Base temperatures at the two site are assumed to be 263 K and 275 K, respectively for an Atacama winter and a Mauna Kea summer (when precipitable water vapor levels are at seasonal lows). Zenith angle of pointing is 45 degrees (airmass = 1.414). The plots contain data for the 25%, 50%, and 75% quartiles for precipitable water vapor, which are, respectively, 0.68 mm [solid line], 1.00 mm [dashed line], and 1.60 mm [dotted line] for the Atacama Desert and 1.70 mm [solid line], 2.90 mm [dashed line], and 5.9 mm [dotted line] for Mauna Kea.
The format of the gzipped file names is "atwin_[a-j]t.ps.gz" for the Atacama winter and "mksum_[a-j]t.ps.gz" for the Mauna Kea summer. The letter index represents a wavelength regime, as detailed in the table below. All files have a resolution of R=1000.
Wavelength Index Range (microns): a 1.-2. b 2.-4. c 4.-8. d 8.-16. e 16.-32. f 32.-64. g 64.-128. h 128.-256. i 256.-512. j 512.-1024.
Transmissivity Plots:
Atacama Desert Winter: -rw-r--r-- 1 kachun 52758 Jun 4 15:05 atwin_at.ps.gz -rw-r--r-- 1 kachun 54605 Jun 4 15:06 atwin_bt.ps.gz -rw-r--r-- 1 kachun 53090 Jun 4 15:06 atwin_ct.ps.gz -rw-r--r-- 1 kachun 51921 Jun 4 15:06 atwin_dt.ps.gz -rw-r--r-- 1 kachun 52926 Jun 4 15:06 atwin_et.ps.gz -rw-r--r-- 1 kachun 51120 Jun 4 15:07 atwin_ft.ps.gz -rw-r--r-- 1 kachun 54036 Jun 4 15:08 atwin_gt.ps.gz -rw-r--r-- 1 kachun 57528 Jun 4 15:09 atwin_ht.ps.gz -rw-r--r-- 1 kachun 55104 Jun 4 15:05 atwin_it.ps.gz -rw-r--r-- 1 kachun 54705 Jun 4 15:05 atwin_jt.ps.gz Figure caption: Sky transmissivity for the Atacama Desert in winter calculated with the AT code at a resolution of R=1000 and for a zenith angle of 45 degrees. Lines are for the 25%, 50%, and 75% quartile levels of precipitable water vapor, respectively at 0.68 mm (dotted line), 1.00 mm (dashed line), and 1.60 mm (solid line). Dome A: -rw-r--r-- 1 kachun 50321 Sep 11 15:07 domea_ijt.ps.gz Figure caption: Sky transmissivity for the Antarctic Dome A site calculated with the AT code at a resolution of R=1000 and for a zenith angle of 45 degrees. Lines are for the 25%, 50%, and 75% quartile levels of precipitable water vapor, respectively at 0.050 mm (dotted line), .100 mm (dashed line), and 1.50 mm (solid line). Mauna Kea Summer: -rw-r--r-- 1 kachun 54129 Jun 4 15:33 mksum_at.ps.gz -rw-r--r-- 1 kachun 55409 Jun 4 15:33 mksum_bt.ps.gz -rw-r--r-- 1 kachun 52660 Jun 4 15:33 mksum_ct.ps.gz -rw-r--r-- 1 kachun 53008 Jun 4 15:34 mksum_dt.ps.gz -rw-r--r-- 1 kachun 52757 Jun 4 15:34 mksum_et.ps.gz -rw-r--r-- 1 kachun 52387 Jun 4 15:34 mksum_ft.ps.gz -rw-r--r-- 1 kachun 54496 Jun 4 15:37 mksum_gt.ps.gz -rw-r--r-- 1 kachun 51902 Jun 4 15:37 mksum_ht.ps.gz -rw-r--r-- 1 kachun 54169 Jun 4 15:38 mksum_it.ps.gz -rw-r--r-- 1 kachun 60268 Jun 4 15:38 mksum_jt.ps.gz Figure caption: Sky transmissivity for Mauna Kea in summer calculated with the AT code at a resolution of R=1000 and for a zenith angle of 45 degrees. Lines are for the 25%, 50%, and 75% quartile levels of precipitable water vapor, respectively at 0.68 mm (dotted line), 1.00 mm (dashed line), and 1.60 mm (solid line).
Dome A: -rw-r--r-- 1 kachun 55354 Sep 11 15:15 domea_ije.ps.gz Atacama Desert Winter: -rw-r--r-- 1 kachun 53211 Sep 11 15:17 atwin_ije.ps.gz Mauna Kea Summer: -rw-r--r-- 1 kachun 52623 Sep 11 15:16 mksum_ije.ps.gz Figure caption: Sky thermal emission for Dome A, the Atacama Desert, and Mauna Kea calculated with the AT code at a resolution of R=1000 and for a zenith angle of 45 degrees. Lines are for the 25%, 50%, and 75% quartile levels of precipitable water vapor, which are respectively at 0.050 mm (dotted line), 0.100 mm (dashed line), and 1.50 mm (solid line) for Dome A; 0.68 mm (dotted line), 1.0 mm (dashed line), and 1.6 mm (solid line) for Atacama; 1.7 mm (dotted line), 2.9 mm (dashed line), and 5.9 mm (solid line) for Mauna Kea.
Mauna Kea: -rw-r--r-- 1 kachun casa 54007 Apr 14 00:34 mk1_2_3.ps.gz -rw-r--r-- 1 kachun casa 48015 Apr 14 18:05 mk_at0.ps.gz -rw-r--r-- 1 kachun casa 49840 Apr 14 18:05 mk_at1.ps.gz -rw-r--r-- 1 kachun casa 44350 Apr 14 18:06 mk_at2.ps.gz -rw-r--r-- 1 kachun casa 187848 Apr 14 17:55 mk_mod0.ps.gz -rw-r--r-- 1 kachun casa 165487 Apr 14 17:57 mk_mod1.ps.gz -rw-r--r-- 1 kachun casa 149497 Apr 14 18:08 mk_mod2.ps.gz Figure caption: Sky thermal emission for Mauna Kea calculated with the AT code at a resolution of R=1000, and for 1., 2., and 3. airmasses. Water vapor is at 1.00 mm, and we are assuming a uniform sky temperature of 285 K. Also transmittance plots calculated with AT (mk_at0.ps, mk_at1.ps, mk_at2.ps) and MODTRAN (mk_mod0.ps, mk_mod1.ps, mk_mod2.ps) over the wavelength range 1-40 microns; lines plotted are for airmasses of 1., 2., and 3.