Rocío Baró
ZAMG, Chemical Weather Forecast, Post-Doc
- University of Murcia, Physics, Graduate Studentadd
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The response of the climate systems to aerosols and their effect on the radiative budget of the Earth is the most uncertain climate feedback and one of the key topics in climate change mitigation. Air quality-climate studies (AQCI) are a... more
The response of the climate systems to aerosols and their effect on the radiative budget of the Earth is the most uncertain climate feedback and one of the key topics in climate change mitigation. Air quality-climate studies (AQCI) are a key, but uncertain contributor to the anthropogenic forcing that remains poorly understood. To build confidence in the AQCI studies, regional-scale integrated meteorology-atmospheric chemistry models are in demand. The main objective of the present Thesis is the characterization of the uncertainties in the climate-chemistry-aerosol-cloud-radiation system associated to the aerosol direct and indirect radiative effects caused by aerosols over Europe, employing an ensemble of fully-coupled climate and chemistry model simulations. The first topic covered deals with the microphysics parameterization configuration of an online-coupled model. The differences when using two microphysics schemes within the Weather Research and Forecasting coupled with Chemis...
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Dust intrusions from African desert regions have an impact on the whole Mediterranean Basin and its climate. Dust may cause an anomalous aerosol load in the tropospheric column and have the potential to modify cloud microphysical... more
Dust intrusions from African desert regions have an impact on the whole Mediterranean Basin and its climate. Dust may cause an anomalous aerosol load in the tropospheric column and have the potential to modify cloud microphysical properties (by aerosol-cloud interactions, ACI), thus affecting the hydrological cycle. This work analyzes the simulations run in the framework of the REPAIR Project, using the WRF-Chem model version 3.6.1. with the EURO-CORDEX 0.22o/0.44o resolution, over the whole Mediterranean Basin with the objective of quantifying the influence of including dust-radiation-clouds-precipitation interactions in a regional on-line coupled climate/chemistry model. The impact of dust interactions is assessed on several clouds and precipitation variables. Simulation results show a satisfying agreement when compared with satellite observations (MODIS) when assessing aerosol optical depth (AOD) at 550 nm and supports the skills of the model to estimate the African dust contribu...
Research Interests: Environmental Science, Climatology, Model, Aerosol, Microphysics, and 6 moreCloud, Precipitation, Modelo, Dust, NUBE, and polvo
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This paper elucidates the impact of biomass burning aerosols (BB) on surface winds for the Russian fires episode during 25 July to 15 August 2010. The methodology consists of three Weather Research and Forecasting model coupled with... more
This paper elucidates the impact of biomass burning aerosols (BB) on surface winds for the Russian fires episode during 25 July to 15 August 2010. The methodology consists of three Weather Research and Forecasting model coupled with Chemistry (WRF‐Chem) simulations over Europe differing in the inclusion (or not) of aerosol‐radiation and aerosol‐cloud interactions. The presence of BB reduces the 10 m wind speed over Russia during this fire event by 0.2 m s−1 (10%). Aerosol interactions imply a decrease of the shortwave downwelling radiation at the surface leading to a reduction of the 2 m temperature. This decrease reduces the turbulence flux, developing a more stable planetary boundary layer. Moreover, cooling favors an increase of the surface pressure over Russian area and also it extends nearby northern Europe.
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The effects of atmospheric aerosol particles over the Earth's climate mainly depend on their optical, microphysical and chemical properties, which modify the Earth radiative budget. The aerosol radiative effects can be divided into... more
The effects of atmospheric aerosol particles over the Earth's climate mainly depend on their optical, microphysical and chemical properties, which modify the Earth radiative budget. The aerosol radiative effects can be divided into direct and semi-direct effects, produced by the aerosol-radiation interactions (ARI); and indirect effects, produced by aerosol-cloud interactions (ACI). In this sense the objective of this work is to assess whether the inclusion of aerosol radiative feedbacks in the on-line coupled WRF-Chem model improves the modelling outputs over the Iberian Peninsula (IP). For that purpose, the methodology bases on the evaluation of modelled aerosol optical properties under different simulation scenarios. The evaluated data come from two WRF-Chem simulations for the IP differing in the inclusion/no-inclusion of ARI and ACI (NRF/RF simulations). The case studies cover two episodes with different aerosol types over the IP in 2010, namely a Saharan desert dust outbre...
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Research Interests: Geography and Humanities
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Research Interests: Earth Sciences and DDC
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The impact of air pollution on premature mortality in Europe and the United States (U.S.) in 2010 is modelled by a multi-model ensemble of regional models in the framework of the third phase of the Air Quality Model Evaluation... more
The impact of air pollution on premature mortality in Europe and the United States (U.S.) in 2010 is modelled by a multi-model ensemble of regional models in the framework of the third phase of the Air Quality Model Evaluation International Initiative (AQMEII3). Introducing 20% emission reductions both globally and regionally in Europe, North America and East Asia were performed in order to calculate the domestic and foreign contributions to air quality and related premature mortality. Total premature mortality was estimated to be 414 000 in Europe and 160 000 in the U.S., using multi-model mean pollutant concentrations. The number of premature mortality cases calculated using concentration inputs from different air quality models can vary by up to a factor of three. Results show that the domestic emissions have the largest impacts on premature death, while foreign sources are a minor contributor to adverse impacts of air pollution.