, 1971
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Author Biography

Pedro A. Mosiño, Universidad Nacional Autónoma de México, Instituto de Geofísica, Ciudad Universitaria, México

The Sun rays' reflexion over oceanic arcas is very often obtained in APT pictures as a brilliant spot (Sun glint), whkh is easily discernible when found near the edge of a continental arca, giving then a very clear-cut delineation of the coast. However, when there is an extensive cloud cover, the Sun glint laying in cloud breaks or on cloudy arcas may also very easily be confused with a rounded cloud system. Therefore, it is convenient to be able to locate it unmistakably by some means in order to discount its effects upoil interpretation and usage of APT cloud pictures from meteorological satellites.

References

ESSA. 1965. APT Users' Guide. Washington, D. C. (U.S. Department of Commerce), I vol.

LONDQUIST, C.A. 1966. Space Science. New York (McGraw Hill). I vol., il.

U.S. HYDROGRAPHIC OFFICE. n.d. TABLES 214. Washington, D.C.

W.M.O. n.d. The Use of Satellite Pictures in Weather Analysis and Forecasting. Technical Note No. 75.