Global surface record · updated 07:00 UTC
The planet is a time series. Read it.
Longwave fuses satellite imagery with the major climate reanalyses and renders them as one instrument — temperature anomaly, emissions, ice loss and heat risk, every cell on Earth, queryable. Built for the analysts, insurers and agencies who have to act on the number, not admire it.
- CO₂ · Mauna Loa
- 424.1 ppm
- Sea level · since 1993
- +104 mm
- Arctic ice · Sept min
- 4.28 M km²
[ 01 · Layers ]
Four instruments. One sphere.
Every layer is the same globe seen through a different sensor stack. Toggle a card to composite it onto the render — the legend and the headline metric follow whatever you switch on last.
[ 02 · Signal ]
Forty-five years, one warming line.
The global temperature record from 1980 to 2024, each year a stripe on the same diverging scale as the globe. Scrub the timeline to read any year — or let it play back the trend.
[ 03 · Method ]
From photons to a decision.
Every number on this page is the tail of a pipeline. Nothing is a single reading — it is reconciled across sensors, gridded, and checked against the reanalysis before it earns a color.
- 01
Ingest
Optical, thermal and radar passes plus ground stations and ocean buoys land in a common store — hundreds of tiles an hour, each timestamped and geolocated.
- 02
Align
Scenes are orthorectified onto a shared equal-area grid so a cell in 1994 and a cell today describe the same patch of Earth. Clouds, sensor drift and orbit gaps are masked.
- 03
Model
Gridded observations are blended with the reanalysis to fill gaps and estimate anomaly, flux and risk per cell — with an uncertainty band travelling alongside every value.
- 04
Deliver
The result is a queryable surface: pull a region, a layer and a window, get a number, a trend and a confidence — as an API, a tile set, or the globe you are looking at.
The signal is not subtle anymore.
Put the whole planet under one cursor.
Longwave is a design-showcase concept — the data here is synthetic. The instrument, however, is real code. Ask for the technical brief.