A5069260978- Meteorological Phenomena and Simulations
- Climate variability and models
- Wind and Air Flow Studies
- Solar Radiation and Photovoltaics
- Atmospheric aerosols and clouds
- Wind Energy Research and Development
- Fire effects on ecosystems
- Atmospheric and Environmental Gas Dynamics
- Seismic Imaging and Inversion Techniques
- Energy Load and Power Forecasting
- Atmospheric chemistry and aerosols
- Plant Water Relations and Carbon Dynamics
- Reservoir Engineering and Simulation Methods
- Aeolian processes and effects
- Landslides and related hazards
- Seismic Waves and Analysis
- Oceanographic and Atmospheric Processes
- Tropical and Extratropical Cyclones Research
- Ocean Waves and Remote Sensing
- Solar and Space Plasma Dynamics
- Integrated Energy Systems Optimization
- Air Quality Monitoring and Forecasting
- Comparative International Legal Studies
- Cryospheric studies and observations
- Hydraulic Fracturing and Reservoir Analysis
NSF National Center for Atmospheric Research
2016-2025
University of the Basque Country
2025
Research Applications (United States)
2015-2024
Universidad de Salamanca
2023
Instituto de Investigación Biomédica de Málaga
2022
Andalusian Centre for Nanomedicine and Biotechnology
2022
Universidad de La Laguna
2022
University Corporation for Atmospheric Research
2020
Research Applications Laboratory
2014-2019
American Meteorological Society
2019
Abstract This study summarizes the revision performed on surface layer formulation of Weather Research and Forecasting (WRF) model. A first set modifications are introduced to provide more suitable similarity functions simulate evolution under strong stable/unstable conditions. second changes incorporated reduce or suppress limits that imposed certain variables in order avoid undesired effects (e.g., a lower limit u*). The lead consistent covers full range atmospheric stabilities. turbulent...
Abstract The Weather Research and Forecasting (WRF) model presents a high surface wind speed bias over plains valleys that constitutes limitation for the increasing use of several applications. This study attempts to correct this by parameterizing effects unresolved topographic features exert momentum flux. proposed parameterization is based on concept sink term makes standard deviation subgrid-scale orography as well Laplacian field. Both drag generated terrain possibility an increase in...
Abstract WRF-Solar is a specific configuration and augmentation of the Weather Research Forecasting (WRF) Model designed for solar energy applications. Recent upgrades to WRF contribute making model appropriate power forecasting comprise 1) developments diagnose internally relevant atmospheric parameters required by industry, 2) improved representation aerosol–radiation feedback, 3) incorporation cloud–aerosol interactions, 4) cloud–radiation feedback. The are presented together with...
Abstract The ability of the Weather Research and Forecasting (WRF) model to reproduce surface wind direction over complex terrain is examined. A simulation spanning a winter season at high horizontal resolution 2 km compared with records from observational network located in northeastern Iberian Peninsula. previous evaluation has shown WRF speed region once effects subgrid-scale topography are parameterized. Hence, current investigation complements findings, providing information about...
Abstract Mesoscale numerical weather prediction models using fine-grid [ O (1) km] meshes for forecasting, environmental assessment, and other applications capture aspects of larger-than-grid-mesh size, convectively induced secondary circulations (CISCs) such as cells rolls that occur in the convective planetary boundary layer (PBL). However, 1-km grid spacing is too large simulation interaction CISCs with smaller-scale turbulence. The existence also violates neglect horizontal gradients...
Abstract The primary goal of the Second Wind Forecast Improvement Project (WFIP2) is to advance state-of-the-art wind energy forecasting in complex terrain. To achieve this goal, a comprehensive 18-month field measurement campaign was conducted region Columbia River basin. observations were used diagnose and quantify systematic forecast errors operational High-Resolution Rapid Refresh (HRRR) model during weather events particular concern forecasting. Examples such are cold pools, gap flows,...
Abstract As wind farms grow in number and size worldwide, it is important that their potential impacts on the environment are studied understood. The Fitch parameterization implemented Weather Research Forecasting (WRF) Model since version 3.3 a widely used tool today to study such impacts. We identified two issues related way added turbulent kinetic energy (TKE) generated by farm treated WRF with parameterization. first issue simple “bug” code, second excessive value of coefficient, called...
Abstract The use of mesoscale modeling to reproduce the power deficits associated with wind turbine wakes in an offshore environment is analyzed. study based on multiyear (3 years) observational and results at Horns Rev farm. simulations are performed Weather Research Forecasting model configured a high horizontal resolution 333 m over Rev. turbines represented as elevated momentum sink source turbulent kinetic energy. Composites different atmospheric conditions extracted from both observed...
Abstract The 2020 wildfire season (May through December) in the United States was exceptionally active, with National Interagency Fire Center reporting over 10 million acres ( <?CDATA $\gt$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mo>></mml:mo> </mml:math> 40 000 km 2 ) burned. During September events, large concentrations of smoke particulates were emitted into atmosphere. As a result, responsible for ∼10%–30% reduction solar power production...
Abstract This study analyzes the daily-mean surface wind variability over an area characterized by complex topography through comparing observations and a 2-km-spatial-resolution simulation performed with Weather Research Forecasting (WRF) model for period 1992–2005. The evaluation focuses on performance of to reproduce within subregions identified from 1999–2002 in previous study. By observations, results show ability WRF dynamical downscaling region terrain. higher spatiotemporal...
Abstract As integration of solar power into the national electric grid rapidly increases, it becomes imperative to improve forecasting this highly variable renewable resource. Thus, a team researchers from public, private, and academic sectors partnered develop assess new system, Sun4Cast. The partnership focused on improving decision-making for utilities independent system operators, ultimately resulting in improved stability cost savings consumers. project followed value chain approach...
ABSTRACT This work presents a characterization of the surface wind climatology over Iberian Peninsula ( IP ). For this objective, an unprecedented observational database has been developed. The covers period 6 years (2002–2007) and consists hourly speed direction data recorded at 514 automatic weather stations. original observations underwent quality control process to remove rough errors from set. In first step, annual seasonal mean behaviour field are presented. analysis shows high spatial...
The performance of the Weather Research and Forecasting (WRF) model to reproduce surface wind circulations over complex terrain is examined. atmospheric evolution simulated using two versions WRF during an 13 year period (1992 2005) a region located in northeast Iberian Peninsula. A high horizontal resolution 2km used provide accurate representation features. multiyear evaluation focuses on analysis accuracy displayed by simulations field six typical patterns (WPs) identified area previous...
The shortwave radiative impacts of unresolved cumulus clouds are investigated using 6-h ensemble simulations performed with the WRF-Solar Model and high-quality observations over contiguous United States for a 1-yr period. ensembles use stochastic kinetic energy backscatter scheme (SKEBS) to account implicit model uncertainty. Results indicate that parameterizing effects both deep shallow is necessary largely reduce (55%) systematic overprediction global horizontal irradiance. Accounting...
Abstract Generating accurate weather forecasts of planetary boundary layer (PBL) properties is challenging in many geographical regions, oftentimes due to complex topography or horizontal variability in, for example, land characteristics. While recent advances high-performance computing platforms have led an increase the spatial resolution numerical prediction (NWP) models, gridcell spacing (Δ x ) regional-scale NWP models currently fall within are beginning approach gray zone (i.e., Δ ≈...
Abstract Meteorological data of good quality are important for understanding both global and regional climates. In this respect, great efforts have been made to evaluate temperature- precipitation-related records. This study summarizes the evaluations date wind speed direction records acquired at 41 automated weather stations in northeast Iberian Peninsula. Observations were from 1992 2005 a temporal resolution 10 30 min. A assurance system was imposed screen 1) manipulation errors...
The importance of land‐surface processes within Regional Climate Models for accurately reproducing the present‐day climate is well known. However, their role when projecting future still poorly reported. Hence, this work assesses influence processes, particularly contribution soil moisture, changes temperature, precipitation and wind over a complex area as Iberian Peninsula, which, in addition, shows great sensitivity to change. main signals are found summer season, results indicate...
Abstract The level‐set method is typically used to track and propagate the fire perimeter in wildland models. Herein, a high‐order using fifth‐order WENO scheme for discretization of spatial derivatives third‐order explicit Runge‐Kutta temporal integration implemented within Weather Research Forecasting model physics package, WRF‐Fire. algorithm includes solution an additional partial differential equation reinitialization. accuracy fire‐front shape rate spread uncoupled simulations...
Abstract The wind stress formulation in an atmospheric model over shallow waters is investigated using year-long observations of the profile within first 100 m atmosphere and mesoscale simulations. experiments use a range planetary boundary layer parameterizations to quantify uncertainty related turbulent closure assumptions thus isolate dominant influence surface roughness formulation. Results indicate that positive speed bias exists when common open-ocean formulations for are adopted...
Abstract The Sun4Cast solar power forecasting system, designed to predict irradiance and generation at farms, is composed of several component models operating on both the nowcasting (0–6 h) day-ahead forecast horizons. different include a statistical model (StatCast), two satellite-based [the Cooperative Institute for Research in Atmosphere Nowcast (CIRACast) Multisensor Advection-Diffusion (MADCast)], numerical weather prediction (WRF-Solar). It important better understand assess strengths...
Abstract Wind energy applications including wind resource assessment, power forecasting, and plant optimization require high-resolution mesoscale simulations. High resolution simulations are essential for accurate characterization of atmospheric flows over heterogeneous land use complex terrain. Under such conditions, the assumption grid-cell homogeneity, used in one-dimensional planetary boundary layer (1D PBL) parameterizations, breaks down. However, most numerical weather prediction (NWP)...