The observed relationship between the south pole 225-GHz atmospheric opacity and the water vapor column density

1995 ◽  
Vol 16 (5) ◽  
pp. 907-920 ◽  
Author(s):  
Richard A. Chamberlin ◽  
John Bally
Keyword(s):  
Water Vapor ◽  
Column Density ◽  
South Pole ◽  
The South ◽  
Atmospheric Opacity

scholarly journals Submillimeter Site Testing at Dome C, Antarctica

2004 ◽  
Vol 21 (3) ◽  
pp. 256-263 ◽  
Author(s):  
Paolo G. Calisse ◽  
Michael C. B. Ashley ◽  
Michael G. Burton ◽  
Michael A. Phillips ◽  
John W. V. Storey ◽  
...  
Keyword(s):  
South Pole ◽  
Site Testing ◽  
The South ◽  
Atmospheric Opacity ◽  
Antarctic Plateau ◽  
Under Construction ◽  
The Antarctic ◽  
Better Than

AbstractWe have developed a 350 μm radiometer to perform automated site testing in remote regions of Antarctica. In summer 2000–2001 the instrument operated at Concordia, a new station under construction at Dome C on the Antarctic Plateau. We present the results, and compare them with the atmospheric opacity measured at the South Pole in the same five-week period. During these five weeks, observing conditions at Dome C were, on average, substantially better than those at the South Pole.

scholarly journals Spectral and Broadband Longwave Downwelling Radiative Fluxes, Cloud Radiative Forcing, and Fractional Cloud Cover over the South Pole

2005 ◽  
Vol 18 (20) ◽  
pp. 4235-4252 ◽  
Author(s):  
Michael S. Town ◽  
Von P. Walden ◽  
Stephen G. Warren
Keyword(s):  
Water Vapor ◽  
Radiative Forcing ◽  
Cloud Cover ◽  
South Pole ◽  
The South ◽  
Near Surface ◽  
Cloud Radiative Forcing ◽  
Clear Sky ◽  
Fractional Cloud ◽  
Visual Observations

Abstract Annual cycles of downwelling broadband infrared radiative flux and spectral downwelling infrared flux were determined using data collected at the South Pole during 2001. Clear-sky conditions are identified by comparing radiance ratios of observed and simulated spectra. Clear-sky fluxes are in the range of 110–125 W m−2 during summer (December–January) and 60–80 W m−2 during winter (April–September). The variability is due to day-to-day variations in temperature, strength of the surface-based temperature inversion, atmospheric humidity, and the presence of “diamond dust” (near-surface ice crystals). The persistent presence of diamond dust under clear skies during the winter is evident in monthly averages of clear-sky radiance. About two-thirds of the clear-sky flux is due to water vapor, and one-third is due to CO2, both in summer and winter. The seasonal constancy of this approximately 2:1 ratio is investigated through radiative transfer modeling. Precipitable water vapor (PWV) amounts were calculated to investigate the H2O/CO2 flux ratio. Monthly mean PWV during 2001 varied from 1.6 mm during summer to 0.4 mm during winter. Earlier published estimates of PWV at the South Pole are similar for winter, but are 50% lower for summer. Possible reasons for low earlier estimates of summertime PWV are that they are based either on inaccurate hygristor technology or on an invalid assumption that the humidity was limited by saturation with respect to ice. The average fractional cloud cover derived from the spectral infrared data is consistent with visual observations in summer. However, the wintertime average is 0.3–0.5 greater than that obtained from visual observations. The annual mean of longwave downwelling cloud radiative forcing (LDCRF) for 2001 is about 23 W m−2 with no apparent seasonal cycle. This is about half that of the global mean LDCRF; the low value is attributed to the small optical depths and low temperatures of Antarctic clouds.

scholarly journals FTS Opacity Measurements of the South Pole Submillimeter Sky

2005 ◽  
Vol 13 ◽  
pp. 973-973
Author(s):  
Richard A. Chamberlin
Keyword(s):  
Fourier Transform ◽  
Fourier Transform Spectrometer ◽  
South Pole ◽  
The South ◽  
Atmospheric Opacity

AbstractA sub-millimeter Fourier Transform Spectrometer (FTS) was used at the South Pole to acquire wide frequency span (300 GHz < v < 2 THz) measurements of the atmospheric opacity, T(V). Comparisons were made with other ongoing measurements to allow inference of typical wintertime observing statistics.

Expedition to the South Pole: experience of the laboratory game on polar sciences with primary schools

2018 ◽  
Vol 45 ◽  
pp. 31-38
Author(s):  
Federica La Longa ◽  
Massimo Crescimbene ◽  
Lucilla Alfonsi ◽  
Claudio Cesaroni ◽  
Vincenzo Romano
Keyword(s):  
Primary Schools ◽  
South Pole ◽  
The South

scholarly journals Design and performance of the first IceAct demonstrator at the South Pole

2020 ◽  
Vol 15 (02) ◽  
pp. T02002-T02002
Author(s):  
M.G. Aartsen ◽  
M. Ackermann ◽  
J. Adams ◽  
J.A. Aguilar ◽  
M. Ahlers ◽  
...  
Keyword(s):  
South Pole ◽  
The South ◽  
And Performance

scholarly journals Publisher Correction: Record warming at the South Pole during the past three decades

2021 ◽  
Author(s):  
Kyle R. Clem ◽  
Ryan L. Fogt ◽  
John Turner ◽  
Benjamin R. Lintner ◽  
Gareth J. Marshall ◽  
...  
Keyword(s):  
South Pole ◽  
The South ◽  
The Past
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