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The Cryosphere An interactive open-access journal of the European Geosciences Union
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Preprints
https://doi.org/10.5194/tcd-8-6251-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tcd-8-6251-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

  21 Dec 2014

21 Dec 2014

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This preprint was under review for the journal TC but the revision was not accepted.

How robust and (un)certain are regional climate models over the Himalayas?

A. P. Dimri A. P. Dimri
  • School of Environmental Sciences, Jawaharlal Nehru University, 110067 New Delhi, India

Abstract. Regional Climate Model(s) (RCMs) are sensitive towards presentation of regional climate of Indian winter monsoon (IWM) over the western Himalayas (WH). They illustrate robust nature in representing regional climate at mountain scale and even at event scale. While downscaling outputs, from these models, at basin level for hydrological and glaciological studies, it is found that RCMs fail to provide realistic figures. And hence, in the present paper, using the Siachen glacier basin as a reference, debate and deliberation on RCMs' uncertainly and high order of deviation from real observations is presented. Results from RCMs thus need "further tuning" if they are used for hydrological and glacier studies. Reasons for such uncertainties could be due to the improper representation of topography, missing subgrid scale processes, surface flux characteristics, various physical processes etc. at such finer model resolution and scale. At present, this paper only deliberates and brings out issues pertaining to such complexities to provide an insight for future course of studies, if understood correctly.

A. P. Dimri

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A. P. Dimri

A. P. Dimri

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Short summary
This paper brings in and debates issues on 1. Uncertainty in regional climate models for glaciological/hydrological studies 2. Bias correction employed on model outputs provide improved results 3. Provides an insight for glacier research
This paper brings in and debates issues on 1. Uncertainty in regional climate models for...
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