Felix Nyarko

3 Questions 5 Answers 0 Followers

Questions related from Felix Nyarko

What codes can I use to build calibration models using raw XRF spectra and reference values?

I have raw XRF spectra from soil samples with corresponding reference values of heavy metals. I want to build a calibration model with these data sets using a machine learning algorithm such as...

14 September 2020 9,270 1 View

How do I calculate NDVI images with different thresholds using Sentinel-2 image?

I want to set different thresholds for calculating the NDVI images using Sentinel-2 for the purposes of fishing out river sediments in the Dry and Wet seasons. I am using the Semi-automatic...

06 November 2018 828 2 View

Aside the NDVI values what other indicator could be helpful in identifying sand rivers in a semi-arid region using Sentinel-2 image classification?

I am working on identifying and delineating potential zones of sand rivers using Sentinel-2 in QGIS. So far the NDVI values have been helpful but is there another indicator that could spell out...

29 October 2018 8,911 8 View