Descent from the polar mesosphere and anomalously high stratopause observed in 8 years of water vapor and temperature satellite observations by the Odin Sub-Millimeter Radiometer
Artikel i vetenskaplig tidskrift, 2010

Using newly analyzed mesospheric water vapor and temperature observations from the Sub-Millimeter Radiometer instrument aboard the Odin research satellite over the period 2001-2009, we present evidence for an anomalously strong descent of dry mesospheric air from the lower mesosphere into the upper stratosphere in the winters of 2004, 2006, and 2009. In the three cases, the descent follows the recovery of the upper stratospheric polar vortex from a major midwinter stratospheric sudden warming. It is also accompanied by the rapid formation of an anomalously warm polar mesospheric layer, i.e., an elevated polar stratopause, near 75 km, and its slower descent to prewarming level (near 1 hPa) over 1.5-2 months. These three winters stand out in the current record of Odin/Sub-Millimeter Radiometer observations started in July 2001.

transport

circulation

retrieval

carbon-monoxide

winter

wave

vortex

Författare

Y. J. Orsolini

Norsk institutt for luftforskning (NILU)

Joachim Urban

Chalmers, Institutionen för radio- och rymdvetenskap, Global miljömätteknik och modellering

Donal Murtagh

Chalmers, Institutionen för radio- och rymdvetenskap, Global miljömätteknik och modellering

Stefan Lossow

Chalmers, Institutionen för radio- och rymdvetenskap, Global miljömätteknik och modellering

V. Limpasuvan

Coastal Carolina University

Journal of Geophysical Research

01480227 (ISSN) 21562202 (eISSN)

Vol. 115 12 D12305

Ämneskategorier

Geovetenskap och miljövetenskap

DOI

10.1029/2009JD013501

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Senast uppdaterat

2018-04-11