Weather
Presentation during the event week on Snow in January 2010.
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.
Presentation during the event week on Warning in October 2010.
Presentation by Tanja Renko (DHMZ) who describes the warning system that was active in Croatia before joining the Meteoalarm. Then the decision process in giving a warning for Meteoalarm and the local authorities will be described using an example of a real warning case.
Presentation during the event week on Warning in October 2010.
Presentation by Michael Staudinger talks about the EMMA project and the meteoalarm website that integrates all important severe weather information originating from the official National Public Weather Services across a large number of European countries. The warning information is presented consistently to ensure coherent interpretation as widely as possible throughout Europe.
Presentation during the event week on Warning in October 2010.
Rob Groenland will look into more detail in the July 14th case of 2010. He will describe the meteorological part on the synoptic- and mesoscale. Furthermore he pays attention to the decision making process that finally lead to the issuing of a regional weather alarm for parts of the Netherlands that evening. Not only beforehand it is important the follow the procedures carefully but also in the aftermath it is essential to collect all the feedback and communication that took place between the expert- and weatheralarmteam but also from customers, end users and general public. Finally he shows you the results of an extensive KNMI damage survey that took place in the area of the most severe damage.
Presentation during the event week on Warning in October 2010.
KNMI takes great interest in collaborative decision making within the process towards issuing severe weather warnings. Collaborative decision making will equalize individual peak reactions by forecasters, it will also decrease the stress often felt by shift meteorologists in the onset phase towards a severe weather event. For this reason KNMI has implemented several consulting procedures within its new warning system.
During the first part of this presentation Frank Kroonenberg will tell you about setting objective warning threshold, the warning colour assignment system and will give more details on the decision making process that leads to a warning for extreme weather or even a weather alarm the highest state of warnings in the Netherlands.
Presentation during the event week on Warning in October 2010.
Finnish warnings are issued on 24/7 routines via radio, television and www. Warnings are provided for general public, authorities and commercial clients. Warnings are issued for the next 24 hours in advance, but in future outlooks for some days in advance will be issued in near future. In weather situations where it is estimated that weather will be hazardous an extra forecaster monitors the situation and makes situation awareness reports for authorities. Also authority bulletins for general public are possible in severe weather situations.
Presentation during the event week on Warning in October 2010.
Rainfall warnings have not been issued in Finland until 2009. In the earlier years heavy rain forecasting was considered to be a too challenging task. However, growing demand for warnings together with some advancements in forecasts have changed this. Nowadays FMI provides warnings for the general public, authorities and commercial clients. In this presentation FMI's heavy rain warnings are presented and discussed.
Presentation during the event week on Warning in October 2010.
Instead of fixed warning thresholds, ZAMG has introduced the principle of annualities for their warning parameters. This decision was also chosen because most European NMSs also do it like this way. A yellow warning means that a situation exists only 17 times per year, which is an event which should be cautiously observed, but for which experience exists; an orange warning describes a situation which is only 3 times per year observed, therefore increased alert is necessary; a red warnng is an event which appears only 1 to 3 times per years and is therefore an extreme event.
Presentation during the event week on Warning in October 2010.
Presentation developed by Guido Wolz, Rolf Ullrich, Bernhard Reichert and Wilfried Jacobs on the warning system at Deutscher Wetterdienst (DWD). The issue of weather warnings by DWD is a task according to law. Especially if weather situations can cause danger for persons and material.
The warning management is split in 3 parts: Early warning in which information as possibility (very likely, likely possible) of significant weather situations on a national scale (250-700 km) from 2 day to one week. Pre-warnings in which severe weather situations on a regional scale (50-250 km) from 1 to 2 days is expected. Finally, rural district warnings where concrete warnings are issued for one or more rural district with a preliminary lead time; if necessary with differentiation of height levels.
Recorded powerpoint explaining what conceptual models and why we use them throughout.
A ten minute recorded powerpoint including audio and explaining you on what conceptual models are and why we use them in many of the training resources of EUMeTrain. The powerpoint also shows examples from Sat Manu and provides you the basis to go to satreponline.org and learn this technique in more details.
Presentation during the event week on Fog and Low Clouds in January 2009.
Vesa Nietosvaara presents fog forecasting process at FMI Aviation forecasting office.
Presentation during the event week on Fog and Low Clouds in January 2009.
Anna Eronn from the Swedish Hydrological and Meteorological Institute will talk about cold event Fog.
The most common way to detect fog and low clouds at night is by using of the brightness temperature difference between IR10.8 and IR3.9. Unfortunately this method does not work in very cold winter situations because the IR3.9 channel is very noisy for cold scenes. Therefore it is recommended to replace the IR3.9 with the IR8.7 channel which is significantly less noisy for cold scenes. The theory behind this and practical examples will be presented.