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Sulfur dioxide layer height retrieval from Sentinel-5 Precursor/TROPOMI using FP_ILM

Hedelt, Pascal and Efremenko, Dmitry S. and Loyola, Diego and Spurr, Robert and Clarisse, Lieven (2019) Sulfur dioxide layer height retrieval from Sentinel-5 Precursor/TROPOMI using FP_ILM. Atmospheric Measurement Techniques (AMT), 12 (10), pp. 5503-5517. Copernicus Publications. doi: 10.5194/amt-12-5503-2019. ISSN 1867-1381.

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Official URL: https://www.atmos-meas-tech.net/12/5503/2019/


The accurate determination of the location, height, and loading of sulfur dioxide (SO2) plumes emitted by volcanic eruptions is essential for aviation safety. The SO2 layer height is also one of the most critical parameters with respect to determining the impact on the climate. Retrievals of SO2 plume height have been carried out using satellite UV backscatter measurements, but, until now, such algorithms are very time-consuming. We have developed an extremely fast yet accurate SO2 layer height retrieval using the Full-Physics Inverse Learning Machine (FP_ILM) algorithm. This is the first time the algorithm has been applied to measurements from the TROPOMI instrument onboard the Sentinel-5 Precursor platform. In this paper, we demonstrate the ability of the FP_ILM algorithm to retrieve SO2 plume layer heights in near-real-time applications with an accuracy of better than 2 km for SO2 total columns larger than 20 DU. We present SO2 layer height results for the volcanic eruptions of Sinabung in February 2018, Sierra Negra in June 2018, and Raikoke in June 2019, observed by TROPOMI.

Item URL in elib:https://elib.dlr.de/126653/
Document Type:Article
Title:Sulfur dioxide layer height retrieval from Sentinel-5 Precursor/TROPOMI using FP_ILM
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hedelt, PascalUNSPECIFIEDhttps://orcid.org/0000-0002-1752-0040
Efremenko, Dmitry S.UNSPECIFIEDhttps://orcid.org/0000-0002-7449-5072
Loyola, DiegoUNSPECIFIEDhttps://orcid.org/0000-0002-8547-9350
Spurr, RobertRT Solutions, Cambridge, MA, USAUNSPECIFIED
Clarisse, LievenUniv. Libre de Bruxelles, Brussels, Bhttps://orcid.org/0000-0002-8805-2141
Date:18 October 2019
Journal or Publication Title:Atmospheric Measurement Techniques (AMT)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Page Range:pp. 5503-5517
EditorsEmailEditor's ORCID iD
Publisher:Copernicus Publications
Keywords:SO2 TROPOMI Sentinel-5 Precursor Volcanoes Layer height
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Atmospheric and climate research, Vorhaben Spectroscopic Methods in Remote Sensing (old), R - Remote Sensing and Geo Research
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Hedelt, Pascal
Deposited On:14 Nov 2019 10:54
Last Modified:14 Nov 2019 10:54

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