Search Results

You are looking at 1 - 3 of 3 items for :

  • Radiative fluxes x
  • Terrain-Induced Rotor Experiment (T-Rex) x
  • Journal of Applied Meteorology and Climatology x
  • All content x
Clear All
C. David Whiteman, Sebastian W. Hoch, and Gregory S. Poulos

radiation is thus seen as a proxy measurement of the surface radiating temperature during the period of temperature rise and fall, with the presence of the temperature rise and its subsequent fall indicated by a rise and fall of net radiation. A downward-directed sensible heat flux of 10–30 W m −2 occurred during the cooling period before the temperature rise. The warming episode is marked by the rapid increase in downward turbulent sensible heat flux triggered by an increased wind shear at the top of

Full access
Juerg Schmidli, Gregory S. Poulos, Megan H. Daniels, and Fotini K. Chow

diurnal cycles in surface sensible heat fluxes. Along-valley and valley–plain temperature differences can be produced by at least three factors: radiative differences, differences in the conversion rate of net radiation to sensible heat flux, and by the valley volume effect ( Whiteman 2000 ). While the first two factors are attributed primarily to differences in land surface properties, they may also be influenced by the thermally induced flows themselves ( De Wekker et al. 1998 ). Much attention has

Full access
Laurence Armi and Georg J. Mayr

higher than at the valley station. Wind speeds decrease as gap overflow is undercut by air flowing down the slopes and down Owens Valley. The strong nocturnal radiative cooling in the valley finally provides an air mass that is colder than the synoptically advected air mass flowing through the gap. WOW data from around 2130 LST (0530 UTC) in Fig. 6c again resolve the spatial details of the flow near the surface. In the valley, flow has switched direction to northerly downvalley flow independent of

Full access