Global and Regional Variations and Main Drivers of Aerosol Loadings over Land during 1980–2018
Abstract
:1. Introduction
2. Data and Methods
2.1. MERRA-2 Aerosol Reanalysis Products
2.2. The Empirical Orthogonal Function Analysis
2.3. Temporal Trend Analysis
2.4. Spatial Correlation and Aggregation Analysis Method
3. Result and Discussion
3.1. Global Spatial and Temporal Variation of AOD
3.2. The Main Drivers of the Global Distributions of AOD
3.3. The Effect of Aerosol Emissions on Global AOD Variations
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Short Name | Full Name |
---|---|
AODANA | aerosol optical depth analysis |
SO4SO4AOD | so4 aerosol optical depth [550 nm] |
SSAOD | sea aerosol optical depth [550 nm] |
OCAOD | organic carbon aerosol optical depth [550 nm] |
DUAOD | dust aerosol optical depth [550 nm] |
BCAOD | black carbon aerosol optical depth [550 nm] |
Aerosol Types | Short Name | Long Name |
---|---|---|
Black Carbon | BCEM001 | black carbon emission bin001 |
BCEM002 | black carbon emission bin002 | |
BCEMAN | black carbon anthropogenic missions | |
BCEMBB | black carbon biomass burning emissions | |
Dust Aerosols | DUEM001 | dust emission bin001 |
DUEM002 | dust emission bin002 | |
DUEM003 | dust emission bin003 | |
DUEM004 | dust emission bin004 | |
DUEM005 | dust emission bin005 | |
Sulfur Aerosols | SO2EMAN | so2 anthropogenic emissions |
SO2EMBB | so2 biomass burning emissions | |
SO2EMVE | so2 volcanic (explosive) emissions | |
SO2EMVN | so2 volcanic (non-explosive) emissions | |
SO4EMAN | so4 anthropogenic emissions | |
SUEM003 | sulfate emission bin003 | |
Sea Salt Aerosols | SSEM001 | sea salt emission bin001 |
SSEM002 | sea salt emission bin002 | |
SSEM003 | sea salt emission bin003 | |
SSEM004 | sea salt emission bin004 | |
SSEM005 | sea salt emission bin005 | |
Organic Carbon Aerosols | OCEM001 | organic carbon emission bin001 |
OCEM002 | organic carbon emission bin002 | |
OCEMAN | organic carbon anthropogenic emissions | |
OCEMBB | organic carbon biomass burning emissions | |
OCEMBG | organic carbon biogenic emissions |
Aerosol Types | Bin | 1 | 2 | 3 | 4 | 5 |
---|---|---|---|---|---|---|
Dust aerosols | radius | 0.73 | 1.4 | 2.4 | 4.5 | 8 |
radius lower | 0.1 | 1 | 1.8 | 3 | 6 | |
radius upper | 1 | 1.8 | 3 | 6 | 10 | |
density | 2500 | 2650 | 2650 | 2650 | 2650 | |
Sea salt aerosols | radius | 0.079 | 0.316 | 1.119 | 2.818 | 7.772 |
radius lower | 0.03 | 0.1 | 0.5 | 1.5 | 5 | |
radius upper | 0.1 | 0.5 | 1.5 | 5 | 10 | |
density | 2200 | 2200 | 2200 | 2200 | 2200 |
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Sun, J.; Ding, K.; Lai, Z.; Huang, H. Global and Regional Variations and Main Drivers of Aerosol Loadings over Land during 1980–2018. Remote Sens. 2022, 14, 859. https://doi.org/10.3390/rs14040859
Sun J, Ding K, Lai Z, Huang H. Global and Regional Variations and Main Drivers of Aerosol Loadings over Land during 1980–2018. Remote Sensing. 2022; 14(4):859. https://doi.org/10.3390/rs14040859
Chicago/Turabian StyleSun, Jie, Kaihua Ding, Zulong Lai, and Haijun Huang. 2022. "Global and Regional Variations and Main Drivers of Aerosol Loadings over Land during 1980–2018" Remote Sensing 14, no. 4: 859. https://doi.org/10.3390/rs14040859