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Use of objective analysis to estimate winter temperature and precipitation at different stations over western Himalaya

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Abstract

Temperature and fresh snow are essential inputs in an avalanche forecasting model. Without these parameters, prediction of avalanche occurrence for a region would be very difficult. In the complex terrain of Himalaya, nonavailability of snow and meteorological data of the remote locations during snow storms in the winter is a common occurrence. In view of this persistent problem present study estimates maximum temperature, minimum temperature, ambient temperature and precipitation intensity on different regions of Indian western Himalaya by using similar parameters of the neighbouring regions. The location at which parameters are required and its neighbouring locations should all fall in the same snow climatic zone. Initial step to estimate the parameters at a location, is to shift the parameters of neighbouring regions at a reference height corresponding to the altitude of the location at which parameters are to be estimated. The parameters at this reference height are then spatially interpolated by using Barnes objective analysis. The parameters estimated on different locations are compared with the observed one and the Root Mean Square Errors (RMSE) of the observed and estimated values of the parameters are discussed for the winters of 2007–2008.

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Authors and Affiliations

  1. Snow and Avalanche Study Establishment, Him-Parisar, Sector 37-A, Chandigarh, India

    Jagdish Chandra Joshi & Ashwagosha Ganju

Authors
  1. Jagdish Chandra Joshi
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  2. Ashwagosha Ganju
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Correspondence to Jagdish Chandra Joshi.

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Joshi, J.C., Ganju, A. Use of objective analysis to estimate winter temperature and precipitation at different stations over western Himalaya. J Earth Syst Sci 119, 597–602 (2010). https://doi.org/10.1007/s12040-010-0043-4

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  • DOI: https://doi.org/10.1007/s12040-010-0043-4

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