KIT | KIT-Bibliothek | Impressum | Datenschutz

OMI-based emission source classification in East China and its spatial redistribution in view of pollution control measures

Zara, Marina 1; van der A, Ronald; Ding, Jieying; Stavrakou, Trissevgeni; Boersma, Folkert
1 Scientific Computing Center (SCC), Karlsruher Institut für Technologie (KIT)

Abstract:

This study aims to generate a satellite-based qualitative emission source characterization for the heavily polluted eastern part of China in the 2010–2016 time period. The applied source identification technique relies on satellite-based NO$_x$ and SO$_2$ emission estimates by OMI, their SO$_2$:NO$_x$ ratio, and the MIX anthropogenic emission inventory to distinguish emissions from different emission categories (urban, industrial, natural) and characterize the dominant source per 0.25° × 0.25° grid cell in East China. Overall, we find good agreement between the satellite- and emission inventory–based spatiotemporal distribution and characterization of the dominant emission sources in East China in 2010–2016. In 2010, the satellite measurements suggest an emission distribution less dominated by industrial areas, a somewhat larger role for urban/transportation areas and agricultural activities, and more natural emissions in the southern part compared to the bottom-up emission categorization. In 2016, more than half of the classified emission categories over East China have remained the same. At the same time, there is a notable increase of agricultural lands and decrease of areas dominated by industry/transportation in 2016, suggestive of an overall decrease in heavy air pollution in East China over the course of 7 years. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000169925
Veröffentlicht am 12.04.2024
Cover der Publikation
Zugehörige Institution(en) am KIT Scientific Computing Center (SCC)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 03.2024
Sprache Englisch
Identifikator ISSN: 0167-6369, 1573-2959
KITopen-ID: 1000169925
Erschienen in Environmental Monitoring and Assessment
Verlag Springer
Band 196
Heft 3
Seiten Art.-Nr.: 323
Vorab online veröffentlicht am 29.02.2024
Schlagwörter Nitrogen oxides, Sulphur dioxide, China, OMI, Emission sources, Air pollution control measures
Nachgewiesen in Scopus
Dimensions
Web of Science
Globale Ziele für nachhaltige Entwicklung Ziel 8 – Menschenwürdige Arbeit und WirtschaftswachstumZiel 9 – Industrie, Innovation und InfrastrukturZiel 11 – Nachhaltige Städte und Gemeinden
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page