Preprints
https://doi.org/10.5194/essd-2021-187
https://doi.org/10.5194/essd-2021-187

  28 Jun 2021

28 Jun 2021

Review status: this preprint is currently under review for the journal ESSD.

APCC Data Report I: Black carbon and organic carbon dataset from atmosphere, glaciers, snow cover, precipitation, and lake sediment cores over the Third Pole

Shichang Kang1,10, Yulan Zhang1, Pengfei Chen1, Junming Guo1, Qianggong Zhang2, Zhiyuan Cong2, Susan Kaspari3, Lekhendra Tripathee1, Tanguang Gao4, Hewen Niu1, Xinyue Zhong5, Xintong Chen1, Zhaofu Hu1, Xiaofei Li6, Yang Li7, Bigyan Neupane8, Fangping Yan1, Dipesh Rupakheti1, Chaman Gul9, Wei Zhang1, Guangming Wu3, Ling Yang1, Zhaoqing Wang4, and Chaoliu Li1 Shichang Kang et al.
  • 1State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
  • 2State Key Laboratory of Tibetan Plateau Earth System Science (LATPES), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
  • 3Department of Geological Sciences, Central Washington University, Ellensburg, Washington, USA
  • 4Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
  • 5Key Laboratory of Remote Sensing of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
  • 6School of Environmental Science and Engineering, Shanxi University of Science and Technology, Xi’an 710021 China
  • 7Institute of International Rivers and Eco-security, Yunnan University, Kunming, Yunnan, 650091, China
  • 8Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
  • 9Reading Academy, Nanjing University of Information Science and Technology, Nanjing, 210044, China
  • 10University of Chinese Academy of Sciences, Beijing 100049, China

Abstract. The Tibetan Plateau (TP) and its surroundings, known as the Third Pole, play an important role in the regional and global climate and hydrological cycle. Carbonaceous aerosols (CAs), including black carbon (BC) and organic carbon (OC), can directly/indirectly absorb and scatter solar radiation, and change the energy balance on Earth. CAs, along with other atmospheric pollutants (e.g., mercury), can frequently be transported over long distances into the inland TP. During the last decade, a coordinated monitoring network and research program on Atmospheric Pollution and Cryospheric Change (APCC) has been gradually setup and continuously operated within the Third Pole regions to investigate the linkage between atmospheric pollutants and cryospheric change. This paper presents a systematic dataset of BC, OC, water soluble organic carbon (WSOC), and water insoluble organic carbon (WIOC) from aerosols (19 stations), glaciers (17 glaciers, including samples from surface snow/ice, snowpit, and two ice cores), snow cover (2 stations continuous observed, and 138 sites surveyed), precipitation (6 stations), and lake sediment cores (7 lakes) collected across the TP and its surroundings, as the first dataset released from this APCC program. These data were created based on online (in-situ) and laboratory measurements. High-resolution (daily scale) atmospheric equivalent BC (eBC) concentrations were obtained by using an aethalometer (AE-33) in the Mt. Everest (Qomolangma) region, which can provide a new insight into the mechanism of BC transportation over the Himalayas. Spatial distributions of BC, OC, WSOC and WIOC from aerosols, glaciers, snow cover, and precipitation indicated different features among the different regions of the TP, which were mostly influenced by emission sources, transport, and deposition processes. Several hundred years of refractory BC (rBC) records from ice cores and BC from lake sediment cores revealed the strength of human activities since the industrial revolution. BC isotopes from glaciers and aerosols identified the relative contributions of biomass and fossil fuel combustion to BC deposition on the Himalayas and TP. Mass absorption cross section of BC and WSOC from aerosol, glaciers, snow cover, and precipitation samples were also provided. This updated dataset is released to the scientific communities focusing on atmospheric science, cryospheric science, hydrology, climatology and environmental science. The related datasets are presented in the form of excel files. These files are available to download from the State Key Laboratory of Cryosphere Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences at Lanzhou  (https://doi.org/10.12072/ncdc.NIEER.db0114.2021, Kang and Zhang, 2021). In the future, datasets of mercury, heavy metals, and POPs will be reported.

Shichang Kang et al.

Status: open (until 01 Sep 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse

Shichang Kang et al.

Data sets

APCC Data Report I: Black carbon and organic carbon dataset from atmosphere, glaciers, snow cover, precipitation, and lake sediment cores over the Third Pole. Cold and Arid Regions Science Data Center at Lanzhou (CARD) Kang, S. and Zhang, Y. https://doi.org/10.12072/ncdc.NIEER.db0114.2021

Shichang Kang et al.

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Short summary
Tibetan Plateau is important to the earth’s climate. However, systematical observed data here are scares. To perform more integrated and in-depth investigations of the origins and distributions of atmospheric pollutants and their impacts on cryospheric change, systematic data of BC and OC from atmosphere, glaciers, snow cover, precipitation, and lake sediment cores over the plateau based on APCC program are provided.