Search found 7 matches
- Sat Mar 18, 2023 9:07 am America/New_York
- Forum: Questions/Comments
- Question: l2gen atmospheric correction with mask
- Replies: 9
Re: l2gen atmospheric correction with mask
OB SeaDAS - xuanyang02 wrote: > If you want to do l2gen with resolution=250, you need two L1B files > MYD02QKM.A2016059.0235.061.2018055181559.hdf (resolution=250m) > MYD02HKM.A2016059.0235.061.2018055181559.hdf (resolution=500m) > in the same directory with > MYD021KM.A2016059.0235.061.201805518155...
- Sat Mar 18, 2023 9:04 am America/New_York
- Forum: Questions/Comments
- Question: l2gen atmospheric correction with mask
- Replies: 9
Re: l2gen atmospheric correction with mask
gnwiii wrote: > [quote=longest post_id=14330 time=1678586603 user_id=4238]. > For some reason, different bands lose different pixels. > [/quote] > > It is not unusual to get invalid results (e.g., negative values for bands > where water is “dark” but atmospheric contribution is high) for some but > ...
- Sat Mar 11, 2023 9:03 pm America/New_York
- Forum: Questions/Comments
- Question: l2gen atmospheric correction with mask
- Replies: 9
Re: l2gen atmospheric correction with mask
gnwiii wrote: > [quote=longest post_id=14310 time=1678416693 user_id=4238] > I'm interested in water pixels, but there are many missing pixels of > inshore waters after l2gen atmospheric correction, as shown in the image, > which bothers me. So I'm looking for all the pixels of the l2gen > atmospher...
- Thu Mar 09, 2023 9:55 pm America/New_York
- Forum: Questions/Comments
- Question: l2gen atmospheric correction with mask
- Replies: 9
Re: l2gen atmospheric correction with mask
OB SeaDAS - xuanyang02 wrote: > Could you provide the name of the MODIS L1 file you are working on? > > Did you try l2gen with the default setting, which has maskland and > maskcloud checked?Screen Shot 2023-03-09 at 10.50.16 AM.png The L1 file I used and the modified GUI interface are shown below. ...
- Thu Mar 09, 2023 9:51 pm America/New_York
- Forum: Questions/Comments
- Question: l2gen atmospheric correction with mask
- Replies: 9
Re: l2gen atmospheric correction with mask
gnwiii wrote: > [quote=longest post_id=14297 time=1678369879 user_id=4238] > When I used the GUI interface of OCSSW for atmospheric correction of MODIS > and Landsat images with the l2gen procedure, I made the land and cloud mask > options turn off, but there were still only water pixels. I wonder w...
- Thu Mar 09, 2023 9:47 pm America/New_York
- Forum: Questions/Comments
- Question: l2gen atmospheric correction with mask
- Replies: 9
- Thu Mar 09, 2023 8:51 am America/New_York
- Forum: Questions/Comments
- Question: l2gen atmospheric correction with mask
- Replies: 9
l2gen atmospheric correction with mask
When I used the GUI interface of OCSSW for atmospheric correction of MODIS and Landsat images with the l2gen procedure, I made the land and cloud mask options turn off, but there were still only water pixels. I wonder why? How can I get all the pixels after atmospheric correction?