Search found 269 matches

by LAADS_UserServices_M
Mon Sep 11, 2023 11:10 am America/New_York
Forum: Questions/Comments
Question: VIIRS NOAA21
Replies: 1

Re: VIIRS NOAA21

We are hoping to have NOAA21 VIIRS data available from LAADS by the end of the year. We will post a product release notice on ladsweb (https://ladsweb.modaps.eosdis.nasa.gov/alerts-and-issues/) page once the data are available for download.
by LAADS_UserServices_M
Mon Sep 11, 2023 10:38 am America/New_York
Forum: Questions/Comments
Question: Downloading Individual MODIS bands
Replies: 1

Re: Downloading Individual MODIS bands

You can extract each layer by performing parameter subsetting using LAADS Post-Processing tools from LAADS “Find Data” Interface: https://ladsweb.modaps.eosdis.nasa.gov/search/ If you are new to ladsweb, you can consult the post processing tutorial at: https://ladsweb.modaps.eosdis.nasa.gov/learn/ho...
by LAADS_UserServices_M
Mon Sep 11, 2023 10:06 am America/New_York
Forum: Questions/Comments
Question: VIIRS Spectral AOT Access
Replies: 1

Re: VIIRS Spectral AOT Access

All SDSs available in each level 2 and level 3 product are listed at:
https://ladsweb.modaps.eosdis.nasa.gov/missions-and-measurements/science-domain/aerosol/#viirs
by LAADS_UserServices_M
Wed Sep 06, 2023 9:20 am America/New_York
Forum: Questions/Comments
Question: Re-griding the MODIS Aqua L2 cloud product.
Replies: 1

Re: Re-griding the MODIS Aqua L2 cloud product.

Dear Aakash Kumar: To be more accurate, the user can use the 1-km “Latitude” and “Longitude” (2030x1354) from MYD03, to identify how many 1-km cloud microphysical properties pixels fall within 5-km cloud top properties pixel. For example, assume “number_of_1km” pixels fall in a 5-km pixel, they can ...
by LAADS_UserServices_M
Thu Aug 24, 2023 1:22 pm America/New_York
Forum: Questions/Comments
Question: MYD021KM data missing in 2009/11/25
Replies: 3

Re: MYD021KM data missing in 2009/11/25

Because science team set more stricter QA rules for Collection 6 on ward.
by LAADS_UserServices_M
Tue Aug 22, 2023 11:26 am America/New_York
Forum: Questions/Comments
Question: MYD021KM data missing in 2009/11/25
Replies: 3

Re: MYD021KM data missing in 2009/11/25

This is a data outage period which is documented at data outage page:
https://modaps.modaps.eosdis.nasa.gov/services/production/outages_aqua.html
by LAADS_UserServices_M
Tue Aug 22, 2023 7:18 am America/New_York
Forum: Questions/Comments
Question: Fine mode fraction aerosol over ocean in MODIS SDS
Replies: 3

Re: Fine mode fraction aerosol over ocean in MODIS SDS

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...
by LAADS_UserServices_M
Fri Aug 18, 2023 6:56 am America/New_York
Forum: Questions/Comments
Question: CTT variable incorrect range
Replies: 1

Re: CTT variable incorrect range

You can confirm the value from product's file specification at:
https://atmosphere-imager.gsfc.nasa.gov/products/monthly/file-spec
by LAADS_UserServices_M
Fri Aug 18, 2023 6:40 am America/New_York
Forum: Questions/Comments
Question: Black Marble NTL data (VNP46A2)
Replies: 5

Re: Black Marble NTL data (VNP46A2)

VNP46A2 mask Auroras but not fires and gas flares.