Search found 70 matches
- 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...
- 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...
- Wed Feb 04, 2026 2:28 pm America/New_York
- Forum: Home
- Question: VIIRs Black Marble Data
- Replies: 5
Re: VIIRs Black Marble Data
You can review project page at:
https://blackmarble.gsfc.nasa.gov/
Or see publication like:
https://energyforgrowth.org/article/lighting-the-way-nighttime-lights-for-electrification-planning/
https://blackmarble.gsfc.nasa.gov/
Or see publication like:
https://energyforgrowth.org/article/lighting-the-way-nighttime-lights-for-electrification-planning/
- 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.
- 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.
- 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.
- 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.
Thanks very much for bring this to our attention. We are investigating it and will get back to you soon.
- 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.
Thanks very much for bring this to our attention. We are investigating it and will get back to soon.
- 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...
- 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
https://cmr.earthdata.nasa.gov/stac/LAADS/collections/VNP02IMG_2
similarly:
https://cmr.earthdata.nasa.gov/stac/LANCEMODIS/collections/VNP02IMG_NRT_2