Vaijayanti Vijayaraghavan

13 Questions 15 Answers 0 Followers

Questions related from Vaijayanti Vijayaraghavan

How can I resolve error while plotting variance in move package in R?

Im trying to plot the dynamic brownian motion variance for my movement dataset using: plot(Timestamp(var), getMotionVariance(var), type='s') I received this error: error in evaluating the argument...

07 July 2015 4,462 2 View

How do I estimate the density and occupancy when the population size is extremely low?

We would like to estimate the population size of an animal across the landscape, covering approx 20,000 km2 area. We expect the poplation size to be not more than 30 -40. Since such a large area...

05 May 2015 6,018 12 View

How do I convert .grd files obtained from IMD into a GIS usable format?

I bought climate data from IMD. Now I cannot open the .grd files. I want to use it in GIS. HELP! Aside from grads software, what else can I use to open the file?

09 September 2014 6,838 8 View

How does batch convert netCDF format to geotiff work?

I have climate data from GLDAS and I want to convert it to geotiff format. I have about 200 files so manual isn't feasible. Any scripts in arcgis 10 or softwares would be useful.

04 April 2013 6,535 10 View

Where can I freely download global climate data sets?

I'm working in the western ghats area. I need data like rainfall, temp, etc. Where can I download it from? I want to import it to a GIS platform.

02 February 2013 5,474 47 View

During DN for reflectance conversion, what is the mean solar exo-atmospheric irradiance and where do I find this value?

I want to carry out changes of detection between 2 images: 1. landsat 3 mss image and 2. landsat 5 tm image. If anyone could also tell me how to calculate the earth sun distance or where to...

02 February 2013 4,317 3 View

To carry out LULC change detection, what are the necessary pre processing steps?

I want to carry out LULC change detection of landsat images. Do I need to convert DN to radiance or reflectance values?

02 February 2013 6,261 3 View

In a landsat image, can paddy fields have a cyan colored reflection in FCC in the month of March?

01 January 2013 8,520 1 View

How to calculate phenological metrics from MODIS NDVI time-series data?

I want to know which algorithms to use to calculate phenological metrics. There is one 'Delayed moving average' but I don't know what it does or how to carry out this method.

01 January 2013 5,956 2 View

Where can I access SPOT imagery from?

I want to know of any portals from which SPOT images can be downloaded or purchased

01 January 2013 7,548 1 View

What are the various models for drivers of land use land cover change? And what are the various drivers?

12 December 2012 8,552 0 View

How do i stack images in idrisi taiga?

12 December 2012 5,016 1 View

How do I get satellite images from indian satellites between 1990 and 2000?

12 December 2012 520 4 View