Lunar radiance removal

VIIRS Sensor Data Record
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leonidas
Posts: 11
Joined: Fri Aug 31, 2018 12:17 pm

Lunar radiance removal

Post by leonidas »

How can I remove lunar radiance from VIIRS DNB files?
I have already converted hdf5/SDR files to geotiffs using satpy.
leonidas
Posts: 11
Joined: Fri Aug 31, 2018 12:17 pm

Re: Lunar radiance removal

Post by leonidas »

I have found Cao's method [1] which is based on Spectral Lunar Ιrradiance model (MT2009) [2].
I tried that but I end up with an overcorrection...
Did anyone try that formula?


[1] Cao, C., Shao, X., & Uprety, S., Detecting Light Outages After Severe Storms Using the S-NPP/VIIRS Day/Night Band Radiances, IEEE Geoscience and Remote Sensing Letters, 10(6), 1582–1586 (2013). http://dx.doi.org/10.1109/LGRS.2013.2262258

[2] Miller, S., & Turner, R., A Dynamic Lunar Spectral Irradiance Data Set for NPOESS/VIIRS Day/Night Band Nighttime Environmental Applications, IEEE Transactions on Geoscience and Remote Sensing, 47(7), 2316–2329 (2009). http://dx.doi.org/10.1109/TGRS.2009.2012696
davidh
Posts: 115
Joined: Tue Jun 04, 2013 11:19 am

Re: Lunar radiance removal

Post by davidh »

Leonidas,

We talked a little on the pytroll slack. What you are trying to do (correcting DNB for lunar radiance) is not something our team is actively trying to accomplish. Additionally, I am just a programmer and don't do research with the data we create software for. I would suggest contacting the people whose papers you linked to to discuss possible solutions. If there is something CSPP LEO or Polar2Grid or SatPy can do to make this research easier, let me know.

Dave
leonidas
Posts: 11
Joined: Fri Aug 31, 2018 12:17 pm

Re: Lunar radiance removal

Post by leonidas »

David,
Thank you for your clarification and your contribution! I have already contacted them. I haven't received a response. Thanks again!
onion5376
Posts: 1
Joined: Fri Aug 30, 2019 7:53 am

Re: Lunar radiance removal

Post by onion5376 »

Hi, leonidas
Recently, I also try to process viirs DNB data. The problem "how to remove lunar radiance" stuck with me long time too. Do you have dealt with it? In addition, I also find that the satpy package in python can be used to process DNB data. But, I did not get some examples about processing this data in satpy, would you give me some help?

Best wishes, onion
riskov
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Joined: Sat Oct 17, 2020 2:30 am
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Re: Lunar radiance removal

Post by riskov »

who was able to solve this problem?
leonidas
Posts: 11
Joined: Fri Aug 31, 2018 12:17 pm

Re: Lunar radiance removal

Post by leonidas »

riskov wrote:who was able to solve this problem?
Please take a look at:
https://ieeexplore.ieee.org/document/9151187
https://www.spiedigitallibrary.org/conf ... hort?SSO=1
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