Skip to main content
×
Home
    • Aa
    • Aa

Precipitation simulation for Dronning Maud Land using the COSMO Model

  • Ulrike Wacker (a1), Hinnerk Ries (a1) and Ulrich Schättler (a2)
Abstract
Abstract

A weather episode, characterized by the passage of synoptic disturbances, is investigated for Dronning Maud Land, Antarctica. Due to the sparsity of observations, information about the spatial and temporal distribution of precipitation at high resolution can be gained only by modelling. The simulations presented here are performed with the high-resolution, non-hydrostatic weather forecast COSMO Model with a horizontal mesh size of 7 km. The comparison with observations at four stations shows that the simulation captures the general meteorological conditions well, while a warm bias and a weak daily cycle are found in near-surface temperatures. With regard to precipitation, the timing relates well to the observations; the amount of precipitation, however, is that of an extreme event and possibly overestimated in some regions. The horizontal distribution of precipitation is dominated by topographic effects. The simulations show the general decrease of precipitation toward the interior, as seen in the accumulation climatology, however, the decrease is not monotonous. For example, in the simulations horizontal structures such as precipitation bands of some 100 km width appear on the plateau, which can only be resolved by models with mesh sizes of 10 km or less.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Precipitation simulation for Dronning Maud Land using the COSMO Model
      Available formats
      ×
      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about sending content to Dropbox.

      Precipitation simulation for Dronning Maud Land using the COSMO Model
      Available formats
      ×
      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about sending content to Google Drive.

      Precipitation simulation for Dronning Maud Land using the COSMO Model
      Available formats
      ×
Copyright
Corresponding author
*Ulrike.Wacker@awi.de
References
Hide All
Bromwich D.H. 1988. Snowfall in high southern latitudes. Reviews of Geophysics, 26, 149168.
Bromwich D.H., Monaghan A.J., Manning K.W. Powers J.G. 2005. Real-time forecasting for the Antarctic: an evaluation of the Antarctic Mesoscale Prediction System (AMPS). Monthly Weather Review, 133, 581603.
Bryan G.H., Wyngaard J.C. Fritsch J.M. 2003. Resolution requirements for the simulation of deep moist convection. Monthly Weather Review, 131, 23942416.
Doms G. Schättler U. 1999. The Nonhydrostatic Limited-Area Model LM (Lokal-Modell) of DWD. Part I. Scientific Documentation. Offenbach: DWD (German Weather Service), GB Forschung und Entwicklung.
Doms G. Schättler U. 2002. A description of the Nonhydrostatic Regional Model LM. Part I. Dynamics and numerics. http://cosmo-model.cscs.ch/content/model/documentation/core.
Doms G., Schättler U. Schulz J.-P. 2003. Kurze Beschreibung des Lokal-Modells LM und seiner Datenbanken auf dem Datenserver (DAS) des DWD. Offenbach: Deutscher Wetterdienst (DWD), 61pp.
Garratt J.R. 1992. The atmospheric boundary layer. Cambridge: Cambridge University Press, 316 pp.
Gravert M.F., Colle B.A. Mass C.F. 2005. The 13–14 December 2001 IMPROVE-2 event. Part I. Synoptic and mesoscale evolution and comparison with a mesoscale model simulation. Journal of the Atmospheric Sciences, 62, 34743492.
Hines K.M., Bromwich D.H. Liu Z. 1997a. Combined global climate model and mesoscale model simulations of Antarctic climate. Journal of Geophysical Research, 102, 13 74713 760.
Hines K.M., Bromwich D.H. Cullather R.I. 1997b. Evaluating moist physics for Antarctic mesoscale simulations. Annals of Glaciology, 25, 282286.
Jacobsen I. Heise E. 1982. A new economic method for the computation of the surface temperature in numerical models. Contributions to Atmospheric Physics, 55, 128141.
King J.C. Turner J. 1997. Antarctic meteorology and climatology. Cambridge: Cambridge University Press, 409 pp.
Louis J.-F. 1979. A parametric model of vertical eddy fluxes in the atmosphere. Boundary Layer Meteorology, 17, 187202.
Mass C.F., Ovens D., Westrick K. Colle B.A. 2002. Does increasing horizontal resolution produce more skillful forecasts? Bulletin of the American Meteorological Society, 83, 407430.
Monaghan A.J., Bromwich D.H., Powers J.G. Manning K.W. 2005. The climate of McMurdo, Antarctica, Region as represented by one year of forecasts from the Antarctic mesoscale prediction system. Journal of Climate, 18, 11741189.
Monaghan A.J., Bromwich D.H., Fogt R.L., Wang S.H., Mayewski P.A., Dixon D.A., Ekaykin A., Frezzotti M., Goodwin I., Isaksson E., Kaspari S.D., Morgan V.I., Oerter H., Van der Veen C.J. Wen J. 2006a. Insignificant change in Antarctic snowfall since the International Geophysical Year. Science, 313, 827831.
Monaghan A.J., Bromwich D.H. Wang S.-H. 2006b. Recent trends in Antarctic snow accumulation from Polar MM5 simulations. Philosophical Transactions of the Royal Society of London, A364, 16831709.
Noone D., Turner J. Mulvaney R. 1999. Atmospheric signals and characteristics of accumulation in Dronning Maud Land, Antarctica. Journal of Geophysical Research, 104, 19 19119 211.
Oerter H., Wilhelms F., Jung-Rothenhäuser F., Göktas F., Miller H., Graf W. Sommer S. 2000. Accumulation rates in Dronning Maud Land, Antarctica, as revealed by dielectricprofiling measurements of shallow firn cores. Annals of Glaciology, 30, 2734.
Powers J.G., Monaghan A.J., Cayette A.M., Bromwich D.H., Kuo Y.-H. Manning K.W. 2003. Real-time mesoscale modeling over Antarctica. Bulletin of the American Meteorological Society, 84, 15331545.
Reijmer C.H. Van Den Broeke M.R. 2001. Moisture source of precipitation in Western Dronning Maud Land, Antarctica. Antarctic Science, 13, 210220.
Rotschky G., Eisen O., Wilhelms F., Nixdorf U. Oerter H. 2004. Spatial distribution of surface mass balance on Amundsenisen plateau, Antarctica, derived from ice-penetrating radar studies. Annals of Glaciology, 39, 265270.
Smith R.B. 1979. The influence of mountains on the atmosphere. Advances in Geophysics, 21, 87230.
Steppeler J., Doms G. Schättler U. et al. 2003. Meso-gamma forecasts using the nonhydrostatic model LM. Meteorology and Atmospheric Physics, 82, 7596.
Stone R.S. 1993. Properties of austral winter clouds derived from radiometric profiles at the South Pole. Journal of Geophysical Research, 98, 12 96112 971.
Turner J., Connolley W.M., Leonhard S., Marshall G.J. Vaughan D.G. 1999. Spatial and temporal variability of net snow accumulation over the Antarctic from ECMWF re-analysis project data. International Journal of Climatology, 19, 697724.
Van De Berg W.J., Van Den Broeke M.R., Reijmer C.H. Van Meijgaard E. 2006. Reassessment of the Antarctic surface mass balance using calibrated output of a regional atmospheric climate model. Journal of Geophysical Research, 111, 10.1029/2005JD006495.
Van Den Broeke M.R., Reijmer C.H. Van De Wal R. 2004. A study of the surface mass balance in Dronning Maud Land, Antarctic, using automatic weather station. Journal of Glaciology, 50, 565582.
Van Lipzig N.P.M., King J.C., Lachlan-Cope T.A. Van Den Broeke M.R. 2004. Precipitation, sublimation, and snow drift in the Antarctic peninsula region from a regional atmospheric model. Journal of Geophysical Research, 109, 10.1029/2004JD004701.
Vaughan D.G., Bamber J.L., Giovinetto M., Russell J. Cooper A.P.R. 1999. Reassessment of net surface mass balance in Antarctica. Journal of Climatology, 12, 933946.
Wacker U., Potty K.V.J., Lüpkes C., Hartmann J. Raschendorfer M. 2005. A case study on a polar cold air outbreak over Fram Strait using a mesoscale weather prediction model. Boundary Layer Meteorology, 117, 301336.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Antarctic Science
  • ISSN: 0954-1020
  • EISSN: 1365-2079
  • URL: /core/journals/antarctic-science
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords:

Metrics

Full text views

Total number of HTML views: 1
Total number of PDF views: 42 *
Loading metrics...

Abstract views

Total abstract views: 60 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 22nd October 2017. This data will be updated every 24 hours.