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Validation of MIPAS-ENVISAT H2O operational data collected between July 2002 and March 2004

Wetzel, Gerald and Oelhaf, Hermann and Berthet, G. and Bracher, A. and Cornacchia, C. and Feist, D.G. and Fischer, H. and Fix, Andreas and Iarlori, M. and Kleinert, Anne and Lengel, A. and Milz, Mathias and Mona, Lucia and Müller, S.C. and Ovarlez, J. and Pappalardo, G. and Piccolo, C. and Raspollini, Piera and Renard, J.-B. and Rizi, V. and Rohs, S. and Schiller, Cornelius and Stiller, Gabriele and Weber, M. and Zhang, G. (2013) Validation of MIPAS-ENVISAT H2O operational data collected between July 2002 and March 2004. Atmospheric Chemistry and Physics, 13, pp. 5791-5811. Copernicus Publications. DOI: 10.5194/acp-13-5791-2013 ISSN 1680-7316

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Abstract

Water vapour (H2O) is one of the operationally retrieved key species of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument aboard the Environmental Satellite (ENVISAT) which was launched into its sun-synchronous orbit on 1 March 2002 and operated until April 2012. Within the MIPAS validation activities, independent observations from balloons, aircraft, satellites, and ground-based stations have been compared to European Space Agency (ESA) version 4.61 operational H2O data comprising the time period from July 2002 until March 2004 where MIPAS measured with full spectral resolution. No significant bias in the MIPAS H2O data is seen in the lower stratosphere (above the hygropause) between about 15 and 30 km. Differences of H2O quantities observed by MIPAS and the validation instruments are mostly well within the combined total errors in this altitude region. In the upper stratosphere (above about 30 km), a tendency towards a small positive bias (up to about 10%) is present in the MIPAS data when compared to its balloon-borne counterpart MIPAS-B, to the satellite instruments HALOE (Halogen Occultation Experiment) and ACE-FTS (Atmospheric Chemistry Experiment, Fourier Transform Spectrometer), and to the millimeter-wave airborne sensor AMSOS (Airborne Microwave Stratospheric Observing System). In the mesosphere the situation is unclear due to the occurrence of different biases when comparing HALOE and ACE-FTS data. Pronounced deviations between MIPAS and the correlative instruments occur in the lowermost stratosphere and upper troposphere, a region where retrievals of H2O are most challenging. Altogether it can be concluded that MIPAS H2O profiles yield valuable information on the vertical distribution of H2O in the stratosphere with an overall accuracy of about 10 to 30% and a precision of typically 5 to 15% – well within the predicted error budget, showing that these global and continuous data are very valuable for scientific studies. However, in the region around the tropopause retrieved MIPAS H2O profiles are less reliable, suffering from a number of obstacles such as retrieval boundary and cloud effects, sharp vertical discontinuities, and frequent horizontal gradients in both temperature and H2O volume mixing ratio (VMR). Some profiles are characterized by retrieval instabilities.

Item URL in elib:https://elib.dlr.de/82873/
Document Type:Article
Title:Validation of MIPAS-ENVISAT H2O operational data collected between July 2002 and March 2004
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wetzel, GeraldKarlsruhe Institute of Technology (KIT), Institute for Meteorology and Climate Research (IMK), 76021 Karlsruhe, GermanyUNSPECIFIED
Oelhaf, HermannKarlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, GermanyUNSPECIFIED
Berthet, G.Laboratoire de Physique et Chimie de l’Environnement et de l’Espace (LPC2E), CNRS, Orleans, FranceUNSPECIFIED
Bracher, A.nstitute of Environmental Physics and Remote Sensing (IUP/IFE), University of Bremen, Bremen, GermanyUNSPECIFIED
Cornacchia, C.CNR-IMAA, Consiglio Nazionale delle Ricerche – Istituto di Metodologie per l'Analisi Ambientale, Tito Scalo, Potenza, ItalyUNSPECIFIED
Feist, D.G.Max Planck Institute for Biogeochemistry, Jena, GermanyUNSPECIFIED
Fischer, H.Karlsruhe Institute of Technology (KIT), Institute for Meteorology and Climate Research (IMK), 76021 Karlsruhe, GermanyUNSPECIFIED
Fix, AndreasDeutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen, GermanyUNSPECIFIED
Iarlori, M.CETEMPS – Dipartimento di Scienze Fisiche e Chimiche – Università degli Studi, L'Aquila, ItalyUNSPECIFIED
Kleinert, AnneKarlsruhe Institute of Technology (KIT), Institute for Meteorology and Climate Research (IMK), 76021 Karlsruhe, GermanyUNSPECIFIED
Lengel, A.Karlsruhe Institute of Technology (KIT), Institute for Meteorology and Climate Research (IMK), 76021 Karlsruhe, GermanyUNSPECIFIED
Milz, MathiasLulea University of Technology, Division of Space Technology, Kiruna, SwedenUNSPECIFIED
Mona, Lucia CNR-IMAA, Potenza, ItalyUNSPECIFIED
Müller, S.C.Institute of Applied Physics (IAP), University of Bern, Bern, SwitzerlandUNSPECIFIED
Ovarlez, J.aboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), CNRS, Orléans, FranceUNSPECIFIED
Pappalardo, G.CNR-IMAA, Potenza, ItalyUNSPECIFIED
Piccolo, C.Istituto di Fisica Applicata "Nello Carrara" (IFAC), del Consiglio Nazionale delle Ricerche (CNR), Firenze, ItalyUNSPECIFIED
Raspollini, PieraIstituto di Fisica Applicata 'Nello Carrara' (IFAC) del Consiglio Nazionale delleRicerche (CNR), Firenze (Italy)UNSPECIFIED
Renard, J.-B.Lab. de Physique et Chimie de l'Environnement, CNRS, Orléans, FUNSPECIFIED
Rizi, V.Univ. L'Aquila, IUNSPECIFIED
Rohs, S.FZ Jülich, JülichUNSPECIFIED
Schiller, CorneliusFZ Jülich, JülichUNSPECIFIED
Stiller, GabrieleKIT, KarlsruheUNSPECIFIED
Weber, M. Istituto di Fisica Applicata "Nello Carrara" (IFAC), del Consiglio Nazionale delle Ricerche (CNR), Firenze, ItalyUNSPECIFIED
Zhang, G.Institute for Meteorology and Climate Research (IMK), Karlsruhe Institute of Technology (KIT), Karlsruhe, GermanyUNSPECIFIED
Date:14 June 2013
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
Volume:13
DOI :10.5194/acp-13-5791-2013
Page Range:pp. 5791-5811
Publisher:Copernicus Publications
ISSN:1680-7316
Status:Published
Keywords:Satellite Validation, Water Vapour, Humidity, Remote Sensing
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):R - Vorhaben LIDAR-Forschung und -Entwicklung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Fix, Dr.rer.nat. Andreas
Deposited On:17 Jun 2013 11:38
Last Modified:02 May 2019 14:04

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