Results 101 to 110 of about 6,481 (220)
We downscale CanESM2 with the Regional Climate Model version 4 (20 km) and evaluate against 15 stations to derive monthly PET (Hargreaves–Samani) and SPEI for northeastern Iran (1990–2009, 2040–2059, 2080–2099). Results show robust PET increases and a shift toward more negative monthly SPEI—especially April–September—indicating earlier onset and longer
Nasrin Salehnia +6 more
wiley +1 more source
Abstract Accurate direct measurements of coccolithophore particulate inorganic and organic carbon ratios (PIC/POC) are crucial for understanding the physiology and role these microbes play in global ocean carbon flux. Direct measurements of POC are commonly obtained by acid fuming or applying acid directly to filters to dissolve PIC (CaCO3) prior to CN
Madison B. Cox +2 more
wiley +1 more source
ABSTRACT With the rapid expansion of China's wind power industry, the local climatic impacts of large‐scale wind farms, particularly in arid and semi‐arid regions, have attracted increasing attention. This study investigates the effects of the Huitengxile wind farm in Inner Mongolia, which hosts over 1,200 wind turbines, using high‐resolution numerical
Xiashu Su, Entao Yu, Dongwei Liu
wiley +1 more source
Abstract The representation of low clouds and precipitation remains a major source of uncertainty in Earth System Models (ESMs), particularly due to challenges in representing their sub‐grid variability and scale‐dependent sampling. This study evaluates the performance of preliminary simulations from the Large‐Eddy Simulation (LES) Atmospheric ...
Jiakun Liang +6 more
wiley +1 more source
Reports demonstrate that floods are among the most prevalent and deadliest natural disasters affecting 520 million people annually. The present study seeks to evaluate flood forecasting using the weather research and forecasting (WRF) model and the ...
Mohammad Reza Goodarzi +3 more
doaj +1 more source
Formulation and Implementation of a Dynamic Roughness Length for Improved Surface Wind Speeds in WRF
Abstract Accurate near‐surface winds from the Weather Research and Forecasting (WRF) model are essential for wind‐energy applications, yet persistent biases remain that depend on terrain, season, and land cover. This study develops and evaluates an observation‐informed, time‐varying aerodynamic roughness length for WRF. The roughness length is inferred
S. Srivastava, K. R. Schell
wiley +1 more source
Evaluating Fire Indices for Fire Ignition and Spread Rate in the Western United States
Abstract Wildfires are complex events that are challenging to model. Researchers and land managers often rely on fire indices as a proxy of fire risk in operational forecasts and future projections. However, in the scientific literature, the choice of which fire index to use is often arbitrary and not tied to specific fire behaviors. Here, we provide a
B. Wang +8 more
wiley +1 more source
INVESTIGATION OF DUST SCHEMES IN THE MODEL WRF/CHEM
Introduction: In this study, the dust schemes implemented in the model WRF/Chem have been investigated for a severe dust storm as a case study over the Middle East. Materials and methods: There are three main dust schemes in the model WRF/Chem, which are named GOCART, AFWA, and UoC.
Amirhossein Nikfal +2 more
openaire +1 more source
Implementation of the WRF-ARW prognostic model on the Grid [PDF]
The numerical weather prediction models demand large execution time and resource allocation ; therefore we need large parallel computation facilities, like the grid systems, in order to execute them. In this paper the implementation of the Advanced Weather Research and Forecasting (WRF-ARW) model on the SEEGRID-SCI grid infrastructure is presented. The
Davidović, Davor, Skala, Karolj
openaire +1 more source
Advances in the WRF model for convection-resolving forecasting
Abstract. The Weather Research and Forecasting (WRF) Model has been designed to be an efficient and flexible simulation system for use across a broad range of weather-forecast and idealized-research applications. Of particular interest is the use of WRF in nonhydrostatic applications in which moist-convective processes are treated explicitly, thereby ...
openaire +4 more sources

