thanatos wrote:
Ok
Since I have been involved in site testing for big scopes i can tell
you
this

the decisions are very political, and not necessarily got anything
to do
with seeing
perhaps water vapor for ir - but not seeing...


Hmm, I wonder why Lowell Observatory measured seeing at the site of
their future 4-meter telescope in northern Arizona on 117 nights, and
presented a 12-page analysis of seeing conditions.

http://www.lowell.edu/DCT/SPIE_5489-...te_Testing.pdf


Why do observatories such as the ESO on La Silla and Paranal waste
their time erecting seeing monitors and DIMM's, and publishing their
results?

http://www.ls.eso.org/lasilla/seeing/
http://snap.lbl.gov/pubdocs/Seeing_a...ories_v3.0.doc


Maybe observatories such as Apache Point record the FWHM seeing every
night at an hourly interval just as a curiosity.

http://galileo.apo.nmsu.edu/obs-reports/html/


Tom