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Title: Assessments of Ali, Dome A, and Summit Camp for mm-wave Observations Using MERRA-2 Reanalysis

Abstract

NASA's latest MERRA-2 reanalysis of the modern satellite measurements has made atmospheric data easily accessible with unprecedented uniformity, fidelity, and completeness. In this work, these data are used to evaluate five sites for millimeter-wave (mm-wave) observations. These include two established sites (South Pole and Chajnantor, Atacama), and three new sites (Ali in Tibet, Dome A in Antarctica, and Summit Camp in Greenland). Atmospheric properties including precipitable water vapor (PWV), sky brightness temperature fluctuations, and ice and liquid water paths are derived and compared. Dome A emerges to be the best among those evaluated, with PWV and fluctuations smaller than the second-best site, South Pole, by more than a factor of 2. It is found that the higher site in Ali (6100 m) is on par with Cerro Chajnantor (5612 m) in terms of transmission and stability. The lower site in Ali (5250 m) planned for the first stage of observations at 90/150 GHz provides conditions comparable to those on the Chajnantor Plateau. These analyses confirm Ali to be an excellent mm-wave site in the Northern Hemisphere that will complement well-established Southern sites. Lastly, according to MERRA-2 data, the observing conditions at Summit Camp are also comparable to Cerro Chajnantor. However,more » it is more affected by the presence of liquid water clouds.« less

Authors:
 [1]
  1. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1408205
Alternate Identifier(s):
OSTI ID: 1443917
Report Number(s):
SLAC-PUB-17150
Journal ID: ISSN 1538-4357; TRN: US1702932
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal (Online)
Additional Journal Information:
Journal Name: The Astrophysical Journal (Online); Journal Volume: 848; Journal Issue: 1; Journal ID: ISSN 1538-4357
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; atmospheric effects; cosmic background radiation; cosmology: observations; gravitational waves; radiative transfer; site testing

Citation Formats

Kuo, Chao -Lin. Assessments of Ali, Dome A, and Summit Camp for mm-wave Observations Using MERRA-2 Reanalysis. United States: N. p., 2017. Web. doi:10.3847/1538-4357/aa8b74.
Kuo, Chao -Lin. Assessments of Ali, Dome A, and Summit Camp for mm-wave Observations Using MERRA-2 Reanalysis. United States. doi:https://doi.org/10.3847/1538-4357/aa8b74
Kuo, Chao -Lin. Tue . "Assessments of Ali, Dome A, and Summit Camp for mm-wave Observations Using MERRA-2 Reanalysis". United States. doi:https://doi.org/10.3847/1538-4357/aa8b74. https://www.osti.gov/servlets/purl/1408205.
@article{osti_1408205,
title = {Assessments of Ali, Dome A, and Summit Camp for mm-wave Observations Using MERRA-2 Reanalysis},
author = {Kuo, Chao -Lin},
abstractNote = {NASA's latest MERRA-2 reanalysis of the modern satellite measurements has made atmospheric data easily accessible with unprecedented uniformity, fidelity, and completeness. In this work, these data are used to evaluate five sites for millimeter-wave (mm-wave) observations. These include two established sites (South Pole and Chajnantor, Atacama), and three new sites (Ali in Tibet, Dome A in Antarctica, and Summit Camp in Greenland). Atmospheric properties including precipitable water vapor (PWV), sky brightness temperature fluctuations, and ice and liquid water paths are derived and compared. Dome A emerges to be the best among those evaluated, with PWV and fluctuations smaller than the second-best site, South Pole, by more than a factor of 2. It is found that the higher site in Ali (6100 m) is on par with Cerro Chajnantor (5612 m) in terms of transmission and stability. The lower site in Ali (5250 m) planned for the first stage of observations at 90/150 GHz provides conditions comparable to those on the Chajnantor Plateau. These analyses confirm Ali to be an excellent mm-wave site in the Northern Hemisphere that will complement well-established Southern sites. Lastly, according to MERRA-2 data, the observing conditions at Summit Camp are also comparable to Cerro Chajnantor. However, it is more affected by the presence of liquid water clouds.},
doi = {10.3847/1538-4357/aa8b74},
journal = {The Astrophysical Journal (Online)},
number = 1,
volume = 848,
place = {United States},
year = {2017},
month = {10}
}

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Works referenced in this record:

Neutrino physics from the cosmic microwave background and large scale structure
journal, March 2015


Millimeter Wavelength Brightness Fluctuations of the Atmosphere above the South Pole
journal, April 2005

  • Bussmann, R. S.; Holzapfel, W. L.; Kuo, C. L.
  • The Astrophysical Journal, Vol. 622, Issue 2
  • DOI: 10.1086/427935

Analysis of the distribution of precipitable water vapor in the Chajnantor area: PWV IN THE CHAJNANTOR AREA
journal, July 2016

  • Cortés, Fernando; Reeves, Rodrigo; Bustos, Ricardo
  • Radio Science, Vol. 51, Issue 7
  • DOI: 10.1002/2015RS005929

Modeling Atmospheric Emission for cmb Ground-Based Observations
journal, August 2015


Optimization and sensitivity of the Keck array
conference, September 2012

  • Kernasovskiy, S.; Ade, P. A. R.; Aikin, R. W.
  • SPIE Astronomical Telescopes + Instrumentation, SPIE Proceedings
  • DOI: 10.1117/12.926934

The Impact of Atmospheric Fluctuations on Degree‐Scale Imaging of the Cosmic Microwave Background
journal, November 2000

  • Lay, Oliver P.; Halverson, Nils W.
  • The Astrophysical Journal, Vol. 543, Issue 2
  • DOI: 10.1086/317115

Stability of the Submillimeter Brightness of the Atmosphere above Mauna Kea, Chajnantor, and the South Pole
journal, March 2003

  • Peterson, J. B.; Radford, S. J. E.; Ade, P. A. R.
  • Publications of the Astronomical Society of the Pacific, Vol. 115, Issue 805
  • DOI: 10.1086/368101

Submillimeter Atmospheric Transparency at Maunakea, at the South Pole, and at Chajnantor
journal, June 2016


Polarization and Spectrum of the Primeval Radiation in an Anisotropic Universe
journal, July 1968


The Event Horizon Telescope: exploring strong gravity and accretion physics
journal, November 2014

  • Ricarte, Angelo; Dexter, Jason
  • Monthly Notices of the Royal Astronomical Society, Vol. 446, Issue 2
  • DOI: 10.1093/mnras/stu2128

Studies of Millimeter-Wave Atmospheric Noise Above Mauna kea
journal, December 2009


Signature of Gravity Waves in the Polarization of the Microwave Background
journal, March 1997


Terahertz and far-infrared windows opened at Dome A in Antarctica
journal, December 2016


Initial Performance of Bicep3: A Degree Angular Scale 95 GHz Band Polarimeter
journal, December 2015

  • Wu, W. L. K.; Ade, P. A. R.; Ahmed, Z.
  • Journal of Low Temperature Physics, Vol. 184, Issue 3-4
  • DOI: 10.1007/s10909-015-1403-x

A Guide to Designing Future Ground-Based Cosmic Microwave Background Experiments
journal, June 2014


Exceptional Terahertz Transparency and Stability above Dome A, Antarctica
journal, April 2010

  • Yang, H.; Kulesa, C. A.; Walker, C. K.
  • Publications of the Astronomical Society of the Pacific, Vol. 122, Issue 890
  • DOI: 10.1086/652276

Tibet's Ali: Asia's Atacama?
journal, December 2015

  • Ye, Quan-Zhi; Su, Meng; Li, Hong
  • Monthly Notices of the Royal Astronomical Society: Letters, Vol. 457, Issue 1
  • DOI: 10.1093/mnrasl/slv188

    Works referencing / citing this record:

    Measurements of Tropospheric Ice Clouds with a Ground-based CMB Polarization Experiment, POLARBEAR
    journal, January 2019

    • Takakura, S.; Aguilar-Faúndez, M. A. O.; Akiba, Y.
    • The Astrophysical Journal, Vol. 870, Issue 2
    • DOI: 10.3847/1538-4357/aaf381

    Probing primordial gravitational waves: Ali CMB Polarization Telescope
    journal, February 2018

    • Li, Hong; Li, Si-Yu; Liu, Yang
    • National Science Review, Vol. 6, Issue 1
    • DOI: 10.1093/nsr/nwy019