Search found 27 matches

by lwk1542
Sat Apr 03, 2021 9:50 am America/New_York
Forum: Home
Question: rayleigh radiance computing problem
Replies: 1

rayleigh radiance computing problem

Dr. : I computing rayleigh radiance using a code that is similar to "rayrad.pro" https://oceancolor.gsfc.nasa.gov (/cgi/idllibrary.cgi?dir=atmocorr). However, the result is different with seadas product "Lr". the scatter in the following attachment file shows difference at eight ...
by lwk1542
Wed Mar 17, 2021 12:22 pm America/New_York
Forum: Home
Question: how to estimate AOT for sunglint radiance calculation?
Replies: 1

how to estimate AOT for sunglint radiance calculation?

According to the code in the “atmocor2.c” and “glint.c” files,the sunglint needs to be computed before aerosol estimating. However, the aerosol optical depth is an input variable for sunglint. In the page (https://oceancolor.gsfc.nasa.gov/docs/ocssw/dir_6ccb91f4c2064ceb88562b4f384b06f5.html), I did ...
by lwk1542
Tue Mar 16, 2021 10:04 pm America/New_York
Forum: Home
Question: the link of "HOWTO_Add_a_sensor.txt" file is error
Replies: 3

Re: the link of "HOWTO_Add_a_sensor.txt" file is error

OB.DAAC - SeanBailey wrote: > On which page did you find this link? > > By the way, that file is part of the OCSSW source code distributed as an > optional part of SeaDAS: > https://seadas.gsfc.nasa.gov/downloads/ > (although not as an individually downloadable file) > > Sean this page: https://ocea...
by lwk1542
Sun Mar 14, 2021 3:50 am America/New_York
Forum: Home
Question: the link of "HOWTO_Add_a_sensor.txt" file is error
Replies: 3

the link of "HOWTO_Add_a_sensor.txt" file is error

“an error has occurred. Please use the back button to return to the previous page”. I can not find this file in Github, also.
Can I get this file in other anywhere?
by lwk1542
Tue Jun 11, 2019 9:49 am America/New_York
Forum: Home
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?

thank you very much! I have solved this problem. The detail was replied to gnwiii?
by lwk1542
Tue Jun 11, 2019 9:46 am America/New_York
Forum: Home
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?

thanks, Prof.:     I have solved this problem. It is an environment variable setting problem in python script. Because the "source $OCSSWROOT/OCSSW_bash.env" is a temporary setting in my Linux OS (i do not know the reason). Therefore, I have to set this environment variable ...
by lwk1542
Sun Jun 09, 2019 9:11 pm America/New_York
Forum: Home
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?

sorry for my unclear question!the detail is:   my os and software environment:  VMware workstation Pro 14, ubuntu16.04 X64, seadas7.5.3, anaconda/python3.7.3, pycharm education 2019   my scheme is that using “l2gen” to process MODIS L1B data (MOD021KM.**hdf) by python script...
by lwk1542
Sun Jun 09, 2019 7:52 am America/New_York
Forum: Home
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?

the l2gen can run in terminal. but dont in python. the error is:sh: 1: l2gen: not found.according to google searching result, the environment variable need to be set again in python script. the method is:     new_env=os.env.copy()     new_env['OCSSWROOT'] = '...
by lwk1542
Sat Jun 08, 2019 8:45 am America/New_York
Forum: Home
Question: comand l2gen error: No such file or directory
Replies: 1

comand l2gen error: No such file or directory

harris@ubuntu:~$ l2gen,ifile="/home/quzhou/PycharmProjects/modis/MOD021KM.A2008094.0230.061.2017255063942.hdf",geofile="/home/quzhou/PycharmProjects/modis/MOD03.A2008094.0230.061.2017255024925.hdf",ofile="/home/quzhou/PycharmProjects/modis/Tmodis.HDF"bash: l2gen,ifile=/...
by lwk1542
Fri May 24, 2019 9:20 am America/New_York
Forum: Home
Question: Is the white panel a editor of seadas OCCSW tools?
Replies: 2

Is the white panel a editor of seadas OCCSW tools?

Thank you? Dr. White.     In most processing, I use the IDL/ENVI and python to achieve my goal. But this? the seadas is necessary. I need to achieve atmospheric correction for MODIS with method embedded in seadas. I tried to code in IDL with the Rayleigh and aerosol look-up table of s...