Search found 21 matches
- Thu Jul 24, 2025 7:36 am America/New_York
- Forum: Home
- Question: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
- Replies: 13
Re: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
While you may find this post (https://forum.earthdata.nasa.gov/viewtopic.php?t=7029) useful, what I am doing is: (1) using the "pin placing tool" to specify the specific pixels you want, (2) click the "spectrum view", where you can generate the spectra for the pins you added in s...
- Wed Jul 23, 2025 11:02 am America/New_York
- Forum: Home
- Question: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
- Replies: 13
Re: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
I am not clear how your MATLAB script works but how did you get the numbers in "Rrs_band"?
Minwei
Minwei
- Wed Jul 23, 2025 10:20 am America/New_York
- Forum: Home
- Question: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
- Replies: 13
Re: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
Thanks Andy for the note.
Please note Rrs in the wavelength range of 588-613 nm are not generated in this L2 file.
Minwei
Please note Rrs in the wavelength range of 588-613 nm are not generated in this L2 file.
Minwei
- Wed Jul 23, 2025 10:13 am America/New_York
- Forum: Home
- Question: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
- Replies: 13
Re: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
I am using SeaDAS to export the spectra.
Minwei
Minwei
- Wed Jul 23, 2025 9:48 am America/New_York
- Forum: Home
- Question: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
- Replies: 13
Re: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
Hi Cassandra,
This is the spectra I got from the L2 file for the pixel you provided. I didn't see the sharp drop. Please let me know for further questions. Best,
Minwei
This is the spectra I got from the L2 file for the pixel you provided. I didn't see the sharp drop. Please let me know for further questions. Best,
Minwei
- Tue Jul 22, 2025 10:40 am America/New_York
- Forum: Home
- Question: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
- Replies: 13
Re: Sharp Drop in PACE Rrs Between 553 nm and 555 nm
Hi Cassandra,
It will help if you could post the granule name as well as the ___location of this pixel.
Best,
Minwei
It will help if you could post the granule name as well as the ___location of this pixel.
Best,
Minwei
- Fri Jun 20, 2025 9:08 am America/New_York
- Forum: Home
- Question: Question About RRS_443 Variability in MODIS Aqua L2 Data
- Replies: 6
Re: Question About RRS_443 Variability in MODIS Aqua L2 Data
Hi Cassandra,
You can find the flag information here: https://oceancolor.gsfc.nasa.gov/resources/atbd/ocl2flags/
Best,
Minwei
You can find the flag information here: https://oceancolor.gsfc.nasa.gov/resources/atbd/ocl2flags/
Best,
Minwei
- Wed Jun 18, 2025 3:08 pm America/New_York
- Forum: Home
- Question: Question About RRS_443 Variability in MODIS Aqua L2 Data
- Replies: 6
Re: Question About RRS_443 Variability in MODIS Aqua L2 Data
Hi, The high temporal variability could be an artifact, possibly results from the atmospheric correction. This region from those two MODIS granules has a relative humidity higher than 95%, which is the upper threshold of the aerosol LUTs used for atmospheric correction. Under this situation, the aer...
- Mon Feb 10, 2025 1:56 pm America/New_York
- Forum: Home
- Question: PACE-OCI Level-2 AOP & other OC product processing questions
- Replies: 2
Re: PACE-OCI Level-2 AOP & other OC product processing questions
Hi Sami,
(1) yes, MBAC is used for the atmospheric correction of PACE OCI.
(2) Each sensor has its own default parameters, which are used by generating the OB.DAAC ocean color products. But you can always change these paramters.
Best,
Minwei
(1) yes, MBAC is used for the atmospheric correction of PACE OCI.
(2) Each sensor has its own default parameters, which are used by generating the OB.DAAC ocean color products. But you can always change these paramters.
Best,
Minwei
- Tue Oct 08, 2024 11:10 am America/New_York
- Forum: Home
- Question: support of other aer_opt options for PACE-OCI processing
- Replies: 2
Re: support of other aer_opt options for PACE-OCI processing
Hi Zhigang, Here is the reference for aer_opt=-18, which is called MBAC atmospheric correction algorithm. https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2019.00116/full OCI does not currently work with some of the alternate aerosol selection methods (such as MUMM), as the ...