News Archive

AG PintoNASA Worldview
Windstorm losses in Europe – What to gain from damage datasets

A combination of different datasets is crucial to obtain a representative picture of windstorm associated impacts.

 Susanna Mohr
Hail Conference at KIT: Researchers from all over the world meet

Hailstorms cause considerable damage again and again. The 4th European Hail Workshop was held at KIT in March 2024 to inform and discuss the current state of hail research and to identify new possible solutions.

RadiosondeAgnes Meyer-Brandis
Chasing the secrets of snowflakes

6-week field campaign by researchers from KIT and Leipzig University in wintry Finland

Wolkenwalze_TeaserAndreas H. Fink
Challenges and prospects for improved weather and climate services in Africa

To adapt to climate change, Africa needs long-term investment in scientific infrastructure and careers in meteorology

GlobusHans Schipper
The IMKTRO presentation globe in the Triangle

From April to June, the presentation globe advertises meteorological research at KIT at a prominent location on Kronenplatz.

Weather Forecast: Prediction of the Distribution of Mineral Dust in the Atmosphere

With the model system ICON-ART developed by KIT, the DWD will be able to improve its energy

forecasts by predicting mineral dust and its effects on radiation.

To press release
An updated review on challenges of climate change in Germany

The new edition of the book "Klimawandel in Deutschland" shows the challenges of climate change in Germany and offers approaches for adaptation

Fabian Mockert was awarded the Climate Prize of the Reinhard-Süring Foundation

The prize honors his research on Dunkelflauten (a compound event of low wind and solar energy yield) in Germany and their relation with large-scale weather patterns.

 Marco Kaschuba
Hailstorms in South America and Australia

Valuable data for the insurance industry: Satellite data is used to estimate the spatial distribution and return periods of hail.

JungHyunju Jung
New insights into disagreement between models about tropical rainfall

A simple diagnostic tool elucidates why mean rainfall differs in tropical aquachannel simulations with different configurations

Climate research: ICON weather and climate model goes open source

Public access brings greater transparency to science and enables collaborative efforts to improve environmental forecasting worldwide

Innovationscampus_Nachhaltigkeit_TeaserMarkus Breig
Sustainability Innovation Campus launched

The South German Climate Office was successful with a start-up project for heat adaptation in small municipalities in Baden-Württemberg

EE_EPHelmholtz Earth and Environment
“EE meets EP” – Helmholtz Program “Earth and Environment” meets European Parliament

A delegation of researchers from seven Helmholtz centers traveled to Brussels to engage with political and other stakeholders around the European Union

ICON goes open source

The renowned weather and climate model ICON is now being made available to society under an open source licence with the participation of KIT researchers.

To press release /DWD
AGU Geophysical Monograph on Clouds and Their Climatic Impacts

New book edited by Sylvia C. Sullivan and Corinna Hoose explores the complexity of clouds.

How hot will our summers get?

A high-resolution climate simulation ensemble reveals the future development of heatwaves with climate change and the local heat stress for southern Germany.

Andreas FinkAndreas Fink
Andreas Fink zu Kipppunkten im Klimasystem

Abschmelzen der Westantarktis erscheint unumgänglich – trotzdem positive Trends nicht aus den Augen verlieren

Zur Presseinformation
Serial clustering of different weather extremes

This project investigates temporal clustering of different extremes based on building insurance data and with respect to potential meteorological triggers

 Touré, Appolinaire
Humboldt Research Fellows from Ivory Coast and Cameroon at KIT

Evelyne Touré and Appolinaire Vondou visited  IMK-TRO to conduct research on extreme rainfall and air pollution in Africa

Datenassimilation: Genauere Wettervorhersagen durch zusätzliche Messungen

Forschende des KIT untersuchen, inwieweit sich die Qualität von Wettervorhersagen durch zusätzliche Messdaten verbessern lässt

Dr. Bernhard Vogel receives the European Aerosol Assembly Award 2023

Recognition for the development of the online-coupled meteorological and aerosol-chemistry models COSMO-ART and ICON-ART

NASA Worldview NASA Worldview
Dispersion and Aging of Aerosols after La Soufrière Eruption 2021

The first direct comparision of modeled and observed aerosol aging after a volcanic eruption.

wetterkarteBernhard Mühr, KIT
Global Heat Wave 2023: July Brought Hottest Three Weeks Ever

KIT researchers publish report on this year's temperature records in the northern hemisphere - Italy was by far heat hotspot in Europe

To press release
Prof. Dr. Sarah Jones, ab 1. August 2023 Leiterin des Deutschen WetterdienstesDWD
Sarah Jones appointed first woman to head the German Meteorological Service

Prof. Sarah Jones has succeeded Prof. Gerhard Adrian, extraordinary professor at IMK-TRO, as of 01.08.2023. We warmly extend our congratulations to our former professor on her new task!

To press release / DWD
First multi-model assessment of the sub-seasonal predictive skill for weather regimes

A recent study assesses the performance by numerical models in predicting flow situations of high interest for numerous socio-economic sectors.

Hagelkorn im Eisfach: Bitte Mail an hagel@imk-tro.kit.eduJannik Wilhelm
Searching hailstones...

Hailstone in the freezer: Please send an email to

Milestone reached in pilot project at IMK-TRO - equal opportunities and appreciation of diversity

The results of the status quo analysis were discussed at a working meeting. Future measures were developed, concretized and classified.

Machine learning-based weather forecasts now available at

Pangu-Weather, developed by Huawei, provides cost-effective and energy-saving forecasts

 GroupPhotoS. Hauser

Participants from seven research institutes designed roadmap towards next major Atlantic field campaign

Teaserbild_LaunchSonde_SMohr_750x500pxSusanna Mohr
On the hunt for thunderstorms and hail....

...with hail sondes and drones for a better understanding of hail formation – training successfully completedt.

GewitterspurAmadeus Bramsiepe, KIT
Tracking down thunderstorms

Measurement campaign in the Black Forest investigates weather extremes to better understand and predict their causes and consequences.

to press release
A comprehensive study of the extreme hot and dry European summer of 2018

A multi-faceted weather and climate analysis of the extremely hot and dry European summer of 2018 provides new evidence of present-day and future heat waves

KU Newsletter
Über Ostasien flattert ein Schmetterling ...

Die Hitze war beispiellos: Im Sommer 2021 litten die westlichen USA und Westkanada unter sengender Sonne.

FakultätslehrpreisVeranstaltungsmanagement und Zentrum für Mediales Lernen (ZML) am KIT
Faculty teaching award 2023 for Alexander Lemburg

For outstanding teaching in the Introduction Week for international first-year students in the MSc Meteorology and Climate Physics

MICOS_samples_teaserSebastian Vergara Palacio
The hard core of clouds

Laboratory campaign investigates the efficiency of large mineral dust particles to nucleate cloud ice.

Swabian MosesAndreas Wieser
Thunderstorm observation from the first cloud to hail damage

IMK-TRO leads Swabian MOSES measurement campaign to study thunderstorms and heavy precipitation around the Black Forest region

LSDPJulian Quinting
How warm conveyor belts influenced the 2021 North American heat wave

Warm conveyor belts associated with low-pressure systems across the North Pacific influenced the prediction of the record-breaking heat wave in Western North America in 2021.

AerosoleinflüsseH. Vogel
Aerosol effects on photovoltaic systems - 50 shades of gray

Back in the day, Loriot, a German comedian, already knew that there are many shades of gray. Aerosols haze the atmosphere and consequently reduce the radiation at ground level.

The Portuguese wildfires in 2017 as multivariate high-impact weather event

Compound weather and climate events: the analysis of the October 2017 wildfires in Portugal and implications for end user guidance

DunkelflautenFabian Mockert
Using weather regimes to better predict Dunkelflauten in Germany?

Periods of low wind and solar power output in combination with cold temperatures can stress the energy system.

Fischer_earthDWD/Jannik Wilhelm
Better weather forecasts thanks to artificial intelligence?

KIT researchers and members of national weather services discuss new "playground" to explore the benefits of machine learning in weather forecasting.

hoose_baroclinicBehrooz Keshtgar
Interaction between clouds and radiation affects extratropical cyclones

Cloud radiative heating and cooling have a substantial impact on the dynamics and predictability of an idealized extratropical cyclone.

  Amadeus Bramsiepe
More Precise and Efficient Weather Forecasts

Julian Quinting of KIT receives ERC Starting Grant – ASPIRE project increases reliability of weather forecasts, and reduces computing costs and energy consumption

to press release
Babic_Inntal_TeaserNevio Babic
Tributary outflows in the Inn Valley during the TEAMx pre-campaign

Coupling two KITcube Doppler wind lidars enabled a novel perspective of tributary valley outflows during stable nighttime conditions.

Time for Change

Pilot project at IMK-TRO to realize more equal opportunities and appreciation of diversity

JQADIMartina Klose
On the track of the secret of giant dust particles

Unprecendented international field campaign in Jordan starts.

klimaforschung-AfrikaMarlon Maranan
Tracking the weather

  IMK-TRO's climate research in Africa makes valuable contributions to flood protection and rainforest preservation

 Sebastian Becht
How do large-scale processes influence local-scale thunderstorm activity?

In parts of Europe, thunderstorm activity decreased over the last two decades. Large-scale processes could be an explanation for this.

 Lea Eisenstein
Artificial intelligence helps distinguish high-wind areas in winter storms

New software RAMEFI allows an objective identification and thus detailed analysis of forecast errors in winterstorms

Clouds played an important role in the history of climate

Global models show the crucial influence of clouds on changes in Earth’s climate and on conditions for the evolution of life

to press release
PI_2022_67_750x500.pngDominik Kuhn
Climate Change and Land-use Changes Increase Likelihood of Flood Events

New Studies on the 2021 Floods in the Eifel Region and on Future Trends of Such Extreme Events

to press release
 Andreas Wieser
Evaluation of the urban climate model PALM-4U over Stuttgart

Hight time-resolved Doppler Lidar measurements of vertical wind in Stuttgart enable validation of turbulence parameters in urban climate model PALM-4U

 S. Mohr KIT
11. REKLIM-Konferenz „Klimawandel in Regionen“: Saubere Luft ̶ Saubere Energie

Date: September 20, 2022, 9:00 a.m. – 5:00 p.m.; Location: KIT, Campus South, Geb. 30.10, NTI lecture hall

to press release
 C. Grams
In search of the culprit for mispredictions of high-pressure situations

Warm conveyor belts associated with low-pressure systems are linked to the prediction of persistent high-pressure systems over Europe

 Markus Breig (KIT)
Interactive globe of the IMK-TRO at Hannover Messe 2022

The South German Climate Office and CEDIM present current projects and results from climate and risk research at the Hannover Messe from 30.05.-02.06.2022.

to press release
    EUMETSAT/Dundee University
How to measure the "pulse" of the tropical atmosphere?

New paper led by IMK-TRO’s Peter Knippertz brings together international experts to systematically compare methods to identify equatorial waves

  D. Moses
“Vertical mapping” of airborne microorganisms with measurements from KIT meteorological tower

Meteorological tower at KIT Campus North contributes to research on the microbiome in the atmosphere; the results were recently published in PNAS.

  A. Fink, KIT
Prof. Andreas Fink appointed Fellow of the American Meteorological Society

This year, Andreas Fink is one of 22 fellows, only 2 of them coming from institutions outside the US.

 P. Braesicke
Christoph Kottmeier awarded Alfred-Wegener-Medal of the DMG

On 21 March 2022 Prof. Dr. Christoph Kottmeier, former head of the IMK-TRO institute, received the Alfred-Wegener-Medal of the German Meteorological Society (DMG).

 Bianca Adler
Investigation of the convectively driven boundary layer in the Inn Valley during CROSSINN

Combination of multiple Doppler lidars enables a detailed spatio-temporal investigation of the boundary layer top over complex terrain.

  Pickl et al. 2022
One-sided effect of stochastic perturbations in ensemble forecasts on rapidly ascending air streams

Symmetric perturbations in ensemble forecasts lead to more rapidly ascending air streams and thus change the mean state of the atmosphere in the model

 Quelle: Bernd März / Unwetter-Freaks
Prof. Pinto summoned as expert on Ahr/Erft flood event in July 2021

Prof. Joaquim Pinto appears as an expert witness in the investigation committee of the NRW state parliament on the Ahr/Erft flood event in July 2021.

Volcanic Ash Dispersion after the Raikoke Eruption in June 2019

The ash dispersion forecast is challenging for eruptions with complex dynamics. We present a solution here.

 Kim Stadelmaier
New insights into the last glacial permafrost distribution in France

Regional climate model simulations provide new perspectives on the permafrost extent in France during the Last Glacial Maximum

 Heinz Jürgen Punge
Will severe convective storms be more frequent in the future?

This question is addressed by many researchers, but also insurers fear increasing losses.

 M. Maier-Gerber
Improving the predictions of tropical cyclones at lead times of up to five weeks

A combination of statistical and dynamical forecast approaches beats all previous methods from week 2-3 onward

 M. Klose
Mineral dust in storm-resolving global climate simulations

Young Investigator Group contributes to developing the next generation of global coupled Earth system models

 M.Latt, KIT
Successful completion of the "Swabian MOSES" measurement campaign

Both strong thunderstorms passing directly over the measurement sites and the complete absence of predicted events were observed

 Seraphine Hauser
International Workshop on Atmospheric Blocking

A virtual workshop co-organized by IMK-TRO brought together the world leading experts on the dynamics of atmospheric blocking in September 2021

  AG Grams
First systematic verification of warm conveyor belts in weather prediction models

Warm conveyor belt biases in numerical weather prediction models are potentially linked to biases in persistent high pressure systems.

Peter Knippertz new talent scout of the Humboldt Foundation

Prof. Peter Knippertz was selected as a scout in the Henriette Herz Program of the Alexander von Humboldt Foundation and can now directly propose foreign researchers for a Humboldt Research Fellowship at KIT.

  Simon Haberstroh
Drought during climate change - A threat to ecosystems?

A DFG project investigates potential impacts of extreme drought and plant invasion on Mediterranean ecosystems.

 M. Klose
Dust from a cold desert

International field campaign to investigate Icelandic dust emission, transport, composition, and impacts

 Riccardo Prevete, KIT
Supercomputer HoreKa inaugurated at SCC

Prof. Corinna Hoose presented first simulations run on HoreKa and pushed the start button together with Minister Theresia Bauer, VP Prof. Oliver Kraft and SCC director Prof. Martin Frank

 A. Fink, KIT, IMK-TRO
Is the planned "Great Green Wall" in the African Sahel sustainable ?

A new study involving Andreas Fink delineates natural limits for this ambitious project based on climate data.

 Fritz Waitz, KIT
Atmospheric research: small ice crystals with big impact

Researchers at KIT and the University of Vienna are investigating the influence of tiny atmospheric ice crystals in the earth's climate system.

 J. Handwerker, KIT
Ground based drop size measurements support polarimetric radar

As part of MOSES, IMK-TRO is pioneering a network of instruments to measure precipitation sorted by droplet size.

 Markus Breig, KIT
Tree and forest management under climate change

The appearance of our forests has changed dramatically. This project intends to assist sustainable forest management with high-resolution climate information.


 Martin Stengel
Podcasts Climate Change #2: The Mysterious Composition of Clouds.

2nd episode of the german-language podcast series titled "Contributions to Climate Research from Karlsruhe" with Prof. Corinna Hoose, IMK-TRO, has been released

 Andreas Wieser, KIT
From thunderstorms to heavy rain to periods of drought

Helmholtz initiative MOSES starts measurement campaign coordinated by IMK-TRO on hydro-meteorological extremes in the area of ​​the Swabian Alb.

 Quelle: Ittiz/wikimedia, CC BY-SA
What did windstorms look like 20,000 years ago?

During the Last Glacial Maximum, European windstorms were more frequent and associated with stronger winds and weaker precipitation than today.

 American Meteorological Society
Does air pollution reduce rainfall in southern West Africa?

New study by Pante et al. warns that further increase of human emissions could endanger water resources.

 C. Hoose
Excellent Teaching in the BSc and MSc Programs of Meteorology

Lectures and exercises received excellent grades from the students and teaching awards from the KIT faculty of physics.

The dark side of dust

Mineral dust transport causes dimming of the sky and stained cars. Does it also affect our electricity production?

 Philipp Gasch
How does the wind blow above a mountain range?

How does the wind blow above a mountain range?

 ECMWF, iLexx / Stock / Getty Images Plus, KIT
Dr Christian Grams appointed ECMWF Fellow

The prestigious fellowship will allow close collaboration with colleagues at ECMWF in research on weather forecasting on sub-seasonal time scales.

more ...
Artificial intelligence helps to verify processes in NWP and climate models

A novel diagnostic demonstrates how deep learning may advance our fundamental understanding of processes on the weather time-scale.

Webinar: Wind research in complex terrain with Doppler lidars

Three researchers from the Karlsruhe Institute of Technologies in Germany share their findings collected during some of the most recent and advanced complex wind measurement campaigns.

The effects of afforestation on the diurnal temperature cycle

Afforestation leads to opposing diurnal temperature cycles at the surface and in the lower atmosphere in summer

Prof. Peter Knippertz receives Editor's Award

In 2020 Prof. Peter Knippertz from IMK-TRO received the Editor’s award of the Quarterly Journal of the Royal Meteorological Society.

LAERTES-EU: New regional climate model ensemble with high application potential

Size matters: Large data amounts reduce the statistical uncertainty in the analysis of extreme weather phenomena and their impacts.

The secular series of temperature and precipitation in Central Europe according to Franz Baur

250-year temperature series for Central Europe shows strong warming since the Little Ice Age

3rd European Hail Workshop 2021

The next European Hail Workshop takes place from 15 to 19 March 2021 as an online workshop. Abstract submission and participant registration are now possible.

  Martin Kohler
Prepared for the future - Meteorological tower obtains new, modern data acquisition

With a new data acquisition concept, the meteorological tower at the CN is well prepared for future tasks.

  Martina Klose
New Helmholtz Young Investigator Group on mineral dust at IMK-TRO

New research group led by Dr. Martina Klose investigates aerosol-climate-interactions

more ...
September 2020 - Not only in California the vegetation burned

Forest fires reduce the air quality and the yield of solar plants not only in California. In early September, the forest fires on the American West Coast...

How reliable are long-term weather forecasts following weak polar vortex events?

New insights show that month-ahead temperature forecasts for Europe following sudden stratospheric warmings have to be interpreted with caution.

Predictability of large thunderstorm systems

The predictability of a large thunderstorm system (Pentecost Monday, 2014) is extremely sensitive to the small changes in the chosen model domain

more ...
 Gabi Zachmann, KIT
Effects of weather on infectious diseases

An international research team with the participation of KIT investigated the connection between weather conditions and influenza waves in the Eastern Mediterranean.

more ...
News from CEDIM: Corona Dashboard and Research Report 2017-2020

How the current corona pandemic is influencing the work of CEDIM - that and much more is presented in the new CEDIM research report

A New Research Avenue for Improving Extreme Weather Prediction

A new dynamical systems method may improve the ability to predict extreme weather events and complement numerical weather predictions

Aircraft and lidar measurements during the CROSSINN campaign: complex cross-valley flow structure as never seen before

The CROSSINN project investigates the three-dimensional structure of valley flows in a major Alpine valley

more ...
The DACCIWA rain gauge network in southern West Africa

On the usage of high-resolution rain gauges to monitor tropical rainfall and validate satellite-based preipitation products over Ghana.

more ...
Improved Forecast for aviation safety: The mixture does it

The representation of aerosol dynamics improves the forecast of volcanic ash dispersion.

Why does it rain in Australia during El Niño?

Variability of weather systems explains different precipitation patterns during El Niño as revealed from a comprehensive climatological analysis

Klimawandel trotz Corona weiterhin wichtiges Thema

Auch wenn die momentane Krise rund um Covid-19 die Medien und uns alle stark beschäftigt, so geht doch auch der Klimawandel weiter.

Cloud life cycles and glaciation observed by satellite

The temporal evolution of convective clouds, from initiation via glaciation to dissipation, is inferred using geostationary space-based measurements

Which are the large-scale processes that influence thunderstorm activity in Europe?

Research on extreme weather events and climate change has made significant steps forward in recent years. However, a better understanding of the influence of large-scale processes on thunderstorm activity is still required.

 M. Kleber
Performance criteria of wall-building materials under influence of climate change

A technical requirement profile for plasters was developed that actively intervenes in indoor climate by moisture storage and transport capacity.

1st ClimXtreme – Module A meeting takes place in Karlsruhe1. ClimXtreme - Modul A Treffen findet in Karlsruhe statt

On the 9th and 10th of January 2020, the IMK held the first Climate change and eXtreme Events (ClimXtreme) project meeting, devoted to Module A, Physics and Processes.

Resolving Sahelian thunderstorms improves weather forecasts for Europe

A more realistic representation of summertime West African thunderstorms results in improved medium-range weather forecasts for the mid-latitudes

Convective precipitation using different grid spacing and land-surface representation

Modeled convective precipitation shows lower precipitation amounts using finer horizontal grid spacing and land-surface representation contributes about 20%.


White Christmas: A challenge for Subseasonal Prediction!?

Weather regimes and stratospheric conditions together change odds for regional weather extremes and subseasonal predictability in winter.

Clouds modify jet stream response to global warming

Climate model simulations indicate strong impact of clouds on the circulation response to global warming and regional climate change

Sub-hourly GPS assimilation for a better simulation of heavy precipitation

With climate change, an increase in the frequency and intensity of extreme precipitation is expected in the Western Mediterranean (WMed). Simulating this high impact weather remains a challenge

Relative impact of aerosol, soil moisture and orography on convection

For the first time, the relative impact of orography, soil moisture and aerosols on precipitation over Germany was analyzed for different weather regimes.

How to understand better atmosphere’s influence on thunderstorm lifetime?

Ongoing research aims to identify meteorological quantities for the improvement of short-term thunderstorm forecasts in cooperation with DWD.

3rd European Hail Workshop, 16-18 March 2020, Karlsruhe

The IMK-TRO is organizing the next European Hail Workshop in Karlsruhe. Abstract submission (Deadline 29.11.19) and registration (Deadline 31.01.20) is now possible on the workshop website.

more ...
Strong increase of heat stress in Germany in the near future

In some regions of Germany, heat stress will increase significantly towards the middle of the century

Climate change impacts on European olive orchards

Climate change will have a strong impact on southern European olive producing countries

Heftige Gewitter Anfang August 2019 im Raum Karlsruhe

Am Abend des 6. und 9. August 2019 gab es besonders kräftige Gewitter, die Karlsruhe überquerten und einige Sturmschäden verursachten.

Volcanic Ash Forecast with ICON-ART

Simulation of ash dispersion after the eruption of Raikoke volcano, one of the strongest eruptions during the last 30 years

Exceptional severe thunderstorms with large hailstones in June 2019

In June 2019, several severe thunderstorms associated with hail, heavy precipitation and severe wind gusts caused considerable damage in Germany.

Radarbild_KitcubeMartin Kohler
From Rain to Flood?

HYDREX 2019, Measuring campaign in the Müglitz valley in Saxony is about to be completed. Helmholtz research centres carry out joint measurement campaign on hydrological extremes.

Local and precise: neural networks in the weather forecast

Scientists from meteorology and mathematics at KIT have jointly developed a new method that corrects errors in weather forecasting on the basis of artificial intelligence.


European heat also develops locally

Central Europe suffers from the current heat wave. The danger of forest fires and health impacts accompanies such extreme weather.

Successful start of collaboration between IMK and University of Tsukuba

DAAD joint research project will study the subseasonal predictability of weather regimes in Europe and Asia.

Two YIN grants for interdisciplinary research

Young investigator group leaders cooperate with mathematicians and energy system modelers.

Contribution of Mediterranean soil moisture conditions to heat wave intensity in Central Europe

European heat waves, such as those in summer 2003 and 2015, have a high heat-related mortality rate, e.g. 2003: 70,000 deaths

DFG Collaborative Research Center “Waves to Weather” enters 2nd phase

Consortium with Munich and Mainz focuses on deficiencies and challenges of weather prediction with the aim to improve forecast models.

Forensic Disaster Analyses of Cyclone IDAI

In March, tropical storm IDAI caused many deaths, injuries and severe damage to buildings, highways and critical infrastructure in South East Africa.

Doktorand des KIT wird Schmidt Science Fellow

Andreas Schlüter, Doktorand am IMK-TRO des KIT
ist der einzige Schmidt Science Fellow aus Deutschland.

Practical tailored climate parameters for climate adapation

Climate change affects many fields of action. The integration of adaptation experience into the analysis of regional climate simulations provides a basis for the implementation of adaptation measures.

One step at a time

Changing model time step significantly affects thunderstorm simulations. This problem could now be solved.

 University of Leeds
KIT and University of Leeds Sign Agreement

Partnership agreement strengthens research projects and exchange opportunities for students and staff.

 Sébastien Chastanet
Particulate Matter Pollutes the Air above Africa too

Impact of air pollution on climate, humans and the environment as well as the role of the West African summer monsoon – German-African consortium presents policy brief.

Umwandlung Wirbelstürme-Potentielle Temperatur
Are mountain ranges important for extratropical transition?

The extratropical transition of tropical cyclones near land can be delayed due to orographic blocking of mid-latitude air.

  Andreas Fink
Prof. Dr. Andreas H. Fink joins the CLIVAR-GEWEX Monsoons Panel for a three-year term from 31 January 2019 to 31 December 2021

The Monsoons panel is a joint committee of two projects of the World Meteorological Organization’s World Climate Research Programme.

Forecasts of Rossby wave packets and blocking on subseasonal timescales

Subseasonal forecasts systematically underestimate the occurrence frequency of long-lasting and stationary high pressure systems over Europe.

Monsoon-BildAli Nishan
Understanding and predicting tropical rain belts

The TRACMIP project helps to improve the understanding and modeling of the response of tropical rainfall to climate change.

MiKlip Forecast
Regional decadal climate prediction for Europe 2019 - 2028

The recent decadal climate forecast indicate for Europe distinctly warmer conditions over the next ten years compared to the past.

Hagelschäden Sydney
Severe hail damage in Sydney – an extreme event?

IMK-TRO joined forces with insurance partners to understand Australia hail risk.

Countless feather clouds

Contrails reduce photovoltaic production!

Statistical emulation: An alternative approach for sensitivity analyses

Statistical emulation allows for a comprehensive analysis of the sensitivity of deep convective clouds and hail to environmental conditions.

Mapping the complex rainfall seasonality of the Greater Horn of Africa

A novel and flexible rainy season definition is introduced for the Greater Horn of Africa.

Staub_AtlantikNASA Earth Observatory
Mysterious Dust Transport over the Atlantic Ocean

New study in Science Advances is dedicated to so-far ignored climate effect!

How does precip change below the radar beam?

There is a gap between the lowest radar measurement and ground. How does precipitation change in this gap?

Hail hazard and hail risk in Germany

Development of a new high-resolution hail loss model in cooperation with an insurance company successfully completed.

Neural networks learn boundary layer meteorology

Neural networks can be taught to simulate the energy and mass fluxes between land surfaces with varying land use and the atmosphere.

Foehn winds at the Dead Sea! How can this happen?

Periodic wind system of foehn character with high impact on lake evaporation detected in the Dead Sea valley.

7th European Windstorm Workshop at KIT

Participants discuss new developments in European windstorm research and associated risks.

The politics of air pollution in Africa

EU-funded DACCIWA project is communicating its main findings to policymakers in Africa and Europe.

Cloud water and ice: what satellites miss

The cloud ice fraction measured by satellites is systematically biased, because satellites can hardly see into clouds.

KIT_cube_NachtMarkus Breig
Will there be a flood after the heat wave?

Heavy precipitation events are investigated by IMK-TRO in the Eastern Ore Mountains when KITcube joins the MOSES observation system starting in spring 2019.

Process-oriented Understanding of weather forecast error

Cloud-condensational processes associated with weather systems can amplify forecast error and result in severe “forecast busts” of the large-scale circulation.

CLM-Assembly 2018 at KIT in Karlsruhe, 18-21 September.

For details see the conference website!

Auto unter Baum
Convective wind gusts in Germany

Extreme gusts in summer are often associated with severe damage.

Aerosols - small heaters in snow

Aerosol particles in snow intensify snow and glacier melt.

ESKP_Stadt_KirchePino Madeo /
Improve indoor climate, reduce heat load in buildings

Summerly heat waves significantly affect indoor comfort.

staub_totes_meerJ. Vüllers
Measurements of atmospheric dust concentration at the Dead Sea

Insights into dust storm through new dust measurements at the Dead Sea.

ESKP_HausTina Kunz-Plapp
Recognize health-threatening heat islands in the city

If cities are too warm, this is also due to certain settlement structures.

Less reliable wind energy production in Europe due to climate change?

Climate change could impede the wind energy production in Europe.

ESKP_KITcubeAndreas Wieser
Significant for air quality: understanding wind fields in the city

Wind and weather are decisive factors for air quality and climate in agglomerations.

Tracing water over Africa

New collaboration of scientists from Karlsruhe, Zurich and Berlin to investigate the pathways of water vapour in the atmosphere!

Flash floods in megacities of Africa and Southeast Asia

Better weather forecasts could have a noticeable influence on the agricultural, economic and social development in Africa.

KITcube_AfrikaSébastien Chastanet
The enigma of low-level clouds over southern West Africa

State-of-the art measurements with the mobile platform KITcube allow to detect decisive processes and parameters for low-level cloud formation.

Improving weather forecasts on sub-seasonal time scales

A better understanding of the dynamical processes governing sub-seasonal predictability and novel forecast products help improving 10-60 day weather forecasts.

Researching Tram - on track of air pollution

Special prepared trams on the way between Karlsruhe city center and the surrounding area!

Weakening of extratropical cyclones by cloud-radiative interactions

Idealized model simulations suggest that clouds and their radiative interactions might have an important and so far not studied impact on extratropical weather systems.

State-of-the-art data bases to advance understanding on extreme weather

Stronger, more frequent weather extremes will occur under climate change. Improved understanding of these phenomena is vital to minimize damages.

Flood risk in southwest Germany

An interdisciplinary research project between IMK-TRO, IWG and GPI enables the estimations of the flood risk in Germany.

ESKP theme special "Metropolises under pressure"

Online dossier on the development of megacities, urban climate and quality of life, question of resources and threat of natural hazards.

link (In German)

Modeling European and Arctic (Paleo)Climate at Regional Scales

High resolution isotope enabled regional climate models can improve significantly water isotope climatologies.

How swelling of aerosols is dimming the atmosphere in Africa

Aerosol particles can take up huge amounts of water. This reduces the amount of solar radiation reaching the surface.

totes_meer_teaser2004Bernhard Deny
First evaporation measurements at the Dead Sea

The Dead Sea is shrinking. We measured the decisive factor - evaporation.

Downscaling of paleoclimate model data

Downscaling of paleoclimate data offers new perspectives to comapare climate model and proxy data.

New insights into century-scale rainfall variability over Africa

Using the longest and most comprehensive gauge series for Africa, Andreas Fink puts recent droughts into a longer term perspective.

Peter Knippertz and Andreas Fink awarded with a prize.

“Meteorology of Tropical West Africa; the forecasters’ handbook” has been awarded by the Atmospheric Science Librarians International (ASLI) with the prize “2017 ASLI Choice”.

Was the earth a snowball?

Aiko Voigt gets to the bottom of the phenomenon at KIT. The results could provide insights into the extent to which life on other planets is possible.

 Bernhard Mühr
Reliable wind power for Europe

Comment of Prof. Joaquim G. Pinto and Dr. Christian M. Grams about the impact of climate change on European wind power

Willis hail project is one of the Willis Tower Watson flagship projects


DACCIWA - Weather, Climate and Air Pollution in Western Africa:

A report on the atmospheric measurements in 2016

IAMAS Early Career Scientist Medal for Corinna Hoose

Prof. Corinna Hoose has received the IAMAS (International Association for Meteorology and Atmospheric Sciences) Early Career Scientist Medal.

Successful 2nd European Hail Workshop in Bern

The "2nd European Hail Workshop" took place from 19.-21.4.2017 at the University of Bern

 Markus Breig
New Endowed Professorship at KIT: Risks of Extreme Weather Events

Joaquim Pinto’s Research Focuses on Regional Climate and Weather Hazards – AXA Research Fund supports a new Chair at IMK-TRO


  Bianca Adler
Studying Winter Storms in Karlsruhe

Meteorologists study the development of squalls with the help of measuring instruments on Karlsruhe’s “energy hill.”

New junior research group "Clouds and storm tracks"

A BMBF-funded junior research group has started on Sep 1, 2016 within the HD(CP)2 project.

more ...
  Sandra Göttisheim, KIT
Cloud Physics: KIT Researcher Receives ERC Starting Grant

For her research on the composition of clouds, Professor Corinna Hoose is awarded an ERC Starting Grant in the amount of EUR 1.5 Million.

more ...
   Norbert Kalthoff
Fires Pollute the Air in West Africa

KIT coordinates EU-funded project DACCIWA that studies the air over the coastal region of West Africa.

more ...
 Sandra Göttisheim
Saharan Dust: Reliable Forecasts for Photovoltaic

PerduS Project Examines Yield Loss of Photovoltaic Panels Caused by Desert Dust

 Sekou Keita
Climate Researchers Warn of Risks from Air Pollution in West Africa

Air Pollutants over Megacities Might Affect Regional Climate Change ...

more ...
Transregio „Waves to Weather“

DFG supports current aspects of weather research at SFB/ Transregio 165 „Waves to Weather“. IMK is involved with many projects at Transregio.

more ...
  U. Corsmeier
Atmospheric research in the Valley of the Dead Sea

Researchers Study Change in the Dead Sea Valley

 C. Liousse, UPS/CNRS
New EU project DACCIWA started

IMK-TRO coordinated €9M project “Dynamics-aerosol-chemistry-cloud interactions in West Africa” started...

Storm documentation of Deutsche Rück

In the current storm documentation of the Deutsche Rück the weather patterns of the last year and the ensuing natural hazard damage is described.

SAVE THE DATE: REKLIM Regional conference in Karlsruhe

The Helmholtz Climate Initiative REKLIM (Regional climate change) invites you to its 6th regional conference in Karlsruhe on 05/10/2016.

Implementation of first meteorological station in Palestine

Together with several stations in Israel and Jordan IMK-TRO operates its first permanent meteorological station in Palestine.

more ...
Vaisala Award

Prof. Andreas Fink, IMK-TRO, has been decorated with the Vaisala Award at the Royal Meteorological Society. programm.

more ...
PANDOWAE Final Symposium

Progress and Future Directions of Research on Predictability and Dynamics of midlatitude Weather Systems Karlsruhe, Germany, 18-21 May 2015

more ...
Weather Measurement for Research and Education

The KIT weather station "Rheinstetten" has been operational since 10 years.

more ...
 Lydia Albrecht / KIT
Hitzewelle 2015 - Schwitzen auf der Wärmeinsel

Während der Hitzewelle Anfang August war es  in der Karlsruher Innenstadt bis zu 7 Grad wärmer...

mehr ...
Mineral Dust

A new textbook from P. Knippertz und J.-B. Stuut dealing with state of the art research in the field of mineral dust is published by Springer. 

 Nele Ziegler, KIT
Cloud research for better weather and climate models

Measurement campaign in Jülich captures the spatial structure of the cloudy atmosphere more accurately than ever before - Climate scientists from the KIT with "KITcube" be involved.

Training course for the model system ICON-ART

A training course for the model system ICON-ART was held from July 7 to July 9, 2014 in the Hessian city Langen.

Comenius EduMedia Seal

The GeoPortal of Landesmedienzentrum Karlsruhe which is in parts operated in cooperation with the IMK (online tool about weather analysis and forecast) was decorated with the Comenius EduMedia Seal 2014. more...

IMK-TRO now at Facebook

The institute has now a Facebook-account. Link

App of the "South German Climate Office" now available.

"Your Climate" presents locations in Karlsruhe with significance for the climate of the city.

Nachhaltigkeitstage Baden-Württemberg 2014

Das Süddeutsche Klimabüro präsentiert sich auf dem KIT-Campus Süd am 11. Juli

Registration: International REKLIM-Conference in Berlin, Germany from 6–9 October, 2014

"Our Climate – Our Future, Regional perspectives on a global challenge"

Organization Inside of the Chaos

KIT-YIG have developed a new measurement approach which helps to a better understanding of turbulence in the atmospheric boundary layer.

Supertyphoon 'Haiyan' Philippines

CEDIM analyzes Tropical Cyclone "Haiyan" and its impacts in an interdisciplinary team. Results will be published here in a series of reports.

 Bermhard Mühr
First European Hail Workshop, 25-27 June, Bern

IMK-TRO together with University of Bern, Meteo Swiss and Mobiliar Lab jointly organizes the 1st European Workshop in Bern.

more ...
Olympia-Wetterbericht für Sotschi

IMK-Forscher erstellen hoch aufgelöste Wetterprognosen für die deutschen Olympia-Teilnehmer

Internationales Messprogramm HyMeX im Mittelmeerraum mit KIT-Beteiligung gestartet

Die Intensivmessphase (Special Observation Period, SOP) des Forschungsprogramms HyMeX (Hydrological Cycle of the Mediterranean Experiment) begann offiziell am 4. September und wird bis zum November durchgeführt. 

Wissenschaftsfestival „Effekte“

Im Rahmen von CEDIM präsentiert sich das Institut für Meteorologie und Klimaforschung (IMK) beim Wissenschaftsfestival „Effekte“ (22.-23.6.13) in Karlsruhe

Heavy thunderstorms with tornados over the Great Plains and Mid-West of the USA

Badly affected was Oklahoma, where an EF5-Tornado struck Moore, a suburb of Oklahoma City.

Wettergefahren-Frü (german)
Aktuelle Informationen zum Starkregen/Hochwasser in Mitteleuropa und im nördlichen Alpenraum

Das stationäre Regenband im Osten Deutschlands brachte bis Montagmorgen weitere 24-stündige Niederschlagssummen zwischen verbreitet 20 und 40 mm.

 Marc Puskeiler
Wetter aus Karlsruhe für erfolgreiche Segelflug-Weltmeisterschaft deutscher Piloten

In Argentinien fand vom 5.-20.1.2013 die Segelflug-Weltmeisterschaft statt. Meteorologen des KIT waren in verschiedener Weise daran beteiligt.

Winter im März - normal?

Der Winter im März 2013 war sehr ungewöhnlich hinsichtlich Intensität und Andauer...

 Adrian Leyser

Temperaturen unter Null Grad und länger anhaltender Regen - das waren die Zutaten für eine ausgeprägte Glatteislage. Insbesondere im Südwesten Deutschlands sorgte dies am 20. Januar 2013 für teilweise erhebliche Behinderungen. Vereiste Böden und Oberleitungen ...

HyMeX (HYdrological cycle in Mediterranean EXperiment)

In the HyMeX project, among other things, the formation of high impact weather in the western Mediterranean is investigated in detail.

Extreme Hitze in USA

Nach einem rekordverdächtig warmen Frühjahr setzte sich die Wärme und Hitze im Sommer 2012 über den USA und über Nordamerika beständig fort. Der Juli 2012 ging in den USA als heißester Juli seit Aufzeichnungsbeginn ein. Im Kanadisch-Arktischen Archipel und auf Grönland wurde massiver Eisschwund beobachtet.

32nd "Sparkassen" - Prize awarded to Dipl.-Met. Marie Kapsch

For her diploma thesis "Longterm variability of hail-related weather types in an ensemble of regional climate models" at the IMK-TRO Marie Kapsch was awarded the "Sparkassen" - prize.

YIG Dual-Doppler Lidar

Young Investigator Group "Exploring Coherent Structures Using Dual-Doppler Lidar Systems" at IMK-TRO


The combined weatherforecast and particle dispersion model COSMO-ART is running operational now.

COPS: Results published

A Special Issue of the „Quarterly Journal of the Royal Meteorological Society“ has been published with results of the COPS project aiming at an improvement of precipitation forecasts in weather prediction models. The main findings were presented to the public in a press conference.

Press Release (german)

KITcube: Measuring operations started

The atmospheric observation system "KITcube" was passed to its purpose on 15th November 2011 by the Vice President of KIT, Dr. Peter Fritz.
In Hatzenbühl/Pfalz measurements in the atmosphere began that contribute to a better understanding of the weather.

Press Release (german)

Land der Ideen
Award for AERO-TRAM

As part of the competition for innovative ideas the AERO-TRAM was awarded. It has been developed and operated by the IMK-TRO in collaboration with the Karlsruhe public transport operators and the company enviscope. The city railway measures air quality in the greater area of Karlsruhe. The award was presented during the KIT annual celebration 2011 to the leading scientists of the project, Dr. B. Vogel and Dr. U. Corsmeier.

"Land der Ideen"

The Cold Spell in Europe at the beginning of February - an Analysis

On the webpage of Wettergefahren-Frühwarnung (german) there is an analysis available now concerning the cold spell in Europe at the beginning of February 2012 with detailed informations about the weather situation, measuring data, a climatological classification and many pictures.

more (german)...
KIT Doctoral Award 2011 goes to Dr. Katja Träumner

The head of the Young Investigator Group "EDDy" at IMK-TRO has been awarded as part of the KIT annual celebration with the KIT Doctoral Award 2011 for her PhD thesis on entrainment processes at the upper edge of the boundary layer. The work is based among other things on measurements in the atmosphere with a lidar instrument.

Special information about Fukushima

Current weather forecasts and calculated dispersion of contaminated air

Disaster in Japan - impacts for nuclear facilities

Expert groups of KIT evaluate incidents in Fukushima.

THORPEX European Regional Meeting

'THORPEX European Regional Meeting' , 24-27 May 2011, at  "Karlsruher Schloss, Gartensaal"

Eyjafjallajökull ash cloud

In a joint initiative of KIT and DWD a pre-operational version of COSMO-ART Model was created.
This model provides predictions of the spread of ash particles.

more... (german)
15th UN Climate Change Conference

At the UN climate change conference the nations of the world come togehter in order to agree on a new Climate Protection Agreement.

more... (german)
10 years "Lothar"

Recent television reports with contributions from KIT give a review of the storm of the century "Lothar".

more... (german)

For the first time a tram is used as carrier for measurement equipment to make a study of air quality in an urban area.