Identify cloud types and their characteristics
Presentation during the event week on Fog and Low Clouds in January 2009.
Ljubljana airport is located in the basin, surrounded by high mountains with peaks over 2500 m. The formation of radiation fog at the airport is therefore very common, especially in the wintertime. This greatly impacts the safety and effectiveness of aviation traffic.
The method used in Slovenia is based on statistical methods of interpreting observations and numerical weather prediction models output. In two methods, discriminant analysis and decision trees, they use three types of predictors - observations, MOS and PPM. They do not use the results directly but rather as a guide for the real forecast.
Presentation during the event week on Fog and Low Clouds in January 2009.
Wilfried Jacobs (DWD) will talk about COST-722. A project in which 14 countries worked together from November 2001 to May 2007. After an inventory phase about the requirments of customers and forecasters a research and development phase followed during which advanced methods of very short range forecasts of fog, visibility and low clouds were developed. In this presentation an overview about activities and the most important results will be given.
Presentation during the event week on Fog and Low Clouds in January 2009.
Andreas Frank, a forecaster from ZAMG, will give a presentation on the forecast experience of fog at the Austrian Weather Institute. A good description of the different input data is presented and how these add up to make a forecast.
Presentation during the event week on Fog and Low Clouds in January 2009.
Andreas Wirth (ZAMG) will start the event week with a presentation about fog and low stratus detection from SEVIRI and AVHRR images. The presentation will deal with fog detection during night-time and day-time conditions. A recipe for daytime low cloud detection using several SEVIRI channels will be presented. A rough comparison between different low cloud detection products is planned.
Presentation during the event week on Convection in June 2009.
Luiz Machado will talk about the use of SEVIRI satellite on the nowcasting of convection in Brazil and Africa.
After this presentation it is back to Europe with a presentation by Maria Putsay from Hungary on the use of MSG SEVIRI data to nowcast convection at her institute. She will speak on the benefit of Meteosat-8 Rapid Scan data.
Presentation during the event week on Convection in June 2008.
Guy Kelman (Hebrew University of Jerusalem) explained the relationship between cloud top temperature and effective radius and emphasised the advantage this can have on the lead time and the possibility to nowcast areas with a high potential of severe convection. The session was followed by Wilfried Jacobs (DWD) on the Automatic weather and product monitoring (Automon).
This case study presents an analysis of radiation fog event over the Pannonian Basin that took place from 18th to 20th November, 2011.
This case study presents an analysis of radiation in a fog event over the Pannonian Basin that took place from 18th to 20th November, 2011. It is an example of the conceptual model of fog and stratus cloudiness. Special attention is dedicated to the analysis of vertical atmospheric profiles (temperature, humidity and wind) combined with satellite observation.
Sandwich products help to detect and analyse various cloud top features of storms (storm systems) in their mature phase.
This training module describes the Sandwich Products. These products help to detect and analyse various cloud top features of storms (storm systems) in their mature phase. It eases the detection of specific cloud-top features related to storm dynamics and microphysics, structure, and possible storm severity - such as overshooting tops, cold-U/V (enhanced-V) or cold-ring features, embedded warm spots/areas, gravity waves, above-anvil ice plumes, areas composed of very small ice particles, etc. These products directly support monitoring and nowcasting of convective storms. In areas with no, or poor, weather radar and surface observation coverage, this product is essential for proper storm detection.
Dan Bikos from CIRA shows how to interpret satellite data in view of convective initiation and how to estimate the severity of MCS from cloud features.
Length: 55 min
Author: Dan Bikos
Dan Bikos received his BS in Meteorology at the State University of New York College at Brockport (1995), and MS in Meteorology from the University of Oklahoma (1998). His areas of interest include severe weather, lake-effect snow and applications of satellite imagery to weather forecasting, particularly on the mesoscale. Dan has been a research associate at CIRA since 1998 working for the Virtual Institute for Satellite Integration Training (VISIT) project in which he develops training for NWS forecasters. Distance learning software (VISITview) combined with a conference call are utilized to deliver the training to NWS forecast offices. Dan has instructed more than 300 hours of live teletraining sessions, primarily dealing with operational applications of satellite imagery.
Lee-Ann Simpson and Jannie Stander from the South-African Weather Service started the first session of the WWW-Briefing. Lee-Ann gave a weather briefing for the South-African region and Jannie introduced the conceptual models of cold fronts and cut-off lows as they appear on the southern hemisphere.
Length: 50 min
Author: Lee-Ann Simpson, Jannie Stander
Lee-Ann Simpson is currently working as a meteorological trainer in the Regional Training Center (RTC) in Pretoria. She worked as an operational forecaster from 2003-2008, after which she started in the training department. She presently lectures to Post graduate forecasting students, focusing on specialized weather forecasting and satellite meteorology. Through the University of Pretoria, she lectures satellite meteorology and Tropical meteorology to honours students. Her interests lie in short term forecasting, severe weather and all satellite based interpretation of weather phenomena. She has a BSc (Hon) in Meteorology from the University of Pretoria and she is currently completing her MSc through the same institution.
Jannie Stander has worked as an operational weather forecaster from 1998 to 2005. Since 2006 Jannie has been working in the Regional Training Centre at Pretoria providing marine (2006-2008) and aviation forecaster training (2008-current). His main interests are aviation meteorology, synoptic meteorology and satellite interpretation and he is involved with several international working groups within these disciplines. He holds a BSc Hons degree in Meteorology at the University of Pretoria and is currently completing his MSc at the same University.
Ok Hee Kim holds the weather briefing for the South Korean region. Her topics are: Asian Dust, Typhoons and typical weather phenomena in East Asia.
Length: 50 min
Author: Ok Hee Kim
Ok Hee received her BSc in Astronomy at the Chungbuk National University at Chungchungbukdo the province of South Korea (1992), and MSc in Meteorology from the Seoul National University in Seoul South Korea (2004). She is preparing for the PhD. Her areas of interest include severe weather, lake-effect snow, Asian dust, fog and applications of satellite imagery to weather forecasting, particularly on the mesoscale. She worked at weather forecasting division as assistant for weather forecaster for 3 years from 1992 and satellite image analyst 3 years from 1996. She has been a research associate at NMSC (National Meteorological Satellite Center) KMA (Korea Meteorological Administration) since 2006. She is currently working as a meteorological satellite image trainer and analyzer of COMS (Communication Ocean Meteorological Satellite) image for KMA's weather forecaster in NMSC. Presently, she is trying to develop Conceptual Models which are applicated in East Asia after training SATREP in ZAMG.
Vesa Nietosvaara and Larisa Nikitina give a weather briefing for the European region, Larisa focusses on the preparations for the 2014 Olympic Games in Sochi.
Length: 55 min
Author: Vesa Nietosvaara, Larisa Nikitina
Vesa Nietosvaara has worked as an operational weather forecaster for twenty years in 1988-2008. Since 1998 Vesa has been working within several training projects and created learning resources for operational meteorologists. Particularly, he is interested in satellite image interpretation and conceptual models for weather diagnosis. Most of his career Vesa has done at the Finnish Meteorological Institute, but since 2012 he works as a Training Officer at EUMETSAT. He assists the EUMeTrain monthly weather briefing team and regularly participates or lead the European online weather briefings (ePort weather briefings).
Larisa (Lara) Nikitina has been working as aviation weather forecaster in Rostov aviation center (Rostov-on-Don, south Russia) since 1985 after training as a weather forecaster in Russian State Hydrometeorological University (RSHU). And since 2010 she became the weather forecaster for Sochi 2014 Winter Olympics. Her special interests are the satellite meteorology applications for nowcasting and distance learning.