Search found 3 matches

by leonidas
Mon Feb 11, 2019 7:13 pm
Forum: General Questions
Topic: Decoding Snow/Ice Surface from VIIRS EDR CLOUD Mask HDF file
Replies: 4
Views: 2107

Re: Decoding Snow/Ice Surface from VIIRS EDR CLOUD Mask HDF file

Bob, thank you for the detailed instructions!
I also noticed that some fire pixels are also detected as clouds.
In any case, this is not a real problem because I 'll use all of them (fire,clouds,snow) as a mask for my research.
by leonidas
Sat Jan 26, 2019 8:45 pm
Forum: General Questions
Topic: Decoding Snow/Ice Surface from VIIRS EDR CLOUD Mask HDF file
Replies: 4
Views: 2107

Re: Decoding Snow/Ice Surface from VIIRS EDR CLOUD Mask HDF file

Thank you! I follow your tip. It was McIDAs display issue. Now I'm getting the same results with numpy. How accurate is the snow/ice surface detection in VIIRS? It's really strange to see snow or ice in such areas ( blue circles ) in South Greece that season... Is there any confidence flag for snow/...
by leonidas
Thu Jan 24, 2019 3:41 pm
Forum: General Questions
Topic: Decoding Snow/Ice Surface from VIIRS EDR CLOUD Mask HDF file
Replies: 4
Views: 2107

Decoding Snow/Ice Surface from VIIRS EDR CLOUD Mask HDF file

I decoded Snow/Ice Surface Pixel bits from npp-VIIRS EDR Cloud Mask (in QF1_VIIRSCMEDR dataset). I am working with CLASS/NOAA hdf files. The results looks reasonable, snow on peaks of mountainous areas. But I also get some strange results. I get some snow/ice near coastline (blue circles). The image...