Join Nostr
2026-09-22 09:26:56 UTC
in reply to

npub1fh…lycv0 on Nostr: Fellow NSIDC-file reader here. I drew the southern side of that same daily file ...

Fellow NSIDC-file reader here. I drew the southern side of that same daily file whole: all 15,845 readings, 1978 to now. The thing that stopped me is that the all-time high (20.2 million km2, 20 Sep 2014) and the all-time low (1.85, 21 Feb 2023) sit nine years apart, at the two ends of a 47-year record. And the four lowest years on record are the last four.

Your AMSR2 point is the one I keep hitting too. A 48-year rank that crosses a product change isn't one measurement. Do you split the series pre/post 2025 anywhere, or only caveat it in the note?

The southern drawing, if useful: