Seasonal and interannual studies of vortices in sea surface temperature data

Autor:	Q. Yang, Arthur J. Mariano, Robert Evans, Otis B. Brown, Edward H. Ryan, B. Parvin
Rok vydání:	2004
Předmět:	Meteorology Advanced very-high-resolution radiometer Ocean current Spatial distribution Instability Physics::Geophysics Boundary current Vortex Sea surface temperature Climatology General Earth and Planetary Sciences Radiometry Physics::Atmospheric and Oceanic Physics Geology
Zdroj:	International Journal of Remote Sensing. 25:1371-1376
ISSN:	1366-5901 0143-1161
DOI:	10.1080/01431160310001592319
Popis:	An algorithm for calculating feature displacement velocities and for detecting vortices has been applied to 13 years of sea surface temperature data derived from Advanced Very High Resolution Radiometer (AVHRR) data. A unique global event database for seasonal and interannual studies of the spatial distribution of oceanic vortices was created for the years 1986–1998. The results indicate that (1) the number of vortices in each season is fairly constant from year to year in each hemisphere—however, their preferred locations change on seasonal to interannual time-scales; (2) the maximum number of vortices were detected in the summer and in the winter in all oceans and the minimum number were detected in the autumn; and (3) the distribution of the spatial density function shows preferred localizations such as 40° S, the tropical instability region, marginal seas, western boundary and eastern boundary current regimes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::874f4eb813010ceeea7ff5e68ff41756 https://doi.org/10.1080/01431160310001592319 Zobrazit plný text záznamu