Reconstructing global daily XCO2 at 1° × 1° spatial resolution from 2016 to 2019 with multisource satellite observation data DOI
Yao Huang, Rui Wang, Ming‐Shaung Ju

et al.

Journal of Applied Remote Sensing, Journal Year: 2024, Volume and Issue: 18(02)

Published: April 9, 2024

The multisource satellite observation data have been widely used in carbon cycle research owing to their long-term and large-scale characteristics. However, the sparse sampling density of often results incomplete spatiotemporal coverage at certain time intervals, which hinders accurate representation global dioxide (CO2) concentration variations is inadequate for supporting applications with different precision requirements. To address this issue, a new multiscale fixed rank kriging proposed generate daily scale column-averaged dry-air mole fraction CO2 (XCO2) products from 2016 2019 over globe on grids 1°, XCO2 Orbiting Carbon Observatory-2, Observatory-3, Greenhouse gases Observing SATellite are applied. Experimental show that dataset has high resolution validated by Total Column Network effectively fill gaps data, cross-validation R2=0.93 root mean square error = 1.06 ppm. Moreover, we analyze spatial distribution seasonal variation characteristics Chinese 2019, presenting an obvious latitudinal gradient periodicity space. method establishes foundational analysis regional scales, as well investigations sources sink.

Language: Английский

Microphysical properties of atmospheric soot and organic particles: measurements, modeling, and impacts DOI Creative Commons
Weijun Li, Nicole Riemer, Liang Xu

et al.

npj Climate and Atmospheric Science, Journal Year: 2024, Volume and Issue: 7(1)

Published: March 8, 2024

Abstract Atmospheric soot and organic particles from fossil fuel combustion biomass burning modify Earth’s climate through their interactions with solar radiation modifications of cloud properties by acting as condensation nuclei ice nucleating particles. Recent advancements in understanding individual microscopic composition have led to heightened interest microphysical properties. This review article provides an overview current advanced measurements offers insights into future avenues for studying these To quantify morphology ageing, fractal dimension ( D f ) is a commonly employed quantitative metric which allows characterize morphologies aggregates relation ageing factors like internal mixing state, core-shell structures, phase, heterogeneity. Models been developed incorporate diversity metrics aged particles, enabling assessment optical absorption radiative forcing effects. The are complex they influenced particle sources, process, meteorological conditions. Furthermore, soluble exhibit diverse forms can engage liquid–liquid phase separation sulfate nitrate components. Primary carbonaceous such tar balls warrant further attention due strong light absorbing properties, presence toxic constituents, small size, impact human health. Future research needs include both atmospheric modeling approaches, focusing on changes the structures ensembles, effects dynamics

Language: Английский

Citations

27

Recent global temperature surge intensified by record-low planetary albedo DOI
Helge Goessling, Thomas Rackow, Thomas Jung

et al.

Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

In 2023, the global mean temperature soared to almost 1.5K above pre-industrial level, surpassing previous record by about 0.17K. Previous best-guess estimates of known drivers including anthropogenic warming and El Niño onset fall short 0.2K in explaining rise. Utilizing satellite reanalysis data, we identify a record-low planetary albedo as primary factor bridging this gap. The decline is apparently caused largely reduced low-cloud cover northern mid-latitudes tropics, continuation multi-annual trend. Further exploring trend understanding how much it due internal variability, aerosol concentrations, or possibly emerging feedback will be crucial for assessing current expected future warming.

Language: Английский

Citations

25

Multi-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and Dhaka DOI Creative Commons

Pravash Tiwari,

Jason Blake Cohen, Lingxiao Lu

et al.

Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)

Published: Jan. 20, 2025

Language: Английский

Citations

4

Rapidly evolving aerosol emissions are a dangerous omission from near-term climate risk assessments DOI Creative Commons
Geeta Persad, B. H. Samset, Laura J. Wilcox

et al.

Environmental Research Climate, Journal Year: 2023, Volume and Issue: 2(3), P. 032001 - 032001

Published: June 6, 2023

Abstract Anthropogenic aerosol emissions are expected to change rapidly over the coming decades, driving strong, spatially complex trends in temperature, hydroclimate, and extreme events both near far from emission sources. Under-resourced, highly populated regions often bear brunt of aerosols’ climate air quality effects, amplifying risk through heightened exposure vulnerability. However, many policy-facing evaluations near-term risk, including those latest Intergovernmental Panel on Climate Change assessment report, underrepresent regionally diverse reducing them a globally averaged offset greenhouse gas warming. We argue that this constitutes major missing element society’s ability prepare for future change. outline pathway towards progress call greater interaction between research, impact modeling, scenario development, communities.

Language: Английский

Citations

44

On the Middle East's severe dust storms in spring 2022: Triggers and impacts DOI Creative Commons
Diana Francis, Ricardo Fonseca, Narendra Nelli

et al.

Atmospheric Environment, Journal Year: 2022, Volume and Issue: 296, P. 119539 - 119539

Published: Dec. 23, 2022

Large amounts of dust in the air can disrupt daily activities and pose a threat to human health. In May 2022, consecutive major storms occurred over Middle East resulting severe environmental, social health impacts. this study, we investigate exceptional factors driving these effects clouds. Using combination satellite, in-situ reanalysis datasets, identify atmospheric triggers for occurrence storms, characterize their three-dimensional structure evaluate radiative impact. The emission was promoted by density currents emanating from deep convection Turkey. convective systems were triggered cut-off lows mid-latitudes fed moisture African rivers. Data Infrared Atmospheric Sounding Interferometer (IASI) showed that clouds transported southward at 4 km altitudes but sunk ground levels when they reached southern Arabian Peninsula due strong subsidence. At station coastal UAE, caused 350 W m−2 drop surface downward shortwave flux 70 increase longwave one during episodes. This contributed 9 °C nighttime temperatures which exacerbated heat population. newly highlighted mechanism East, low interacts with an river, as well direct observations impact on budget contribute reducing associated uncertainties climate models.

Language: Английский

Citations

40

Reducing Aerosol Forcing Uncertainty by Combining Models With Satellite and Within‐The‐Atmosphere Observations: A Three‐Way Street DOI Creative Commons
Ralph A. Kahn, Elisabeth Andrews, C. A. Brock

et al.

Reviews of Geophysics, Journal Year: 2023, Volume and Issue: 61(2)

Published: May 4, 2023

Abstract Aerosol forcing uncertainty represents the largest climate overall. Its magnitude has remained virtually undiminished over past 20 years despite considerable advances in understanding most of key contributing elements. Recent work produced modest increases only confidence estimate itself. This review summarizes contributions toward reducing aerosol made by satellite observations, measurements taken within atmosphere, as well modeling and data assimilation. We adopt a more measurement‐oriented perspective than reviews subject assessing strengths limitations each; gaps possible ways to fill them are considered. Currently planned programs supporting advanced, global‐scale surface‐based aerosol, cloud, precursor gas modeling, intensive field campaigns aimed at characterizing underlying physical chemical processes involved, all essential. But addition, new efforts needed: (a) obtain systematic aircraft situ capturing multi‐variate probability distribution functions particle optical, microphysical, properties (and associated estimates), co‐variability with meteorology, for major airmass types; (b) conceive, develop, implement suborbital (aircraft plus surface‐based) program systematically quantifying cloud‐scale microphysics, cloud optical properties, cloud‐related vertical velocities aerosol‐cloud interactions; (c) focus much research on integrating unique measurements, reduce persistent forcing.

Language: Английский

Citations

26

Dissecting the contributions of organic nitrogen aerosols to global atmospheric nitrogen deposition and implications for ecosystems DOI Creative Commons
Yumin Li, Tzung‐May Fu, Jian Zhen Yu

et al.

National Science Review, Journal Year: 2023, Volume and Issue: 10(12)

Published: Sept. 18, 2023

Atmospheric deposition of particulate organic nitrogen (ONp) is a significant process in the global cycle and may be pivotally important for N-limited ecosystems. However, past models largely overlooked spatial chemical inhomogeneity atmospheric ONp were thus deficient assessing impacts. We constructed comprehensive model gaseous (ON), including latest knowledge on emissions secondary formations. Using this model, we simulated abundances consistent with observations. Our estimated ON was 26 Tg N yr-1, predominantly form (23 yr-1) mostly from wildfires (37%), oceans (22%) aqueous productions (17%). Globally, contributed as much 40% to 80% total downwind biomass-burning regions. constituted dominant external supply boreal forests, tundras Arctic Ocean, its importance amplified future warming climate.

Language: Английский

Citations

26

Characterizing the spatio-temporal distribution, detection, and prediction of aerosol atmospheric rivers on a global scale DOI
Kuldeep Singh Rautela, Shivam Singh, Manish Goyal

et al.

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 351, P. 119675 - 119675

Published: Dec. 3, 2023

Language: Английский

Citations

26

Air Pollution Interactions with Weather and Climate Extremes: Current Knowledge, Gaps, and Future Directions DOI
Cenlin He, Rajesh Kumar, Wenfu Tang

et al.

Current Pollution Reports, Journal Year: 2024, Volume and Issue: 10(3), P. 430 - 442

Published: Feb. 22, 2024

Language: Английский

Citations

15

Resilience to Air Pollution: A Novel Approach for Detecting and Predicting Aerosol Atmospheric Rivers within Earth System Boundaries DOI
Kuldeep Singh Rautela, Shivam Singh,

Manish Kumar Goyal

et al.

Earth Systems and Environment, Journal Year: 2024, Volume and Issue: unknown

Published: July 3, 2024

Language: Английский

Citations

15