Weather
Identify clouds made of water droplets, ice particles or a mixture and discriminate between clouds with small or large cloud particles.
In this part of the course you will not only learn more about the identification of clouds such as Stratus, Cumulus and Cirrus from satellite images, and you will also discover various methods to derive cloud height information. Microphysical properties of clouds like cloud phase and cloud particle size are also addressed.
To access the resource click here.
Note: all resources are provided as an external link which redirects you to https://eumetcal.eu where you will need to create a user account in order to gain access to the course
Deduce cloud top heights based on brightness temperatures, surface observations and sounding data.
In this part of the course you will not only learn more about the identification of clouds such as Stratus, Cumulus and Cirrus from satellite images, and you will also discover various methods to derive cloud height information. Microphysical properties of clouds like cloud phase and cloud particle size are also addressed.
To access the resource click here.
Note: all resources are provided as an external link which redirects you to https://eumetcal.eu where you will need to create a user account in order to gain access to the course
Identify contrails and ship trails.
In this part of the course you will not only learn more about the identification of clouds such as Stratus, Cumulus and Cirrus from satellite images, and you will also discover various methods to derive cloud height information. Microphysical properties of clouds like cloud phase and cloud particle size are also addressed.
To access the resource click here.
Note: all resources are provided as an external link which redirects you to https://eumetcal.eu where you will need to create a user account in order to gain access to the course
Identify fogs and discriminate between fog and low cloud.
In this part of the course you will not only learn more about the identification of clouds such as Stratus, Cumulus and Cirrus from satellite images, and you will also discover various methods to derive cloud height information. Microphysical properties of clouds like cloud phase and cloud particle size are also addressed.
To access the resource click here.
Note: all resources are provided as an external link which redirects you to https://eumetcal.eu where you will need to create a user account in order to gain access to the course
Identify cumulonimbus clouds and their characteristics.
In this part of the course you will not only learn more about the identification of clouds such as Stratus, Cumulus and Cirrus from satellite images, and you will also discover various methods to derive cloud height information. Microphysical properties of clouds like cloud phase and cloud particle size are also addressed.
To access the resource click here.
Note: all resources are provided as an external link which redirects you to https://eumetcal.eu where you will need to create a user account in order to gain access to the course
Identify stratiform, cumuliform and cirriform cloud regions and individual cloud forms and their characteristics.
In this part of the course you will not only learn more about the identification of clouds such as Stratus, Cumulus and Cirrus from satellite images, and you will also discover various methods to derive cloud height information. Microphysical properties of clouds like cloud phase and cloud particle size are also addressed.
To access the resource click here.
Note: all resources are provided as an external link which redirects you to https://eumetcal.eu where you will need to create a user account in order to gain access to the course
This case study describes the evolution and the life cycle of hurricanes in general and the evolution of hurricane Ophelia (2017) in particular.
This module and the adjoined simulator treat the hurricane Ophelia that threatened Europe in 2017 and hit the coast of Ireland in October that year.
In this module, you will learn more about hurricanes in general and about the evolution of Ophelia in particular from the very beginning over the Atlantic until its final stage over Ireland.
In the adjoined simulator, you will forecast the warnings related to hurricane Ophelia and the dangers that arose with this weather situation.
Jean-Marc Moisselin and Frédéric Autones talk about rapidly developing thunderstorms (RDT and applications available for forecasting them.
RDT-CW (Rapid Development Thunderstorm Convection Warning) product is an object-oriented diagnostic for convective clouds or cells. RDT-CW is mainly based on satellite data. RDT-CW software tracks clouds, identifies those that are convective (discrimination), and provides some descriptive attributes for their dynamics. Year after year many attributes have been added to the convection object. These improvements offer end-users the possibility to focus on specific parameters according to their center of interest: dynamic of the system (cooling rate, motion vector) lightning activity, rainfall, main cloud phase of the cell, etc. These attributes may come from various sources such as NWP data, other PGEs (Product Generation Element), lightning network. In the v2013 release, an overshooting top detection inside RDT cell is proposed to users. This new attribute allows to focus on potentially hazardous areas.
In the future releases the description of convective cells will be enriched, giving a high priority to the use of other SAFNWC products. A nowcast of RDT up to one hour will be implemented.
Several SAFNWC processing chains are implemented at Meteo-France over various geographical areas: those covered by MSG of course, but also those covered by other geostationary satellites, like overseas territory where Meteo-France centers are still implemented. Forecasters in these centers are the main users to benefit from RDT as an additional product. Productions over Europe and Africa benefit to Aeronautical forecasters from Meteo-France’s National Forecast center, to French Army, and also to ACMAD, Niamey.
A target visualization tool with nowcasting capabilities will be presented, which allows taking advantage from RDT end-product. Presentation of RDT for various situations and over various areas will also be undertaken, and the latest development implemented in v2013 release will be highlighted.
Ine-Therese Pedersen speaks about difficulties of forecasting icing in the far north.
Weather forecasting in the Arctic is challenging, and the further north you go, the more difficult it can be to meet this challenge. Svalbard is situated between 74-80 degrees north and consists of several islands with high mountains, deep fjords, and large glaciers. The terrain makes it even harder to model and forecast the weather. In addition to cold, snowy weather in wintertime, one of the large challenges is icing in autumn and winter. This has an impact on both roads, animal living conditions, and air traffic. This talk will go deeper into icing in relation to air traffic on Svalbard, mostly connected to the main airport, Svalbard Airport, situated near Longyearbyen."
Juuso Paajanen presents the difficulties of using geostationary satellite data in high latitudes.
Parallax shift, Limb cooling, Low sun elevation angle are some of the issues associated with mainly geostationary satellites in the high-latitudes. Some satellite images are shown to demonstrate these issues. Some solutions are suggested here for countering these problems.
This presentation talks about Example of the tools we are using in our operational work.
Pia Isolahtenmaki (stepping in for Robert Makitie) presents how FCI proxy data help in differentiating cloud types in low-cloud conditions.
On the 11th of September an almost stationary frontal system occurred over southern Finland leading to development of a large fog cloud over the Gulf of Finland and the Baltic Sea. The fog later moved slowly over southern Finland, where Finland’s busiest airport, Helsinki-Vantaa airport, is located. The fog cloud that occurred over the Gulf of Finland was hard to spot from SEVIRI images due to different layers of middle and high clouds. When thinking about the future, the question arises, would the FCI have spotted something more in this situation?
Johannes Häkkinen presents forecasting different precipitation types and using satellites together with weather models in aviation.
The presentation will go through different precipitation types, forecasting the precipitation types, and supporting the weather model with satellite images. The precipitation types are estimated from a model sounding by top-down method. Satellite imagery is mainly used for estimation of the cloud top. The focus is on aviation weather and short-term forecasts.