气候变化领域集成服务门户(CCPortal): Exploring CO2 anomalies in Brazilian biomes combining OCO-2 & 3 data: Linkages to wildfires patterns

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DOI	10.1016/j.asr.2024.01.016
	Exploring CO2 anomalies in Brazilian biomes combining OCO-2 & 3 data: Linkages to wildfires patterns
	da Costa, Luis Miguel; Santos, Gustavo Andre de Araujo; Mendonca, Gislaine Costa de; Maria, Luciano de Souza; da Silva Jr, Carlos Antonio; Panosso, Alan Rodrigo; La Scala Jr, Newton
发表日期	2024
ISSN	0273-1177
EISSN	1879-1948
起始页码	73
结束页码	8
卷号	73 期号:8
英文摘要	Climate change is a challenge to the global community and one of the causes is the increase of greenhouse gases (GHG) in the atmosphere, especially carbon dioxide (CO 2 ). The major emission source of this gas into the atmosphere comes from the burning of fossil fuels and biomass burning, on the other hand, the main sink comes from biochemical processes such as photosynthesis. Thus, the observation of CO 2 is a key point to understanding sources and sinks. In this context, The Orbiting Carbon Observatory 2 (OCO-2) and 3 (OCO-3), are a NASA dedicated mission to monitor the column -averaged dry -air mole fraction of carbon dioxide (XCO 2 ) on a global scale. We combined the OCO-2 and OCO-3 observations to study the spatial distribution of XCO 2 anomalies and how some of these anomalies are related to fire occurrence in the Brazilian Biomes during 2020 and 2021 considering two different seasons, Dry and Wet. The fire occurrence was obtained from Fire Information for Resource Management System (FIRMS) that provides the data from the ModerateResolution Imaging Spectroradiometer (MODIS) product of active fires and thermal anomalies at Near -Real Time (MCD14DL, collection 6). The OCO-2/3 observations are affected by cloud formations in wet seasons, we observe that the dry period has more observations. The XCO 2 anomaly values range from - 7.0 ppm to -7.0 ppm and mostly positive anomalies occur in Amazon Biome, and this ecosystem has higher average values for all periods (-0.9 ppm), compared to the other biomes. The fire occurrence was higher in dry periods, especially in 2020 when unprecedented fire outbreaks were registered in Brazil. The most affected biomes were Pantanal, Cerrado, and Amazon. XCO 2 positive anomalies spatially agree with fire foci over some areas, and the correlation values between them ranged from 0.2 to 0.5 depending on the biome and season, and when considering observations with clouds the correlation is slightly higher. We point out for the first time the possibility of using OCO-2 and 3 combined, also, how positive XCO 2 anomalies are related to fire occurrence in different ecosystems and periods, and the role of cloud detection in this relationship. (c) 2024 COSPAR. Published by Elsevier B.V. All rights reserved.
英文关键词	Remote Sensing; Carbon sources; XCO 2 anomalies; Climate Change; Tropical Ecosystems
语种	英语
WOS研究方向	Engineering ; Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS类目	Engineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001216391400001
来源期刊	ADVANCES IN SPACE RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288554
作者单位	Universidade Federal do Maranhao; Universidade do Estado de Mato Grosso
推荐引用方式 GB/T 7714	da Costa, Luis Miguel,Santos, Gustavo Andre de Araujo,Mendonca, Gislaine Costa de,et al. Exploring CO2 anomalies in Brazilian biomes combining OCO-2 & 3 data: Linkages to wildfires patterns[J],2024,73(8).
APA	da Costa, Luis Miguel.,Santos, Gustavo Andre de Araujo.,Mendonca, Gislaine Costa de.,Maria, Luciano de Souza.,da Silva Jr, Carlos Antonio.,...&La Scala Jr, Newton.(2024).Exploring CO2 anomalies in Brazilian biomes combining OCO-2 & 3 data: Linkages to wildfires patterns.ADVANCES IN SPACE RESEARCH,73(8).
MLA	da Costa, Luis Miguel,et al."Exploring CO2 anomalies in Brazilian biomes combining OCO-2 & 3 data: Linkages to wildfires patterns".ADVANCES IN SPACE RESEARCH 73.8(2024).