Results 61 to 70 of about 50,845 (215)

Potential patterns of fall armyworm seasonal migration in West Africa modeled with atmospheric trajectory analyses

Pest Management Science, EarlyView.
Migratory fall armyworms in West African breeding habitats showed clear seasonal movements: shifting southwest from January to May, turning northeast in June to July, and returning southwest from August to December. Abstract BACKGROUND The migratory invasive species fall armyworm (Spodoptera frugiperda, FAW) has established year‐round populations in ...
Fan‐Qi Gao, Xue‐Yan Zhang, Rosina Kyerematen, Gao Hu, Regan Early, Jason W. Chapman   +5 more
wiley   +1 more source

Representation of Soil Moisture Feedbacks during Drought in NASA Unified WRF (NU-WRF)

Journal of Hydrometeorology, 2013
Abstract Positive soil moisture–precipitation feedbacks can intensify heat and prolong drought under conditions of precipitation deficit. Adequate representation of these processes in regional climate models is, therefore, important for extended weather forecasts, seasonal drought analysis, and downscaled climate change projections. This
Benjamin F. Zaitchik, Joseph A. Santanello, Sujay V. Kumar, Christa D. Peters-Lidard   +3 more
openaire   +1 more source

Spatially Sparse Precoding in Millimeter Wave MIMO Systems

, 2013
Millimeter wave (mmWave) signals experience orders-of-magnitude more pathloss than the microwave signals currently used in most wireless applications.
Abu-Surra, Shadi, Ayach, Omar El, Heath Jr, Robert W., Pi, Zhouyue, Rajagopal, Sridhar   +4 more
core   +1 more source

The role of soil moisture in the inland penetration of Indian monsoon low‐pressure systems

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We use the Advanced Weather Research and Forecasting model to examine the role of soil moisture in the inland penetration of Indian monsoon low‐pressure systems (LPSs). We find that LPSs penetrate deeply into India despite a dry land surface; however, their inland penetration is adversely affected when there is a reduction in the total surface heat ...
Akshay Deoras, Kieran M. R. Hunt, Andrew G. Turner   +2 more
wiley   +1 more source

Sensitivity of the surface temperature to changes in total solar irradiance calculated with the WRF model

Geofísica Internacional, 2014
En este trabajo se estima la sensibilidad de la temperatura del modelo WRF a cambios en la Radiación Solar Total (RST). Las simulaciones se realizaron para una región centrada en el Atlántico norte, incluyendo partes del Este de Norteamérica, Oeste de ...
Carolina Cipagauta, Blanca Mendoza, Jorge Zavala-Hidalgo   +2 more
doaj   +1 more source

Data management and analysis with WRF and SFIRE

, 2012
We introduce several useful utilities in development for the creation and analysis of real wildland fire simulations using WRF and SFIRE. These utilities exist as standalone programs and scripts as well as extensions to other well known software.
Beezley, Jonathan, Kochanski, Adam K., Mandel, Jan, Martin, Mavin, Rosen, Paul   +4 more
core   +1 more source

Mesoscale and microphysical processes leading to extreme hourly rainfall prior to the merger of two mesoscale convective systems in Central China

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Short‐term extreme rainfall can be produced by the variation of low‐level warm moist airflow during mesoscale convective systems (MCSs) approaching another. The cold outflow of the rapidly moving MCS intensifies the warm moist airflow in front, enhancing the convergence and ascending motion in the quasi‐stationary MCS.
Xiaoyu Gao, Yali Luo, Jinfang Yin, Chong Wu   +3 more
wiley   +1 more source

A composite‐loss graph neural network for the multivariate post‐processing of ensemble weather forecasts

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The dual graph neural network (dualGNN), trained with a composite loss combining the energy score (ES) and variogram score (VS), consistently outperformed models optimized solely for ES or the continuous ranked probability score in the multivariate setting, as well as empirical copula approaches.
Mária Lakatos
wiley   +1 more source

Investigating the relationship between the frequency of thunderstorms and temperature trend in Mashhad

تحقيقات جغرافيايی, 2017
This study examined the relationship between frequency of thunderstorms and the mean temperature in the city of Mashhad. For this purpose, the average of monthly and annual temperatures data and average of monthly and annual frequency of thunderstorms ...
Seyyedeh Mahboobeh Moosavi, Azar Zarrin, Abbas Mofidi, Seyyedeh Fatemeh Hosseini   +3 more
doaj  

Assessing the role of urban blue space in summer outdoor thermal regulation in northwestern Europe: A hectometric Weather Research and Forecasting modelling on idealized urban landscape

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Using hectometric Weather Research and Forecasting simulations, we examine how urban blue spaces mitigate extreme summer heat in northwestern European cities through neighbourhood‐scale cooling mechanisms. Results show horizontal advection dominates cooling by mixing cooler air from waterbodies with warmer urban air, providing ∼50W·m−2$$ \sim 50\kern0 ...
Xuan Chen, Srinidhi Gadde, Arjan Droste, Gert‐Jan Steeneveld, Miriam Coenders‐Gerrits, Remko Uijlenhoet   +5 more
wiley   +1 more source