Search found 70 matches

by LAADS_UserServices_M
Thu Feb 12, 2026 10:47 am America/New_York
Forum: Home
Question: Converting DMSP to VIIR
Replies: 1

Re: Converting DMSP to VIIR

We can address questions related to the Nighttime Lights (NTL) product specifications, but are unable to provide guidance on individual research or methodological approaches. For additional NTL product details, refer to the Product ATBD and the corresponding User Guide: https://ladsweb.modaps.eosdis...
by LAADS_UserServices_M
Tue Feb 10, 2026 12:27 pm America/New_York
Forum: Home
Question: How to implement an anisotropic Gaussian filter with position-dependent σ from a viewing angle raster?
Replies: 1

Re: How to implement an anisotropic Gaussian filter with position-dependent σ from a viewing angle raster?

We can address questions related to the Black Marble product specifications, but are unable to provide guidance on individual research or methodological approaches. We would also like to note that the spatial resolution of the Black Marble product is 15 arc-seconds, rather than 500 meters. For addit...
by LAADS_UserServices_M
Tue Feb 03, 2026 6:59 am America/New_York
Forum: Home
Question: 502 error downloading MOD07_L2
Replies: 4

Re: 502 error downloading MOD07_L2

Great, thanks for confirming it.
by LAADS_UserServices_M
Mon Feb 02, 2026 2:37 pm America/New_York
Forum: Home
Question: 502 error downloading MOD07_L2
Replies: 4

Re: 502 error downloading MOD07_L2

We are having some issue with our OPeNDAP service and the infrastructure team is investigating. Hopefully, this should be fixed soon.
by LAADS_UserServices_M
Fri Jan 30, 2026 8:22 am America/New_York
Forum: Home
Question: Difference in number of granules between VNP46A3 V1 and V2
Replies: 3

Re: Difference in number of granules between VNP46A3 V1 and V2

All granules should be available now.
by LAADS_UserServices_M
Thu Jan 29, 2026 12:18 pm America/New_York
Forum: Home
Question: Difference in number of granules between VNP46A3 V1 and V2
Replies: 3

Re: Difference in number of granules between VNP46A3 V1 and V2

Dear Cherif:
Thanks very much for bring this to our attention. We are investigating it and will get back to you soon.
by LAADS_UserServices_M
Thu Jan 29, 2026 12:17 pm America/New_York
Forum: Home
Question: Difference in number of granules between VNP46A3 V1 and V2
Replies: 3

Re: Difference in number of granules between VNP46A3 V1 and V2

Dear Cherif:
Thanks very much for bring this to our attention. We are investigating it and will get back to soon.
by LAADS_UserServices_M
Thu Dec 11, 2025 11:40 am America/New_York
Forum: Home
Question: Some questions about MYD
Replies: 1

Re: Some questions about MYD

You can retrieve Latitude and Longitude from MYD03 product, which are at 1km resolution and consistent with "Cloud_Effective_Radius_16" et al. in MYD06_L2. Just retrieve the following variables from C6.1 MYD03 product: MODIS_Swath_Type_GEO/Geolocation_Fields/Latitude MODIS_Swath_Type_GEO/G...
by LAADS_UserServices_M
Wed Dec 10, 2025 9:12 am America/New_York
Forum: Home
Question: VNP02IMG STAC provider
Replies: 2

Re: VNP02IMG STAC provider

The provider for VNP02IMG is "LAADS" and provider for VNP02IMG_NRT is "LANCEMODIS".

https://cmr.earthdata.nasa.gov/stac/LAADS/collections/VNP02IMG_2
similarly:
https://cmr.earthdata.nasa.gov/stac/LANCEMODIS/collections/VNP02IMG_NRT_2