Search found 41 matches

by yang16
Sun Apr 17, 2022 3:05 am America/New_York
Forum: Questions/Comments
Question: install_ocssw script can't find OCSSW_bash.env
Replies: 4

Re: install_ocssw script can't find OCSSW_bash.env

Hello Sean, I met a similar problem when I installed OCSSW for seadas-7.5.3 in ubuntu20.04. After I installed seadas-7.5.3, I installed OCSSW following this website: https://seadas.gsfc.nasa.gov/tutorials/installation_tutorial/ However, I got the error in the attached photo when I ran "./instal...
by yang16
Fri Apr 15, 2022 1:41 am America/New_York
Forum: Questions/Comments
Question: OCSSW installation
Replies: 8

Re: OCSSW installation

Thank you for your reply again! When I ran "ls -al /tmp", I got below: 1.png I think I already installed ocssw bundles. By the way, I installed OCSSW following this webiste (https://seadas.gsfc.nasa.gov/tutorials/installation_tutorial/) and I already download the Git bundles, README, OCSSW...
by yang16
Thu Apr 14, 2022 11:32 am America/New_York
Forum: Questions/Comments
Question: OCSSW installation
Replies: 8

Re: OCSSW installation

Hello Xuanyang,

Thank you very much for your reply. When I tried your first code, I got the same error as before. So I think I may need to download this file: OCSSW_bash.env.v7.5.3 and put it into /tmp. Do you know where to download this file?

Yes, I could run your second code.

Kind regards,
Sunny.
by yang16
Thu Apr 14, 2022 3:21 am America/New_York
Forum: Questions/Comments
Question: OCSSW installation
Replies: 8

OCSSW installation

Dear EARTHDATA Forum, When I ran this command "./install_ocssw.py --install-dir=seadas-7.5.3 /home/mmy/seadas-7.5.3/ocssw --git-branch=v7.5.3 --local=/tmp --aqua –seawifs" , I got the error as shown in the attached file. I may need to download this file "OCSSW_bash.env.v7.5.3" an...
by yang16
Thu Aug 05, 2021 7:06 pm America/New_York
Forum: Questions/Comments
Question: OCSSW configuration
Replies: 2

Re: OCSSW configuration

Thank you for your reply! Indeed, I made a mistake of my [SeaDAS_install_dir] which should be '/home/mmy/seadas-7.5.3/'.

Good to know the udpate of seadas. I will try it later.

Thank you,
Mengmeng.
by yang16
Thu Aug 05, 2021 5:59 am America/New_York
Forum: Questions/Comments
Question: OCSSW configuration
Replies: 2

OCSSW configuration

Hello! After I install seadas-7.5.3 and ocssw under ubuntu, I ran the following commands in the terminal window: export OCSSWROOT=[SeaDAS_install_dir]/ocssw source $OCSSWROOT/OCSSW_bash.env My [SeaDAS_install_dir] is /Home/seadas-7.5.3/ocssw, and I have OCSSW_bash.env under [SeaDAS_install_dir], but...
by yang16
Fri Jul 02, 2021 10:38 pm America/New_York
Forum: Questions/Comments
Question: How to convert airborne radiance to reflectance?
Replies: 7

Re: How to convert airborne radiance to reflectance?

Hello,

No, I do not need further assistance for now. Thank you for your kind support.

Kind regards,
Mengmeng.
by yang16
Fri Jul 02, 2021 8:33 am America/New_York
Forum: Questions/Comments
Question: How to convert airborne radiance to reflectance?
Replies: 7

Re: How to convert airborne radiance to reflectance?

Hello,

I found one method to convert the airborne at-sensor radiance to at-sensor reflectance (Hanuš et al., 2016). In this method, the at-sensor reflectance (also called apparent reflectance) was calculated by dividing the at-sensor radiance by the downwelling irradiance.

Kind regards,
Mengmeng.
by yang16
Wed Jun 30, 2021 8:16 pm America/New_York
Forum: Questions/Comments
Question: How to convert airborne radiance to reflectance?
Replies: 7

Re: How to convert airborne radiance to reflectance?

Dear NASA Langley ASDC User Services,

I do not know the project/collection of my data, but I only know the data was collected on April 23, 2019 from CASI-1500. My data is the calibrated radiance data in BIP format.

Thank you.
Kind regards,
Mengmeng.
by yang16
Wed Jun 30, 2021 1:45 am America/New_York
Forum: Questions/Comments
Question: How to convert airborne radiance to reflectance?
Replies: 7

Re: How to convert airborne radiance to reflectance?

Dear NASA Langley ASDC User Services, Thank you very much for your advice. Specifically, I want to convert radiance to remote sensing reflectance for CASI-1500 sensor. From the ITRES Standard Processing Manual, I only found the info. that an optical sensor (Incident Light Sensor) used with CASI meas...