A5033653142- Atmospheric chemistry and aerosols
- Atmospheric and Environmental Gas Dynamics
- Climate variability and models
- Atmospheric Ozone and Climate
- Meteorological Phenomena and Simulations
- Air Quality and Health Impacts
- Atmospheric aerosols and clouds
- Vehicle emissions and performance
- Cryospheric studies and observations
- Air Quality Monitoring and Forecasting
- Climate Change Policy and Economics
- Precipitation Measurement and Analysis
- Maritime Transport Emissions and Efficiency
- Plant responses to elevated CO2
- Climate change impacts on agriculture
- Aeolian processes and effects
- Geophysics and Gravity Measurements
- Hydrology and Drought Analysis
- Hydrology and Watershed Management Studies
- Industrial Gas Emission Control
- Spectroscopy and Laser Applications
- Tropical and Extratropical Cyclones Research
- Agricultural risk and resilience
- Crop Yield and Soil Fertility
- Advanced Aircraft Design and Technologies
CICERO Center for International Climate Research
2016-2025
CMCC Foundation - Euro-Mediterranean Center on Climate Change
2023
Helmholtz-Zentrum Hereon
2023
Aristotle University of Thessaloniki
2022-2023
Royal Netherlands Meteorological Institute
2023
University of Graz
2022-2023
Karlsruhe Institute of Technology
2022-2023
Norwegian Meteorological Institute
2012-2023
Brandenburg University of Technology Cottbus-Senftenberg
2023
University of Kassel
2023
The intensity of the heaviest extreme precipitation events is known to increase with global warming. How often such occur in a warmer world however less well established, and combined effect changes frequency on total amount rain falling as much explored, spite potentially large societal impacts. Here, we employ observations climate model simulations document strong increases frequencies occurring decadal timescales. Based find that from these intense almost doubles per degree warming,...
Abstract. This paper presents a summary of the work done within European Union's Seventh Framework Programme project ECLIPSE (Evaluating Climate and Air Quality Impacts Short-Lived Pollutants). had unique systematic concept for designing realistic effective mitigation scenario short-lived climate pollutants (SLCPs; methane, aerosols ozone, their precursor species) quantifying its air quality impacts, this results in context overarching strategy. The first step was to create new emission...
Abstract Precipitation is expected to respond differently various drivers of anthropogenic climate change. We present the first results from Driver and Response Model Intercomparison Project (PDRMIP), where nine global models have perturbed CO 2 , CH 4 black carbon, sulfate, solar insolation. divide resulting changes mean regional precipitation into fast responses that scale with in atmospheric absorption slow scaling surface temperature While overall features are broadly similar between...
Abstract Here we present the first multi-model ensemble of regional climate simulations at kilometer-scale horizontal grid spacing over a decade long period. A total 23 run with $$\sim $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mo>∼</mml:mo> </mml:math> 3 km, driven by ERA-Interim reanalysis, and performed 22 European research groups are analysed. Six different models (RCMs) represented in ensemble. The compared against available high-resolution precipitation...
Rapid adjustments are responses to forcing agents that cause a perturbation the top of atmosphere energy budget but uncoupled changes in surface warming. Different mechanisms responsible for these variety climate drivers. These remain be quantified detail. It is shown rapid reduce effective radiative (ERF) black carbon by half instantaneous forcing, CO2 increase ERF. Competing tropospheric individually significant sum zero, such ERF equals stratospherically adjusted this not true other...
Abstract We investigate the climate response to increased concentrations of black carbon (BC), as part Precipitation Driver Response Model Intercomparison Project (PDRMIP). A tenfold increase in BC is simulated by nine global coupled‐climate models, producing a model median effective radiative forcing 0.82 (ranging from 0.41 2.91) W m −2 , and warming 0.67 (0.16 1.66) K globally 1.24 (0.26 4.31) Arctic. strong positive instantaneous (median 2.10 based on five models) countered negative rapid...
As the global temperature increases with changing climate, precipitation rates and patterns are affected through a wide range of physical mechanisms. The globally averaged intensity extreme also changes more rapidly than rate. While some aspects regional variation in predicted by climate models appear robust, there is still large degree inter-model differences unaccounted for. Individual drivers change initially alter energy budget atmosphere leading to distinct rapid adjustments involving...
Abstract. The concentrations of sulfate, black carbon (BC) and other aerosols in the Arctic are characterized by high values late winter spring (so-called Haze) low summer. Models have long been struggling to capture this seasonality especially associated with Haze. In study, we evaluate sulfate BC from eleven different models driven same emission inventory against a comprehensive pan-Arctic measurement data set over time period 2 years (2008–2009). consisted one Lagrangian particle...
Abstract The atmospheric methane trend is not fully understood. Here we investigate the role of main sink, natural source, and anthropogenic emissions on growth rate over last three decades using numerical models emission inventories. We find that long-term driven by increased emissions, while wetland show large variability can modify trend. influence hydroxyl radical, through nitrogen oxides carbon monoxide has modified contributed to stabilization from 2000 2007. radical increase prior...
Abstract The Earth’s energy imbalance is the net radiative flux at top-of-atmosphere. Climate model simulations suggest that observed positive trend in previous two decades inconsistent with internal variability alone and caused by anthropogenic forcing resulting climate system response. Here, we investigate contributions to using models forced sea-surface temperatures. We find effective due aerosol emission reductions has led a 0.2 ± 0.1 W m −2 decade −1 strengthening of 2001–2019 trend....
Abstract. We discuss the capability of current state-of-the-art chemistry and transport models to reproduce air quality trends interannual variability. Documenting these strengths weaknesses on basis historical simulations is essential before are used investigate future projections. To achieve this, a coordinated modelling exercise was performed in framework CityZEN European Project. It involved six regional global chemistry-transport (BOLCHEM, CHIMERE, EMEP, EURAD, OSLOCTM2 MOZART)...
Atmospheric aerosols such as sulfate and black carbon (BC) generate inhomogeneous radiative forcing can affect precipitation in distinct ways compared to greenhouse gases (GHGs). Their regional effects on the atmospheric energy budget circulation be important for understanding predicting global changes, which act top of background GHG-induced hydrological changes. Under framework Precipitation Driver Response Model Inter-comparison Project (PDRMIP), multiple models were used first time...
Abstract. Over the past few decades, geographical distribution of emissions substances that alter atmospheric energy balance has changed due to economic growth and air pollution regulations. Here, we show resulting changes aerosol ozone abundances their radiative forcing using recently updated emission data for period 1990–2015, as simulated by seven global composition models. The models broadly reproduce large-scale in surface based on observations (e.g. −1 −3 % yr−1 aerosols over USA...
Abstract Radiative forcing (RF) time series for total ozone from 1850 up to the present day are calculated based on historical simulations of 10 climate models contributing Coupled Model Intercomparison Project Phase 6 (CMIP6). In addition, RF is fields prepared as an input CMIP6 without chemistry schemes and a chemical transport model simulation. A radiative kernel constructed used derive RF. The in 2010 (2005–2014) relative 0.35 W m −2 [0.08–0.61] (5–95% uncertainty range) with both...
Abstract Observations indicate a precipitation decline over large parts of southern Africa since the 1950s. Concurrently, atmospheric concentrations greenhouse gases and aerosols have increased due to anthropogenic activities. Here we show that local black carbon organic aerosol emissions from biomass burning activities are main cause observed in African dry season last century. Near regions, global regional modelling indicates decreases 20–30%, with spatial variability. Increasing CO 2...
Quantifying the efficacy of different climate forcings is important for understanding real-world sensitivity. This study presents a systematic multimodel analysis driver efficacies using simulations from Precipitation Driver and Response Model Intercomparison Project (PDRMIP). Efficacies calculated instantaneous radiative forcing deviate considerably unity across agents models. Effective (ERF) better predictor global mean near-surface air temperature (GSAT) change. are closest to one when...
Abstract The response of the hydrological cycle to climate forcings can be understood within atmospheric energy budget framework. In this study precipitation and responses five forcing agents are analyzed using 10 models from Precipitation Driver Response Model Intercomparison Project (PDRMIP). changes split into a forcing-dependent fast temperature-driven sensitivity. Globally, when normalized by top-of-atmosphere (TOA) forcing, most sensitive strongly absorbing drivers (CO 2 , black...
Abstract Urbanization and global warming are two of the major human impacts on environment. The Urban Heat Island (UHI) effect can change precipitation patterns. Global also leads to changes in especially an increase intensity frequency extreme precipitation. With urbanization expected grow future, role UHI a warmer climate is important research question. We present results from 20-year long regional convection-permitting model simulations that include effect, run for historical future...
Abstract. In order to explore future air quality in Europe at the 2030 horizon, two emission scenarios developed framework of Global Energy Assessment including varying assumptions on climate and energy access policies are investigated with an ensemble six regional global atmospheric chemistry transport models. A specific focus is given paper assessment uncertainties robustness projected changes quality. The present work relies models giving insight into model spread. Both scale were...