Eastern Antarctic Peninsula precipitation delivery mechanisms: Process studies and back trajectory evaluation

The atmospheric circulation patterns that result in precipitation events at a site on the eastern Antarctic Peninsula (AP) are investigated using back trajectories (BTs) driven by ERA-40 data. Moisture delivery occurs from the east and west depending on the location of blocking events in the South A...

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Bibliographic Details
Published in:Atmospheric Science Letters
Main Authors: Russell, Andrew, McGregor, Glenn R., Marshall, Gareth J.
Format: Article in Journal/Newspaper
Language:English
Published: 2008
Subjects:
Dolleman Island
ERA-40
Moisture transport
Antarctic
Antarctic Peninsula
Dolleman
Pacific
Antarc*
Online Access:https://research.manchester.ac.uk/en/publications/aff15076-8d4a-4089-a843-9ba9f14c7cf2
https://doi.org/10.1002/asl.190
http://www3.interscience.wiley.com/cgi-bin/fulltext/119879138/PDFSTART
Description
Summary:The atmospheric circulation patterns that result in precipitation events at a site on the eastern Antarctic Peninsula (AP) are investigated using back trajectories (BTs) driven by ERA-40 data. Moisture delivery occurs from the east and west depending on the location of blocking events in the South Atlantic and Pacific Oceans. Observations are sparse in this region, so our process studies compare the trajectories (and the ERA-40 fields from which they were derived) with advanced very high resolution radiometer (AVHRR) satellite images. It is found that the trajectories represent these transport mechanisms very well and that they are relatively insensitive to the initial trajectory elevation. Copyright © 2008 Royal Meteorological Society.

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