Identify and interpret atmospheric phenomena
Hans Peter Roesli talks about a new product for low level moisture detection using the new 0.9 channel present on the FCI instrument.
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Sven-Erik Enno talks about the Lightning Imager instrument onboard MTG-I1 satellite.
The Meteosat Third Generation (MTG) Lightning Imager (LI) was declared operational on October 31, 2024. This brand-new European Instrument is devoted to the real-time monitoring and characterization of lightning activity over Europe, Africa, and a large portion of the Atlantic Ocean. This presentation will demonstrate LI observational capabilities from individual lightning flashes to hemisphere-scale statistics and present the outcome of the latest LI performance assessments.
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Vesa Nietosvaara gives an overview on the MTG programme and discusses FCI instrument and it's uses onboard the MTG-I1.
The complete constellation of Meteosat Third Generation (MTG) consists of three spacecraft: two imaging satellites and one sounding satellite. The first imaging satellite, MTG-I1 is now operational under the name Meteosat 12. The satellite carries two important instruments – Flexible Combined Imager (FCI), a successor of SEVIRI on MSG, and a Lightning Imager (LI), the first space-based instrument monitoring lightning occurrence over Europe, Africa and South America from geostationary orbit. In this talk, we will focus on the FCI and how it can help monitoring the weather and improving nowcasting. Forecasters will now be able to track the development of storms in near-real time with better accuracy, issue more precise and timely warnings about severe and dangerous weather events but also monitor fog development and dissipation, dust outbreaks, forest fires and many other features.
The Nowcasting SAF is planning a new software package dedicated to the new geostationary MTG-S Infrared Sounder instrument (IRS). This new software package will generate Satellite Humidity And Instability products (sSHAI) that will be key in Nowcasting using the IRS instrument. It will also deliver services to make the best use of MTG-IRS channels and combine its virtues with those of the MTG imager FCI.
In this Workshop you will learn about these revolutionary product and services. You will also have a taste of what will come in a few months with MTG-IRS by using in real world applications the prototype product obtained from the polar orbiting IASI instrument.
The Workshop is comprised of 4 presentations:
Part 1. X. Calbet (AEMET) - Introduction GEO-S
Part 2. N. Peinado-Galán (AEMET) - sSHAI prototype
Part 3. N. Peinado-Galán (AEMET) and X. Calbet (AEMET) - Practical cases with course attendants using SHAI on the EWC
Part 4. Miguel-Ángel Martínez (AEMET) - Other services from the GEO-S package: quickIRS, sSHAI_ES and Remapping tool
This document summarizes how to create a new RGB scheme and how to adapt an existing RGB for a new imager.
RGB images can be composed in many different ways. To avoid ambiguity and incorrect interpretations, WMO and EUMETSAT work to standardize the RGB images used by weather forecasters. Experts develop optimized methods to create RGB images that provide high quality visual information about specific features. The use of these standard RGBs helps meteorologists easily understand each other. The standard RGBs have schemes, or recipes, describing how to create them.
Training module focusing on identification of volcanic ash and sulfur dioxide plumes from satellite imagery.
Volcanic eruptions have a severe impact on human health, economy and traffic. They regularly cause natural disasters such as tsunamis and lava flows that are difficult to predict. Volcanic eruptions emit large amounts of gases, ash, and other aerosol particles into the atmosphere. In the short term, volcanic ash plumes have serious impacts on aviation. It is, therefore, very important to monitor the extent, height and duration of such events to properly estimate the impact of eruptions at various spatial and temporal scales, using data from different instruments on different satellites.
Zsofia Kocsis goes over the priniciples of RGB imagery, reasons for its use and guidelines for their creation.
This presentation covers what are the benefits of working with RGBs compared to single channels satellite data. We will cover how we can create RGBs, what makes an RGB good and we will also talk about what are the standard RGBs and why we like to use them.
Lecture slides
Andreas Wirth goes over the topic of Dust Infused Baroclinic Storms (DIBS) and explains the current forecast model inconsistencies regarding DIBS as well as their impact on weather.
Dust Infused Baroclinic Storms (DIBS) have a high impact on weather. Mineral dust particles in the atmosphere reduce sunlight at lower levels, reduce visibility and damp daily temperature maxima. Dust particles can have an impact on forecasted precipitation too, and in higher concentrations, dust particles can cause respiratory problems.
This presentation focuses on circulation pattern that causes dust transport towards Europe and on how to detect high dust loads in- and outside clouds from geostationary satellite imagery on the basis of recent examples.
Lecture slides
In this air quality module, you will learn to respond better to air pollution and Sahara dust events, by learning which resources to use for these events.
Atmospheric composition can be observed using various instruments (satellite and ground-based) and can be analysed and forecasted using numerical models. This training module provides an overview of available online resources that can be used to assess an air pollution or a Sahara dust event. An air pollution event is defined as a time during which the concentration of atmospheric pollutants exceeds air quality standards. In southern Europe, these also include Sahara dust events, which occur mostly in spring and summer, when south-westerly flow transports desert dust from the areas south of the Atlas Mountain range.
Sylvain Le Moal talks about use of lightning data at Meteo France.
Meteo-France already has experience processing data for French overseas territories from next-generation satellites currently in operation, such as United States’ geostationary satellites. The Goes series weather satellites (Goes-16, -17 and -18), and the on-board Geostationary Lightning Mapper (GLM), have now been operational for several years. The GLM detects and maps total lightning – in-cloud, cloud-to-cloud, and cloudto-ground – continuously over the Americas and adjacent ocean regions. The performance of the GLM, the application and use of its data can be produced for forecasters, medias, and numerical weather prediction models.
Nicolau Pineda talks about the new LI and comparison between ground based and satellite based lightning measurements.
The Meteosat Third Generation Lightning Imager (MTG-LI) is now providing continuous optical observations from the lightning occurring in Europe and Africa. Prior to the MTG-LI, the Lightning Imaging Sensor (LIS) onboard the International Space Station (ISS) offered a unique opportunity helping to prepare for the MTG-LI, since it has a similar detection principle. Whereas optical imagers like the ISS-LIS or and the MTG-LI use a narrow spectral infrared emission (777.4 nm) associated with hot lightning intra-cloud channels, commercial ground-based Lightning Location Systems (LLS) detect radio emissions in the low / very low frequency range to locate cloud-to-ground lightning. Therefore, differences between sensors and location techniques must be kept in mind when comparing lightning measurements from different systems. In this regard, the Lightning Mapping Array (LMA), which mostly detects intra-cloud discharges in the VHF range, is best suited for CalibrationValidation purposes.
Bartolomeo Viticchie talks about the new Lightning Imager on the MTG.