The importance of meteorological scales to forecast air pollution scenarios on coastal complex terrain

Palau, J. L.; Pérez-Landa, G.; Diéguez, J. J.; Monter, C.; Millán, M.

doi:10.5194/acp-5-2771-2005

Cited by 49 publications

(47 citation statements)

References 47 publications

(52 reference statements)

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“…Nevertheless, as only surface variables are analysed in the current work, we strongly believe that the model top employed is adequate to fulfill the purpose of this study. Furthermore, we must remark that, in terms of temperature and wind speed and direction, the results found in the present study are comparable to those found in other studies using additional vertical levels and reaching a higher model top (Palau et al, 2005;Pérez-Landa et al, 2007). …”

Section: Introductionsupporting

confidence: 80%

“…The Kuo- (Molinari, 1985), whereas grids 2 and 3 utilizes explicit convection only. This convective scheme has been adopted based on previous studies performed within the area of study (Palau et al, 2005;Pérez-Landa et al, 2007). Finally, the LEAF-2 soilvegetation surface scheme was used to calculate sensible and latent heat fluxes exchanged with the atmosphere, using prognostic equations for soil moisture and temperature (Walko et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

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Real-time weather forecasting in the Western Mediterranean Basin: An application of the RAMS model

Gómez

Caselles

Estrela

2014

Atmospheric Research

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Moreover, due to the physical complexity of the area of study, the model presents different degree of accuracy between coastal and inland stations. Precipitation has also been verified by means of yes/no contingency tables as well as scatter plots. These tables have been built using 4 specific thresholds that have permitted to compute some categorical statistics. From the results found, it is shown that the precipitation forecast in the area of study is in general over-predicted, but with marked differences between the seasons of the year. Finally, dividing the available data by season of the year, has permitted us to analyse differences in the observed patterns for the magnitudes mentioned above. These results have been used to better understand the behaviour of the RAMS model within the Valencia Region.

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Section: Introductionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Real-time weather forecasting in the Western Mediterranean Basin: An application of the RAMS model

Gómez

Caselles

Estrela

2014

Atmospheric Research

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“…The RAMS model (Pielke et al, 2002;Cotton et al, 2003) has been used at the CEAM Foundation for different research studies (Salvador et al 1997;Salvador et al, 1999;Gómez-Tejedor et al, 1999;Palau et al, 2005;Pastor et al, 2001;Pérez-Landa et al, 2007). The results obtained have provided us with the necessary know-how to develop and implement a meteorological forecasting system based on running the RAMS model operationally Gómez et al, 2010).…”

Section: Ceam-rams Real-time Forecasting Systemmentioning

confidence: 99%

Operational forecasting of daily summer maximum and minimum temperatures in the Valencia Region

2013

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ABSTRACT.Extreme temperature events have a great impact on human society. Thus, knowledge of summer temperatures can be very useful both for the general public and for organisations whose workers operate in the open. An accurate forecasting of summer maximum and minimum temperatures could help to predict heat-wave conditions and permit the implementation of strategies aimed at minimizing the negative effects that high temperatures have on human health. The objective of this work is to evaluate the skill of the RAMS model in determining daily summer maximum and minimum temperatures in the Valencia Region. For this, we have used the real-time configuration of this model currently running at the CEAM Foundation. This operational system is run twice a day, and both runs have a three-days forecast range. To carry out the verification of the model in this work, the information generated by the system has been broken into individual simulation days for a specific daily run of the model. Moreover, we have analysed the summer forecast period agreement between observed and simulated maximum temperatures, with RMSE in general near 2 ºC both for coastal and inland stations. For this parameter, the model shows a negative bias around -1.5 ºC in the coast while the opposite trend is observed inland. In addition, RAMS also shows good results in forecasting minimum temperatures for coastal locations, with bias lower than 1 ºC and RMSE below 2 ºC. However, the model presents some difficulties for this parameter inland, where bias higher than 3 ºC and RMSE of about 4 ºC have been found. Besides, there is little difference in both temperatures forecasted within the two daily RAMS cycles and that RAMS is very stable in maintaining the forecast performance at least for three forecast days.

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“…More recently, Palau et al (2005) have highlighted the importance of the different meteorological scales for air quality studies in the coastal region, showing how surface observations do not always reflect the vertical distribution in the atmospheric column.…”

Section: Introductionmentioning

confidence: 99%

On the complexity of the boundary layer structure and aerosol vertical distribution in the coastal Mediterranean regions: a case study

Pace¹,

Junkermann

Vitali³

et al. 2015

Tellus B: Chemical and Physical Meteorology

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A B S T R A C TThe planetary boundary layer structure in the coastal areas, and particularly in complex orography regions such as the Mediterranean, is extremely intricate. In this study, we show the evolution of the planetary boundary layer based on in situ airborne measurements and ground-based remote sensing observations carried out during the MORE (Marine Ozone and Radiation Experiment) campaign in June 2010. The campaign was held in a rural coastal Mediterranean region in Southern Italy. The study focuses on the observations made on 17 June. Vertical profiles of meteorological parameters and aerosol size distribution were measured during two flights: in the morning and in the afternoon. Airborne observations were combined with ground-based LIDAR, SODAR, microwave and visible radiometer measurements, allowing a detailed description of the atmospheric vertical structure. The analysis was complemented with data from a regional atmospheric model run with horizontal resolutions of 12, 4 and 1 km, respectively; back-trajectories were calculated at these spatial resolutions. The observations show the simultaneous occurrence of dust transport, descent of mid-tropospheric air and sea breeze circulation on 17 June. Local pollution effects on the aerosol distribution, and a possible event of new particles formation were also observed. A large variability in the thermodynamical structure and aerosol distribution in the flight region, extending by approximately 30 km along the coast, was found. Within this complex, environment-relevant differences in the back-trajectories calculated at different spatial resolutions are found, suggesting that the description of several dynamical processes, and in particular the sea breeze circulation, requires high-resolution meteorological analyses. The study also shows that the integration of different observational techniques is needed to describe these complex conditions; in particular, the availability of flights and their timing with respect to the occurring phenomena are crucial.

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The importance of meteorological scales to forecast air pollution scenarios on coastal complex terrain

Cited by 49 publications

References 47 publications

Real-time weather forecasting in the Western Mediterranean Basin: An application of the RAMS model

Real-time weather forecasting in the Western Mediterranean Basin: An application of the RAMS model

Operational forecasting of daily summer maximum and minimum temperatures in the Valencia Region

On the complexity of the boundary layer structure and aerosol vertical distribution in the coastal Mediterranean regions: a case study

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