211 research outputs found
Ecoprocesses. A need and a requirement
Cleaner production is a means of applying in a continuous manner a preventive and integrated environmental strategy aimed at processes and product
Characterization of coal power plants plume dynamics under typical synoptic conditions over the Iberian Peninsula
This work describes the pollution plumes of seven Spanish
coal power plants under the most typical meteorological conditions
that affect the Iberian Peninsula at synoptic scale. The aim is to
understand how meteorology modulates the plume dynamics (length,
altitude, orientation) and their contribution to NO2 and SO2 surface
concentration. Using the BSC-ES operational air quality forecasting
system (CALIOPE-AQFS), the behavior of the plumes is analyzed for
a representative day of each of the six most common synoptic
situations. The results show that the plumes from Atlantic facilities
are mainly driven by synoptic conditions whereas for power plants
located over the Mediterranean and on mountainous regions,
mesoscale dynamics dominate. Moreover, when the injection of the
pollutants is done within the planetary boundary layer there is an
increase in the NO2 and SO2 surface concentrations close to (<15-20
km) the sources
Effect of terrain relief on dust transport over complex terrains in West Asia
This work investigates the impact of orography on dust transport using the multi-scale NMMB/BSC-Dust model. For this purpose, two model simulations at horizontal resolutions of 0.03º x 0.03º (Low-resolution; LR) and 0.3º x 0.3º (High-resolution; HR) are performed and analysed covering two intense dust storms that occurred in West Asia in March 2012. Differences between both simulations emerge when the dust storms reach the south and west Arabian Peninsula where its complex topography affected meteorology and dust fields in many ways. The HR simulation is better than the LR simulation at reproducing the topography and its topographic effects on meteorology, such as developing orographic clouds, wind speed bias reduction under the dust flows (larger than 5 m/s) and more accurate wind directions, as well as on dust fields, such as a more realistic representation of dust channeling/blocking. Consequently, it improves dust forecasts in the vicinity of complex terrains
Evaluation of modelling systems in high resolution to assess the air pollutant impacts on human health
Nowadays the modelling of systems in high resolution
is being used for air quality and other forecasting applications,
where a spatial area is related with different interrelated
variables that could be displayed on a map. This area is usually
represented by global domains (hundred to thousand of square
km); when smaller regions need to be represented, a high
resolution modelling system can be used, these systems goes
from one square km to dozen of square km, health is one of these
issues where this kind of resolution can be used. In Europe, Asia,
North America, South America and other countries, health
problems related with the air pollution and climate change is a
concern for individuals and world organizations like the WHO;
today studies show the relation between morbidity and mortality
rates, air pollution and effects on human health; these
modelling systems in high resolution help us to simulate
scenarios and propose solutions to this problematic. So the
objective of this work is to evaluate the system performance
WRF – CMAQ and CALIOPE on high resolution (4 km x 4 km)
to determine air pollutant impacts of PM10, PM2.5, Ozone, NO2
and SO2 on population, using BenMAP for assess impact on
health. The methodology suggested is the time series analysis of
two years of hospital admissions, morbidity and mortality rates
and the air quality forecasting of the cities selected, previously
modelled in WRF, CMAQ and CALIOPE; after that, the
Response Functions (DRF/ERF) to determine the impacts on
health and the BenMAP software will be used. It is expecting
find the scenarios that could decrease the mortality and
morbidity rates in diseases like lung cancer, chronic respiratory
obstructive disease, asthma, and the acute respiratory diseases
in adults and children under ten years old
The ‘WMO Sand and Dust Warning Advisory and Assessment System’ Program
Comunicación presentada en: V Reunión Española de Ciencia y TecnologÃa de Aerosoles – RECTA 2011 celebrada del 27 al 29 de junio de 2011 en CIEMAT, Madrid.Large amounts of sand and dust are continually
lifted from bare, dry soils and transported through the atmosphere
affecting regions hundreds to thousands of kilometers
away. For countries in and downwind of arid regions, airborne
sand and dust present serious risks to the environment, human
health and economy. The World Meteorological Organization
(WMO) has taken the lead with international partners to develop
and implement a Sand and Dust Storm Warning Advisory
and Assessment System (SDS-WAS). The program is
organized around a Regional Center for Asia and a Regional
Centre for Northern Africa, Middle East and Europe. The
Regional Centre for Northern Africa, Middle East and Europe,
set in Barcelona, is hosted by the Barcelona Supercomputing
Center-Centro Nacional de Supercomputación (BSCCNS)
and the Meteorological State Agency from Spain
(AEMET). Its first objective is to lead the development and
implementation of a comprehensive system for mineral dust
observation and forecast in the region, with special emphasis
on extreme sand and dust events. The second objective of the
Regional Centre is to facilitate user access to information. It
manages a web-based portal for user access to value-added
observational and forecast products as well as sources of basic
information: in particular, the portal provides the National
Meteorological and Hydrological Services with the necessary
input to issue dust-related early warnings. The third objective
is to build capacity of countries to use observations, analysis
and forecasts provided by the WMO SDS-WAS programme
Regional Center for Northern Africa, Middle East and Europe of the WMO Sand and Dust Storm Warning Advisory and Assessment Sytem: activity report 2010-2012
This report presents the Center’s activities in the 2010-2012 period. It reports on its efforts to build capacity in the region and to develop user services to reduction of adverse impacts of dust
in countries heavily impacted by dust storms. There remain important SDS-WAS research issues to be considered and it is hoped that the Center will continue to play a coordinating role in
addressing these. These research topics include the assimilation of observations in numerical dust prediction models; role of dust chemical/mineral composition on health and environment; direct and
indirect interactions of dust and the atmosphere; introduction of new generation of measurements (e.g. ceilometers) to better monitor dust process
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