Priyank J. Sharma

13 Questions 11 Answers 0 Followers

Questions related from Priyank J. Sharma

Which climate classification system is most suitable fro Indian conditions - Köppen, Köppen-Geiger or Thornthwaite classification?

(Accessed from http://agron-www.agron.iastate.edu/courses/Agron541/classes/541/lesson08a/8a.3.html) When using temperature and precipitation to define climate, the two must be combined in a...

30 November 2019 8,533 1 View

Which parameter would be more appropriate in quantifying the impacts of climate change on agricultural production in a river basin?

Hello everyone, In my study I have found that due to climate change, the freshwater availability in the basin is declining which has put large parts of the basin under water stress conditions,...

24 May 2019 7,599 5 View

Which non-parametric trend analysis technique is more appropriate in case the data contains considerable 'zero' values?

In analysis of hydro-meteorologic variables, many times we encounter count based series exceeding certain threshold value. For example, number of days in a year having rainfall more than 100 mm or...

26 October 2018 917 1 View

What is the robust procedure for estimation of threshold value in analysing extreme rainfall series for a given raingauge station?

For climatological studies, it is very important to address the issue of threshold selection. For extreme rainfall/temperature time series, apart from block Maxima series, POT (peak over...

07 October 2018 597 3 View

To estimate the correlation between monthly monsoon rainfall and ENSO for Indian region, should we consider monthly or 3-month running mean series?

ENSO (El Nino Southern Oscillation Index) is computed using the anomalies in SST (Sea Surface Temperature) for a 3-month running mean period. While exploring correlation between ENSO and monthly...

10 September 2018 3,889 2 View

How to determine the significance of the Sen's slope value of a particular time series for different significance level, viz., 1%, 5% and 10%?

Sen's Slope Estimator Test (Hirsch et al., 1982) is widely used to determine the trend magnitude. Mann-Kendall and other non-parametric tests are used to determine the nature of monotonic trend...

22 March 2018 9,634 3 View

Which artificial intelligence/soft computing/data mining techniques are more efficient in forecasting reservoir inflows?

The present reservoir system I am working on has only one major reservoir for which inflow forecasting has to be undertaken. The catchment area upto the reservoir site is 62,245 km^2. There are...

21 June 2017 4,565 5 View

Which data driven technique can be applied for multi-site inflow prediction?

The inflow prediction in the reservoir is a very important and challenging task for the reservoir operation. However, in a large basin, there are many sub-catchments. So initially, one needs to...

04 May 2017 1,262 4 View

Which is the most efficient technique for base flow separation from measured streamflow time series at a given site?

The estimation of runoff coefficient essentially requires segregation of measured stream flow into direct runoff and base flow parts. However, many techniques such as graphical and empirical...

28 December 2016 1,951 6 View

Which is the robust statistical package or software for fitting probability distributions to a hydrological data series?

I came across many statistical packages such as MATLAB which has Distribution fitting toobox which employs log likelihood method for estimation of parameters, EasyFit tool which fits many...

02 June 2016 9,714 9 View

In case of stochastic modelling, set of random numbers generated using software has to be preserved for validation of model or change for every run?

Suppose we have different candidate models proposed for a time series based on ACF and PACF. Now the basic equation has the white noise term. In MATLAB, u have "randn" command to generate normal...

20 July 2015 7,730 5 View

What could be the implications of neglecting periodicities while development of Stochastic data generation and forecasting models like ARMA, ARIMA?

To determine the order of AR and MA models, Autocorrelation and Partial auto correlation function provide better idea, while the spectrum analysis is not so conclusive. So while developing a model...

27 October 2014 1,344 3 View

How to quantify the effect of climatic drivers on runoff coeffcient for a watershed? Is there any metric to relate them?

The runoff coefficient for a watershed gives a fair idea about the input-response relationship for the system. The major factors that affect the rainfall-runoff relationship can be broadly...

01 January 1970 9,774 5 View