Search found 12 matches

by roxani2018
Thu Jun 01, 2023 10:57 pm America/New_York
Forum: Questions/Comments
Question: Rayleigh-corrected reflectance
Replies: 1

Rayleigh-corrected reflectance

Hi all, I want to obtain rayleigh-corrected reflectance of GOCI by SeaDAS, and I wonder whether rhos_vvv in the output file corresponds to the rayleigh-corrected reflectance results I want. Since the attributes annotation of rhos_vvv is "Surface reflectance", it confused me a lot. Thanks a...
by roxani2018
Sun Mar 19, 2023 3:35 am America/New_York
Forum: Questions/Comments
Question: SeaDAS install_ocssw failed with exit code 1
Replies: 1

SeaDAS install_ocssw failed with exit code 1

Hi everyone, I recently downloaded SeaDas on my MacBook Air (M2, 2022), and I am trying to install data processors (SeaDAS-OCSSW -> Install/Update OC Processors). However, I receive the same error "no module named requests" every time. Screen Shot 2023-03-19 at 15.29.28.png . I've checked ...
by roxani2018
Mon Nov 08, 2021 11:03 pm America/New_York
Forum: Questions/Comments
Question: Question about Lt results of Landsat8 OLI
Replies: 1

Question about Lt results of Landsat8 OLI

Dear all, Hi! I used SeaDAS(v8.0) l2gen (oli module) to process with Landsat8 Collection1 data and obtained Lt data successfully. However, when I compared Lt from SeaDAS with Lt calculated directly from DN data, I found they were obviously different (pleased see the attached image). The original dat...
by roxani2018
Tue Oct 19, 2021 9:18 pm America/New_York
Forum: Questions/Comments
Question: How to process Landsat8 Collection2 L1 data with SeaDAS
Replies: 6

Re: How to process Landsat8 Collection2 L1 data with SeaDAS

Hi Sean´╝î
Sorry for the long delay of this reply. Thanks a lot for your detailed response, it really helps.
Best wishes,
Roxani
by roxani2018
Wed Oct 06, 2021 11:49 am America/New_York
Forum: Questions/Comments
Question: How to process Landsat8 Collection2 L1 data with SeaDAS
Replies: 6

Re: How to process Landsat8 Collection2 L1 data with SeaDAS

Thanks Sean. Now I successfully produced L2 data from Collection1 L1 data. However, I found there exists a lot of negative Rrs values, especially Rrs(655). During AC process, variables are all set by default, and ancillary data has been caught first. Is it the wrong variable setting or something els...
by roxani2018
Tue Oct 05, 2021 11:36 pm America/New_York
Forum: Questions/Comments
Question: How to process Landsat8 Collection2 L1 data with SeaDAS
Replies: 6

Re: How to process Landsat8 Collection2 L1 data with SeaDAS

Hi,
Thanks for your reply. Follows is the output shown in System Info.
I am not sure what it stands for? Since it works well when processing Landsat8 Collection1 L1 data.
Hope to hear from you soon and thanks a lot.
Roxani
by roxani2018
Sun Oct 03, 2021 9:46 am America/New_York
Forum: Questions/Comments
Question: How to process Landsat8 Collection2 L1 data with SeaDAS
Replies: 6

How to process Landsat8 Collection2 L1 data with SeaDAS

Dear all, Hi! I encounter a problem when using l2gen to produce Rrs data from Landsat8 Collection2 L1 data. Follows are what it shows on my GUI interface: ============================================================================================ # PRIMARY INPUT OUTPUT FIELDS ifile=/Users/mj/Deskto...
by roxani2018
Sat May 08, 2021 10:50 am America/New_York
Forum: Questions/Comments
Question: Question about OCSSW_bash.env
Replies: 4

Re: Question about OCSSW_bash.env

Dear Sean,

I have done as suggested and it works.
Thank you for the quick feedback and it helps a lot.

Best wishes,
Roxani
by roxani2018
Sat May 08, 2021 5:29 am America/New_York
Forum: Questions/Comments
Question: Question about OCSSW_bash.env
Replies: 4

Re: Question about OCSSW_bash.env

Hi! Thanks a lot for your kindly help. I use zsh on macOS 10.13.6 and SeaDAS 8 (replace of v7.5.3) works well now. However a new problem comes up when I use getanc.py to catch ancillary data file: "command not found: getanc.py", it may regards to upgrade of SeaDAS but I am not clear how to...
by roxani2018
Thu May 06, 2021 9:48 pm America/New_York
Forum: Questions/Comments
Question: Question about OCSSW_bash.env
Replies: 4

Question about OCSSW_bash.env

Hi,

I met a problem when I try to source $OCSSWROOT/OCSSW_bash.env: "/Applications/seadas-7.5.3/ocssw/OCSSW_bash.env:136: = not found". I am not sure what's going on since it worked well before.
How should I solve this problem? THANKS.

Roxani