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Validation of GOME-2/Metop total column water vapour with ground-based and in situ measurements

Kalakoski, N. and Kujanpää, J. and Sofieva, V and Tamminen, J. and Grossi, M. and Valks, Pieter (2016) Validation of GOME-2/Metop total column water vapour with ground-based and in situ measurements. Atmospheric Measurement Techniques (AMT) (9), pp. 1533-1544. Copernicus Publications. DOI: doi:10.5194/amt-9-1533-2016 ISSN 1867-1381

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Official URL: http://www.atmos-meas-tech.net/9/1533/2016/

Abstract

The total column water vapour product from the Global Ozone Monitoring Experiment-2 on board Metop-A and Metop-B satellites (GOME-2/Metop-A and GOME-2/Metop-B) produced by the Satellite Application Facility on Ozone and Atmospheric Chemistry Monitoring (O3M SAF) is compared with co-located radiosonde observations and global positioning system (GPS) retrievals. The validation is performed using recently reprocessed data by the GOME Data Processor (GDP) version 4.7. The time periods for the validation are January 2007–July 2013 (GOME-2A) and December 2012–July 2013 (GOME-2B). The radiosonde data are from the Integrated Global Radiosonde Archive (IGRA) maintained by the National Climatic Data Center (NCDC). The ground-based GPS observations from the COSMIC/SuomiNet network are used as the second independent data source. We find a good general agreement between the GOME-2 and the radiosonde/GPS data. The median relative difference of GOME-2 to the radiosonde observations is −2.7 % for GOME-2A and −0.3 % for GOME-2B. Against the GPS, the median relative differences are 4.9 % and 3.2 % for GOME-2A and B, respectively. For water vapour total columns below 10 kg m−2, large wet biases are observed, especially against the GPS retrievals. Conversely, at values above 50 kg m−2, GOME-2 generally underestimates both ground-based observations.

Item URL in elib:https://elib.dlr.de/105514/
Document Type:Article
Title:Validation of GOME-2/Metop total column water vapour with ground-based and in situ measurements
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kalakoski, N.FMIUNSPECIFIED
Kujanpää, J.FMIUNSPECIFIED
Sofieva, VFMIUNSPECIFIED
Tamminen, J.FMIUNSPECIFIED
Grossi, M.DLR-IMFUNSPECIFIED
Valks, PieterDLR-IMFUNSPECIFIED
Date:2016
Journal or Publication Title:Atmospheric Measurement Techniques (AMT)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :doi:10.5194/amt-9-1533-2016
Page Range:pp. 1533-1544
Editors:
EditorsEmail
Munro, R.EUMETSAT, Darmstadt, Germany
Tamminen, J.Finnish Meteorological Institute, Helsinki, Finland
Stammes, PietKNMI, Netherlands
Publisher:Copernicus Publications
ISSN:1867-1381
Status:Published
Keywords:water vapour, validation, satellite, GOME-2
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 Ozon-SAF (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Valks, Dr. Pieter
Deposited On:01 Aug 2016 16:24
Last Modified:08 Mar 2018 18:10

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