Satellite oceanography
Ocean remote sensing
Ocean dynamics

Ph.D. in Physical Oceanography, 2006, Graduate School of Oceanography, 
University of Rhode Island, Kingston, USA
M.S. in Physics (Optics), 1997, Fudan University, Shanghai, China
​A.S. in Electrical Engineering, 1990, Ocean University of China, Qingdao, China

Caltech Postdoctoral Scholar, 2009-present, NASA Jet Propulsion Laboratory California Institute of Technology
Postdoctoral Research Associate, 2008-2009, University of South Florida
Postdoctoral Fellow, 2006-2008, University of Texas at Austin
Ph.D. Candidate, 2001-2006, Graduate School of Oceanography, University of Rhode Island
​Assistant Scientist, 1997-2001, The First Institute of Oceanography, SOA,Qingdao, China.

Caltech Scholar, 2009, California Institute of Technology

Alumni Fellowship, 2006, GSO, University of Rhode Island.

​URI President Travel Award, 2006, University of Rhode Island.

1. Xiang,L.,Xu,Y*., et al. Reconstruction of interior Velocity in the Southern Pacific Ocean Using Satellite and Argo Data. IEEE Geoscience and Remote Sensing Letters .2025.22:1-5.Related reports：http://qdio.cas.cn/2019Ver/News/kyjz/202412/t20241213_7457396.html 

2. Guo,P., Xu,Y*., et al. Study on the sound propagation characteristics based on PIES observations near Dongsha Islands.Journal of Applied Oceanography.2024.43(2).

3. N,Skanupong., Xu,Y*., et al. The convolutional neural network for Pacific decadal oscillation forecast.Environmental Research Letters.2024.19(12).  Related reports：http://qdio.cas.cn/2019Ver/News/kyjz/202411/t20241112_7438017.html

4. Han,J., Xu,Y., et al. Deep kinetic energy response to the variability of the Kuroshio Extension. Journal of Geophysical Research: Oceans.2024.129(10), e2024JC020951.                                                                                                       Related reports：http://qdio.cas.cn/2019Ver/News/kyjz/202410/t20241003_7393585.html

5. Wang,J., Xu,Y*., et al. Improving High-Frequency Marine Gravity Anomaly Recovery: The Efficacy of SWOT Wide-Swath Altimetry.IEEE Geoscience and Remote Sensing Letters.2024.21:1-5.                                                               Related reports：http://qdio.cas.cn/2019Ver/News/kyjz/202408/t20240809_7261354.html

6. Yang,L., Xu,Y*., et al. Retrieval of Ocean Wave Characteristics via Single-Frequency Time-Differenced Carrier Phases From GNSS Buoys.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING.2024.62.

   Related reports： http://qdio.cas.cn/2019Ver/News/kyjz/202404/t20240427_7135820.html

     http://qdio.cas.cn/2019Ver/News/kyjz/202404/t20240402_7067782.html                                                                         https://spectrum.ieee.org/ocean-buoy

7. He,J., Xu,Y*., et al. Sea Surface Height Wavenumber Spectrum from Airborne Interferometric Radar Altimeter.Remote Sens. 2024.16.Related reports：

   https://english.cas.cn/newsroom/research_news/earth/202404/t20240422_660774.shtml 

   http://qdio.cas.cn/2019Ver/News/kyjz/202404/t20240417_7114566.html.

8. Yue,W., Xu,Y*., et al. Prediction of 3-D Ocean Temperature Based on Self-Attention and Predictive RNN.IEEE Geoscience and Remote Sensing Letters.2024.

9. Xiang,L., Xu,Y*., et al. Retrieval of Subsurface Velocities in the Southern Ocean from Satellite Observations. Remote Sens. 2023.15:5699. https://doi.org/10.3390/rs15245699.

10. Yang,L., Liu,M., Liu, N., Guo,J., Lin,LA ., Zhang,Y., Du,X., Xu,Y., et al. Recovering Bathymetry From Satellite  Altimetry-Derived Gravity by Fully Connected Deep Neural Network.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS.2023.20.DOI:10.1109/LGRS.2023.3302992.

11. Liu,X., Kong,W., Sun,H*., Xu,Y., et al. An Improved Altimeter in-Orbit Range Noise-Level Estimation Approach Based on Along-Track Differential Method.Remote Sens. 2022.14(24):6250.

12. Yang, L., Xu,Y*., et al. Monitoring the Performance of HY-2B and Jason-2/3 Sea Surface Height viathe China Altimetry Calibration Cooperation Plan.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING (TGRS).2022 .Doi: 10.1109/TGRS.2022.3153631.

13. Zhu, L., Yang, L., Xu,Y., et al. Independent Validation of Jason-2/3 and HY-2B Microwave Radiometers Using China Coastal GNSS.IEEE Transactions on Geoscience and Remote Sensing.2022.DOI10.1109/TGRS.2021.3106650.

14. Liu,Y., Xu,Y*. The energy and enstrophy cascades in the geostrophic vortex with slowly varying inertia-gravity wave spirals.Physics of Fluids.2021.DOI: 10.1063/5.0062814.                                                                                                    Related reports：http://www.qdio.cas.cn/2019Ver/News/kyjz/202109/t20210927_6215544.html

15. Jiang,Q., Xu,Y^+,*., et al. Wind-Generated Gravity Waves Retrieval From High-Resolution 2-D Maps of Sea Surface Elevation by Airborne Interferometric Altimeter. IEEE Geoscience and Remote Sensing Letters.2022.doi: 10.1109/LGRS.2021.3088516.

    Related reports：http://www.qdio.cas.cn/2019Ver/News/kyjz/202106/t20210630_6121796.html

16. Li,H., Xu,Y^+,*. Barotropic and baroclinic inverse kinetic energy cascade in the Antarctic.J. Phys. Oceanogr.2021.51.

    Related reports：http://www.cas.cn/syky/202102/t20210224_4778586.shtml?from=singlemessage

17. Zhao,D., Xu,Y^+,*., et al. Global chlorophyll distribution induced by mesoscale eddies. Remote Sensing of Environment.2021.254.

    Related reports：http://www.qnlm.ac/page?a=5&b=2&c=261&d=1&p=detail

18. Yang,L., Xu,Y+., et al. Calibration of an Airborne Interferometric Radar Altimeter over the Qingdao Coast Sea, China. Remote Sens. 2020.12:1651.
19. Hu,D., Xu,Y*. A New Method of De-Aliasing Large-Scale High-Frequency Barotropic Signals in the Mediterranean Sea. Remote sensing: 2020, 13, 2157
20. Zhao,D., Gao,L., Xu,Y*. Quantification of the impact of environmental factors on chlorophyll in the open ocean.  J. Ocean. Limnol.2020.7120.
21. Huang,C., Xu,Y*. Update on the Global Energy Dissipation Rate of Deep-Ocean Low-Frequency Flows by Bottom Boundary Layer.J. Phys. Oceanogr.2018.48:1243-1255. 
22. Huang,C., Xu,Y*. Spatial and seasonal variability of global ocean diapycnal transport inferred from Argo profiles. Journal of Oceanology and Limnology. 2018.
23. Ma,J., Xu, Y*. Using multisatellite altimetry estimate energy fluxes in South China Sea. Journal of Oceanology and Limnology.2018. 
24. Hong,L., Xu,Y*. Improving mesoscale observations from Satellite altimetry using pressure and tide gauge measurements in the Japan Sea. International Journal of Remote Sensing.2017.38(22) :6247-6267. 
25. Xu,Y*., Gao,L., et al. New generation altimetry satellite SWOT and its reference to Chinas swath altimetry satellite.Remote Sensing Technology and Application.CSCD: 2017.32(1) :79-89.
26. Hui,Z., Xu,Y*. The impact of wave-induced Coriolis-Stokes forcing on satellite-derived Ocean Surface Currents.J. Geophys. Res. Oceans.2016.121(1):88-97. 
27. Liu,C., Xu,Y*. Quantification and Evaluation of the PDO Influence on North Pacific SLR during 1950-2010.marine science.2017.41(4):410-426.
28. Ge,L., Xu,Y*. Comparison of sea surface height anomalies derived by pressure-sensor-equipped inverted echo sounders and satellite altimetry in the Southwest.Marine Sciences.2016.40(2):128-135. 
29. Yang,T., Xu,Y*. Estimation of the time series of the meridional heat transport across 15{degree sign}N in the Pacific Ocean from Argo and satellite data.J.Geophys. Res. Oceans.2015.120(4):3043-3060. 
30. Li,Y., Xu,Y*. Penetration depth of diapycnal mixing generated by wind stress and flow over topography in the northwestern Pacific. J. Geophys. Res. Oceans. 2015.119:5501-5514.
31. Liu,H., Zhang,Q., Duan,Y., Xu,Y*. Numerical Study on the Mechanism of Seasonal Variation of Meridional Overturning Circulation in the North Pacific. Advances in Marine Science.2016.34(3):347-357. 
32. Li,H., Xu,Y*. Seasonal variability of eddy kinetic energy spectra and its mechanism in the north pacific subtropical countercurrent.Oceanologia et limnlologia sinica.2017.48(5):932-943. 
33. Li,Y., Xu,Y*. The study of ocean warming trend based on sealevel change in 2002-2014.Oceanologia et limnlologia sinica.2017.48(4):712-720. 
34. Liu,H., Zhang,Q., Duan,Y., Xu,Y*. Numerical study on the interannual variation of the North Pacific Meridional Overturning Circulation.Journal of Applied Oceanography.2016.35(3):329-338. 
35. Liu,H., Zhang,Q.,Duan,Y., Xu,Y*. A numerical study on the interannual variation of the North Pacific Meridional Overturning Circulation. Marine Sciences.2016.40(1):155-160. 
36. Liu,S., Jia,Y., Qi,Z., Wei,E*. Brightness Temperature Model of Sea Foam Layer at L-band. Chinese Journal of Oceanology and Limnology.2015.14(1):38-46. 
37. Si,Z., Xu,Y*. Influence of the Pacific Decadal Oscillati on Regional Sea Level Rise in the Pacific Ocean from 1993 to 2012.Chinese Journal of Oceanology and Limnology.2014.32(6):1414-1420.
38. Zhang,X., Xu,Y*. Design and Implementation of Adaptive Noise Canceler Based on RLS Algorithm.Recent Advances in Mathematical and Computational Methods.2015. 
39. Zhang,X., Xu,Y*. A New Method of CDOM Absorption in China East Coastal Waters.Recent Researches in Applied Informatics.2015. 
40. Zhang,X., Zheng,Z.,I,Asanuma., Xu,Y*. A new kind of hybrid filter based on the intersecting cortical model and the improved Extremum-and-Median filter.Artificial Life and Robotics.2014.19（2）:115-119. 
41. Zhang,X., Zheng,Z., I, Asanuma2., Xu,Y*. A New Kind of Super-Resolution Reconstruction Algorithm Based on the ICM and the Constrained Cubic Spline Interpolation.Information -An International Interdisciplinary Journal.2013.16(11):8027-8036. 
42. Yan,X., Li,Y., Xu,Y*. Analysis of temporal-spatial variations of urbulent diapycnal mixing in the northwestern Pacific.Oceanologia et Limnologia Sinica.2014.45(6):1148-1157. 
43. Xu,Z., Yin,B., Hou,Y., Xu,Y. Variability of internal tides and near-inertial waves on the continental slope of the northwestern South China Sea.JOURNAL OF GEOPHYSICAL RESEARCH.2013.118:197-211. 
44. Xu,Y., L-L Fu. The effects of altimeter instrument noise on the estimation of the wavenumber spectrum of sea surface height.J. Phys. Oceanogr. 2012.42:2229-2233.
45. Xu,Y., L-L Fu., et al. The global characteristics of wavenumber spectrum of ocean surface wind.J. Phys. Oceanogr.2011.41:1576-1582. 
46. Xu,Y., L-L Fu. Global variability of the wavenumber spectrum of oceanic mesoscale turbulence.J. Phys. Oceanogr.2011.41:802-809.
47. Xu,Y., Z-L.Yang. A method to study the impact of climate change on variability of river flow: an example from the Guadalupe River in Texas.Climatic Change. 2012.113:956-976.

48. Xu,Y. Sea level variability from satellite altimetry and field measurements: Statistical data analysis.comparison and signal retrieval. 2010.VDM Verlag Dr. Müller, ISBN-13:978-3639017762.

    https://www.amazon.com/level-variability-satellite-altimetry-measurements/dp/3639017765

49. Xu,Y., D.R.Watts, et al. De-Aliasing of Large-Scale High-Frequency Barotropic Signals from Satellite Altimetry in the Japan/East Sea.Oceanic Technol.2008.25:1703-1709. 
50. Xu,Y., J,Li., et al. Ocean circulation from satellite altimetry: progresses and challenges, in Ocean Circulation and El Nino.Nova Science Publishers.2009. 
51. Xu,Y. Sea level variability from satellite altimetry and field measurements.VDM Publishing Dr. Müller. 2010. ISBN-13 ‏ :978-3639017762 https://www.amazon.com/level-variability-satellite-altimetry-measurements/dp/3639017765.

52. Xu,Y., Scott R B. Subtleties in forcing eddy resolving ocean models with satellite wind data.Ocean Modeling. 2008.20:240-251. 

53. Xu,Y., D. R. Watts, et al. Fundamental-mode basin oscillations in the Japan/East Sea.Geophys. Res. Lett.2007.34:L04605.
54. Xu,Y., D.R.Watts, et al. Coupled patterns between fields of dynamic height and bottom pressure in the Japan/East Sea.Ocean Science Journal.2009.44:35-42. 
55. Scott, R.B., Xu,Y. An update on the wind power input to the surface geostrophic flow of the World Ocean.Deep-Sea Res. I: 2009.50.295-304.
56. Xu,Y., Pan,J., et al. The Methods for Atmospheric Water Range Corrections and Their Effects on the Altimeter Data Appl ication.Journal of Oceanography of Huanghai & Bohai Seas.2000.18(3):01-06.
57. Xu,Y., K.Han., et al. Studies on Azimuthal Orientation of Hemicyanine Molecules in LB Films. Acta Physico-Chimica Sinica.1996.12:836-840.
58. Kiu,H., Xu,Y., et al. Studies on Optical Nolinear Anisotropy in Hemicyanine LB Multilayers.Acta Physico-Chimica Sinica.1996.12:589-593.
59. Lu,X.Z., K,Han., Xu,Y*., et al. Dipping induced in-plane molecular alignment of LB films.Mol.Cryst.Liq. Cryst.1997.294:23-26.
60. Lu,X., K,Han., Zhou,G., Xu,Y., et al. Flow dichroism in Langmuir-Blodgett multilayers.Proc. SPIE.1997.43 
61. Xu,Y., Lu,X., et al. Effect of chromophore interaction on optical nonlinearity in Langmuir-Blodgett Films.Acta Optica Sinica.1998.18:1025-1029.
62. Xia,D., Wang,Z., Zhang,S., Xin,H., Xu,Y. A development study of a portable instrument for measuring oil in seawater.J.Oceanogr. Bohai and Huanghai Seas.16:28-34.
63. Xia,D., Wang,Z., Bin,L., Zhang,S., Xin,H., Xu, Y. Experimental study on fluorimetry for measuring oil in seawater.Oceanologia et Limnologia Sinica.1999.30:104-109.
64. Xu,Y., K.L.Tracey, et al. Current Meter Data Report: Ulleung Basin in the Japan / East Sea.GSO Technical Report. 2003.2003-02.
65. Mitchell,D., Xu,Y., et al. PIES Data Report: Ulleung Basin in the Japan/East Sea.GSO Technical Report.2004. 
66. Park,J., D.R.Watts, M. Wimbush, J.W. Book, K.L.Tracey and Xu,Y.Rapid variability and its links to mesoscale circulation in the Japan/East Sea: basin oscillations, internal tides, and near-inertial oscillations.Oceanography.2006.19:76-85.

FIELD EXPERIENCE

RV Endeavor, September 2005, Chief Scientist: H. Thomas Rossby
Duty: analysis of velocity, CTD, acoustic measurements; contributed to the data report writing
RV Endeavor, November 2004, Chief Scientist: Dave Ullman
Duty: CTD team + determination of nutrients and oxygen, analysis of TS fields.

PROFESSIONAL ACTIVITIES

Reviewer for two proposals submitted to Climate Data Record (CDR) Program of NOAA’s National Climatic Data Center.
Journal Review: Journal of Atmospheric and Oceanic Technique, Water Resources Research, and Climatic Change.
Section Chairman, Numerical and Laboratory Models and Theory I, 2007 AGU Spring Meeting, Acapulco, Mexico.
Members: American Geophysical Union, American Meteorological Society.

OUTREACH

Judge chair of Earth/Space Sciences category, 61st Los Angeles County Science Fair, April 15, 2011.
Organizer of Ocean Science Element Meeting on 11:00 am Wednesday at NASA Jet Propulsion Laboratory, 2011.
Organizer of Caltech/JPL Ocean and Cryosphere Seminar, 2010.
​Member of Education Policy Committee of University of Rhode Island, 2005-2006.

现指导学生

向亮    博士研究生  070701-物理海洋学  

穆玉蓉   博士研究生  070701-物理海洋学  

杨磊    博士研究生  070701-物理海洋学  

曹赛超   博士研究生  070701-物理海洋学  

郭平    博士研究生  070701-物理海洋学 

NUTTA SKANUPONG   博士研究生  070701-物理海洋学

黄春帆   硕士研究生  070701-物理海洋学

吴宇豪   联培研究生  070701-物理海洋学

已指导学生

李颖    博士研究生  070701-物理海洋学  

杨婷婷   博士研究生  070701-物理海洋学  

刘超    硕士研究生  070701-物理海洋学  

李亚姣   硕士研究生  070701-物理海洋学  

黄超    博士研究生  070701-物理海洋学  

回贞立   博士研究生  070701-物理海洋学  

马静怡   硕士研究生  070701-物理海洋学  

赵丹丹   博士研究生  070701-物理海洋学  

李宏杰   博士研究生  070701-物理海洋学  

胡登辉   博士研究生  070701-物理海洋学  

姜秋富   博士研究生  070701-物理海洋学  

邢霄波   硕士研究生  070701-物理海洋学

刘英和   博士研究生  070701-物理海洋学  

赵裕慧   硕士研究生  070701-物理海洋学  

常天翔   硕士研究生   070701-物理海洋学 

崔 鹏    联培研究生  070701-物理海洋学 

张明琪   联培研究生  070701-物理海洋学 

岳伟豪   联培研究生  070701-物理海洋学