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

A 6-year global climatology of occurrence of upper tropospheric ice supersaturation inferred from the Atmospheric Infrared Sounder and its synergy with MOZAIC

Lamquin, N. and Stubenrauch, C. J. and Gierens, K. and Burkhardt, U. and Smit, H. (2012) A 6-year global climatology of occurrence of upper tropospheric ice supersaturation inferred from the Atmospheric Infrared Sounder and its synergy with MOZAIC. Atmospheric Chemistry and Physics (12), pp. 381-405. Copernicus Publications. DOI: 10.5194/acp-12-381-2012

[img]
Preview
PDF
3MB

Official URL: http://www.atmos-chem-phys.org/12/381/2012/acp-12-381-2012.html

Abstract

Ice supersaturation in the upper troposphere is a complex and important issue for the understanding of cirrus cloud formation. On one hand, infrared sounders have the ability to provide cloud properties and atmospheric profiles of temperature and humidity. On the other hand, they suffer from coarse vertical resolution, especially in the upper troposphere and therefore are unable to detect shallow ice supersaturated layers. We have used data from the Measurements of OZone and water vapour by AIrbus in-service airCraft experiment (MOZAIC) in combination with Atmospheric InfraRed Sounder (AIRS) relative humidity measurements and cloud properties to develop a calibration method for an estimation of occurrence frequencies of ice supersaturation. This method first determines the occurrence probability of ice supersaturation, detected by MOZAIC, as a function of the relative humidity determined by AIRS. The occurrence probability function is then applied to AIRS data, independently of the MOZAIC data, to provide a global climatology of upper-tropospheric ice supersaturation occurrence. Our climatology is then compared to ice supersaturation occurrence statistics from MOZAIC alone and related to high cloud occurrence from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP). As an example of application it is compared to model climatologies of ice supersaturation from the Integrated Forecast System (IFS) of the European Centre for Medium-Range Weather Forecasts (ECMWF) and from the European Centre HAmburg Model (ECHAM4). This study highlights the benefits of multi-instrumental synergies for the investigation of upper tropospheric ice supersaturation.

Item URL in elib:https://elib.dlr.de/73653/
Document Type:Article
Title:A 6-year global climatology of occurrence of upper tropospheric ice supersaturation inferred from the Atmospheric Infrared Sounder and its synergy with MOZAIC
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lamquin, N.Ecole Polytechnique, Palaiseau, FUNSPECIFIED
Stubenrauch, C. J.Ecole Polytechnique, Palaiseau, FUNSPECIFIED
Gierens, K.DLRUNSPECIFIED
Burkhardt, U.DLRUNSPECIFIED
Smit, H.FZ Jülich, JülichUNSPECIFIED
Date:5 January 2012
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.5194/acp-12-381-2012
Page Range:pp. 381-405
Publisher:Copernicus Publications
Status:Published
Keywords:ice supersaturation, upper troposphere, AIRS, MOZAIC, ECMWF model, ECHAM climate model
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport, Space, Aeronautics
HGF - Program Themes:other, Earth Observation, ATM and Operation (old)
DLR - Research area:Transport, Raumfahrt, Aeronautics
DLR - Program:V - no assignment, R EO - Erdbeobachtung, L AO - Air Traffic Management and Operation
DLR - Research theme (Project):V - no assignment, R - Vorhaben Atmosphären- und Klimaforschung, L - Climate, Weather and Environment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Burkhardt, Dr.rer.nat. Ulrike
Deposited On:10 Jan 2012 10:24
Last Modified:02 May 2019 14:04

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.