Guitao Shi

Antarctic environment; snow and ice core chemistry; nitrogen and oxygen isotopes; atmospheric chemistry

In my lab, we are interested in understanding nitrate geochemical  behaviors in polar environments, such as snow, ice, and the atmosphere,  using nitrogen and triple oxygen isotopes. We have built the nitrate  isotope analyzing system, a state-of-the-art isotope analysis system.  Also, we are interested in understanding how and why the past climate  changes using ice cores recovered from the Antarctic Ice Sheet. In my  lab, the members can have a chance to visit Antarctica/Arctic for  scientific investigation, and the PhD and master candidates are welcome.  Also, the postdoc positions are available in my lab, and you are  welcome to join us!

1. Antarctic Environments

2. Antarctic ice core records

3. Nitrate and its isotopic composition in polar environments

Selected peer-review papers:

[1]     Shi, G., Li, C., Li, Y., Chen, Z., Ding, M., Ma, H., Jiang, S., An, C., Guo, J., Sun, B., Hastings, M.G. Isotopic constraints on sources, production, and phase partitioning for nitrate in the atmosphere and snowfall in coastal East Antarctica. Earth and Planetary Science Letters, 2022, 578, 1-12.

[2]     Shi, G., Ma, H., Zhu, Z., Hu, Z., Chen, Z., Jiang, S., An, C., Yu, J., Ma, T., Li, Y., Sun, B., Hastings, M.G. Using stable isotopes to distinguish atmospheric nitrate production and its contribution to the surface ocean across hemispheres. Earth and Planetary Science Letters, 2021, 564, 116914.

[3]     Shi, G., Ma, H., Hu, Z., Chen, Z., An, C., Jiang, S., Li, Y., Ma, T., Yu, J., Wang, D., Lu, S., Sun, B., Hastings, M.G. Spatial and temporal variations in surface snow chemistry along a traverse from coastal East Antarctica to the ice sheet summit (Dome A). The Cryosphere, 2021, 15, 1087-1095.

[4]     Shi, G., Chai, J., Zhu, Z., Hu, Z., Chen, Z., Yu, J., Ma, T., Ma, H., An, C., Jiang, S., Tang, X., Hastings, M.G. Isotope fractionation of nitrate during volatilization in snow: a field investigation in Antarctica. Geophysical Research Letters, 2019, 46, 3287-3297.

[5]     Shi, G., Buffen, A.M., Ma, H., Hu., Z., Sun, B., Li, C., Yu, J., Ma, T., Li, Y., and Hastings, M.G. Distinguishing summertime atmospheric production of nitrate across the East Antarctic Ice Sheet, Geochimica et Cosmochimica Acta, 2018, 231, 1-14. doi: 10.1016/j.gca.2018.03.025.

[6]     Shi, G., Hastings, M.G., Yu, J., Ma, T., Hu, Z., An, C., Li, C., Ma, H., Jiang, S., and Li, Y. Nitrate deposition and preservation in the snowpack along a traverse from coast to the ice sheet summit (Dome A) in East Antarctica, The Cryosphere, 2018, 12, 1177-1194, https://doi.org/10.5194/tc-12-1177-2018.

[7]     Shi, G., Buffen, A.M., Hastings, M.G., Li, C., Ma, H., Li, Y., Sun, B., An, C., Jiang, S. Investigation of post-depositional processing of nitrate in East Antarctic snow: isotopic constraints on photolytic loss, re-oxidation, and source inputs. Atmospheric Chemistry and Physics, 2015, 15, 9435–9453.

[8]     Shi, G., Teng, J., Ma, H., Li, Y., Sun, B. Metals and metalloids in precipitation collected during CHINARE campaign from Shanghai, China to Zhongshan Station, Antarctica: Spatial variability and source identification. Global Biogeochemical Cycles, 2015, 29, 760-774, doi: 10.1002/2014GB005060.

[9]     Jiang S., Shi, G.* Cole-Dai J., An C. and Sun B. Occurrence, latitudinal gradient and potential sources of perchlorate in the atmosphere across the hemispheres (31°N to 80°S). Environment International, 2021, 156, 106611.

[10]  Hu Z., Shi, G.*, Talalay P., Li Y., Fan X., An C., Zhang N., Li C., Liu K. and Yu J. Deep ice-core drilling to 800 m at Dome A in East Antarctica. Annals of Glaciology 62, 293-304. https://doi.org/10.1017/aog.2021.2