Titre :

Validation of the TROPOspheric Monitoring Instrument (TROPOMI) surface UV radiation product

Auteur(s) :

Lakkala, Kaisa [Auteur]
Space and Earth Observation Centre [Sodankylä]
Finnish Meteorological Institute [FMI]
Kujanpaa, Jukka [Auteur]
Space and Earth Observation Centre [Sodankylä]
Brogniez, Colette [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Henriot, Nicolas [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Arola, Antti [Auteur]
Finnish Meteorological Institute [FMI]
Aun, Margit [Auteur]
University of Tartu
Finnish Meteorological Institute [FMI]
Auriol, Frederique [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Bais, Alkiviadis [Auteur]
Department of Physics [Thessaloniki]
Bernhard, Germar [Auteur]
De Bock, Veerle [Auteur]
Institut Royal Météorologique de Belgique [Bruxelles] - Royal Meteorological Institute of Belgium [IRM]
Catalfamo, Maxime [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Deroo, Christine [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Diemoz, Henri [Auteur]
CNR Institute of Atmospheric Sciences and Climate [ISAC]
Aosta Valley Regional Environmental Protection Agency [ARPA]
Egli, Luca [Auteur]
Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center [PMOD/WRC]
Forestier, Jean-Baptiste [Auteur]
Laboratoire de l'Atmosphère et des Cyclones [LACy]
Fountoulakis, Ilias [Auteur]
Aosta Valley Regional Environmental Protection Agency [ARPA]
Garane, Katerina [Auteur]
Laboratory of Atmospheric Physics [Thessaloniki]
Garcia, Rosa Delia [Auteur]
Universidad de Valladolid [Valladolid] [UVa]
Agencia Estatal de Meteorología [AEMet]
Grobner, Julian [Auteur]
Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center [PMOD/WRC]
Hassinen, Seppo [Auteur]
Space and Earth Observation Centre [Sodankylä]
Heikkila, Anu [Auteur]
Finnish Meteorological Institute [FMI]
Henderson, Stuart [Auteur]
Hulsen, Gregor [Auteur]
Physikalisch-Meteorologisches Observatorium Davos/World Radiation Center [PMOD/WRC]
Johnsen, Bjørn [Auteur]
Norwegian Radiation and Nuclear Safety Authority
Kalakoski, Niilo [Auteur]
Space and Earth Observation Centre [Sodankylä]
Karanikolas, Angelos [Auteur]
Aristotle University of Thessaloniki
Karppinen, Tomi [Auteur]
Space and Earth Observation Centre [Sodankylä]
Lamy, Kevin [Auteur]
Laboratoire de l'Atmosphère et des Cyclones [LACy]
Leon-Luis, Sergio F. [Auteur]
Izaña Atmospheric Research Center [IARC]
Lindfors, Anders V. [Auteur]
Finnish Meteorological Institute [FMI]
Metzger, Jean-Marc [Auteur]
Observatoire des Sciences de l'Univers de La Réunion [OSU-Réunion]
Minvielle, Fanny [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Muskatel, Harel B. [Auteur]
Portafaix, Thierry [Auteur]
Laboratoire de l'Atmosphère et des Cyclones [LACy]
Redondas, Alberto [Auteur]
Izaña Atmospheric Research Center [IARC]
Sanchez, Ricardo [Auteur]
Servicio Meteorológico Nacional [Buenos Aires]
Siani, Anna Maria [Auteur]
Dipartimento di Fisica [Roma La Sapienza]
Svendby, Tove [Auteur]
Norwegian Institute for Air Research [NILU]
Tamminen, Johanna [Auteur]
Space and Earth Observation Centre [Sodankylä]

Titre de la revue :

Atmospheric Measurement Techniques

Nom court de la revue :

Atmos. Meas. Tech.

Numéro :

13

Pagination :

-

Date de publication :

2021-03-10

ISSN :

1867-1381

Discipline(s) HAL :

Planète et Univers [physics]/Océan, Atmosphère

Résumé en anglais : [en]

The TROPOspheric Monitoring Instrument (TROPOMI) onboard the Sentinel-5 Precursor (S5P) satellite was launched on 13 October 2017 to provide the atmospheric composition for atmosphere and climate research. The S5P is a ...
Lire la suite >The TROPOspheric Monitoring Instrument (TROPOMI) onboard the Sentinel-5 Precursor (S5P) satellite was launched on 13 October 2017 to provide the atmospheric composition for atmosphere and climate research. The S5P is a Sun-synchronous polar-orbiting satellite providing global daily coverage. The TROPOMI swath is 2600 km wide, and the ground resolution for most data products is 7.2×3.5 km2 (5.6×3.5 km2 since 6 August 2019) at nadir. The Finnish Meteorological Institute (FMI) is responsible for the development of the TROPOMI UV algorithm and the processing of the TROPOMI surface ultraviolet (UV) radiation product which includes 36 UV parameters in total. Ground-based data from 25 sites located in arctic, subarctic, temperate, equatorial and Antarctic areas were used for validation of the TROPOMI overpass irradiance at 305, 310, 324 and 380 nm, overpass erythemally weighted dose rate/UV index, and erythemally weighted daily dose for the period from 1 January 2018 to 31 August 2019. The validation results showed that for most sites 60 %–80 % of TROPOMI data was within ±20 % of ground-based data for snow-free surface conditions. The median relative differences to ground-based measurements of TROPOMI snow-free surface daily doses were within ±10 % and ±5 % at two-thirds and at half of the sites, respectively. At several sites more than 90 % of cloud-free TROPOMI data was within ±20 % of ground-based measurements. Generally median relative differences between TROPOMI data and ground-based measurements were a little biased towards negative values (i.e. satellite data < ground-based measurement), but at high latitudes where non-homogeneous topography and albedo or snow conditions occurred, the negative bias was exceptionally high: from −30 % to −65 %. Positive biases of 10 %–15 % were also found for mountainous sites due to challenging topography. The TROPOMI surface UV radiation product includes quality flags to detect increased uncertainties in the data due to heterogeneous surface albedo and rough terrain, which can be used to filter the data retrieved under challenging conditions.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS

Collections :

• Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518

Date de dépôt :

2024-01-16T22:06:07Z
2024-02-15T12:59:40Z