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Dr. Ha Hagemann

Ha Hagemann

Dr. Ha Hagemann

Regional Land and Atmosphere Modeling

Scientist

Phone: +49 (0)4152 87-1854

E-mail contact

  • Regional Earth System Modeling
  • Atmosphere-Ocean-Sea Ice Interaction and Feedback
  • Convection Parameterization
  • Machine Learning
  • Graphic Design

Former Publications

  • Ho T.M.H., Phan V.T., Le N.Q., Nguyen Q.T. (2011): Extreme climatic events over Vietnam from observational data and RegCM3 projections. Climate Research 49:87 -100
  • Nguyen Y.N., Nguyen T.S., Ho T.M.H. (2010): Study the impacts of climate on streamflow regime in the part of Nhue and Day river basin in Hanoi City territory. Proceedings of the fifth Conference of Asia Pacific Association of Hydrology and Water Resourses. APHW Conference. Hanoi, Vietnam
  • Phan V.T., Ngo-Duc T., Ho T.M.H. (2009): Seasonal and inter-annual variations of surface climate elements over Vietnam, Climate Research 40:49 - 60
  • Ho T.M.H., Phan V.T. (2009): Impact of Black Carbon on regional climate over South-east Asia and Vietnam in numerical simulations. Proceedings of the 6th Scientific Conference on the Global Energy and Water Cycle and 2nd Integrated Land Ecosystem – Atmosphere Processes Study (ILEAPs) Science Conference. Melbourne, pp. 303-304
  • Phan V.T., Ngo-Duc T., Ho T.M.H. (2009): Seasonal and Inter-annual variations of surface climate elements over Vietnam. Proceedings of International MAHASRI/HyARC workshop on Asian Monsoon. Danang, Vietnam, pp. 97-109
  • Ho T.M.H., Phan V.T. (2009): Numerical simulations of the effect of black carbon aerosol on regional climate in southeast Asia and Vietnam, Report of International MAHASRI/HyARC Workshop on Asian Monsoon. Danang, Vietnam, pp. 185-197
  • Ho T.M.H., Phan V.T., Le N.Q. (2006): On the regional climate simulation over Southeast Asia using RegCM, Report of Vietnam-Japan Joint Workshop on Asian Monsoon. Ha Long, Vietnam, pp. 62-68
  • Xin Kieu Thi, Ho T.M.H., Le D. (2005): First results of seasonal simulation using RegCM3 with the Tiedtke convection scheme for the Southeast Asia Region, 23th International Association of the Meteorology and Atmospheric Science Report. Bejing, China
  • Kieu T.X., Le D., Ho T.M.H (2004): Improving simulation of Southeast Asia rainfall using RegCM3 and problems for the tropical region, 6th International GAME Conference Report. Kyoto, Japan
  • Ngo-Duc T., Nguyen Q.T., Phan V.T., Ho T.M.H. (2011): Climate projections for Middle region of Central Vietnam using dynamical downscaling method. Vietnam National University, Hanoi, Journal of Science, Natural Sciences & Technology, 27 (3S): 70 - 79. (in Vietnamese)
  • Ho T.M.H., Phan V.T. (2009): Magnitude and trends in extreme monthly temperature in Vietnam in period of 1961-2007, Vietnam National University, Hanoi, Journal of Science, Natural Sciences & Technology, 25 (3S): 412 - 422. (in Vietnamese)
  • Ho T.M.H., Thai T.T.M. (2009): Tropical convective parameterization in regional climate models. Journal of Hydrometeorology, Hanoi, 587: 14 - 22. (in Vietnamese)
  • Thai T.T.M., Nguyen V.L., Ho T.M.H., Nguyen V.T (2009): Impacts of convective parameterizations on temperature and rainfall simulations over Vietnam and adjacent areas in the regional climate model RegCM3. Journal of Hydrometeorology, Hanoi, 583: 15 - 23. (in Vietnamese)
  • Phan V. T., Ho T.M.H., Luong M.T., Tran Q.D. (2009): Application of RegCM3 in seasonal prediction of surface climate elements in Vietnam. VNU Journal of Science, Vol 25, No. 4, 2009, pp. 241-251 (in Vietnamese)
  • Phan V.T., Ho T.M.H. (2008): An investigation of the sensitivity of the Regional Climate Model (RegCM3). Part I: Effects of Lateral Boundary Conditions on the Seasonal Climate Simulations over Vietnam and South East Asian Region, Journal of Hydrometeorology, Hanoi, 573 (9): 1 - 12. (in Vietnamese)
  • Phan V.T., Ho T.M.H. (2008): An investigation of the sensitivity of the Regional Climate Model (RegCM3). Part II: Effects of Convective Parameterizations on the Seasonal Climate Simulations over Vietnam and South East Asian Region, Journal of Hydrometeorology, Hanoi, 574 (10): 1 - 11. (in Vietnamese)
  • Ho T.M.H., Nguyen H.D. (2006): Testing adjustment method for 3-month-range simulated temperature field of regional climate model (RegCM3) over South-East Asia, Vietnam National University, Hanoi, Journal of Science, Natural Sciences & Technology, T. XXII, No2B AP – 2006, pp. 20-27. (in Vietnamese)
  • Ho T.M.H., Nguyen H.D. (2006): An experiment in daily rainfall forecasting using Artificial Neural Network to adjust numerical model output, Vietnam National University, Hanoi, Journal of Science, Natural Sciences & Technology, T. XXII, No1AP – 2006, pp. 1-10. (in Vietnamese)
  • Ho T.M.H. (2004): Artificial Neural Network and first application in temperature prediction over Southeast Asia region. Internal journal of young scientists, Hanoi University of Science, Vol. 2, pp. 57-61. (in Vietnamese)
  • Tran T.T., Ho T.M.H. (2002): Using Empirical Orthogonal Function for the analysis daily rainfall over Central Vietnam. Science Conference Report, Journal of Hydro-Meteorology. Hanoi, 7: 231-237. (in Vietnamese)

Education & Career

since 2020: Research Theme Speaker for topic on Coupled Regional Modelling
REKLIM (Helmholtz-Verbund Regional Climate Change and Humans)

since 2018: Co-chair of Working Group on Coupled Regional Earth System Models
Baltic Earth (Earth System Science for the Baltic Sea Region)

since 08/2010 Postdoctoral Researcher
Helmholtz-Zentrum Hereon, Institute for Coastal Research, Germany

since 2008 Science team member
Vietnamese National University Research group REMOCLIC

2009 – 2010 Vice Head
Department of Meteorology, Faculty of Hydro-Meteorology and Oceanography, Hanoi University of Science, Vietnam

2008 – 2010 Lecturer and Researcher
Faculty of Hydro-Meteorology and Oceanography, Hanoi University of Science, Vietnam

2004 – 2008 PhD. student
Faculty of Hydro-Meteorology and Oceanography, Hanoi University of Science, Vietnam (fully funded scholarship)

2002 – 2008 Researcher and Assistant Lecturer
Faculty of Hydro-Meteorology and Oceanography, Hanoi University of Science, Vietnam

1998 – 2002 Student of Honor Program for Talented Students (fully funded scholarship)
Vietnam National University, Hanoi, Vietnam

Projects

since 11/2019 Member
Advanced Earth System Modelling Capacity (ESM)

since 2014 Member
Earth System Science for the Baltic Sea Region (Baltic Earth) since 08/2010 Project team member
Helmholtz Network "Regional Climate Change" (REKLIM)

2009 – 2010 Project team member
The Impacts of Global Climate Change on Extreme Climate Events over Vietnam, Predictability and Adaptation Strategic Solutions. Vietnamese National Project

2008 – 2010 Project team lead
Determine the suitable convective parameterization scheme for the regional climate model RegCM3. Hanoi University of Science Project

2006 – 2008 Project team member
Implementation of Regional Climate Model for seasonal simulation/prediction of surface climate fields for development planning and disaster prevention. Main Point Project of Vietnam National University

2002 – 2005 Project team member
Studying - forecasting heavy rainfall over a large area by using modern technology to provide forecasting flooding device. Vietnamese National Project collaborated with experts of DWD, Germany

Awards

2016 The best presentation (Poster) at the REKLIM Workshop
2009 Travel and Accommodation Grant for the Early Career Scientist Workshop and GEWEX/ILEAPS Conference in Melbourne, Australia issued by the iLEAPS International Project Office
2006 Travel and Accommodation Grant for the 3rd KAGI 21 International Summer School issued by the Kyoto University Active Geosphere Investigations for the 21st Century COE Program
2003 – 2008 Vietnamese National University Scholarship fully funded for PhD
2002 Top three winners at the Meteorological Student Research Competition, Hanoi University of Science, Vietnam
1998 – 2002 Vietnamese National Honor Program Scholarship, fully funded