Ir. C.M.H. (Christine) Unal


Christine is a research scientist and lecturer in atmospheric radar remote sensing at the department Geoscience and Remote Sensing and TU-Delft Climate Institute.


Christine’s research focuses on methodologies for retrieving microphysical and dynamical properties of hydrometeors in the atmosphere using ground-based weather and cloud radar. Her main research themes are:

  • Rain microphysics: raindrop size distribution estimation.
  • Mixed-phased and liquid water cloud microphysics: particle size distribution retrieval, water and ice content.
  • Simulation of cloud and rain spectral polarimetric radar measurements at cm- and mm-wavelengths.
  • Horizontal and vertical wind estimation within precipitation and clouds.
  • Weather/cloud radar signal processing techniques.
  • CIE4608 Atmospheric Remote Sensing (course manager)
  • CIE4709: Remote Sensing for Environmental Monitoring (course manager)
  • CTB3366 Rainfall in the city (guest lecturer)
  • AESB1440-17 Methodology of Geophysics and Remote Sensing (guest lecturer)
  • AESM401B Climate and Weather (lecturer)
  • ENVM1800 Atmospheric Measurements and Modeling (lecturer)
  • ENVM1900 Grand Challenges in AEE (lecturer)
  • Ruisdael observatory of atmospheric science Management and 24/7 operation of 3 cloud radars, 3 microwave radiometers, 2 weather research radars in Cabauw, Delft and Lutjewad, and a cloud and precipitation profiling mobile station.
  • ACTRIS, The aerosol, clouds and trace gases research infrastructure,, remote sensing of clouds and atmospheric observation with cloud radars and microwave radiometers. Calibration techniques for cloud radars.
  • Oude Nijhuis A., C. Unal, O. Krasnov, H. Russchenberg, A. Yarovoy, 2019: Velocity based EDR retrieval techniques applied to Doppler radar measurements from rain: Two case studies. J. Atmos. Oceanic Technol. 36, 1693-1711.
  • Yin J., C. Unal, H. Russchenberg, 2019: Object-orientated filter design in spectral domain for polarimetric weather radar”. IEEE Trans. Geosci. Remote Sens., 57, 2725-2740.
  • Reinoso-Rondinel R., C. Unal, H. Russchenberg, 2018. “Adaptive and high-resolution estimation of specific differential phase for polarimetric X-band weather radars”. J. Atmos. Oceanic Technol. 35, 555-573.
  • Pfitzenmaier L., C. Unal, Y. Dufournet, H. Russchenberg, 2018: Observing ice particle growth along fall streaks in mixed-phase clouds using spectral polarimetric radar data”. Atmos. Meas. Tech., 18, 7843-7862. 
  • Unal, C., 2015: High-resolution raindrop size distribution retrieval based on the Doppler spectrum in the case of slant profiling radar. J. Atmos. Oceanic Technol., 32, 1191-1208, doi: 10.1175/JTECH-D-13-00225.1
  • Unal, C., 2009: Spectral polarimetric radar clutter suppression to enhance atmospheric echoes. J. Atmos. Oceanic Technol., 26, 1781-1797, doi: 10.1175/2009/JTECHA1170.1
  • Spek, A. L. J., C. M. H. Unal, D. N. Moisseev, H. W. J. Russchenberg, V. Chandrasekar, and Y. Dufournet, 2008: A new technique to categorize and retrieve the microphysical properties of ice particles above the melting layer using radar dual-polarization spectral analysis. J. Atmos. Oceanic Technol., 25, 482-497, doi: 10.1175/2007/JTECHA944
  • Unal, C. M. H., and D. N. Moisseev, 2004: Combined Doppler and polarimetric radar measurements: correction for spectrum aliasing and nonsimultaneous polarimetric measurements. J. Atmos. Oceanic Technol., 21, 443-456, doi:10.1175/1520-0426(2004)021<0443:CDAPRM>2.0.CO;2

More publications

Christine Unal

Researcher and lecturer

  • +31 15 27 86257
  • Faculty of Civil Engineering and Geosciences

    Building 23

    Stevinweg 1 / PO box 5048

    2628 CN Delft / 2600 GA Delft

    Room number: 2.18

    Availability: every day