Technical Reports


  • WATCH Technical Report Number 9: Estimation of Land Surface Temperature using AVHRR sensors on the NOAA satellite The theoretical basis for the land surface temperature (LST) and land surface emissivity (LSE) retrieval from the Advanced Very High Resolution Radiometer (AVHRR) is given, using split-window techniques. The algorithms proposed use calibrated reflectances and brightness temperatures from the AVHRR channels 1, 2, 4, 5 as well as NDVI images to produce a global LST. The algorithms can be used globally as they have been simulated from a worldwide emissivity and brightness temperature data base. The cloud tests applied to the LST data are also provided. This document describes the mathematical basis for the algorithms, the ancillary data-sets required and the validation strategy.
    WATCH, J. A. Sobrino, Y. Julien, V. Hidalgo, J.C. Jimenez, G. Soria, C. Mattar, B. Franch, R. Oltra, J. Cuenca, December 10, 2008

  • Watch Technical Report Number 8: International Summer School on Hydrological Drought and Global Change Objectives, procedure of the selection of candidates and the programme of the International Summer School on Hydrological Drought and Global Change (Trieste, Italy, 22-27 June 2008) are summarized. The report has a comprehensive set of annexes (e.g. flyer, application form, list of lecturers, list of participants, detailed programme of summer school and handouts for parallel workshops, title of contributions from participants, questionnaire, certificate) which might be useful for following courses. The evaluation of the summer school, which is based upon an extended questionnaire (86% response), covers the major part of the report. The vast majority of the participants was very happy with the summer school. About 90% of the students classified it as good to excellent.
    Henny A.J. van Lanen, Lena M. Tallaksen, Claudio Piani & Pandora Pieri, October 28, 2008

  • WATCH Technical Report Number 7: Analysis of existing climate model results over Europe This Technical Report is not yet publically available, contact author for copy.
    Stefan Hagemann (MPI-M), Peter Berg (DMI), Jens H. Christensen (DMI), Jan Härter (MPI-M), September 11, 2008

  • WATCH Technical Report Number 6: Practical methodologies to correct biases in climate model output, and to quantify and handle resulting uncertainties in estimates of future components of the global water cycle This report presents the methodologies to correct biases in climate model output, and to quantify and handle resulting uncertainties in estimates of future components of the global water cycle.
    Claudio Piani (ICTP), Jan Härter (MPI-M), Stefan Hagemann (MPI-M), Myles Allen (UOXF), Sue Rosier (UOXF), September 10, 2008

  • WATCH Technical Report Number 5: Definition of socioeconomic scenarios for land surface hydrology simulations of the 21st century This deliverable reports on discussions and progress made to define scenarios for the 21st century that reflect regional and global changes in socio-economic conditions, which shall be used to prescribe temporal, and spatially distributed, boundary conditions for the later global and regional hydrological sensitivity simulations.
    Dieter Gerten (PIK), Ingjerd Haddeland (WUR), Stefan Hagemann (MPI-M), Fulco Ludwig (WUR), David Wiberg (IIASA), August 20, 2008