Validation of methane and carbon monoxide from Sentinel-5 Precursor using TCCON and NDACC-IRWG stations
Artikel i vetenskaplig tidskrift, 2021

The Sentinel-5 Precursor (S5P) mission with the TROPOspheric Monitoring Instrument (TROPOMI) on board has been measuring solar radiation backscattered by the Earth's atmosphere and surface since its launch on 13 October 2017. In this paper, we present for the first time the S5P operational methane (CH4) and carbon monoxide (CO) products' validation results covering a period of about 3 years using global Total Carbon Column Observing Network (TCCON) and Infrared Working Group of the Network for the Detection of Atmospheric Composition Change (NDACC-IRWG) network data, accounting for a priori alignment and smoothing uncertainties in the validation, and testing the sensitivity of validation results towards the application of advanced co-location criteria. We found that the S5P standard and bias-corrected CH4 data over land surface for the recommended quality filtering fulfil the mission requirements. The systematic difference of the bias-corrected total column-averaged dry air mole fraction of methane (XCH4) data with respect to TCCON data is -0.26 +/- 0.56 % in comparison to -0.68 +/- 0.74 % for the standard XCH4 data, with a correlation of 0.6 for most stations. The bias shows a seasonal dependence. We found that the S5P CO data over all surfaces for the recommended quality filtering generally fulfil the missions requirements, with a few exceptions, which are mostly due to co-location mismatches and limited availability of data. The systematic difference between the S5P total column-averaged dry air mole fraction of carbon monoxide (XCO) and the TCCON data is on average 9.22 +/- 3.45 % (standard TCCON XCO) and 2.45 +/- 3.38 % (unscaled TCCON XCO). We found that the systematic difference between the S5P CO column and NDACC CO column (excluding two outlier stations) is on average 6.5 +/- 3.54 %. We found a correlation of above 0.9 for most TCCON and NDACC stations. The study shows the high quality of S5P CH4 and CO data by validating the products against reference global TCCON and NDACC stations covering a wide range of latitudinal bands, atmospheric conditions and surface conditions.

Författare

Mahesh Kumar Sha

Belgian Institute for Space Aeronomy (BIRA-IASB)

Bavo Langerock

Belgian Institute for Space Aeronomy (BIRA-IASB)

Jean-Francois L. Blavier

California Institute of Technology (Caltech)

Thomas Blumenstock

Karlsruher Institut für Technologie (KIT)

Tobias Borsdorff

Netherlands Institute for Space Research (SRON)

Matthias Buschmann

Universität Bremen

Angelika Dehn

Europeiska rymdorganisationen (ESA)

Martine De Maziere

Belgian Institute for Space Aeronomy (BIRA-IASB)

Nicholas M. Deutscher

University of Wollongong

Dietrich G. Feist

Ludwig-Maximilians-Universität München (LMU)

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

Max-Planck-Gesellschaft

Omaira E. Garcia

Meteorological State Agency of Spain (AEMET)

David W. T. Griffith

University of Wollongong

Michel Grutter

Universidad Nacional Autonoma de Mexico

James W. Hannigan

National Center for Atmospheric Research

Frank Hase

Karlsruher Institut für Technologie (KIT)

Pauli Heikkinen

Finnish Meteorological Institute

Christian Hermans

Belgian Institute for Space Aeronomy (BIRA-IASB)

Laura T. Iraci

NASA Ames Research Center

Pascal Jeseck

Université de recherche Paris Sciences et Lettres

Nicholas Jones

Belgian Institute for Space Aeronomy (BIRA-IASB)

University of Wollongong

Rigel Kivi

Finnish Meteorological Institute

Jochen Landgraf

Netherlands Institute for Space Research (SRON)

Alba Lorente

Netherlands Institute for Space Research (SRON)

Emmanuel Mahieu

Universite de Liège

Maria V. Makarova

Saint Petersburg State University - Spsu

Johan Mellqvist

Chalmers, Rymd-, geo- och miljövetenskap, Mikrovågs- och optisk fjärranalys

Jean-Marc Metzger

Universite de La Reunion

Isamu Morino

National Institute for Environmental Studies of Japan

Tomoo Nagahama

Nagoya University

Justus Notholt

Universität Bremen

Hirofumi Ohyama

National Institute for Environmental Studies of Japan

Ivan Ortega

National Center for Atmospheric Research

Mathias Palm

Universität Bremen

Christof Petri

Universität Bremen

David F. Pollard

National Institute of Water and Atmospheric Research, New Zealand

Markus Rettinger

Karlsruher Institut für Technologie (KIT)

John Robinson

National Institute of Water and Atmospheric Research, New Zealand

Sebastien Roche

University of Toronto

Coleen M. Roehl

California Institute of Technology (Caltech)

Amelie N. Roehling

Karlsruher Institut für Technologie (KIT)

Matthias Schneider

Cyprus Institute

Karlsruher Institut für Technologie (KIT)

Kei Shiomi

Japan Aerospace Exploration Agency (JAXA)

Dan Smale

National Institute of Water and Atmospheric Research, New Zealand

Wolfgang Stremme

Universidad Nacional Autonoma de Mexico

Kimberly Strong

University of Toronto

Ralf Sussmann

Karlsruher Institut für Technologie (KIT)

Yao Te

Université de recherche Paris Sciences et Lettres

Osamu Uchino

National Institute for Environmental Studies of Japan

Voltaire A. Velazco

University of Wollongong

Corinne Vigouroux

Belgian Institute for Space Aeronomy (BIRA-IASB)

Mihalis Vrekoussis

Universität Bremen

Cyprus Institute

Pucai Wang

Chinese Academy of Sciences

Thorsten Warneke

Universität Bremen

Tyler Wizenberg

University of Toronto

Debra Wunch

University of Toronto

Shoma Yamanouchi

University of Toronto

Yang Yang

Shanghai Ecological Forecasting and Remote Sensing Center

Belgian Institute for Space Aeronomy (BIRA-IASB)

Chinese Academy of Sciences

Minqiang Zhou

Belgian Institute for Space Aeronomy (BIRA-IASB)

Atmospheric Measurement Techniques

1867-1381 (ISSN) 1867-8548 (eISSN)

Vol. 14 9 6249-6304

Ämneskategorier

Meteorologi och atmosfärforskning

Naturgeografi

Multidisciplinär geovetenskap

DOI

10.5194/amt-14-6249-2021

Mer information

Senast uppdaterat

2021-10-14