It depends on the purpose of your study!

It depends on the purpose of your study!

Come on dear it is based your project

Regards

There is no best image for remote sensing, but there is best for each application... it depends on the purpose of your work.

Thanks for your responces

I agree that my question is public but the responces are more public too.

The sentinel2 geometric resoloution is 10 m

The sentinel2 temporal resoloution is 10 days(with A and B combination it was been 5 days)

The sentinel2 is TOA reflectance produc(Level-1C) that is simply converted to BOA (Level-2A)via sen2cor tool

In the end i download it approximatly with 3-5 days delay.

I use sattlite images in field sclae.

whitch free sattlite image qualify above condition?

Absolutely, Its depends on types and purposes of research work.

Dear Mostafa Khosravirad you asked us in general then you answered your question without any declaration regarding to your application

My regards

Dear Mr Hayder Dibs

Thank you for your note.

My application is crop yield estimation and crop growth modeling via remote sensing.

Spatial scale of my application is field scale and temporal resoloution less than 10 days is needed.

I checked Landsat 7,Landsat8,Sentinel2A,Sentinel2B,MODIS,ASTER free sattlite images.

I downloaded 600 sattlite images from 2001 to 2018 about region of study

I finded among of those images sentinel2 is the best for vegetation study in field scale.

So is better than others both radiometric and geometric accuracy.

Your sincerely,

Dear great job you done, put in your application do you try ever the SAR image , it will be very useful to you

My regards