Forum

Because science team set more stricter QA rules for Collection 6 on ward.

This is a data outage period which is documented at data outage page:
https://modaps.modaps.eosdis.nasa.gov/services/production/outages_aqua.html

In MODIS collection 6.1 datasets (e.g. MOD04_L2), there are four variables relevant to fine model: 1. Optical_Depth_Ratio_Small_Ocean_0.55micron: is the fraction of AOT (at 0.55 micron) contributed by fine mode for average solution. 2. Optical_Depth_Small_Average_Ocean: is the retrieved optical thic...

You can confirm the value from product's file specification at:
https://atmosphere-imager.gsfc.nasa.gov/products/monthly/file-spec

You can find the list of SDS at:
https://atmosphere-imager.gsfc.nasa.gov/products/aerosol/format-content
and under File Specification:
https://atmosphere-imager.gsfc.nasa.gov/products/aerosol/file-spec

VNP46A2 mask Auroras but not fires and gas flares.

We feel like your note is inaccurate. We looked at the granule you suggested, and the QF is all fill, it is a night granule. We looked at a night granule from day 2023070 and it was the same way. Then we looked at a VNP02DNB from 2023223.2306, and it looks like one would expect. We are not seeing an...

1. I understand ephemeral lights are not filtered from the A2 product (am I correct to understand that this means light sources like fires, auroras, gas flares are still present in the data?). Do you happen to know of studies that have made an effort to filter these other light sources from the dail...

Please see the banner at the top of the page and ladsweb alerts:
https://ladsweb.modaps.eosdis.nasa.gov/alerts-and-issues

It is because of a system wide issue (see the banner at the top of this page). Also, visit ladsweb alerts at:
https://ladsweb.modaps.eosdis.nasa.gov/alerts-and-issues