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  Statistical downscaling of monthly mean North Atlantic air-pressure to sea level anomalies in the Baltic Sea

Heyen, H., Zorita, E., & von Storch, H. (1996). Statistical downscaling of monthly mean North Atlantic air-pressure to sea level anomalies in the Baltic Sea. Tellus Series A-Dynamic Meteorology and Oceanography, 48, 312-323. doi:10.1034/j.1600-0870.1996.t01-1-00008.x.

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 Creators:
Heyen, Hauke1, Author
Zorita, Eduardo2, Author
von Storch, Hans1, Author
Affiliations:
1MPI for Meteorology, Max Planck Society, Bundesstraße 53, 20146 Hamburg, DE, ou_913545              
2LODYC, Université Pierre et Marie Curie, 4 Place Jussieu Tour 14 75252 Paris CEDEX 05, ou_persistent22              

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 Abstract: The term ''downscaling'' describes a procedure in which information about a process with a certain characteristic scale is derived from other processes with larger scales. The present paper identifies a relationship between the main components of the North Atlantic air-pressure anomalies at sea-level (characteristic length-scale > 1000 km) and the sea level anomalies at several Baltic Sea gauges (10 km-100 km) in winter. Monthly means from 20 observed winters are used to fit a statistical model. that describes the dependence between both parameters. Further observations from this century are used to validate this model, which is able to estimate sea level anomalies from the air-pressure held to a good level of approximation. Sea level anomalies with periods from months to decades are reproduced well. As main Forcing For the sea level anomalies, wind-stress with a strong zonal component is identified. For the past 89 years, we found that a slight decrease of mean sea level was induced by air-pressure. A slight increase is found when air-pressure from a GCM ''greenhouse'' experiment is downscaled.

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Language(s): eng - English
 Dates: 1996
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Tellus Series A-Dynamic Meteorology and Oceanography
  Other : Tellus Ser. A-Dyn. Meteorol. Oceanol.
Source Genre: Journal
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Publ. Info: Copenhagen, DK : Blackwell Munksgaard
Pages: - Volume / Issue: 48 Sequence Number: - Start / End Page: 312 - 323 Identifier: ISSN: 0280-6495
CoNE: https://pure.mpg.de/cone/journals/resource/954925506307

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Title: Report / Max-Planck-Institut für Meteorologie
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Publ. Info: Hamburg : Max-Planck-Institut für Meteorologie
Pages: - Volume / Issue: 150 Sequence Number: - Start / End Page: - Identifier: -