J/MNRAS/515/1788 PWRF configuration files (Yang+, 2022)
Simulating the night-time astronomical seeing at Dome A using Polar WRF.
Yang Q., Wu X., Wang Z., Hu X., Guo Y., Qing C.
<Mon. Not. R. Astron. Soc. 515, 1788-1794 (2022)>
=2022MNRAS.515.1788Y 2022MNRAS.515.1788Y (SIMBAD/NED BibCode)
ADC_Keywords: Models
Keywords: atmospheric effects - methods: data analysis - methods: numerical -
site testing
Abstract:
Excellent astronomical seeing conditions above Dome A in Antarctica
have been observed during nighttime (or polar winter). This study
investigates the performance of the Polar-optimized version of the
Weather Research and Forecasting (Polar WRF, PWRF hereafter) for
simulating the night-time astronomical seeing at Dome A. The seeing
values were estimated by a seeing model, which used the PWRF-simulated
wind shear and temperature gradient as inputs. And three methods to
obtain the boundary layer height in the seeing model have been
examined The estimated seeing agree well with 50-days measurements
from the KunLun Differential Image Motion Monitor at Dome A during the
nighttime of 2019; the correlation coefficients range from 0.62 to
0.71. The PWRF-simulated meteorological parameters indicate that,
strong temperature inversion and low wind speed (when gradient
Richardson number is generally large) near the ground can lead to the
good seeing condition. The results suggest that the PWRF model could
be a useful tool for scheduling ground-based astronomy at Dome A
during nighttime.
Description:
To help other researchers to duplicate the simulation,
the PWRF configuration files (the so-called "namelist.wps" and
"namelist.input") are provided as supplemental material to this paper.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
namelist.wps 82 36 namelist.wps for running the WRF Preprocessing
system
namelist.input 82 128 namelist.input for running the WRF Preprocessing
system
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See also:
https://www2.mmm.ucar.edu/wrf/users/docs/user_guide_v4/contents.html :
User's Guides for the Advanced Research WRF (ARW) Modeling System, Version 4
Description of file:
One can see the description of the namelist variables at the WRF
User's Guide,
https://www2.mmm.ucar.edu/wrf/users/namelist_best_prac_wps.html
(for the namelist.wps file),
https://www2.mmm.ucar.edu/wrf/users/namelist_best_prac_wrf.html
(for the namelist.input file).
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History:
From Qike Yang, yangqike(at)mail.ustc.edu.cn
Acknowledgements:
We are indebted to the NCAR and NCEP for granting access to their
products (https://www2.mmm.ucar.edu/wrf/users/) and the PMG of OSU for
their release of polar modifications for the WRF (Polar WRF;
http://polarmet.osu.edu/PWRF/).
References:
Skamarock et al., 2019, A Description of the Advanced Research WRF Version 4.
NCAR Tech. Note NCAR/TN-556+STR, 145 pp. doi:10.5065/1dfh-6p97
Skamarock at al., 2008, A Description of the Advanced Research WRF Version 3.
NCAR Tech. Note NCAR/TN-475+STR, 113 pp. doi:10.5065/D68S4MVH
(End) Patricia Vannier [CDS] 01-Jun-2022