师资

冉将军
助理教授
ranjj@sustech.edu.cn

在Delft University of Technology和中国科学院大学独立获得双博士学位。2018年12月入职南方科技大学地球与空间科学系,任助理教授。主要从事多源遥感对地监测、卫星重力学、无人机点云实景建模、地球表层物质迁移、极地冰盖质量变化等方面的研究。


重点参与我国首颗重力卫星的指标论证和预研工作,并撰写英文学术著作章节1章;在国内率先利用短弧长法攻克GRACE数据反演高精度时变地球重力场模型的难关;利用GRACE解算的地表质量变化产品(以Greenland冰川为例)略优于美国NASA同类产品;基于多源遥感卫星数据(Landsat系列,Sentinel系列等)提取地面目标的时空变化规律。在The Cryosphere,Journal of Geodesy,Journal of Geophysical Research,Geophysical Journal International等期刊发表论文约30篇。担任Journal of Geodesy,Remote Sensing of Environment,Marine Geodesy等期刊审稿人。


教育背景:

2011-2017,博士,卫星重力学,Delft University of Technology

2008-2014,博士,大地测量学与测量工程,中国科学院测量与地球物理研究所


工作经历:

2019.11                 访问学者,剑桥大学

2018.12 - 至今       助理教授,南方科技大学地球与空间科学系

2017.08 - 2018.12  客座研究员,Delft University of Technology

2018.02 - 2018.10  Postdoctoral Fellow,The Chinese University of Hong Kong

2011.11 - 2017.07  Research Assistant,Delft University of Technology


研究领域:

多源遥感对地监测(如Landsat,Sentinel,CryoSat等)

全球冰盖(川)和湖泊的质量平衡及机制分析

卫星重力反演及其应用

无人机点云实景建模

深度学习(Deep Learning)的地学应用


研究兴趣:

组合导航在智能装备(包括无人驾驶汽车)的应用

利用现代空间大地测量技术研究地震前后的重力变化

行星重力学


欢迎双一流高校本/硕/博优秀在读学生申请本课题组硕/博/博士后/访问学生等职位。根据学校相关标准发放补贴。详见课题组网站:https://grav-cryo.gitee.io/


教学:

空间大地测量学概论,ESS303

主要讲述内容:GNSS、卫星测高、卫星重力、InSAR等基础知识。


重力与固体潮,ESS421

主要讲述内容:调和函数、重力位、高程系统、固体潮等基础知识。


论文专著:

Book Chapter

Jiangjun Ran, Min Zhong, Houze Xu. 2015. Expected Accuracy and Requirement Analysis of China’s Future Satellite Gravity Mission (Ed.), GRACE Follow-On in China: Space advance gravity measurement program (pp. 1-14). Saarbrücken : LAP LAMBERT Academic Publishing


Journal Articles  (* for corresponding author; # for group members, e.g., students, postdocs)


2021


27. X. Deng#, Jiangjun Ran*. 2021. Higher-order gravitational potential gradients by tensor analysis in spherical coordinates. Journal of Geodesy 95, 88 . https://doi.org/10.1007/s00190-021-01539-z

26. Jiangjun Ran,  Pavel Ditmar. 2021. Analysis and mitigation of biases in Greenland ice sheet mass balance trend estimates from GRACE mascon products. Journal  of  Geophysical Research Solid Earth. In press

25. X  Wan, W  Han, J  Ran, W  Ma, RF Annan, B  Li. 2021. Seafloor density contrast derived from gravity and shipborne depth observations: A case study in a local area  of Atlantic Ocean. Frontiers in Earth Science 9, 303.

24. L  Cai, X  Wan, H  Hsu, J  Ran, X  Meng, Z  Luo, Z  Zhou. 2021. The earth’s gravity field recovery using the third invariant of the gravity gradient tensor from  GOCE. Scientific Reports 11 (1), 1-13.

23. X Wan, J Yu, L Liang, J Ran, RF Annan. 2021. Analysis of limitations on recovery of gravity field based on satellite gravity gradient data. Geodesy and  Geodynamics 12 (1), 31-42.


2020


22. W. Liu#, X. Chen#, Jiangjun Ran*, et al. 2020. A Novel Lightweight Multi-Task CNN for Automatically Extracting Lake Area and Shoreline from Remote Sensing Images. Remote Sensing. In press

21. X. Deng#, Jiangjun Ran*. 2020. Comment on"Integral formulas for transformation of potential field parameters in geosciences". Earth-Science Reviews. In press

20. X Yang, S Tian, W Feng,Jiangjun Ran, W You, Z Jiang, X Gong. 2020. Spatio-Temporal Evaluation of Water Storage Trends from Hydrological Models over Australia Using GRACE Mascon Solutions.  Remote Sensing 12 (21), 3578.

19. Jiangjun Ran,  Natt Tangdamrongsub. Xiaoyun Wan. 2020. The impact of error covariance matrix structure of GRACE’s gravity solution on the mass flux estimates  of Greenland Ice Sheet . Advances in Space Researches. Accepted.


2019


18. Groh, A.; Horwath, M.; Horvath, A.; Meister, R.; Sørensen, L.S.; Barletta, V.R.; Forsberg, R.; Wouters, B.; Ditmar, P.; Jiangjun Ran; Klees, R.; Su, X.; Shang, K.; Guo, J.; Shum, C.K.; Schrama, E.; Shepherd, A. 2019.  Evaluating GRACE Mass Change Time Series for the Antarctic and Greenland Ice Sheet—Methods and Results. Geosciences 2019, 9, 415.

17. Yao-Chong Sun, Makoto Uyeshima, Hengxin Ren, Qinghua Huang, Koki Aizawa, Kaori Tsukamoto, Wataru Kanda, Kaori Seki, Takahiro Kishita, Takao Ohminato, Atsushi Watanabe, Jiangjun Ran and Xiaofei Chen. 2019. Numerical simulations to explain the coseismic electromagnetic signals: a case study for a M5.4  aftershock of the 2016 Kumamoto earthquake. Earth Planets Space 71, 143 (2019). https://doi.org/10.1186/s40623-019-1122-7

16. Yang, Y., Li, F., Hwang, C., Ding, M., Jiangjun Ran. 2019. Space‐time evolution of Greenland Ice Sheet elevation and mass from Envisat and GRACE  data. Journal of Geophysical Research: Earth Surface,124. 


2018


15. Jiangjun Ran, Miren Vizcaino, Pavel Ditmar, Michiel R. van den Broeke, Twila Moon, Ellyn M. Enderlin, Bert Wouters and Roland Klees. 2018. Seasonal mass  variations show timing and magnitude of meltwater storage in the Greenland ice sheet, The Cryosphere. 12(9), 2981-2999, doi:10.5194/tc-12-2981-2018.

14. Jiangjun Ran, Pavel Ditmar, Roland Klees et al. 2018. Statistically optimal estimation of Greenland Ice Sheet mass variations from GRACE monthly solutions using   an improved mascon approach, Journal of Geodesy. 92(3), 299-319, doi:10.1007/s00190-017-1063-5.

13. Jiangjun Ran, Pavel Ditmar, Roland Klees et al. 2018. Optimal mascon geometry in estimating mass anomalies within Greenland from GRACE. Geophysical Journal  International. 214(3), 2133–2150.

12. Jiangjun Ran, Xiaoyun Wan. 2018. GRACE observed mass loss in the middle and lower Yangtze basin, Geodesy and Geodynamics. Accepted.

11. Pavel Ditmar, Natt Tangdamrongsub, Jiangjun Ran*, Roland Klees. 2018. Estimation and reduction of random noise in mass anomaly time-series from satellite gravity data by minimization of month-to-month year-to-year double differences, Journal of Geodynamics. 119, 9-22, doi.org/10.1016/j.jog.2018.05.003.

10. Xiaoyun Wan, Jiangjun Ran*, Shuanggen Jin. 2018. Sensitivity analysis of gravity anomalies and gradient data for bathymetry inversion. Marine Geophysical   research. https://doi.org/10.1007/s 11001-018 -9361-8

9.  Xiaoyun Wan, Jiangjun Ran*, Jinhai Yu, Xiangchao Meng. 2018. An alternative method to improve gravity field models by incorporating GOCE gradient data. Earth Sciences Research Journal. 22(3), In press.

8.  Tangdamrongsub, N., Han, S. C., Tian, S., Müller Schmied, H., Sutanudjaja, E. H., Jiangjun Ran, Feng, W. 2018. Evaluation of Groundwater Storage Variations  Estimated from GRACE Data Assimilation and State-of-the-Art Land Surface Models in Australia and the North China Plain. Remote Sensing, 10(3), 483.  doi:10.3390/rs10030483


2010-2017


7.  Jiangjun Ran, Min Zhong, Houze Xu et al. 2015. Analysis of the gravity field recovery accuracy from the low-low satellite-to-satellite tracking mission. Chinese   Journal of Geophysics- Chinese Edition, 58(10): 3487-3495, doi: 10.6038/cjg20151005

6.  Jiangjun Ran, Min Zhong, Houze Xu et al. 2014. Global temporal gravity field recovery using GRACE data. Chinese Journal of Geophysics- Chinese Edition, 57(4): 1032-1040, doi:10.6038/cjg 20140402

5.  Changqing Wang, Houze Xu, Min Zhong, Wei Feng, Jiangjun Ran, Fan Yang. 2015. An investigation on GRACE temporal gravity field recovery using the dynamic approach. Chinese Journal of Geophysics- Chinese Edition, 58(3): 756-766, doi: 10.6038/cjg20150306

4.  Changqing Wang, Houze Xu, Min Zhong, Jiangjun Ran, Jiangjun Chun. 2015. A study on the effect of ocean tides error in GRACE temporal gravity field recovery. Chinese Journal of Geophysics- Chinese Edition, 58(9): 3072-3079, doi: 10.6038/cjg20150905

3.  Ziren Luo, Min Zhong, Xing Bian, Peng Dong, Yuhui Dong, Wei Gao, Hongyin Li, Yuqiong Li, Heshan Liu, Jiangjun Ran, Mingxue Shao, Wenlin Tang, Peng Xu, Gang Jin. Mapping Earth's gravity in space: Review and future perspective. Advances in Mechanics, 44(1): 291-337. doi:10.6052/ 1000-0992-14-047

2.  Jiangjun Ran, Houze Xu et al. 2012. Expected accuracy of the global gravity field for next GRACE satellite gravity mission. Chinese Journal of Geophysics- Chinese Edition, 55(9): 2898-2908, doi: 10.6038/j.issn.0001- 5733.2012.09.009

1.  Wei You, Yunzhong Shen, Dongmin Fan, Jiangjun Ran. 2010. The algorithm of Earth's gravitational field recovery based on satellite's orbital perturbation theory. Chinese Journal of Geophysics- Chinese Edition, 53(11): 2574-2581, doi: 10.3969/j.issn.0001-5733.2010.11.005.