Sentinel-5P products

EO Products / Scripts
#1

Hello. Recently, I have observed the products of Sentinel-5p provided by the Sentinel-hub EO-Browser and I have some question regarding them.

  1. I found that there are always some empty (i.e., No value) pixels in the products which were not processed by Sentinel-hub. I want to know the reasons why these pixels were not processed (See the pictures below).
    pic-1
    pic-11282×630 254 KB

https://drive.google.com/open?id=1TcTWuqIN0KQ_a2VYENLXci71Wo_qUXKE

  1. I also observed some empty pixels which make a linear pattern. What are these linear empty patterns? Please see the picture below for more clarification.
    https://drive.google.com/open?id=1u8sQhtuIxhEb9cQjfzWmkwSbACWprrzC

  2. I saw some linear patterns in the products (See the picture below ). What makes the algorithms to produce these patterns?
    https://drive.google.com/open?id=1mnSAj1H-Q6bn0Gbksl8M0-UFsGZvg_j3

  3. Is there any report regarding the accuracy of the Sentinel-5p products given by Sentinel-hub?!

#2

Sentinel-5P data come with quality (QA) attribute, which depends on various elements, but most commonly clouds. EO Browser is configured to only show data with QA more than 0.75.
See
https://www.sentinel-hub.com/develop/documentation/eo_products/Sentinel5

If you use Sentinel Hub services directly, over WMS or similar, you will be able to set the limit for this parameter to 0 and you will get all the data.

#3

I am not sure, but I would bet this is either due to the scene borders or QA attribute. I suggest you check how this looks like with QA limit set to 0.

#4

For 3 and 4 I suggest you check ESA’s documentation:
https://sentinels.copernicus.eu/web/sentinel/technical-guides/sentinel-5p/products-algorithms