Article
Environmental Sciences
I. Gutierrez-Alvarez, J. L. Guerrero, J. E. Martin, J. A. Adame, A. Vargas, J. P. Bolivar
Summary: Two radon measurement stations located north and south of a NORM repository in Southwest Europe were used to monitor radon behavior in 2018. The study found higher average concentrations in Huelva City compared to other coastal stations in southern Spain, with an average concentration of around 3.3 Bq m(-3).
ENVIRONMENTAL POLLUTION
(2021)
Article
Meteorology & Atmospheric Sciences
Lorenzo Giovannini, Silvio Davolio, Mattia Zaramella, Dino Zardi, Marco Borga
Summary: The study aims to identify the main mesoscale features and mechanisms responsible for the intense precipitation and wind storm event named Vaia that affected the eastern Italian Alps on 27-29 October 2018. It was found that the storm had two consecutive phases with strong precipitations, both driven by an intense moist southerly flow. The numerical simulations by two models, WRF and MOLOCH, captured the main characteristics of the storm but showed some underestimation of total precipitation and overestimation of wind speed in certain areas.
ATMOSPHERIC RESEARCH
(2021)
Article
Water Resources
Berina Mina Kilicarslan, Ismail Yucel, Heves Pilatin, Eren Duzenli, Mustafa Tugrul Yilmaz
Summary: This study investigates the impact of different sea surface temperature datasets on the accuracy of the Weather Research and Forecasting-Hydro system to simulate hydrological response during flood events in two regions of Turkey. Results show that SST products with higher cross-correlations, such as GHRSST and Medspiration, significantly improve flood hydrographs in both regions. Improved precipitation simulation skills of the WRF model with detailed SST representation lead to better performance in simulating hydrographs compared to observed precipitation.
HYDROLOGICAL PROCESSES
(2021)
Article
Geosciences, Multidisciplinary
Tao Xi, Xin Xu, Peng Wei, Yuan Wang, Jie Ming, Shushi Zhang, Jinfeng Ding, Abuduwaili Abulikemu
Summary: This study examines the characteristics of high winds in the Tianshan Grand Canyon (TGC) in Northwest China based on surface wind observations. It identifies three high wind indices and analyzes their occurrence patterns. The research finds that high winds in TGC are mostly northwesterly/westerly and frequently occur in spring. These findings have significant implications for understanding and predicting high wind events in the TGC region.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Civil
Shuoyu Chen, Lei Tian, Baoqing Zhang, Guosheng Zhang, Feimin Zhang, Kai Yang, Xuejin Wang, Yan Bai, Baotian Pan
Summary: The largest afforestation program in the world, the Grain for Green Program (GFGP), implemented in the Loess Plateau in China, has been shown to improve the hydrological cycle, increase precipitation and atmospheric water vapor, and partially counteract the weakening of the East Asian summer monsoon. This study quantitatively investigated the impact of the GFGP on the atmospheric water cycle and highlighted the importance of science-informed afforestation plans for carbon neutrality and sustainable ecosystem management.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Hezhen Lou, Jun Zhang, Shengtian Yang, Mingyong Cai, Xiaoyu Ren, Ya Luo, Chaojun Li
Summary: Changes in atmospheric water vapor mainly occur in the atmospheric boundary layer, and different land surfaces have subtle impacts on atmospheric water vapor contents. Accurate direct observations using radar can enhance our understanding of the movement and variation of atmospheric water vapor.
Article
Meteorology & Atmospheric Sciences
Ho-Nam Cheung, Nour-Eddine Omrani, Fumiaki Ogawa, Noel Keenlyside, Hisashi Nakamura, Wen Zhou
Summary: Atmospheric blocking is important for extreme weather events, but current climate models underestimate its frequency, particularly around the North Atlantic. This study shows that the mid-latitude Pacific oceanic front plays a crucial role in climatological Atlantic blocking activity. The front strengthens the Pacific jet, which extends towards the North Atlantic, reinforcing the Atlantic circulation response and increasing Euro-Atlantic blocking.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Agronomy
Zhenyu Zhang, Patrick Laux, Jussi Baade, Joel Arnault, Jianhui Wei, Xuejin Wang, Yukun Liu, Christiane Schmullius, Harald Kunstmann
Summary: Numerical weather and climate prediction models rely on accurate soil data to model land surface processes. However, global soil datasets show wide discrepancies due to uncertainties from soil profiles and maps. This study examines the impact of different global soil datasets on land-atmosphere interactions in southern Africa. The results show that soil texture differences have a significant effect on simulated temperature, soil moisture, surface energy fluxes, and local climatic conditions. The study emphasizes the importance of considering modeling uncertainties from soil data in land surface-atmosphere coupled modeling.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Meteorology & Atmospheric Sciences
Vijaya Kumari Kattamanchi, Yesubabu Viswanadhapalli, Hari Prasad Dasari, Sabique Langodan, Naresh Krishna Vissa, Sivareddy Sanikommu, S. Vijaya Bhaskara Rao
Summary: This study examines the impact of assimilating SCATSAT-1 surface winds in predicting tropical cyclones over the Bay of Bengal. The results show significant improvements in track and intensity predictions of cyclones, as well as enhancements in primary and secondary circulations of tropical cyclones and rainfall distributions.
ATMOSPHERIC RESEARCH
(2021)
Article
Forestry
Massimo D'Isidoro, Mihaela Mircea, Rafael Borge, Sandro Finardi, David de la Paz, Gino Briganti, Felicita Russo, Giuseppe Cremona, Maria Gabriella Villani, Mario Adani, Gaia Righini, Lina Vitali, Milena Stracquadanio, Rossella Prandi, Giuseppe Carlino
Summary: This study quantifies the impact of urban vegetation on meteorology using the WRF model. The results show that urban vegetation can lower temperatures, increase humidity, and decrease wind speeds. However, the impact of urban vegetation varies depending on the city and season.
Article
Meteorology & Atmospheric Sciences
L. K. Berg, Y. Liu, Ben Yang, Y. Qian, R. Krishnamurthy, L. Sheridan, J. Olson
Summary: The study enhanced the parameterization in the WRF model with the inclusion of the EDMF approach to better represent transport by boundary-layer eddies. Results indicate that the sensitivity to new parameters associated with the EDMF scheme is generally small in clear conditions, but becomes significant when the updraft fraction is large.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Environmental Sciences
Rene Parra, Claudia Saud, Claudia Espinoza
Summary: PM2.5 particulate matter poses a health risk. In Ecuadorian cities, burning puppets and fireworks on New Year's Eve releases high levels of PM2.5. Measurements in Cuenca showed concentrations exceeding the World Health Organization guideline. Using a simulation model, researchers found that advancing the burning time can help reduce the health effects of PM2.5 emissions on December 31.
Article
Meteorology & Atmospheric Sciences
Tian Han, Xiaoduo Pan, Xufeng Wang
Summary: This study aims to improve the simulation capability of the WRF-Chem model in simulating sand storms in Northwest China by introducing remote sensing soil moisture data. It found a significant influence of soil moisture on sand emissions during the simulation of ten sand storms, leading to enhanced simulation accuracy.
ATMOSPHERIC RESEARCH
(2021)
Article
Computer Science, Interdisciplinary Applications
Yuqi Zhang, Joshua K. Roundy, Joseph A. Santanello
Summary: Regional climate models are expected to exhibit improved skill at finer spatial resolutions, but the study found that improvements are limited solely from finer resolution, while not using the cumulus scheme at a 4-km resolution can lead to larger improvement in precipitation prediction. Object-based analysis shows better representation of spatial properties of precipitation without the cumulus scheme, highlighting deficiencies in model configurations.
ENVIRONMENTAL MODELLING & SOFTWARE
(2021)
Article
Environmental Sciences
Florian Dupuy, Gert-Jan Duine, Pierre Durand, Thierry Hedde, Eric Pardyjak, Pierre Roubin
Summary: In regions with complex topography, it is challenging to forecast local flows accurately due to coarse resolution of operational models. A study utilized an artificial neural network (ANN) as a correcting tool to significantly improve forecast accuracy of low-level winds (both speed and direction) based on Weather Research and Forecasting (WRF) model simulations.
Article
Meteorology & Atmospheric Sciences
J. J. Gomez-Navarro, C. C. Raible, J. A. Garcia-Valero, M. Messmer, J. P. Montavez, O. Martius
Summary: This study presents a new strategy for constraining extreme precipitation events based on a combination of statistical and dynamical downscaling. The results show that this strategy is suitable for precipitation extremes in the upper Aare catchment, Switzerland, although there are some limitations in identifying extreme events in summer and underestimating the sensitivity of extreme events to climate change.
Article
Meteorology & Atmospheric Sciences
Camila Gomes Martins Ramos, Haochen Tan, Pallav Ray, Jimy Dudhia
Summary: Precipitation cools the surface due to sensible heat flux, with the highest values found in the Intertropical Convergence Zone and the South Pacific Convergence Zone. The correlation between Q(P) and precipitation is not well established on land, but Q(P) can be larger than Q(SH) and Q(LH) during heavy precipitation events at shorter time scales based on in-situ buoy observations. Future research avenues related to Q(P) implications are discussed.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Mukul Tewari, Fei Chen, Jimy Dudhia, Pallav Ray, Shiguang Miao, Efthymios Nikolopoulos, Lloyd Treinish
Summary: This article investigates the spatio-temporal variability of precipitation during the extreme rainfall event in Beijing in 2012, as well as the uncertainties in short-range weather forecasts. By using high-resolution urban-aware simulations, the authors find that the microphysics parameterizations and model initialization time greatly affect the forecast accuracy. Recommendations for improvement are also proposed.
ATMOSPHERIC RESEARCH
(2022)
Article
Meteorology & Atmospheric Sciences
C. Junquas, M. B. Heredia, T. Condom, J. C. Ruiz-Hernandez, L. Campozano, J. Dudhia, J. C. Espinoza, M. Menegoz, A. Rabatel, J. E. Sicart
Summary: A multi-experiment ensemble using the WRF model was conducted in the Antisana glacier region in Ecuador to identify the best model configurations for simulating atmospheric processes. The model successfully reproduced the complex precipitation gradient between the Amazon and Andean regions, but showed overestimation in the afternoon and at night. Changing the microphysics and cumulus schemes primarily affected nighttime processes, while altering topography forcing and radiation options mainly impacted afternoon processes. Based on the findings, a 1-km resolution configuration with activated cumulus scheme was determined to be the best choice for accurate representation of cloud convection in the region.
Article
Meteorology & Atmospheric Sciences
Haochen Tan, Pallav Ray, Bradford Barrett, Jimy Dudhia, Mitchell Moncrieff, Lei Zhang, David Zermeno-Diaz
Summary: The study analyzes the impact of topography on the diurnal cycle of precipitation over the Islands of the Maritime Continent during the propagation of a Madden-Julian Oscillation event. Results show that realistic topography captures the observed diurnal cycle of precipitation better, while the absence of topography leads to a delay in the arrival of peak precipitation and a reduction in rainfall amount.
Article
Meteorology & Atmospheric Sciences
Pedro A. Jimenez, Jaemo Yang, Ju-Hye Kim, Manajit Sengupta, Jimy Dudhia
Summary: WRF-Solar is a numerical weather prediction model specifically designed for accurate solar irradiance forecasting. This study analyzes the adequacy of the National Solar Radiation Database (NSRDB) to validate and improve the performance of WRF-Solar. The study also examines the forecast errors, sensitivity to grid spacing and radiative effects of unresolved clouds in WRF-Solar. Results show that GHI retrievals have the potential to contribute to increasing the performance of WRF-Solar.
JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Zhongkuo Zhao, Xueyan Bi, Jimy Dudhia, Yali Luo, Jinbao Song, Qingtao Song, Naigeng Wu
Summary: The study investigated the responses of the atmospheric boundary layer at low latitudes (20 degrees N) to forcing by an ocean-mesoscale sea surface temperature (SST) front through ideal numerical experiments. The results showed that the responses were sensitive to the background wind speed and its direction relative to the SST front, and that constructive convergence and divergence could cause strong convergence and divergence in the boundary layer near the SST front.
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
(2022)
Article
Energy & Fuels
Ju-Hye Kim, Pedro Jimenez Munoz, Manajit Sengupta, Jaemo Yang, Jimy Dudhia, Stefano Alessandrini, Yu Xie
Summary: This study introduced the WRF-solar ensemble prediction system and a calibration method, showing improvement in forecast quality and reduction of positive bias through ensemble forecasting and analog ensemble calibration, respectively.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Meteorology & Atmospheric Sciences
Enrique Pravia-Sarabia, Amar Halifa-Marin, Juan Jose Gomez-Navarro, Laura Palacios-Pena, Pedro Jimenez-Guerrero, Juan Pedro Montavez
Summary: The study investigates the role of marine aerosols in extreme precipitation events in near-maritime locations, focusing on a specific event in Southern Spain in 2009. By simulating the event with different aerosol configurations, it is found that including prognostic aerosol concentrations improves the model's skill in reproducing extreme rainfall. Interactive aerosol simulations increase windward precipitation and decrease leeward rainfall, amplifying spatial variability along the moisture flux direction.
ATMOSPHERIC RESEARCH
(2022)
Correction
Meteorology & Atmospheric Sciences
Enrique Pravia-Sarabia, Amar Halifa-Marin, Juan Jose Gomez-Navarro, Laura Palacios-Pena, Pedro Jimenez-Guerrero, Juan Pedro Montavez
ATMOSPHERIC RESEARCH
(2022)
Article
Engineering, Civil
Hehe Ren, Jimy Dudhia, Shitang Ke, Hui Li
Summary: In this study, hurricane simulation cases were conducted to investigate the wind characteristics of hurricanes at different sea surface temperatures. The results showed a good agreement between the minimum sea surface pressure and the maximum time-averaged wind speed. The maximum tangential wind and radial inflow increased with increasing sea surface temperature. The depth of the inflow layer varied for different intensity hurricanes, and extreme updrafts were found only for intense hurricanes. The study also revealed the average surface inflow angle and the relationship between tangential velocity and radial velocity.
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2022)
Article
Engineering, Civil
Hehe Ren, Shitang Ke, Jimy Dudhia, Hui Li
Summary: This study investigated wind disasters caused by typhoons that made landfall in China from 2004 to 2020 using the radial integral method. The research analyzed the factors influencing typhoon wind disasters, verified the applicability of the method using existing data, and studied the change patterns of wind disasters before and after landfall in different regions of China. The study provides valuable insights for the assessment and prevention of typhoon wind disasters.
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2022)
Article
Environmental Sciences
Enrique Pravia-Sarabia, Juan Pedro Montavez, Amar Halifa-Marin, Pedro Jimenez-Guerrero, Juan Jose Gomez-Navarro
Summary: This study analyzes the role of aerosol concentration in the development of precipitation in a mixed phase system and the impact of different aerosol concentrations on precipitation type and amount. The results show that fixed aerosol concentrations alter the distribution of precipitation types, while interactive aerosol calculation leads to different precipitation patterns due to spatial and temporal variability in aerosol distribution.
Article
Environmental Sciences
Gines Garnes-Morales, Juan Pedro Montavez, Amar Halifa-Marin, Pedro Jimenez-Guerrero
Summary: This study aims to assess the significant impact of simulations with interactive aerosols on atmospheric dynamics over Europe during winter compared to conventional regional climate models with prescribed aerosols. The results show significant differences in two predominant weather patterns and demonstrate the impact of aerosols on different circulation types and aerosol concentrations.
Article
Environmental Sciences
Ifeanyi Chukwudi Achugbu, Ayorinde A. Olufayo, Ifeoluwa A. Balogun, Elijah A. Adefisan, Jimy Dudhia, Edward Naabil
Summary: This study validated the use of updated MCD12Q1 MODIS LULC data in the WRF model and investigated the effects of LULC change on various climatic factors over West Africa. Results showed that different LULC scenarios had complex impacts on temperature, precipitation, and other parameters, with afforestation leading to decreased temperature and increased rainfall in some areas. Further in-depth analysis of the effects on the general circulation of WA is recommended for future research.
MODELING EARTH SYSTEMS AND ENVIRONMENT
(2022)
