Genthon, Christophe; Veron, Dana; Vignon, Etienne; Six, Delphine; Dufresne, Jean Louis; Madeleine, Jean-Baptiste; Sultan, Emmanuelle; Forget, François (2021): Ten years of wind speed observation on a 45-m tower at Dome C, East Antarctic plateau [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.932513
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Abstract:
Long-term, continuous in situ observations of the near-surface atmospheric boundary layer are critical for many weather and climate applications. Although there is a proliferation of surface stations globally, especially in and around populous areas, there are notably fewer tall meteorological towers with multiple instrumented levels. This is particularly true in remote and extreme environments such as the Eastern Antarctic plateau. In the article, we present and analyze 10 years (2010-2019) of data from 6 levels of meteorological instrumentation mounted on a 45-m tower located at Dome C, East Antarctica near the Concordia research station, producing a unique climatology of the near-surface environment. Large seasonal differences are evident in the monthly mean temperature and wind data, depending on the presence or absence of solar surface forcing. Strong vertical temperature gradients (inversions) frequently develop in calm, winter conditions, while vertical convective mixing occurs in the summer leading to near-uniform temperatures along the tower. Seasonal variation in wind speed is much less notable at this location than the temperature variation as the winds are less influenced by the solar cycle; there are no katabatic winds as Dome C is quite flat. Harmonic analysis confirms that most of the energy in the power spectrum is at diurnal, annual and semi-annual scales. Analysis of observational uncertainty and comparison to reanalysis data from ERA-5 indicate that wind speed is particularly difficult to measure at this location.
Supplement to:
Genthon, Christophe; Veron, Dana; Vignon, Etienne; Six, Delphine; Dufresne, Jean Louis; Madeleine, Jean-Baptiste; Sultan, Emmanuelle; Forget, François (2021): 10 years of temperature and wind observation on a 45 m tower at Dome C, East Antarctic plateau. Earth System Science Data, 13, 5731-5746, https://doi.org/10.5194/essd-13-5731-2021
Related to:
Baas, Peter; van de Wiel, Bas J H; van Meijgaard, Erik; Vignon, Etienne; Genthon, Christophe; van der Linden, Steven J A; de Roode, Stephan R (2019): Transitions in the wintertime near‐surface temperature inversion at Dome C, Antarctica. Quarterly Journal of the Royal Meteorological Society, 145(720), 930-946, https://doi.org/10.1002/qj.3450
Genthon, Christophe; Six, Delphine; Gallée, Hubert; Grigioni, Paolo; Pellegrini, A (2013): Two years of atmospheric boundary layer observations on a 45-m tower at Dome C on the Antarctic plateau. Journal of Geophysical Research: Atmospheres, 118(8), 3218-3232, https://doi.org/10.1002/jgrd.50128
Genthon, Christophe; Veron, Dana; Vignon, Etienne; Six, Delphine; Dufresne, Jean Louis; Madeleine, Jean-Baptiste; Sultan, Emmanuelle; Forget, François (2021): Ten years of shielded ventilated atmospheric temperature observation on a 45-m tower at Dome C, East Antarctic plateau. PANGAEA, https://doi.org/10.1594/PANGAEA.932512
Vignon, Etienne; Hourdin, Frédéric; Genthon, Christophe; van de Wiel, Bas J H; Gallée, Hubert; Madeleine, Jean-Baptiste; Beaumet, Julien (2018): Modeling the Dynamics of the Atmospheric Boundary Layer Over the Antarctic Plateau With a General Circulation Model. Journal of Advances in Modeling Earth Systems, 10(1), 98-125, https://doi.org/10.1002/2017MS001184
Vignon, Etienne; van de Wiel, Bas J H; van Hooijdonk, Ivo G S; Genthon, Christophe; van der Linden, Steven J A; van Hooft, Antoon; Baas, Peter; Maurel, William; Traullé, Olivier; Casasanta, Giampietro (2017): Stable boundary‐layer regimes at Dome C, Antarctica: observation and analysis. Quarterly Journal of the Royal Meteorological Society, 143(704), 1241-1253, https://doi.org/10.1002/qj.2998
Project(s):
Funding:
Institut Polaire Français Paul Emile Victor (IPEV), grant/award no. 1013: Antartic field data for CALibration and VAlidation of meteorological and climate models and satellite retrievals, Antarctic Coast to Dome C
Coverage:
Latitude: -75.100000 * Longitude: 123.350000
Minimum Elevation: 3233.0 m * Maximum Elevation: 3233.0 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Date/Time local | Date/Time local | Genthon, Christophe | local time (UTC+08) | ||
| 2 | Wind speed | ff | m/s | Genthon, Christophe | Wind monitor, R.M. Young, model 05103 | at 3m mean height above ground; 30' average |
| 3 | Wind speed | ff | m/s | Genthon, Christophe | Wind monitor, R.M. Young, model 05103 | at 9m mean height above ground; 30' average |
| 4 | Wind speed | ff | m/s | Genthon, Christophe | Wind monitor, R.M. Young, model 05103 | at 17m mean height above ground; 30' average |
| 5 | Wind speed | ff | m/s | Genthon, Christophe | Wind monitor, R.M. Young, model 05103 | at 25m mean height above ground; 30' average |
| 6 | Wind speed | ff | m/s | Genthon, Christophe | Wind monitor, R.M. Young, model 05103 | at 32m mean height above ground; 30' average |
| 7 | Wind speed | ff | m/s | Genthon, Christophe | Wind monitor, R.M. Young, model 05103 | at 40m mean height above ground; 30' average |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
911449 data points
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