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Comparing ECMWF high resolution analyses to lidar temperature measurements in the middle atmosphere

Ehard, Benedikt and Malardel, Sylvie and Dörnbrack, Andreas and Kaifler, Bernd and Kaifler, Natalie and Wedi, Nils (2018) Comparing ECMWF high resolution analyses to lidar temperature measurements in the middle atmosphere. Quarterly Journal of the Royal Meteorological Society, 114, pp. 633-640. Wiley. doi: 10.1002/qj.3206. ISSN 0035-9009.

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Official URL: https://rmets.onlinelibrary.wiley.com/doi/10.1002/qj.3206


Middle atmospheric lidar temperature observations conducted above Sodankylä, Finland (67.4N, 26.6E), during December 2015 are compared to two estimates of the atmospheric state computed by the integrated forecast system (IFS) of the European Centre for Medium-Range Weather Forecasts (ECMWF). The first set corresponds to an hourly sampling of the middle atmosphere by the high-resolution analyses and very short-range forecasts produced by the operational IFS cycle 41r1 at a horizontal resolution of 16 km. The second set is retrieved from the upgraded IFS cycle 41r2 (horizontal resolution at 9 km) which was running in parallel with cycle 41r1 during the validation before it became operational. A remarkable agreement between both IFS data sets and the lidar temperature observations above Sodankylä is found below 45 km altitude. Above 45 km altitude, within the sponge layer of the IFS, both IFS data sets depict lower temperatures than the observations, with the 9 km runs showing the coldest temperatures. Various sensitivity experiments conducted with the IFS are analyzed and compared to the lidar observations to investigate the impact of the different changes implemented in the IFS cycle 41r2. It is found that both the scientific changes and the horizontal resolution upgrade contribute to the colder mesosphere above Sodankylä. The data assimilation seems to amplify this effect even further.

Item URL in elib:https://elib.dlr.de/115969/
Document Type:Article
Title:Comparing ECMWF high resolution analyses to lidar temperature measurements in the middle atmosphere
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Ehard, BenediktDLR, IPAhttps://orcid.org/0000-0003-0517-8134UNSPECIFIED
Malardel, SylvieECMWF, UKhttps://orcid.org/0000-0001-8205-0666UNSPECIFIED
Dörnbrack, AndreasDLR, IPAhttps://orcid.org/0000-0003-0936-0216UNSPECIFIED
Kaifler, BerndDLR, IPAhttps://orcid.org/0000-0002-5891-242XUNSPECIFIED
Kaifler, NatalieDLR, IPAhttps://orcid.org/0000-0002-3118-6480UNSPECIFIED
Wedi, NilsECMWF, UKhttps://orcid.org/0000-0001-5324-2749UNSPECIFIED
Date:April 2018
Journal or Publication Title:Quarterly Journal of the Royal Meteorological Society
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 633-640
Keywords:ECMWF, lidar, middle atmosphere
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Middle Atmosphere
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Kaifler, Dr. Natalie
Deposited On:23 Nov 2017 13:14
Last Modified:14 Nov 2023 08:03

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