Search found 69 matches

by zhigang
Mon Jun 10, 2019 6:16 am America/New_York
Forum: Questions/Comments
Question: python calls shell to l2gen error: l2gen not found. How to set env in python script?
Replies: 6

python calls shell to l2gen error: l2gen not found. How to set env in python script?

Try to use source ~/.bashrc and test the l2gen in terminal, if it is okay, python should work as well.
by zhigang
Sun Jun 09, 2019 10:13 am America/New_York
Forum: Questions/Comments
Question: issue: chl_hu: incompatible sensor wavelengths for this algorithm for l7etm
Replies: 5

issue: chl_hu: incompatible sensor wavelengths for this algorithm for l7etm

Dear all,I tried used the atmocor=0 to disable the atmospheric correction to evoid the bands problem of chl_hu before, finnaly, the l2gen did work for the l5tm and l7etmp. [l2gen ifile=LT05_L1TP_026027_20111022_20160830_01_T1_MTL.txt ofile=test.nc atmocor=0 l2prod="rhos_vvv Rrs_vvv" north=...
by zhigang
Wed May 29, 2019 7:26 am America/New_York
Forum: Questions/Comments
Question: issue: chl_hu: incompatible sensor wavelengths for this algorithm for l7etm
Replies: 5

issue: chl_hu: incompatible sensor wavelengths for this algorithm for l7etm

Greetings,I have been trying used the l7etm bundle to process L7ETM+ data in Ubuntu 18.04, however the program always throws an exception:....Aerosol selection bands 835 and 2205Loading aerosol models from /home/zgcao/seadas-7.5.1/ocssw/share/l7empm/aerosol/aerosol_l7etmpNumber of Wavelengths  ...
by zhigang
Tue May 28, 2019 12:01 pm America/New_York
Forum: Questions/Comments
Question: Landsat8 l2_flags
Replies: 9

Landsat8 l2_flags

Thanks Sean. I have remove this line. Although there is another problem, the l2gen does work when I didn't generate chlora.....chl_hu: incompatible sensor wavelengths for this algorithmchl_hu: -1 1 2....I also solved the problem for l7etmp ('cannot read the msl12_defaults.par'). The comm...
by zhigang
Sat May 25, 2019 2:40 pm America/New_York
Forum: Questions/Comments
Question: Landsat8 l2_flags
Replies: 9

Landsat8 l2_flags

Hi Sean,I have a follow up question about the l2gen for Landsat 5 and Landsat 7.According to your comments, I have installed the bundle of Landsat 5 tm manually, and try to process the Landsat 5 data using the default parameter, however, the it didn't work. The detail of processing was:l2gen ifi...
by zhigang
Wed May 15, 2019 9:18 pm America/New_York
Forum: Questions/Comments
Question: When the SeaDAS could process the image bands of VIIRS?
Replies: 2

When the SeaDAS could process the image bands of VIIRS?

Thanks don, I have found a temporary method to process them.

Regards,
Zhigang
by zhigang
Sat Apr 27, 2019 4:26 am America/New_York
Forum: Questions/Comments
Question: When the SeaDAS could process the image bands of VIIRS?
Replies: 2

When the SeaDAS could process the image bands of VIIRS?

Greetings,I read a publication of Wang M.H(2018)(VIIRS-derived ocean color product using the imaging bands), demonstraing that the image band with 375m could be used to retrieve the ocean color matters and was more suitable to monitor the coastal regions. However, I don't know how to process tha...
by zhigang
Mon Mar 18, 2019 9:04 pm America/New_York
Forum: Questions/Comments
Question: problem with https
Replies: 5

problem with https

Exactly, the set_tunnel is very useful. I have been using this function to access the https connection.

Zhigang
by zhigang
Sat Jan 26, 2019 10:24 am America/New_York
Forum: Questions/Comments
Question: How to compress the L2 output in SeaDAS
Replies: 2

How to compress the L2 output in SeaDAS

Thanks Brendan. I have enlarged my disks to storage them.

Regards,
Zhigang
by zhigang
Wed Jan 16, 2019 11:38 am America/New_York
Forum: Questions/Comments
Question: seadas7.5.1 installing issure fro
Replies: 2

seadas7.5.1 installing issure fro

I guess that the git in your system is not complete version. Firstly, you can check the git connection using:git ls-remote "https://oceandata.sci.gsfc.nasa.gov/git/obpgpyutils/" HEADif the text like "be40eb6871cf353024c22bdd8e4b014b91bc414a        HEAD" was no...