Deepak Singh Bisht

11 Questions 26 Answers 0 Followers

Questions related from Deepak Singh Bisht

Can Noah LSM 1D model be used with model forcing at daily time step?

Noah LSM 1D model is mainly used using hourly forcings, ranging from half an hour to 6 hours. Can this model be used using forcing at daily time step in the absence of sub-daily data? Thanks...

09 June 2016 1,098 2 View

How do I find missing variables in GLDAS data in CDO while merging individual file into a time series ?

I have downloaded GLDAS-1 (3-hourly Noah 0.25 data) for the year 2013. As the data is at 3 hour time step I got 365*8=2920 files. When I used merge command in CDO to merge all these files into a...

13 April 2015 242 4 View

Which is the most appropriate index for vegetation growth: NDVI or EVI ?

EVI index became extremely popular due to its ability to eliminate background and atmosphere noises, as well as its non-saturation in high biomass regions while NDVI asymptotically saturates in...

03 April 2015 4,625 14 View

How can one download a time series of a certain variable (say, Net Longwave Radiaition) from GLDAS repository ?

I need to download meteorological forcing data from GLDAS (http://disc.sci.gsfc.nasa.gov/hydrology/data-holdings). However, I could not find any option to download a time series. While subsetting...

05 February 2015 7,606 8 View

Which is the most suitable technique for Interpolation of Rainfall data in ArcGIS ?

For doing spatial interpolation of rainfall data (vector to raster) which is the best suited technique b/w IDW & Kriging.

15 December 2014 8,760 19 View

How does the El-Nino/ENSO affect the Indian Monsoon?

El-Nino/ENSO changes the atmospheric condition over the pacific region. But how does that change affect the Indian Monsoon.

20 August 2014 6,711 8 View

What return period of rainfall should be considered for designing an urban drainage system ?

Generally we take a 10-15 year return period of rainfall for designing the drainage system. But again there are different standards for different countries. Moreover, it again changes based on the...

22 June 2014 3,320 8 View

What is the advantage three parameter distribution has over two parameter distribution in L-moments based frequency analysis method.

In standard L-moments ratio method for frequency analysis we have some 11 distribution methods, out of which five are 3 parameter distributions, one is 5 parameter distribution and five are 2...

22 May 2014 3,607 1 View

How to achieve higher accuracy of land use/cover classification using Google Earth Imagery?

I am trying to classify a few google earth imageries of high resolution. The problem is that these images are only comprised of RGB band and NIR band is not available. While going for unsupervised...

25 March 2014 5,317 34 View

Which schemes SWMM uses for runoff computations and flow routing.

Hello All, I am working on SWMM 5, but currently there is no technical manual available for this. One could get very limited information by reading its application manual. I will highly...

24 March 2014 8,436 2 View

How to download high resolution Google Earth Imagery?

I am looking for a software to download Google Earth Imagery. I tried Google Map Downloader (Trial Version) {annd Stitch Map} but I am not sure about the resolution of image downloaded from its...

14 March 2014 9,860 26 View