Search found 4 matches

by tonyjones
Wed Oct 01, 2025 8:41 am America/New_York
Forum: Home
Question: VNP46A3/A4 Manifest Lookup Issues for Multi-Tile Countries (2013-2025) - Systematic Data Access Problem
Replies: 2

Re: VNP46A3/A4 Manifest Lookup Issues for Multi-Tile Countries (2013-2025) - Systematic Data Access Problem

Thank-you for your response. 5200 does have some improvement, though Canada and Russia still fail with a similar failure noted previously. We are using Blackmarble Py and have success in most instances hence are challenged why the outcome is ok in most cases. The USA may have problems in some years ...
by tonyjones
Fri Sep 26, 2025 11:14 pm America/New_York
Forum: Home
Question: VNP46A3/A4 Manifest Lookup Issues for Multi-Tile Countries (2013-2025) - Systematic Data Access Problem
Replies: 2

VNP46A3/A4 Manifest Lookup Issues for Multi-Tile Countries (2013-2025) - Systematic Data Access Problem

Issue Summary I am experiencing systematic data access failures when requesting VNP46A3 (monthly) and VNP46A4 (annual) nighttime lights products for large countries requiring multiple tiles. This issue affects years 2013-2025, while 2012 data access works correctly. The pattern suggests a change in ...
by tonyjones
Tue Sep 23, 2025 6:51 pm America/New_York
Forum: Home
Question: VIIRs Black Marble Data
Replies: 3

Re: VIIRs Black Marble Data

I appreciate your response @LAADS_UserServices_M. Can you elaborate on your last comment: "We are working on operational Black Marble change products."? What are you intending on adding as a product? Timeframe? Finally, are there any other current products that are unaffected by the transi...
by tonyjones
Tue Sep 23, 2025 9:34 am America/New_York
Forum: Home
Question: VIIRs Black Marble Data
Replies: 3

VIIRs Black Marble Data

Is the subject dataset really as valuable as once potentially used to be for economic and industrial trending considering most cities deploy lower wattage lights or have changed their lighting philosophies? I downloaded a few western countries datasets and see drop off in light after 2018 yet we wou...