Karan Gupta

9 Questions 4 Answers 0 Followers

Questions related from Karan Gupta

Where can I buy Naval Hydrographic charts in digital form in India?

I wish to know that where and how can I buy the Naval Hydrographic charts which contains the bathymetry information in the deep sea. Are there any sources which give the digital charts itself?....

24 November 2020 8,369 2 View

How to prepare flood inundation extent in GIS from water levels available at the centerline of the river?

I have water levels during flood at the center line of the river (100 km long) at every 100 m. I also have the DEM of the area in which the river flows. How to generate the flood inundation extent...

17 October 2020 5,388 4 View

Is there any software tool for doing Extreme Value Analysis to find out flood levels for different return periods as well as plot high quality graphs?

I know there is one tool called as EVA tool in MIKE Zero but it is the paid tool. However, I am looking for a free tool and not the paid tool but the one which can do the analysis of extreme...

04 October 2020 363 2 View

How do we treat flow around islands in high width rivers if we want to use 1D hydrodynamic models?

I just wish to know if there is any reference for treatment of islands/large sand patches/sand bars in rivers of width greater than 1 KM in 1D hydrodynamic models. Such kind of studies can be...

30 September 2020 7,225 3 View

To perform extreme value analysis to find out the runoff , what is the minimum length of data recommended?

If I wish to perform extreme value analysis using GEV or Gumbel or any other method to find the runoff for 100 years, 500 year or 1000 year return period, what is the length of time series in...

29 September 2020 2,017 2 View

Which satellite data product is most suitable for flood inundation mapping?

In literature there are so many satellite data products given such as MODIS, Sentinel 1 and 2, Radarsat, Landsat-TM used. However, I am unable to understand which satellite product should I use...

25 September 2020 1,031 9 View

Where to get population density maps shapefiles for India?

I need population density maps of India to be used for a research study. However, I am unable to find its shapefiles. Kindly help.

24 August 2020 4,423 4 View

Best open source software for wave interaction with floating solar array in a lake?

I know the analysis of wave interaction with the floating bodies can be done in the ansys aqwa but it is a paid product and I am looking for a free option. However, I have the license of MIKE MA,...

06 May 2020 9,707 2 View

How to subset the matrix/array with shape file?

I have the gridded rainfall data for India from IMD in .mat format. Also, I have shapefile of Mahanadi basin. I need to clip the rainfall data in the Mahanadi basin itself. Is there any standard...

27 February 2020 4,398 3 View