ARCHIVE - Forecast relative to the night starting on 2019/06/25 MST

Note: click on a figure to magnify the image.
Date of figures refers to the start of night in MST.

WIND VERTICAL PROFILES

Vertical profiles are computed in the [0-20km] range above ground level (a.g.l.) and centered on the LBT. Data points frequency is 2 minutes. Here are shown:



  • TEMPORAL EVOLUTION:
    The contour plot represents the temporal evolution of wind speed vertical profiles between the sunset and the sunrise. On the x-axis is time in UT (bottom), in MST (top). Mountain Standard Time MST=UT-7. On the y-axis the height above ground level. The color scale refers to the wind intensity.


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Fig. 1: Wind speed vertical profile temporal evolution between the sunset and the sunrise. Dashed lines indicate the dusk and the dawn.




  • TIME AVERAGES:
    Three time averages are presented, computed in the first, central and last part of the night (see partition). The corresponding MST (MST=UT-7) is shown on the top of the figure.
    The blue light halo around each average represents the +/- sigma in the respective time window.
    Fig.8 and 9 represent represent the three time averages in the same plot with different colors to better appreciate the macroscopic changes in the three temporal intervals. The x-axis of the wind direction is 360° periodic. The convention is 0°: wind blowing from the North; 90°: wind blowing from the East. It may happen that the scale is repeated multiple times if the wind spirals over itself. The y-axis is the height above ground level (a.g.l.).

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Fig. 2: Average wind speed in the "first part of the night".

Fig. 3: Average wind direction in the "first part of the night".


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Fig. 4: Average wind speed in the "central part of the night".

Fig. 5: Average wind direction in the "central part of the night".


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Fig. 6: Average wind speed in the "last part of the night".

Fig. 7: Average wind direction in the "last part of the night".


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Fig. 8: Averaged wind speed in the three successive periods of the night (see red, blue and green intervals).

Fig. 9: Averaged wind direction in the three successive periods of the night (see red, blue and green intervals).