Seeing - ε

Seeing Horizontal Maps Temporal Evolution

Forecast relative to the night starting on 2026/06/14 MST

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

Seeing horizontal map extended on a 50km x 50km square surface centred on LBT (represented with a black dot). The seeing is integrated over three different vertical slabs:

TOTAL SEEING (εTOT) – [dome-20000]m
BOUNDARY LAYER SEEING (εBL) – [dome-600]m
FREE ATMOSPHERE SEEING (εFA) – [600-20000]m

The seeing in each pixel is obtained integrating the CN2 along the zenith and covering the temporal range [dusk,dawn]. The animations show the temporal evolution with 1-hour steps (in UT and MST). The black iso-lines represent the heights of the Digital Elevation Model (DEM).

Fig. 1: Seeing map [50×50]km integrated on [20-20000]m. Time animation with 1-hour steps

Fig. 2: Seeing map [50×50]km integrated on [20-600]m. Time animation with 1-hour steps

Fig. 3: Seeing map [50×50]km integrated on [600-20000]m. Time animation with 1-hour steps