Mona Allam

5 Questions 5 Answers 0 Followers

Questions related from Mona Allam

How i can rescale Landsat 8 surface Reflectance?

I am using Landsat 8 surface reflectance product, in the guide related to that product: "https://landsat.usgs.gov/sites/default/files/documents/lasrc_product_guide.pdf" table 7-1 , page 12,...

12 December 2018 287 2 View

How i can select the Flight time for mosaic images if the time are different for the images ?

I am doing FLAASH atmospheric correction using using Envi classic. I have a mosaic image . The flight time for the three images are different as follow, 05:12:50.6197390Z, 05:13:38.4018130Z and...

10 October 2018 8,547 1 View

The cloud mask before or after atmospheric correction?

I am trying to do atmospheric correction to get surface reluctance , and the image has clouds , so the cloud must be masked before or after the atmospheric correction or does not matter

08 August 2018 4,136 1 View

What the difference between these Reflectances product ?

I am work in Turbidity retrieval from Landsat 8, what is the differences between these products and which one of these products i should select. 1) Water-leaving radiance reflectance 2) Remote...

08 August 2018 7,170 2 View

What is the reasons of negative values in classified images ?

I did regression model for my field data with satellite data but i get negative values in my image after i run the model in Arcgis can i knew the reasons?

07 July 2018 5,722 1 View