Search found 8 matches

by armin.mehrabian
Thu Oct 01, 2020 4:32 pm America/New_York
Forum: All Questions/Comments
Question: Processing speed for L2 rhos product
Replies: 2

Processing speed for L2 rhos product

Thanks Minwei! It actually helped to cut the processing time for a particular test scene from 5 hours to 3 hours.

Armin
by armin.mehrabian
Thu Oct 01, 2020 10:29 am America/New_York
Forum: All Questions/Comments
Question: Processing speed for L2 rhos product
Replies: 2

Processing speed for L2 rhos product

Hello,I'm currently processing scenes from both S2 and L8 missions. The only product that I'm trying to generate here is rhos. Since I'm only generating rhos, I expect the process to be decently quick. However, it takes a couple of hours (up to 5 hours) for a single scenes. I know the pe...
by armin.mehrabian
Mon Mar 30, 2020 9:44 am America/New_York
Forum: All Questions/Comments
Question: Geolocation issue with l2gen
Replies: 4

Geolocation issue with l2gen

Hi Norman,You're right, in fact I had disabled the land-mask as you pointed out. land=$OCDATAROOT/common/landmask_null.dat   maskland=0At this point I'm not sure whether this is a land-mask problem or geolocation problem. Because, not that the output L2 product looks coarse, but al...
by armin.mehrabian
Thu Mar 26, 2020 9:26 am America/New_York
Forum: All Questions/Comments
Question: Geolocation issue with l2gen
Replies: 4

Geolocation issue with l2gen

Hi All,I am processing Landsat8 scenes through l2gen. When the processed scenes are overlaid over a base map, the processed scene is slightly offset in longitude. This is the screenshot of one of the bands of the raw scene:https://elasticbeanstalk-us-east-1-588893393439.s3.amazonaws.com/raw_scene.pn...
by armin.mehrabian
Wed Feb 26, 2020 11:41 am America/New_York
Forum: All Questions/Comments
Question: Cloud mask issue with Sentinel 2 data
Replies: 2

Cloud mask issue with Sentinel 2 data

Thanks Sean. I'll try to generate the cloud mask using cloud_albedo.
by armin.mehrabian
Wed Feb 26, 2020 11:38 am America/New_York
Forum: All Questions/Comments
Question: Geolocation issue with L2 Sentinel2 and Landsat8 products
Replies: 3

Geolocation issue with L2 Sentinel2 and Landsat8 products

Hi All,I'm working on a process that requires,    1. L2 processing Sentinel2 and Landsat8 scenes through l2gen    2. Post-processing the Rrs outputs from step 1 outside seadas    3. create geolocated geotiffs from step 2 resultsIn order to create geolocated geotiffs...
by armin.mehrabian
Tue Feb 25, 2020 11:50 am America/New_York
Forum: All Questions/Comments
Question: Cloud mask issue with Sentinel 2 data
Replies: 2

Cloud mask issue with Sentinel 2 data

Hi All,I'm processing Sentinel2 scenes through l2gen to generate L2 products. I've been trying to figure a good cloud_thresh value for the task. However, it seems that changing the cloud_thresh value for some reason doesn't work. Here are some examples of the same scene processed with di...