Synoptic cryosphere—atmosphere interactions in the Northern Hemisphere from DMSP image analysis†
作者:
A. M. CARLETON,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1985)
卷期:
Volume 6,
issue 1
页码: 239-261
ISSN:0143-1161
年代: 1985
DOI:10.1080/01431168508948437
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A climatology of Northern Hemisphere cyclonic cloud vortices is developed from high-resolution Defense Meteorological Satellite Program (DMSP) infrared imagery for mid-season months. The technique which is described involves pattern recognition using a detailed vortex classification system. Variations in hemispheric frequencies of successive vortex types are dominantly seasonal rather than latitudinal and imply a close association with surface (mainly cryosphere) variations. More extensive sea ice or snow cover in April and January is associated with increased cyclogenesis, indicating enhanced surface-atmosphere feedback. A significant relationship exists between cloud-vortex variations and the sea ice boundary, but not with the continental snowline
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