分类目录归档：GeoBBC

GeoBBC

GeoBBC Progress – Sampling review and planning

Before the end of sampling in the dry season, Professor Zhang Gan invited Professor Zou Shichun, Dean of the School of Oceanology, Sun Yat-sen University, to visit Director Tian Zhaowei of Heyuan Hydrology Station. Along with them was the GeoBBC Sampling Squad (Professor Li Jun, Associate Professor Zhao Shizhen, Xiaofei, Bolong and Zhicheng). We had an in-depth discussion on sampling arrangements. Professor Zou and Director Tian gave professional suggestions, which greatly improved our sampling plan. Based on this discussion, we identified Shuntian Hydrological Station (顺天水文站), Heyuan Hydrological Station (河源水文站) and Boluo Hydrological Station (博罗水文站) as long-term sampling sites, and conducted field investigations on these preset sampling sites. What is exciting is that we successfully collected three sedimentary columns (~80 cm) in Fengshuba Reservoir (枫树坝水库). It was a really rewarding trip. Cheers!

Discussion in Heyuan Hydrology Station (February 24, 2023). 张干（左三）、邹世春（左二）、李军（左一）、赵时真（左四）、田兆伟（右三）、耿晓飞（右二）、胡峙成（右一）、张伯龙（拍摄）

Group photos at Shuntian Hydrological Station (February 25, 2023). 张干（右一）、邹世春（右三-下）、李军（左二）、赵时真（右二）、胡峙成（左一）、张伯龙（左三）、耿晓飞（右三-上）

Group photos at Boluo Hydrological Station (February 26, 2023)

Group photos in Simeizhou (hydroelectric power station, February 26, 2023)

The joy of successful collection of sedimentary columns (February 25, 2023)

GeoBBC

Dry Season Sampling of GeoBBC Program Achieved a Phased Success

GeoBBC Sampling in Dry Season mainly includes four stages, and the first two stages have been completed. In the first stage (from 14 Nov. to 26 Nov.), Xiaofei, Bolong and Zhicheng collected the surface water and sediment samples from the main stream of the Dongjiang River (12 sampling sites) and Qiuxiangjiang River (2 sampling sites). In the second stage (from 12 Dec. 2022 to 8 Jan. 2023), the same sampling team collected surface water and sediment samples from Xinfeng River (3 sampling sites), Daxi River (5 sampling sites), Lianping River (6 sampling sites) and Zhongxin River (8 sampling sites). In total, 36 water samples and 25 sediment samples were collected. Among which, basic water quality parameters such as pH, conductivity and ammonia-nitrogen concentrations have been determined. In addition, 28 water samples have been filtered and enriched to obtain particulate matter (PM) and dissolved organic matter (DOM), respectively. Pro. Zhang, Pro. Li and associated Pro. Zhao also participated in this campaign with strategic significance.

In the second stage, Tang Jiao and the GeoBBC sampling team set up 30 passive samplers in the Dongjiang River Basin, mainly distributed in Xinfeng County (4 sampling sites), Lianping County (5 sampling sites) and Dongyuan County (1 sampling site). Three samplers were installed at each sampling site to obtain parallel samples.

Sampling sites of surface water and surface sediments

Sampling sites of passive air samplers

Sampling Photos 

Group Photos

Singer Zhang Bolong

 

GeoBBC

GeoBBC internal meeting

On December the 30th, all members of the NSFC GeoBBC (Geochemical Behavior of Black Carbon) ultra-project gathered online for reviewing the annual progress of the GeoBBC. Four subcontractors reported the general progress of each project. We also discussed the formal annual meeting of the program, which would be taken place in the mid of February 2023.