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Questions related from Amrit Thapa
I am using gamma distribution for correcting bias in satellite based precipitation. Can you suggest me to handle zero values ?
01 January 2018 4,663 1 View
I was trying to read APHRODITE data in R software but could not. Any solution?
11 November 2017 7,546 3 View
I have a matrix with x rows and 2 columns. I want to select the row which has minimum value in both columns. But the problem is minimum value does not occur at the same time in a row. Is there any...
10 October 2017 7,188 0 View
I am planning to use MSWEP rainfall data for some hydrological application. I decide to use R as i am familiar with it. Can anyone know how to read MSWEP rainfall data from R? I already tried with...
10 October 2017 1,402 3 View
Have you come across any vulnerability mapping package in R?
06 June 2017 4,794 0 View
I was unable to install MODISSnow library in window platform. Can anyone help me?
06 June 2017 9,331 0 View
how important is snow interception by plant for central Himalayas. Any reference articles.
06 June 2017 8,884 2 View
I have raster file of snow cover days. Now i want to calculate mean snow cover days for whole raster. How to do this. Should i add values of all pixel and divide by those pixels which have snow ?
05 May 2017 6,627 2 View
Could you explain which statistical index is better for evaluation of satellite rainfall product for Himalayan catchment?
02 February 2017 6,722 4 View
I am trying to study the sensitivity of river discharge to Snow Cover Area (SCA) derived from MODIS for Himalayan catchment. I found some paper using elasticity approach eg., Kour et al., 2016. Do...
01 January 2017 7,777 3 View
I need to improve/increase the spatial resolution of gridded climate datasets from low to high (eg., 5 km to 90 m) for Himalayan Catchment. Can you suggest some?
01 January 2017 4,280 6 View
how can we downscale GCM/RCM data (MERRA) in R using quantile mapping? Are there any detail manual?
12 December 2016 7,046 2 View
I have a raster stack of 15 layers. I want to perform Mann Kendall trend test, its significance and Theil sen slope. How can i do this in R for window operating system. The stack has NA values in...
11 November 2016 3,681 25 View
I was following papers related to time series of snow cover area. I found that snow cover is expressed by anomalies most of the time? What is the reason behind this or why anomaly plots are used ?...
09 September 2016 6,232 0 View
i am trying to obtain snow cover area of Bhutan. Any suggestion for the product that is better than others
09 September 2016 4,268 0 View
What are the issues that could arise by distribution of point observation of precipitation and temperature in Himalayan catchment using lapse rates and precipitation gradient ?
08 August 2016 5,519 6 View
While doing snow-melt modelling, is it necessary to keep snow-melt temperature below threshold temperature for type of precipitation? Why? Why not? Explanation please.
08 August 2016 9,210 0 View
Is there any freely available model that can be use to calculate wind induced snow transport?
07 July 2016 5,613 0 View
I have simulated fractional snow cover from a snow model. Now i want to validate the simulated result with snow cover from LANDSAT. How can i calculate fractional snow cover area from LANDSAt
06 June 2016 1,795 1 View
i am reviewing the importance of seasonal snow cover. I am curious to know how seasonal snow cover affect climate, hydrological processes and human activities. Your views and link to journal...
06 June 2016 8,225 5 View
I want to use Era interim data as input forcing for hydrological modeling of Himalayan catchment. How can i do bias correction for Era data?
02 February 2016 974 3 View
I am doing literature review of snow modelling in the Himalayan basin. I only found few papers on snow cover monitoring using remote sensing. If anybody has papers on empirical and physically...
01 January 2016 522 3 View
I am trying to extrapolate the precipitation data at some reference station within a DEM to each pixel of DEM. For this, i have longitudinal gradient. The longitudinal gradient is based on the...
12 December 2015 8,483 9 View
I have a time series of daily precipitation data. There are a lot of missing data. In some cases, data are missing for many consecutive days. What is the best method for filling precipitation data?
03 March 2015 801 8 View
I have a time series of daily snow cover area for certain years. How can i calculate daily,monthly and seasonal snow cover anomalies? I want to make histogram of snow cover anomalies vs number of...
03 March 2015 4,918 2 View
