''2004-2007'' <nowiki>PhD</nowiki> at the Meteorological Institute (University of Munich), the Meteorological Institute (University of Bonn) and the Institute for Geophysics and Meteorology at University of Cologne\n\n''2002-2006'' Employment at Meteorological Institute (University of Munich) as a research scientist.\n\n''2002'' Diploma thesis: Modellierung von <nowiki>UV-Strahlung</nowiki> auf Empfänger unterschiedlicher Orientierung\n\n''1996-2002'' Student of Meteorology at the University of Munich\n
<<tabs tabsClass [[Computing@RRZ]] "Computing@RRZ" [[Computing@RRZ]]>>
!!!Computing on Linux-Cluster at the ZAIK/RRZK with 256 processors\n\n''generell''\n*all information can be found on the corresponding [[rrz page on cliot|http://www.uni-koeln.de/rrzk/server/clio/]]\n*the rrz-account needs to be activated, so it is allowed to compute on ~Linux-Cluster.\n*the login machine is cliot.rrz.uni-koeln.de\n*to transfer files between the meteo network and the rrz, it is much faster to use the dialog machine; the panfs files system can be found under: /panfs/panasas-rzkj-1.rrz.uni-koeln.de/home.//user//\n\n''directories''\n*the file system is stored on panfs which is not the same as afs.\n*on the panfs-home directories a passwordless login via ssh is possible.\n*on the afs-homedirectory structure this is not so easy due to the token system.\n*the afs-home can be included via link, but access is only possible by receiving a token with klog.\n*temporary files should be stored on /scratch which will be deleted if the data is 30 days not accessed\n\n''compiling programs''\n*there various compilers installed. For fortran pathf90 under /opt/rrzk/path/ is suggested.\n*the use of the -o option for optimization is suggested.\n\n''batch system - SGE''\n*the batch system is the [[SunGridEngine|http://gridengine.sunsource.net]].\n*example scripts for executing jobs can be found under: /opt/rrzk/sge\n*single-processor jobs go to the single parallel environments indicated by "-pe single" or "-pe single4G" for jobs requiring large memory\n*the duration of the job is set via -l h_rt=HH:MM:SS, where HH:MM:SS stands for hours, minutes, seconds, respectively\n*it is a good idea to overestimate the time since the job is aborded after expiration of the time\n*testing jobs is done in the "-pe devel" queue\n*in case of a large amount of similar jobs it is craftily to submit the jobs as a job array by defining an optional parameter -t n-m:s where n is the first, the last job id and s the step between consecutive jobs (see [[batch script|array_run.sh]] and [[real job|t_array.1]] for examples and [[script behind|run_scripts_array.pl]] for the real job)
DiveInto
!!!First shot on my ~DissStyle\n\n|[img[ |diss_style/CIMG3816_s.jpg]]|[img[ |diss_style/CIMG3817_s.jpg]]|[img[ |diss_style/CIMG3819_s.jpg]]|[img[ |diss_style/CIMG3820_s.jpg]]|\n|[img[ |diss_style/CIMG3821_s.jpg]]|[img[ |diss_style/CIMG3825_s.jpg]]|[img[ |diss_style/CIMG3826_s.jpg]]|[img[ |diss_style/CIMG3827_s.jpg]]|\n|[img[ |diss_style/CIMG3828_s.jpg]]|[img[ |diss_style/CIMG3829_s.jpg]]|\n
This will be the main Tiddler for information about this site.\n\n[img[visited countries|worldmap.gif]]\n[[create your own visited countries map|http://douweosinga.com/projects/visitedcountries]]\n or [[vertaling Duits Nederlands|http://www.tonjafabritz.com]]\n
!!!General Observation Period\nThe main goal of the General Observation Period ([[GOP|http://gop.meteo.uni-koeln.de]]) within the Priority Programm on Quantitative Precipitation Forecasting is to gather a comprehensive data set suitable for testing hypotheses and new modeling techniques developed within PQP.
!!!handy tools for meteorologists\nThis is a first collection for a course on 'tools a meteorlogist should know'.\n\n''proposed lectures''\n\n*Linux introduction\n*~LaTeX\n*perl\n*gnuplot\n*Matlab\n*Bash programming\n*Dive into editors\n
!!!Institutsausflug Canoeing auf der Sieg and Happy BBQ 11.7.2007\n\n|[img[ |CIMG3557.JPG]]|[img[ |CIMG3558.JPG]]|[img[ |CIMG3559.JPG]]|\n|[img[ |CIMG3560.JPG]]|[img[ |CIMG3561.JPG]]|[img[ |CIMG3562.JPG]]|\n|[img[ |CIMG3563.JPG]]|[img[ |CIMG3564.JPG]]|[img[ |CIMG3565.JPG]]|\n|[img[ |CIMG3566.JPG]]|[img[ |CIMG3567.JPG]]|[img[ |CIMG3568.JPG]]|\n|[img[ |CIMG3569.JPG]]|[img[ |CIMG3570.JPG]]|[img[ |CIMG3571.JPG]]|\n|[img[ |CIMG3572.JPG]]|[img[ |CIMG3573.JPG]]|[img[ |CIMG3574.JPG]]|\n|[img[ |CIMG3575.JPG]]|[img[ |CIMG3576.JPG]]|[img[ |CIMG3577.JPG]]|\n|[img[ |CIMG3578.JPG]]|[img[ |CIMG3579.JPG]]|[img[ |CIMG3580.JPG]]|\n|[img[ |CIMG3581.JPG]]|[img[ |CIMG3582.JPG]]|[img[ |CIMG3583.JPG]]|\n|[img[ |CIMG3584.JPG]]|[img[ |CIMG3585.JPG]]|[img[ |CIMG3586.JPG]]|\n|[img[ |CIMG3587.JPG]]|[img[ |CIMG3588.JPG]]|[img[ |CIMG3589.JPG]]|\n|[img[ |CIMG3590.JPG]]|[img[ |CIMG3591.JPG]]|[img[ |CIMG3592.JPG]]|\n|[img[ |CIMG3593.JPG]]|[img[ |CIMG3594.JPG]]|[img[ |CIMG3595.JPG]]|\n|[img[ |CIMG3596.JPG]]|[img[ |CIMG3597.JPG]]|[img[ |CIMG3598.JPG]]|\n|[img[ |CIMG3599.JPG]]|[img[ |CIMG3600.JPG]]|[img[ |CIMG3601.JPG]]|\n|[img[ |CIMG3602.JPG]]|[img[ |CIMG3603.JPG]]|[img[ |CIMG3604.JPG]]|\n|[img[ |CIMG3605.JPG]]|[img[ |CIMG3606.JPG]]|[img[ |CIMG3607.JPG]]|\n|[img[ |CIMG3608.JPG]]|[img[ |CIMG3609.JPG]]|[img[ |CIMG3610.JPG]]|\n|[img[ |CIMG3611.JPG]]|[img[ |CIMG3612.JPG]]|[img[ |CIMG3613.JPG]]|\n|[img[ |CIMG3614.JPG]]|[img[ |CIMG3615.JPG]]|[img[ |CIMG3616.JPG]]|\n|[img[ |CIMG3617.JPG]]|[img[ |CIMG3618.JPG]]|[img[ |CIMG3619.JPG]]|\n|[img[ |CIMG3620.JPG]]|[img[ |CIMG3621.JPG]]|[img[ |CIMG3622.JPG]]|\n|[img[ |CIMG3623.JPG]]|[img[ |CIMG3624.JPG]]|[img[ |CIMG3625.JPG]]|\n|[img[ |CIMG3626.JPG]]|[img[ |CIMG3627.JPG]]|[img[ |CIMG3628.JPG]]|\n|[img[ |CIMG3629.JPG]]|[img[ |CIMG3630.JPG]]|[img[ |CIMG3631.JPG]]|\n|[img[ |CIMG3632.JPG]]|[img[ |CIMG3633.JPG]]|[img[ |CIMG3634.JPG]]|\n|[img[ |CIMG3635.JPG]]|\n
!!!!Journals\n\nMech, M., Crewell, S., <nowiki>Meirold-Mautner</nowiki>, I., Prigent, C., and Chaboureau, J.-P. (2007).\nInformation content of millimeter observations for hydrometeor properties in mid-latitudes. IEEE Trans. Geosci. Remote Sensing, 45, 2287-2299.\n\n<nowiki>Meirold-Mautner</nowiki>, I., Prigent, C., Pardo, J. R., Chaboureau, J.-P., Pinty, J.-P., Mech, M., and Crewell, S. (2007).\nRadiative transfer simulations using mesoscale cloud model outputs and comparisons with passive microwave and infrared satellite observations for mid-latitude situations. J. Atmos. Sci., 64,1550-1568.\n\nChaboureau, J.-P., Pinty, J.-P., <nowiki>Meirold-Mautner</nowiki>, I., Prigent, C., Mech, M., and Crewell, S. (2007).\nA midlatitude cloud database validated with satellite observation. J. Atmos. Sci., accepted.\n\nKöpke, P., and Mech, M. (2006).\nOrientierungsabhängige UV&ndash;Bestrahlung des menschlichen Körpers. Ozonbulletin des Deutschen Wetterdienstes, Nr. 111.\n\nSreerekha, T. R., Emde, C., Teichmann, C., Bühler, S., Löhnert, U., Mech, M., Crewell, S., Battaglia, A., Eriksson, P., Rydberg, B., Davis, C., Jiménez, C., English, S., and Doherty, A. (2005).\nDevelopment of a RT model for frequencies between 200 and 1000 <nowiki>GHz</nowiki>. ESTEC contract No. 17632/03/NL/FF, final report.\n\nCrewell, S., Mech, M., Prigent, C., <nowiki>Meirold-Mautner</nowiki>, I., Chaboureau, J.-P., Pinty, J.-P., Schulz, J., Czekala, H., Feist, D., and Löhnert, U. (2005).\nSimulation study of precipitating clouds from geostationary orbits with passive microwaves. EUMETSAT contract No. EUM/CO/04/1311/KJG, final report.\n\nKöpke, P., and Mech, M. (2005).\nUV radiation on arbitrarily oriented surfaces: Variation with atmospheric and ground properties. Theor. Appl. Climatol., 81:25-32\n\nMech, M., and Köpke, P. (2004).\nModel for UV irradiance on arbitrarily oriented surfaces. Theor. Appl. Climatol., 77:151-158\n\nEgger, J., Bajrachaya, S., Heinrich, R., Kolb, P., Lämmlein, S., Mech, M., Reuder, J., Schäper, W., Shakya, P., Schween, J., and Wendt, H. (2002).\nDiurnal winds in the Himalayan Kali Gandaki Valley. Part III: Remotely piloted aircraft soundings. Mon. Wea. Rev., 130:2042-2058
DiveInto\nPictureCollection\n[[Work]]\n[[Computing]]\n[[Teaching]]\nPhD\nDissStyle\n[[Publications]]\n[[CV]]\n\n
The investigation performed in my PhD are related to the radiative tranfer in the mm- and submm wavelength region, respectively the frequency range between 50 and 500 GHz. In detail I'm interested in the potential of this frequency range for teh observation of precipitation and hydrometeors in general from geostationary orbits with passive sensors.\n\nAs soon as I have something presentable, I will present it.\n\n
<<tabs tabsClass [[Institutsausflug]] "Institutsausflug auf der Sieg" [[Institutsausflug]]>>
!!!!Posters\n\nInformation content of millimeter- and submillimeter-wave observations for hydrometeor properties in mid-latitudes.\nGordon Research Conference "Radiation and Climate", New London, New Hampshire, USA, 29 July - 3 August 2007.\n\nSimulation study of precipitating clouds from geostationary orbits with passive microwaves.\nGordon Research Conference "Radiation and Climate", Waterville, Maine, USA, 23-27 July 2005.
<<tabs tabsClass [[Journals]] "" [[Journals]][[Posters]] "" [[Posters]][[Talks]] "" [[Talks]]>>
!!!Simulation study of precipitating clouds from geostationary orbits with passive microwaves\n\nIn this study the use of millimeter- and submillimeters-waves for the observation of precipitation from geostationary orbits for Meteosat Third Generation (MTG) has been investigated. This has been done by coupling the output of the French cloudresolving mesoscale model M&eacute;so-NH to the radiative transfer model for the microwave range MWMOD. With this model framework a large set of brightness temperatures at different microwave frequencies with corresponding hydrometeor profiles has been created. In a final step the potential of these frequencies to observe precipitation or hydrometeor properties has been investigated with simple statistical retrieval algorithms.
\n!!!Scattering data base for Radiative Transfer Calculations\nThis is a scattering database for the mm and submm wavelength region developed in a ESA funded project. In the current state the scattering properties are calculated by the Discr ete Dipole Approximation (DDA) method developed by Draine and Flatau. The database consists of various frozen hydrometeor approximations each stored in a seperate table. The freq uency range correspond to the frequencies used by AMSU A/B, CIWSIR, <nowiki>CoSSIR</nowiki>, EGPM, MIR, and <nowiki>ORA-MIS</nowiki> ranging from 23 to 875 <nowiki>GHz</nowiki>.\n\n''Randomly Orientated Hexagons''\n The randomly orientated hexagons have an equivalent radii range from 28.851 to 235.185 microns. The aspect ratios for these these prolate particles are between 0.16923 and 0. 733333.\n''Randomly Orientated Plates''\n The randomly orientated plates data represente equivalent radii in the range from 11.875 to 254.181 microns. These correspond to aspect ratios between 3.3333 and 27.6596.\n''Randomly Orientated Snow flakes''\n The size of the snow flakes in the data base correspond to equivalent radii form 54.923 to 404.363 microns. The explicit shape and the resolution of the particles will be dis played in a separate window. \n\n
Mario Mech's Home
!!!Synthetic satellite simulator for microwave frequencies.\n\nFirst simulations with Lokal Modell Kürzestfrist (LMK) of DWD and ~MicroWaveModel (MWMOD) at some ~AMSU-B frequencies + 428.76 ~GHz. In the second column retrieval results based on retrieval coefficients achieved from the ~MesoNH-SynSatMic database. \n\n|[img[ |lmk_elb_120806_089.00.png]]|[img[ |lmk_elb_120806_150.00.png]]|\n|[img[ |lmk_elb_120806_176.31.png]]|[img[ |lmk_elb_120806_428.76.png]]|\n|[img[ |lmk_elb_120806_gwp.png]]|[img[ |retrieved_graupel.png]]|\n|[img[ |lmk_elb_120806_swp.png]]|[img[ |retrieved_snow.png]]|\n|[img[ |lmk_elb_120806_cwp.png]]|[img[ |retrieved_cloud.png]]|\n|[img[ |lmk_elb_120806_iwp.png]]|[img[ |retrieved_ice.png]]|\n|[img[ |lmk_elb_120806_rain.png]]|[img[ |retrieved_rain.png]]|\n|[img[ |lmk_elb_120806_r_rate.png]]|[img[ |retrieved_rain_rate.png]]|\n
!!!!Talks\n\nThe Potential of Observing Precipitating Clouds from Geostationary Orbits with Passive Microwaves. \nTalk at the 2006 IEEE International Geoscience And Remote Sensing Symposium & 27th Canadian Symposium on Remote Sensing, Denver, United States of Amerika, 1st August 2006.\n\nThe use of microwave radiometers in experimental campaigns for atmospheric research. \nand\nSimulation study of precipitating clouds from geostationary orbits with passive microwaves. \nSeminar talk at the Bureau of Meteorology, Melbourne, Australia, 6th March 2006.\n\nSimulation study of precipitating clouds from geostationary orbits with passive microwaves.\n<nowiki>IGeoLab</nowiki> meeting, Roma, Italy, 25th October 2005.
<<tabs tabsClass [[HandyTools]] "handy tools for meteorologists" [[HandyTools]]>>
<<tabs tabsClass [[GOP]] "General Observation Period" [[GOP]][[SIMGEO]] "Simulation study of precipitating clouds from geostationary orbits with passive microwaves" [[SIMGEO]][[SSD]] "Single Scattering Database" [[SSD]][[SynSatMic]] SynSatMic [[SynSatMic]]>>