High-resolution physicochemical dataset of atmospheric aerosols over the Tibetan Plateau and its surroundings
<p>Atmospheric aerosol in the Tibetan Plateau (TP) and its surroundings has attracted significant scientific interest in recent decades due to its notable impacts on regional climatic and cryospheric changes, ecological and environmental security, and the hydrological cycle. However, our under...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2024-04-01
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| Series: | Earth System Science Data |
| Online Access: | https://essd.copernicus.org/articles/16/1875/2024/essd-16-1875-2024.pdf |
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| author | J. Xu J. Xu X. Zhang X. Zhang W. Zhao W. Zhao W. Zhao L. Zhai L. Zhai L. Zhai M. Zhong M. Zhong J. Shi J. Sun Y. Liu Y. Liu C. Xie C. Xie Y. Tan Y. Tan K. Li K. Li X. Ge Q. Zhang S. Kang S. Kang S. Kang |
| author_facet | J. Xu J. Xu X. Zhang X. Zhang W. Zhao W. Zhao W. Zhao L. Zhai L. Zhai L. Zhai M. Zhong M. Zhong J. Shi J. Sun Y. Liu Y. Liu C. Xie C. Xie Y. Tan Y. Tan K. Li K. Li X. Ge Q. Zhang S. Kang S. Kang S. Kang |
| author_sort | J. Xu |
| collection | DOAJ |
| description | <p>Atmospheric aerosol in the Tibetan Plateau (TP) and its surroundings has attracted significant scientific interest in recent decades due to its notable impacts on regional climatic and cryospheric changes, ecological and environmental security, and the hydrological cycle. However, our understanding of the atmospheric aerosol in this remote region is highly limited by the scarcity of available datasets owing to the extremely harsh natural conditions. This challenge has been mitigated in recent decades by establishing field observatories at typical sites within the TP and its surroundings. A continuous project initiated in 2015 aims to explore the properties and sources of atmospheric aerosols, as well as their regional differences, through multiple short-term intensive observations obtained across this vast region utilizing a suite of high-time-resolution online instruments. This paper presents a systematic and hourly scale dataset of aerosol physicochemical and optical properties at eight sites across the TP and its surroundings that is derived from the project. It includes size-resolved chemical compositions of submicron aerosols, high-resolution mass spectra and sources of organic aerosols, size distributions of particle number concentrations, particle light-scattering and light-absorption coefficients, particle light absorptions attributed to different carbonaceous substances including black carbon and brown carbon, and number<span id="page1876"/> concentrations of cloud condensation nuclei. In brief, atmospheric aerosols in these remote sites were all well mixed and highly aged, reflecting their dominant regional transport sources. However, the southern TP region exhibited high contributions of carbonaceous organic aerosols, neutralized bulk submicron aerosols, and a relatively high light-absorption capacity, whereas in the northern TP region, secondary inorganic species were the main contributors to the overall acidic submicron aerosols. Beyond providing insights into the regional differences in aerosol sources and properties across the TP and its surroundings, the datasets will also benefit simulations of aerosol radiative forcing and evaluations of interactions among different Earth system components in numerical models for this region. The datasets are accessible through the National Cryosphere Desert Data Center, Chinese Academy of Sciences (<a href="https://doi.org/10.12072/ncdc.NIEER.db2200.2022">https://doi.org/10.12072/ncdc.NIEER.db2200.2022</a>; Xu, 2022).</p> |
| first_indexed | 2024-04-24T08:52:45Z |
| format | Article |
| id | doaj.art-eeda75bd61c54b3db9237e7bb2ac7864 |
| institution | Directory Open Access Journal |
| issn | 1866-3508 1866-3516 |
| language | English |
| last_indexed | 2024-04-24T08:52:45Z |
| publishDate | 2024-04-01 |
| publisher | Copernicus Publications |
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| series | Earth System Science Data |
| spelling | doaj.art-eeda75bd61c54b3db9237e7bb2ac78642024-04-16T09:55:47ZengCopernicus PublicationsEarth System Science Data1866-35081866-35162024-04-01161875190010.5194/essd-16-1875-2024High-resolution physicochemical dataset of atmospheric aerosols over the Tibetan Plateau and its surroundingsJ. Xu0J. Xu1X. Zhang2X. Zhang3W. Zhao4W. Zhao5W. Zhao6L. Zhai7L. Zhai8L. Zhai9M. Zhong10M. Zhong11J. Shi12J. Sun13Y. Liu14Y. Liu15C. Xie16C. Xie17Y. Tan18Y. Tan19K. Li20K. Li21X. Ge22Q. Zhang23S. Kang24S. Kang25S. Kang26School of Oceanography, Shanghai Jiao Tong University, Shanghai 200030, ChinaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, Chinanow at: College of Urban and Environmental Sciences, Northwest University, Xi'an 710127, ChinaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, Chinanow at: Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, Chinanow at: College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730000, ChinaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, ChinaKey Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, ChinaKey Laboratory of Atmospheric Chemistry of CMA, Chinese Academy of Meteorological Sciences, Beijing 100081, ChinaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, Chinanow at: College of Resources and Environment, Aba Teachers University, Wenchuan 623002, ChinaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, Chinanow at: State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, ChinaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, ChinaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, ChinaJiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaDepartment of Environmental Toxicology, University of California, Davis, CA 95616, USAState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, ChinaCAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100085, China<p>Atmospheric aerosol in the Tibetan Plateau (TP) and its surroundings has attracted significant scientific interest in recent decades due to its notable impacts on regional climatic and cryospheric changes, ecological and environmental security, and the hydrological cycle. However, our understanding of the atmospheric aerosol in this remote region is highly limited by the scarcity of available datasets owing to the extremely harsh natural conditions. This challenge has been mitigated in recent decades by establishing field observatories at typical sites within the TP and its surroundings. A continuous project initiated in 2015 aims to explore the properties and sources of atmospheric aerosols, as well as their regional differences, through multiple short-term intensive observations obtained across this vast region utilizing a suite of high-time-resolution online instruments. This paper presents a systematic and hourly scale dataset of aerosol physicochemical and optical properties at eight sites across the TP and its surroundings that is derived from the project. It includes size-resolved chemical compositions of submicron aerosols, high-resolution mass spectra and sources of organic aerosols, size distributions of particle number concentrations, particle light-scattering and light-absorption coefficients, particle light absorptions attributed to different carbonaceous substances including black carbon and brown carbon, and number<span id="page1876"/> concentrations of cloud condensation nuclei. In brief, atmospheric aerosols in these remote sites were all well mixed and highly aged, reflecting their dominant regional transport sources. However, the southern TP region exhibited high contributions of carbonaceous organic aerosols, neutralized bulk submicron aerosols, and a relatively high light-absorption capacity, whereas in the northern TP region, secondary inorganic species were the main contributors to the overall acidic submicron aerosols. Beyond providing insights into the regional differences in aerosol sources and properties across the TP and its surroundings, the datasets will also benefit simulations of aerosol radiative forcing and evaluations of interactions among different Earth system components in numerical models for this region. The datasets are accessible through the National Cryosphere Desert Data Center, Chinese Academy of Sciences (<a href="https://doi.org/10.12072/ncdc.NIEER.db2200.2022">https://doi.org/10.12072/ncdc.NIEER.db2200.2022</a>; Xu, 2022).</p>https://essd.copernicus.org/articles/16/1875/2024/essd-16-1875-2024.pdf |
| spellingShingle | J. Xu J. Xu X. Zhang X. Zhang W. Zhao W. Zhao W. Zhao L. Zhai L. Zhai L. Zhai M. Zhong M. Zhong J. Shi J. Sun Y. Liu Y. Liu C. Xie C. Xie Y. Tan Y. Tan K. Li K. Li X. Ge Q. Zhang S. Kang S. Kang S. Kang High-resolution physicochemical dataset of atmospheric aerosols over the Tibetan Plateau and its surroundings Earth System Science Data |
| title | High-resolution physicochemical dataset of atmospheric aerosols over the Tibetan Plateau and its surroundings |
| title_full | High-resolution physicochemical dataset of atmospheric aerosols over the Tibetan Plateau and its surroundings |
| title_fullStr | High-resolution physicochemical dataset of atmospheric aerosols over the Tibetan Plateau and its surroundings |
| title_full_unstemmed | High-resolution physicochemical dataset of atmospheric aerosols over the Tibetan Plateau and its surroundings |
| title_short | High-resolution physicochemical dataset of atmospheric aerosols over the Tibetan Plateau and its surroundings |
| title_sort | high resolution physicochemical dataset of atmospheric aerosols over the tibetan plateau and its surroundings |
| url | https://essd.copernicus.org/articles/16/1875/2024/essd-16-1875-2024.pdf |
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