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PICTURE OF THE MONTH: Multilevel Cloud Structures over Svalbard

Dörnbrack, Andreas and Gisinger, Sonja and Pitts, Michael and Poole, Lamont and Maturilli, Marion (2017) PICTURE OF THE MONTH: Multilevel Cloud Structures over Svalbard. Monthly Weather Review, 145 (4), pp. 1149-1159. American Meteorological Society. DOI: 10.1175/MWR-D-16-0214.1 ISSN 0027-0644

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Official URL: http://journals.ametsoc.org/doi/pdf/10.1175/MWR-D-16-0214.1


The presented picture of the month is a superposition of spaceborne lidar observations and high-resolution temperature fields of the ECMWF Integrated Forecast System (IFS). It displays complex tropospheric and stratospheric clouds in the Arctic winter of 2015/16. Near the end of December 2015, the unusual northeastward propagation of warm and humid subtropical air masses as far north as 808N lifted the tropopause by more than 3 km in 24 h and cooled the stratosphere on a large scale. A widespread formation of thick cirrus clouds near the tropopause and of synoptic-scale polar stratospheric clouds (PSCs) occurred as the temperature dropped below the thresholds for the existence of cloud particles. Additionally, mountain waves were excited by the strong flow at the western edge of the ridge across Svalbard, leading to the formation of mesoscale ice PSCs. The most recent IFS cycle using a horizontal resolution of 8 km globally reproduces the large-scale and mesoscale flow features and leads to a remarkable agreement with the wave structure revealed by the spaceborne observations.

Item URL in elib:https://elib.dlr.de/111421/
Document Type:Article
Title:PICTURE OF THE MONTH: Multilevel Cloud Structures over Svalbard
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Pitts, MichaelNASA, Langley Research Center, Hampton, VA, USAUNSPECIFIED
Poole, LamontScience Systems and Applications, Inc., Hampton, VA, USAUNSPECIFIED
Maturilli, MarionAlfred Wegener Institut, PotsdamUNSPECIFIED
Journal or Publication Title:Monthly Weather Review
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1175/MWR-D-16-0214.1
Page Range:pp. 1149-1159
Publisher:American Meteorological Society
Keywords:stratospheric clouds, Tropopause, mountain waves
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Ziegele, Brigitte
Deposited On:13 Mar 2017 20:25
Last Modified:31 Jul 2019 20:08

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