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Total and tropospheric ozone columns from Sentinel-5P

Heue, Klaus-Peter and Valks, Pieter and Xu, Jian and Loyola, Diego and Lerot, Christophe and Van Roozendael, Michel (2018) Total and tropospheric ozone columns from Sentinel-5P. ATMOS 2018, 26.-29. Nov. 2018, Salzburg, Österreich.

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Official URL: http://atmos2018.esa.int/

Abstract

In October 2017, the Sentinel-5P satellite with the TROPOMI instrument was launched into space. Total ozone columns from TROPOMI instrument are retrieved in near real time using the well established DOAS approach, and a subsequent conversion into vertical column densities using an iterative air mass factor calculation. The total ozone algorithm has already been successfully applied to the GOME, SCIAMACHY and GOME-2 missions. To account for the high spatial resolution of the TROPOMI instrument, the treatment of clouds in the total ozone retrieval has been improved. Besides the total column, a tropospheric ozone column is also provided from TROPOMI. The cloud convective differential method is used to separate the tropospheric and stratospheric ozone column. Deep convective clouds shield the tropospheric ozone from the satellite based observers. Therefore the ozone columns above deep convective clouds are good approximations of the stratospheric ozone column. These data are corrected for the variety in the cloud top altitudes and averaged over a 5 days time period and a clean area. In a last step the stratospheric column are subtracted from the total ozone columns for cloud free observations. After a short introduction to the retrieval algorithms, first results will be presented for both total and tropospheric ozone columns from TROPOMI. First comparisons to ozone column data from GOME-2 and ground-based observations will be shown as well.

Item URL in elib:https://elib.dlr.de/125069/
Document Type:Conference or Workshop Item (Speech)
Title:Total and tropospheric ozone columns from Sentinel-5P
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Heue, Klaus-PeterKlaus-Peter.Heue (at) dlr.dehttps://orcid.org/0000-0001-8823-7712
Valks, PieterPieter.Valks (at) dlr.deUNSPECIFIED
Xu, Jianjian.xu (at) dlr.dehttps://orcid.org/0000-0003-2348-125X
Loyola, DiegoDiego.Loyola (at) dlr.dehttps://orcid.org/0000-0002-8547-9350
Lerot, ChristopheBIRA-IASBUNSPECIFIED
Van Roozendael, MichelBIRA-IASBUNSPECIFIED
Date:27 November 2018
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Sentinel 5P Ozon
Event Title:ATMOS 2018
Event Location:Salzburg, Österreich
Event Type:international Conference
Event Dates:26.-29. Nov. 2018
Organizer:ESA
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 Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Heue, Klaus-Peter
Deposited On:18 Dec 2018 10:45
Last Modified:31 Jul 2019 20:23

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