This assessment requires best estimates of wind speed and wind direction and the problem becomes more serious in mountainous terrain sites where the most commonly used numerical models for wind flow simulation fail to predict the wind regime.
(This assessment; requires; best estimates of wind speed and wind direction; the problem becomes more serious in mountainous terrain sites) Context(This assessment requires,List([0, 24))):(the problem; becomes; more serious in mountainous terrain sites)
This assessment requires,List([0, 24))
This assessment the problem
requires becomes
best estimates of wind speed and wind direction the problem becomes more serious in mountainous terrain sites
more serious in mountainous terrain sites