From 2 to 4th February 2010 the
EUMETSAT sponsored training project
EUMeTrain organises an event week on the topic of Snow.
This event week consists of several online sessions
dealing with the forecasting, nowcasting and monitoring of Snow with the use of geostationary and polar orbiting satellites and radar.
Guest speakers are Niilo Siljamo, Steinar Eastwood, Hannes Rieder, Jouni Pulliainen, Elena Saltikoff and Panu Lahtinen. These speakers will give 30 minute expert sessions on new developments in the field of nowcasting snow and presentations on practical session on how snow is now/forecasted and monitored in an NMS in Europe with various data sources.
Registration for this event week is closed! When you have registered you will automatically receive the required invitation. For those of you that will miss this event, all the sessions will be recorded for download. Session 1 and 2 can already be downloaded.
Session 1:
Izolda Marcinoniene will present a case study. According to Lithuanian criteria for meteorological phenomena it was a local-scale catastrophic event that affected the city of Nida, located on Baltic coast. Based upon the physical parameters of the atmosphere and the satellite information obtained, the situation was typical for Comma cloud. The main features and reasons for development of this catastrophic heavy snow event will be presented using detailed information such as vertical cross-sections, tephigrams and various satellite images.
The second talk will be presented by Natasa Strelec Mahovic from the Croatian Meteorological Service (DHMZ). DHMZ will give a presentation on the forecast and analysis of heavy snowfall in Croatia in February 2009, when snow was recorded even on the remote islands in Southern Croatia!
Recording (70 mb) | PDF (10 mb)
Session 2:
Niilo Siljamo (FMI, Finland) will introduce the snow cover product (SC) based on MSG/SEVIRI. He will describe the main parts of the algorithm with attention to various cases of snow cover.
In the second part, Nuno Moreira (IM, Portugal) will talk about snow products derived from MSG during the unusual snow events that have occurred in Portugal between November 2008 and February 2009.
Recording (38 mb) | PDF (10 mb)
Session 3:
Jouni Pulliainen from FMI will present research results and snow products for climate research purposes. Another speaker from FMI, Panu Lahtinen, will give a short overview of the four snow products being developed in the Eumetsat Satellite application facility on water management and hydrology (H-SAF). The ongoing developments on these products are discussed, and the future goals are shown. Also, some validation results will be shown.
Recording (24 mb) | PDF (6 mb)
Session 4:
Steinar Eastwood will present the operational Sea Ice products from the Ocean and Sea Ice Satellite Application Facility, both scientific and technical. Ongoing activities to improve the current products and develop new will be discussed and some examples of how the products are used will be shown. The presentation will be followed by Hannes Rieder from ZAMG, Austria who will provide a presentation on the interesting forecasting challenges associated with avalanches in Styria.
Recording Steinar Eastwood | Recording Hannes Rieder | PDF (11 mb)
Session 5:
In the first part of session 5 Elena Saltikoff (FMI) will talk about diagnosis techniques of snow with radar data more from a theoretical point of view. This talk will include the relevant parameters of the radar equation (dielectricity and diameter), cross sections and reflectivity profiles with bright band and dBZ-gradients. It as aso discussed, how different fallspeeds of drops and snowflakes affect the dBZ values. Some applications of polarimetric radar will be considered at the end of this talk. During the second part of this session Wilfried Jacobs (DWD) will discuss practical examples for diagnosis of precipitation types from radar data and will relate this kind of data to other data categories like radiosoundings, NWP and observations.
Recording (24 mb) | PDF (6 mb)
