Igor Stepanov

Oct 142013

Our 3rd year PhD student Igor Stepanov gave a talk at the Interdisciplinary Conference of Young Earth System Scientists, in Hamburg, Germany, 22-25th of September 2013. He presented his PhD project: Impact of drizzle on cloud lifetime, within the innovative session, “Pecha Kucha” talk, in which 20 slides is shown, 20 seconds each. This method has gained popularity worldwide to communicate concise information to a broad audience. See http://www.pechakucha.org/ for more examples of this entertaining and clear way of presenting.

The focus of the conference was on Understanding and Intepreting Uncertainties. Innovative, experimental methods of giving presentationg were introduced, such as 3 minute poster pitch, twin talk, non-linear presentation, Pecha Kucha and Touchless Wireless. This made following the talks incredibly fun, but also the presenters seem to have enjoyed themselves while trying to be punctual when, for example slides change automatically every 20 seconds, as in Pecha Kucha talk,

3 keynote talks were given by Eli Tziperman (Harvard, US), Richard Tol (University of Sussex, UK) and Joyeeta Gupta (University of Amsterdam, NL). They were heavily focused on details on how IPCC repots are produced and the fascinating 30 year history of how this repots came to be, by prof. Gupta.

A follow up conference of the ICYESS has been scheduled in a year from now in Bremen, Germany. Again the key participants will be young researchers, master and PhD students and PostDocs with attempts to break and improve the standards in conferences structure once again.

Jul 192013







The Gordon Research Seminar and Conference: Radiation and Climate took place at the Colby-Sawyer College in New London, NH, near Boston, 5-12th of July, 2013. It brought together the atmospheric modeling and observing community from all over the world. Our PhD student Igor Stepanov attended with a poster presentation titled: Cloud lifetime and feedback observations. Practical conference with a lot of dedicated time for discussions, which went into overtime during the meal hours as well, thanks to the kitchen chef skills that kept us asking for more.

Try to find our PhD student on the conference participants family picture near the right hand side in the 4th row from the bottom.

Jun 272013











On Wednesday we had an atmosphere observations day. Our colleagues from Met Office Iceland, Richard and Hermann, have demonstrated a mobile X-band unit, used during the expected volcanic eruptions in Iceland. Students have deployed the radar and launched a radiosonde from a mobile launcher. We visited our weather stations to collect the data and 2 out of 8 were knocked out due to strong wind.

Jun 252013




















Students have placed the 4 weather stations near lake Myvatn to study the atmospheric variability within this region. Locations are around a hill approximately 500m elevation and two around it near its base. One station is placed on the coast of a small lake next to this hill. The next part of the measurements is planned for Thursday by hiking up one of the higher hills with the sensors.

Jun 232013











14 MSc students from TU Delft and University of Reykjavik are together with our PhD students Lukas and Igor as instructors in Iceland, setting up atmospheric measurements, alongside geodetic measurements, during the next 2 weeks. They will use 8 identical Davis Vantage Pro2 weather stations to capture the spatial horizontal variability of meteorological parameters east of lake Myvatn. The area has many small hot lakes and very little change of the nature by humans, making it a challenge to reach strategically desired locations, that they will select. On Wednesday, our meteorological colleagues from Met Office Iceland will visit us for a radiosonde launch, with which the students will determine the cloud base height, and compare it with another 4 methods to do the same (ceilometer laser, stereo cloud cameras, tachymetry and the theoretical approach using the theoretical temperature lapse rate and ground measured dew point temperature) to see how they rank and which one is the most useful for specific purposes.

For the update of the measurements outside the atmospheric part, visit our sister blog here: https://grsiceland.weblog.tudelft.nl

Jul 252012

Next week (30.07-03.08), ATMOS group will be attending the 16th International Conference on Clouds and Precipitation in Leipzig, Germany (ICCP2012)! We are presenting two posters on Monday and Wednesday within the sessions of: Basic cloud and precipitation physics and Convective clouds (including cloud electrification), by our researchers Igor Stepanov and Yann Dufournet.

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Apart from the our scientific focus, we are eager to get acquainted with all of the ongoing clouds and precipitation related research! See you there!

Mar 132012


ePort – an interactive and user friendly layout of ground based and space borne atmospheric observations has found its way to the public. EUMeTrain project has made a large data quantity and weather analysis for Europe available online, updated every 6 hours. ePort is a product of EUMeTrain which is developed to allow you to combine a range of EUMETSAT satellite images with satellite derived
products and numerical model fields.

Project overview link –>  http://eumetrain.org/eport.html

Go to last updated measurements now!

The principle goal of EUMeTrain is to provide users of EUMETSAT satellite data and products that will assist them to make more effective use of it, either as stand-alone material or in combination with other meteorological data sources. This is done by allowing the user to select the variable of interest and plot it for the selected domain/location with a single mouse click. It can be infra-red/visible channel of Meteosat Second Generations satellite, extreme weather warnings (ESTOFEX), 10 meter height wind speeds, CAPE (Convective Available Potential Energy), sounding data, vertical cross sections cloud cover, etc.

The project team consists of the national meteorological services of Austria (ZAMG), Croatia (DHMZ), Finland (FMI), Germany (DWD) and
Portugal (IM).

Mar 022012

An innovative Satellite Report format for synoptic/regional weather analysis, as observed using Meteosat Second Generation satellite imagers, has been introduced and hosted by the KNMI web site. Observed cloud pattens are explained and correlated to the regional scale atmosphere dynamics, such as: front positioning, jet streams, types of precipitation, cloud types identification, etc.

Link: —> http://www.knmi.nl/satrep/latest.htm

Initially started at the Austrian Meteorological Institute (ZAMG), SatRep project further developed with the co-operation of the European Meteorological Satellite Organisation EUMETSAT, the Netherlands Meteorological Institute (KNMI) and the Finnish Meteorological Institute (FMI).

SatRep can be used for nowcasting (weather forecasting in the coming 3-4 hours), and as an additional source of current/archive weather situation for the end user, compared to typical amount of information one can extract provided satellite images alone.