Statistical assessment of aerosol influence on cloud properties

The research project will investigate the relation between microphysical properties of sub-cloud aerosols and clouds referring to droplet number and droplet size spectrum, which can contribute to a better understanding of the first indirect aerosol effect, one of the most concerning and significant uncertainties in climate change. The relation will be investigated by long term detailed in situ measurements of droplet activation in 120 m height and remote sensing observations (Sunphotometer, radar, microwave radiometer, and ceilometer).

By statistical analysis of the long term observations, suitable time periods of well-mixed planetary boundary layer conditions will be filtered out, in which droplet activation of the sub-cloud aerosols may be related to cloud microphysical properties. The goal is to improve the predictability of cloud microphysical properties (droplet number concentration, droplet size spectrum, and cloud optical properties) based on aerosol properties (critical parameters of droplet activation).

Figure 1: Research motivation. Figure 2: In-situ CCN measurement instruments: Cloud Condensation Nuclei Counter(CCN-C), Condensation Particle Counter (CPC), Differential Mobility Analyzer.

• ER14: Experienced Researcher on ITaRS Research Project No.14
• Highest Degree: Doctor
• Place of Birth: Lanzhou, China

••••••••••••••••••••••••••••••••••••••••••• CURRICULUM VITAE Xinxin Li •••••••••••••••••••••••••••••••••••••••••••

Research Field

Aerosol cloud interaction, Atmospheric remote sensing, passive microwave remote sensing for hydroclimatology, geographic information system, topography effects on hydrologic parameter retrievals from spaceborne data, microwave radiative transfer modelling, meteorology.

Education

• Sep. 2010 - July 2013: PhD, School of Geography and Remote Sensing Science, Beijing Normal University, Beijing, China.
• Sep. 2011 - Sep. 2012: Joint PhD, Institute for Bio- and Geoscience IBG-3: Agrosphere, Forschungszentrum Jülich, Jülich, Germany.
• Sep. 2008 - July 2010: Master, School of Geography and Remote Sensing Science, Beijing Normal University, Beijing, China.

Professional Qualifications

• Computer Skills: ENVI, ArcGIS, CAD, Microsoft, Latex, Internet technology
• Programming: Fortran, Matlab, IDL, C
• Modelling: AIEM , Dobson model, Hydrus, Dream
• Language

  • Mandarine (Level: native, first class)
  • English (Level: fluent)
  • German (Level: general conversation)

• Other skills: Accordion, Modern dance, Chinese classical dance, Swimming.

Awards

• 2013
  • Excellent student of ITaRS Summer School 2013
    
  • Excellent Graduated PhD of Beijing
• 2011-2012 Graduate student scholarship for excellent academic records of Beijing Normal University
• 2010-2011

• Graduate student scholarship for excellent academic records of Beijing Normal University

• Second prize for excellent paper of the 2nd National Quantitative Remote Sensing Congress

• 2009-2010 Graduate student scholarship for excellent academic records of Beijing Normal University
• 2007-2008 First prize of National Scholarship

Activities

• International cofference presentations and workshops

• Meteorological Technology World Expo, Oct. 2015, in Brussels, Belgium. Oral presentation: The observation of the first aerosol indirect effect on cloud microphysical properties at JOYCE.

• The 26th General Assembly of the International Union of Geodesy and Geophysics (IUGG), June 2015, in Prague, Czech Republic

• Academic Writing and Data Assimilation Workshop, March 2015, in Barcelona, Spain
• The 23nd Aerosols, Clouds, and Trace gases Research InfraStructure network (ACTRIS) workshop, Jan. 2015, in Delft, Holland
• The 6th Women in Science, Nov. 2014, in Cologne, Germany
• The 22nd ACTRICS workshop, April 2014, in Warsaw, Poland
• EGU 2012, 22. – 27. April, 2012, Vienna, Austria
• IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2012,
22. – 27. July, 2012, Munich, Germany
• IGARSS 2011, 24. – 29. July, 2011, Vancouver, Canada
• AGU 2010 Fall Meeting, 13. – 17. December, San Francisco, California, USA
• IGARSS 2010, 25. – 30. July, 2010, Honolulu, Hawaii, USA

• Editorial
  • A Referee for Journal Applied of Remote Sensing (JARS) (2012)
  • A Referee for Journal Ecological Informatics (2013)
• Teaching Experience

2009-2010, professor assistant in Beijing Normal University, tutoring undergraduate students on “Microwave Remote Sensing” course.

Project Experience

• Sep. 2011 -2013 National Nature Science Funding: "Soil-vegetation hydrological and thermal parameter retrieval and dynamic change analysis by multi-source remote sensing signatures", funded by National Nature Science Funding Communitee of China.
• Sep. 2009 - Sep. 2012 European Union - China FP7 Project, "Improving observing systems for water resource management"funded by European Union Communitte under FP7 topic ENV.2007.4.1.4.2.
• Oct. 2008 - Dec. 2012 The 3th task of National 973 Project: "Passive microwave remote sensing", funded by National Ministry of Science and Technology of China.
• June. 2009 - Aug. 2012 The MIT-Tsinghua “Clean Energy City” Project: Understanding the Regional Impact of China’s Energy and Climate Policies, sponsored by the China Sustainable Energy Program of the Energy Foundation, responsible for the survey design and implementation supervision in Jinan, China.

[1] Xinxin Li, Lixin Zhang, Lutz Weihermüller, Lingmei Jiang, Harry Vereecken. Measurement and Simulation of Topographic Effects on Passive Microwave Remote Sensing over Mountain Areas: A Case Study from Tibetan Plateau. IEEE Transactions on Geoscience and Remote Sensing, 2014: 52(02): 1489 - 1501.
[2] Xinxin Li, Lutz Weihermüller, Lixin Zhang, Lingmei Jiang, Harry Vereecken. Analyzing topography effects for L-band radiometry using an improved model approach. Proceeding of IEEE IGARSS 2012, 2012: 682-685.
[3] Xinxin Li, Lixin Zhang, Lingmei Jiang, Shaojie Zhao. Relief effects of mountain areas on soil moisture retrieval using passive C-band: A case study in Qinghai-Tibet Plateau, Journal of Remote Sensing, 2012, 16 (04): 850-867.
[4] Xinxin Li, Lixin Zhang, Lingmei Jiang. Advances in Mountainous Relief Effects on Passive Microwave Remote Sensing, Remote Sensing for land and Resources, 2011, 3:14-19.
[5] Xinxin Li, Lixin Zhang, Lingmei Jiang, Tao Zhang, Zhenguo Hao. Measuring and Simulating Passive C-band Microwave Relief Effects over Uncovered Land Surface in Remote Sensing. Proceeding of IEEE IGARSS 2011, 2011: 3113-3116.
[6] Xinin Li, Lixin Zhang, Linmei Jiang, Shaojie Zhao, Tianjie Zhao. Measurement and Simulation of Hill-slope Effects on Passive Microwave Remote Sensing, Remote Sensing Technology and Application, 2011, 26(1): 74-81.
[7] Xinin Li, Lixin Zhang, Linmei Jiang, Shaojie Zhao, Tianjie Zhao. Simulation and Measurement of Relief effects on Passive Microwave Radiation, Journal of Remote Sensing, 2011, 15(1): 100-110.
[8] Xinxin Li, Xuemei Shao. East Asian Summer Monsoon Rainfall in Eastern China under the Influence of Spatial Characteristics of the Pattern Analysis. Journal of Beijing Normal University (Natural Science), 2010, 46 (6): 729-732.
[9] Xinin Li, Lixin Zhang, Linmei Jiang, Shaojie Zhao, Tianjie Zhao, Simulation and Measurement of Relief Effects on Passive Microwave Radiation. Proceeding of IEEE IGARSS 2010, 2010, 3015-3018.
[10] Lixin Zhang, Lingmei Jiang, Linna Chai, Shaojie Zhao, Tianjie Zhao, Xinxin Li. Research Advances in Passive Microwave Remote Sensing of Freeze-Thaw Processes over Complex Landscapes, Advance in Earth Science, 2011, 26 (10): 9-15.
[11] Tianjie Zhao, Lixin Zhang, Rajat Bindlish, Jiancheng Shi, Lingmei Jiang, Yunqing Li, Shaojie Zhao, Tao Zhang, Xinxin Li. Estimating Vegetation Water Content during A Growing Season of Cotton. Proceeding of IEEE IGARSS 2011, 2011.
[12] Bin Zou, Lingbin Yang, Zhijun Tong, Xinxin Li. Spatio-temporal Change of Land Use/Cover in Semi-arid Region: A Case Study of Tongyu County, Jiling Province. Remote Sensing Technology and Application, 2007, 22 (5): 602-607.