2004), An examination of the precipitation delivery mechanisms for Dolleman
The variability of size and source of significant precipitation events were studied at an Antarctic ice core drilling site: Dolleman Island (DI), located on the eastern coast of the Antarctic Peninsula. Significant precipitation events that occur at DI were temporally located in the ECMWF re-analysi...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.425.4133 2023-05-15T13:40:22+02:00 2004), An examination of the precipitation delivery mechanisms for Dolleman Andrew Russell Glenn R. Mcgregor Gareth J. Marshall The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.425.4133 http://bura.brunel.ac.uk/bitstream/2438/6032/5/Russell_et_al_2004_finalsubmitted.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.425.4133 http://bura.brunel.ac.uk/bitstream/2438/6032/5/Russell_et_al_2004_finalsubmitted.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://bura.brunel.ac.uk/bitstream/2438/6032/5/Russell_et_al_2004_finalsubmitted.pdf text ftciteseerx 2016-01-08T04:16:46Z The variability of size and source of significant precipitation events were studied at an Antarctic ice core drilling site: Dolleman Island (DI), located on the eastern coast of the Antarctic Peninsula. Significant precipitation events that occur at DI were temporally located in the ECMWF re-analysis data set, ERA-40. The annual and summer precipitation totals from ERA-40 at DI both show significant increases over the re-analysis period. Three dimensional backwards air parcel trajectories were then run for 5-days using the ECMWF ERA-15 wind fields. Cluster analyses were performed on two sets of these backwards trajectories: all days in the range 1979-1992 (the climatological timescale) and a subset of days when a significant precipitation event occurred. The principal air mass sources and delivery mechanisms were found to be the Weddell Sea via lee cyclogenesis, the South Atlantic when there was a weak Circumpolar Trough (CPT) and the South Pacific when the CPT was deep. The occurrence of precipitation bearing air masses arriving via a strong CPT was found to have a significant correlation with the Southern Annular Mode (SAM), however, the arrival of air masses from the same region over the climatological timescale Text Antarc* Antarctic Antarctic Peninsula Dolleman Island ice core Weddell Sea Unknown Antarctic Antarctic Peninsula Dolleman ENVELOPE(-60.733,-60.733,-70.616,-70.616) Dolleman Island ENVELOPE(-60.750,-60.750,-70.667,-70.667) Pacific The Antarctic Weddell Weddell Sea |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
The variability of size and source of significant precipitation events were studied at an Antarctic ice core drilling site: Dolleman Island (DI), located on the eastern coast of the Antarctic Peninsula. Significant precipitation events that occur at DI were temporally located in the ECMWF re-analysis data set, ERA-40. The annual and summer precipitation totals from ERA-40 at DI both show significant increases over the re-analysis period. Three dimensional backwards air parcel trajectories were then run for 5-days using the ECMWF ERA-15 wind fields. Cluster analyses were performed on two sets of these backwards trajectories: all days in the range 1979-1992 (the climatological timescale) and a subset of days when a significant precipitation event occurred. The principal air mass sources and delivery mechanisms were found to be the Weddell Sea via lee cyclogenesis, the South Atlantic when there was a weak Circumpolar Trough (CPT) and the South Pacific when the CPT was deep. The occurrence of precipitation bearing air masses arriving via a strong CPT was found to have a significant correlation with the Southern Annular Mode (SAM), however, the arrival of air masses from the same region over the climatological timescale |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Andrew Russell Glenn R. Mcgregor Gareth J. Marshall |
spellingShingle |
Andrew Russell Glenn R. Mcgregor Gareth J. Marshall 2004), An examination of the precipitation delivery mechanisms for Dolleman |
author_facet |
Andrew Russell Glenn R. Mcgregor Gareth J. Marshall |
author_sort |
Andrew Russell |
title |
2004), An examination of the precipitation delivery mechanisms for Dolleman |
title_short |
2004), An examination of the precipitation delivery mechanisms for Dolleman |
title_full |
2004), An examination of the precipitation delivery mechanisms for Dolleman |
title_fullStr |
2004), An examination of the precipitation delivery mechanisms for Dolleman |
title_full_unstemmed |
2004), An examination of the precipitation delivery mechanisms for Dolleman |
title_sort |
2004), an examination of the precipitation delivery mechanisms for dolleman |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.425.4133 http://bura.brunel.ac.uk/bitstream/2438/6032/5/Russell_et_al_2004_finalsubmitted.pdf |
long_lat |
ENVELOPE(-60.733,-60.733,-70.616,-70.616) ENVELOPE(-60.750,-60.750,-70.667,-70.667) |
geographic |
Antarctic Antarctic Peninsula Dolleman Dolleman Island Pacific The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Peninsula Dolleman Dolleman Island Pacific The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Peninsula Dolleman Island ice core Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Dolleman Island ice core Weddell Sea |
op_source |
http://bura.brunel.ac.uk/bitstream/2438/6032/5/Russell_et_al_2004_finalsubmitted.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.425.4133 http://bura.brunel.ac.uk/bitstream/2438/6032/5/Russell_et_al_2004_finalsubmitted.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766132808726609920 |