Forum

Also, see this page.

https://oceancolor.gsfc.nasa.gov/docs/modis_hires/

Norman

"...don't forget to include par=V2020099121800.L1A_JPSS1.nc.anc ...without that, you've pulled the ancillary files but didn't tell l2gen to use them"

Huh.  I've been doing it wrong for a couple of years now.
Thanks for the heads up.

Norman

Hi Andrew,Make sure you have the VIIRSJ1 bundle installed (install_ocssw.py --viirsj1) and thendo something like the following.getanc.py V2020099121800.L1A_JPSS1.ncl2gen ifile=V2020099121800.L1A_JPSS1.nc geofile=V2020099121800.GEO-M_JPSS1.nc ofile=V2020099121800.L2.nc l2prod=rhos_445,rhos_556,rhos_6...

Hi Marco,

That scene and the one before it and the one after it are corrupt (perhaps during
transmission to the ground station).  Sometimes we get better data later from
our providers.

Norman

Hi Amita,

I believe you are correct; you only need to install the mission-related files.

Norman

The latitude and longitude arrays stored in each level-2 file store the locations of every
pixel in the image data, so no, you do not need to re-project to do your match-ups.

Regards,
Norman

Hi all,The missing scene in the browser search results is caused by a logic bug in my browse.plcode that effects mixed day/night granules that span the prime meridian.  Tommy pointedthis one out to me some years ago (I still have a note pinned to my bulletin board atGoddard should we ever get b...

Since level-1 refers to the storage of radiometer data in sensor-viewcoordinates (i.e. scan-line and pixel), it is not possible (by definition) tocombine individual scenes into a daily level-1 file.You can, however, bin individual scenes and combine them into adaily level-3 format.For most of our pr...

I will leave it to others to say why recent MODIS products have not advancedbeyond preliminary quicklook versions, but I do see that fairly recent VIIRSproducts have.  For example, for this file.https://oceandata.sci.gsfc.nasa.gov/cgi/getfile/V2020126055400.L2_SNPP_OC.ncncdump -h V2020126055400...

Hi Moritz,

Please see this post.

https://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?pid=52764#pid52764

Norman