elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

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/ q j. 3206 ISSN 0035-9009

[img] PDF
1MB

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

Abstract

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
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ehard, BenediktDLR, IPAhttps://orcid.org/0000-0003-0517-8134
Malardel, SylvieECMWF, UKhttps://orcid.org/0000-0001-8205-0666
Dörnbrack, AndreasDLR, IPAhttps://orcid.org/0000-0003-0936-0216
Kaifler, BerndDLR, IPAhttps://orcid.org/0000-0002-5891-242X
Kaifler, NatalieDLR, IPAhttps://orcid.org/0000-0002-3118-6480
Wedi, NilsECMWF, UKhttps://orcid.org/0000-0001-5324-2749
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 SCOPUS:Yes
In ISI Web of Science:Yes
Volume:114
DOI :10.1002/ q j. 3206
Page Range:pp. 633-640
Publisher:Wiley
ISSN:0035-9009
Status:Published
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 - Erdbeobachtung
DLR - Research theme (Project):Vorhaben Mittlere Atmosphäre
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:31 Jul 2019 20:13

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.