Validation of trends in the surface wind field over the Mozambique channel

1992 ◽  
Vol 12 (8) ◽  
pp. 829-838 ◽  
Author(s):  
Grant R. Bigg
Keyword(s):  
Wind Field ◽  
Surface Wind ◽  
Mozambique Channel ◽  
Surface Wind Field

The Effects of Vertical Stratification and Land Use Data on Numerical Simulation of Wind Energy Resources

2014 ◽  
Vol 535 ◽  
pp. 135-140
Author(s):  
Yuan Chang Deng ◽  
Zhen Cao Zou
Keyword(s):  
Numerical Simulation ◽  
Land Use ◽  
Wind Field ◽  
Wind Profile ◽  
Surface Wind ◽  
Wrf Model ◽  
Vertical Stratification ◽  
Near Surface ◽  
Wind Field Simulation ◽  
Surface Wind Field

By adjusting the distribution of vertical layers and increasing its number in WRF model, this paper mainly studies the effects of vertical stratification on the near surface wind field and vertical profile simulation. The test outcomes show that moderately increasing vertical layers can effectively improve the near surface wind field simulation results, while it has little influence on the numeral and changing trend of high vertical wind profile. Considering both accuracy and efficiency, it is recommended to set 10~15 layers below 300m. On the basis of this research, instead of USGS data by using the MODIS_30S data, the data underlying surface land in Shenzhen and HK area are updated. Comparative results between the two schemes, due to the roughness and drag coefficient of difference types of surface are not identical; the surface data has a significant impact on wind field and wind profile simulation. Using the MODIS land use data which is more consistent with the actual situation can improve the accuracy of numerical simulation.

scholarly journals Dominant Regimes of the Ross Ice Shelf Surface Wind Field during Austral Autumn 2005

2007 ◽  
Vol 46 (11) ◽  
pp. 1933-1955 ◽  
Author(s):  
Mark W. Seefeldt ◽  
John J. Cassano ◽  
Thomas R. Parish
Keyword(s):  
Wind Field ◽  
Surface Wind ◽  
Wind Regime ◽  
Ice Shelf ◽  
Sea Level Pressure ◽  
Ross Ice Shelf ◽  
Pressure Fields ◽  
Wind Regimes ◽  
Surface Wind Field ◽  
Austral Autumn

Abstract An analysis of the surface wind field across the Ross Ice Shelf, Antarctica, is conducted for austral autumn 2005. The airflow is divided into dominant wind regimes identifying similar wind patterns and the associated typical atmospheric forcing. The results of previous research and a seasonal analysis of the recently expanded network of automatic weather stations in the Ross Ice Shelf region are used to define the dominant wind regimes. Events composing each wind regime are identified by matching wind speed and wind direction observations at several automatic weather station sites for durations of at least 10 h. The four different dominant wind regimes are barrier wind, strong katabatic, weak katabatic, and light wind. Each wind regime is studied through the use of wind rose plots and sea level pressure fields from the Antarctic Mesoscale Prediction System. The sea level pressure fields are used to characterize the forcing of the surface wind field by synoptic pressure gradients. The four dominant wind regimes result in classifying less than 50% of the total hours for austral autumn 2005. The results indicate that previous studies of the Ross Ice Shelf surface wind field, focusing on katabatic winds and barrier winds, represent less than one-half of the observed winds. This study provides a better understanding of the composition of the surface wind field in Antarctica and more insight into the characteristics of the Ross Ice Shelf airstream.

scholarly journals Spatial and temporal variability of sea breezes and synoptic influences over the surface wind field of the Yucatán Peninsula

2020 ◽  
Vol 33 (2) ◽  
pp. 123-142 ◽  
Author(s):  
Miguel A. Cahuich-López ◽  
Ismael Mariño-Tapia ◽  
Alejandro José Souza ◽  
Gerardo Gold-Bouchot ◽  
Mark Cohen ◽  
...  
Keyword(s):  
Temporal Variability ◽  
Wind Field ◽  
Yucatan Peninsula ◽  
Surface Wind ◽  
Spatial And Temporal Variability ◽  
Sea Breezes ◽  
Yucatán Peninsula ◽  
Surface Wind Field
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