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Liu Yan (scientist)

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Yan Liu
NationalityChinese
Alma materBSc Wuhan University
MSc Chinese Academy of Sciences
PhD Beijing Normal University
Scientific career
FieldsRemote sensing
InstitutionsBeijing Normal University
WebsiteYan Liu on Beijing Normal University

Yan Liu (Chinese: 刘岩) is a Chinese Antarctic researcher best known for her work on iceberg calving. She is an Associate Professor of Geography in the College of Global Change and Earth System Science (GCESS) and Polar Research Institute, Beijing Normal University.[1]

Early life and education

Liu received her B.Sc., as an outstanding graduate, in photogrammetry and remote sensing from Wuhan University in 2003, her M.Sc. in cartography and geographical information system from the Institute of Remote Sensing Application, Chinese Academy of Sciences in 2006,[2] and her Ph.D. in global environmental change from Beijing Normal University in 2013.[3] She carried out post-doctoral research work at the GCESS between 2013 and 2015 and took charge of NSFC project: Mass balance and its change of Antarctic ice shelves in 2014.[4]

Career and impact

Liu began her Antarctic research in 2009 after working as a technical manager in the field of remote sensing applications for three years. Her research focuses on ice shelves in Antarctica and their responses to climate change.[5][6][7][8] She uses a combination of satellite radar and altimetry and other remote sensed data to understand ice shelf dynamic processes. She is known for high impact research into Antarctic ice shelf mass loss, especially iceberg calving and basal melting.[5][6] She published the dataset of Antarctic iceberg calving in Chinese National Arctic and Antarctic Data Center.[9]

Liu is one of core members of Xiao Cheng’s polar remote sensing research group at Beijing Normal University. This group has used remote sensed data to contribution extensively to Antarctic land cover mapping[10][11][12] and to provide the monitoring and supporting for navigation of XUELONG icebreaker in the Chinese Antarctic expeditions since 2011.[13][14][15] They provided the efficient data for XUELONG icebreaker successfully getting out of the trouble after Antarctica rescue in January 2014.[16]

Liu's work on iceberg calving and ice shelf retreat in Antarctica used satellite images to measure all icebergs larger than 1 km2 calving from the entire Antarctic coastline, and the state of health of all the ice shelves. Some large ice shelves are growing while many smaller ice shelves are shrinking. They found high rates of iceberg calving from Antarctic ice shelves that are undergoing basal melt-induced thinning, which suggests the fate of ice shelves may be more sensitive to ocean forcing than was previously thought.[5][17]

References

  1. ^ "北京师范大学全球变化与地球系统科学研究院" [Research Team]. gcess.cn. Beijing Normal University. Retrieved 2016-06-13.
  2. ^ "半干旱草地NPP遥感模型和环境响应研究" [Environmental Response NPP model and remote sensing semi-arid grasslands]. d.wanfangdata.com.cn. 2006. Retrieved 2016-06-13.
  3. ^ "北京师范大学全球变化与地球系统科学研究院" [Liu Yan Faculty Profile]. gcess.cn. Beijing Normal University. 2013-10-29. Retrieved 2016-06-13.
  4. ^ "科学基金网络信息系统 - 项目检索". isisn.nsfc.gov.cn. Retrieved 2016-06-13.
  5. ^ a b c Liu, Yan; Moore, John C.; Cheng, Xiao; Gladstone, Rupert M.; Bassis, Jeremy N.; Liu, Hongxing; Wen, Jiahong; Hui, Fengming (2015-03-17). "Ocean-driven thinning enhances iceberg calving and retreat of Antarctic ice shelves". Proceedings of the National Academy of Sciences. 112 (11): 3263–3268. doi:10.1073/pnas.1415137112. ISSN 0027-8424. PMC 4371949. PMID 25733856.
  6. ^ a b Åström, J. A.; Vallot, D.; Schäfer, M.; Welty, E. Z.; O’Neel, S.; Bartholomaus, T. C.; Liu, Yan; Riikilä, T. I.; Zwinger, T. (2014-12-01). "Termini of calving glaciers as self-organized critical systems". Nature Geoscience. 7 (12): 874–878. doi:10.1038/ngeo2290. ISSN 1752-0894.
  7. ^ Liu, Yan; Cheng, Xiao; Hui, FengMing; Wang, XianWei; Wang, Fang; Cheng, Cheng (2014-02-20). "Detection of crevasses over polar ice shelves using Satellite Laser Altimeter". Science China Earth Sciences. 57 (6): 1267–1277. doi:10.1007/s11430-013-4796-x. ISSN 1674-7313.
  8. ^ Sun, S.; Cornford, S. L.; Liu, Y.; Moore, J. C. (2014-08-21). "Dynamic response of Antarctic ice shelves to bedrock uncertainty". The Cryosphere. 8 (4): 1561–1576. doi:10.5194/tc-8-1561-2014. ISSN 1994-0424.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  9. ^ "Data-sharing Platform of Polar Science". www.chinare.org.cn. Retrieved 2016-06-13.
  10. ^ Hui, Fengming; Ci, Tianyu; Cheng, Xiao; Scambos, Ted A.; Liu, Yan; Zhang, Yanmei; Chi, Zhaohui; Huang, Huabing; Wang, Xianwei (2014-05-01). "Mapping blue-ice areas in Antarctica using ETM+ and MODIS data". Annals of Glaciology. 55 (66): 129–137. doi:10.3189/2014AoG66A069.
  11. ^ Hui, FengMing; Cheng, Xiao; Liu, Yan; Zhang, YanMei; Ye, YuFang; Wang, XianWei; Li, Zhan; Wang, Kun; Zhan, ZhiFei (2012-08-06). "An improved Landsat Image Mosaic of Antarctica". Science China Earth Sciences. 56 (1): 1–12. doi:10.1007/s11430-012-4481-5. ISSN 1674-7313.
  12. ^ "世界首张全南极洲地表覆盖图来到南极 - 新华科技 - 新华网" [The world's first full-coverage map of Antarctica to the South Pole Surface]. news.xinhuanet.com. Xinhua News. 2012-12-01. Retrieved 2016-06-13.
  13. ^ Zhai, Mengxi; Li, Xinqing; Hui, Fengming; Cheng, Xiao; Heil, Petra; Zhao, Tiancheng; Jiang, Tianyu; Cheng, Cheng; Ci, Tianyu (2015-10-01). "Sea-ice conditions in the Adélie Depression, Antarctica, during besetment of the icebreaker RV Xuelong". Annals of Glaciology. 56 (69): 160–166. doi:10.3189/2015AoG69A007.
  14. ^ Wang, Xianwei; Cheng, Xiao; Hui, Fengming; Cheng, Cheng; Fok, H.S.; Liu, Yan (2014-01-01). "Xuelong Navigation in Fast Ice Near the Zhongshan Station, Antarctica". Marine Technology Society Journal. 48 (1): 84–91. doi:10.4031/MTSJ.48.1.5.
  15. ^ Min, Ren (2014-02-11). "程晓：为"雪龙"带路—新闻—科学网" [The "Snow Dragon" lead the way]. news.sciencenet.cn. ScienceNet. Retrieved 2016-06-13.
  16. ^ "我校科研人员助力"雪龙"号南极成功脱困" [University researchers help "Snow Dragon" successfully turning around the Antarctic]. gdbnu.com. Beijing Normal University. 2014-01-09. Retrieved 2016-06-13.
  17. ^ "Antarctica losing enough ice every year to fill the Three Gorges reservoir 19 times". South China Morning Post. 2015-04-06. Retrieved 2016-06-13.
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