ARCHIVE - Forecast relative to the night starting on 2024/04/24 MST |
Note: click on a figure to magnify the image.
Date of figures refers to the start of night in MST.
Date of figures refers to the start of night in MST.
CN2 VERTICAL PROFILES
Vertical profiles are computed in the [0-20]km range abobe ground level (a.g.l.) and centered on the LBT. Data points temporal frequency is 2 minutes. Here are shown:- TEMPORAL EVOLUTION:
The contour plot represents the temporal evolution of CN2 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 CN2.
|
|
|
Fig. 1: CN2 temporal evolution between the sunset and the sunrise |
Fig. 2: CN2 temporal evolution between the sunset and the sunrise |
- TIME AVERAGES:
Three time averages of the CN2 profiles are presented in Fig. 3 to 5, 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. 6 represents the three time averages of the CN2 profiles in the same plot with different colors to better appreciate the macroscopic changes in the three temporal intervals.
|
|
|
|
Fig. 3: Average CN2 in the "first part of the night". |
Fig. 4: Average CN2 in the "central part of the night". |
Fig. 5: Average CN2 in the "last part of the night". |
|
|
Fig. 6: Averaged CN2 in the three successive periods of the night (see red, blue and green intervals) |