Satellite and Model Data
Alberta CO2 Map
Carbon dioxide over Alberta, day by day. The left map models the province's own contribution for every day in the record; the right map shows what NASA's OCO-2 and OCO-3 satellites measured. Hover over or tap a cell to read both maps at once.
Talk to Our TeamAlberta's Own Contribution
Modelled carbon dioxide from Alberta's own sources, with the global background removed. Blue cells sit below the background, red above it.
Observed by Satellite
Readings taken by NASA's OCO-2 and OCO-3 satellites on this day. The narrow ribbons follow each satellite's ground track.
Satellite CO2 observations: NASA OCO-2 and OCO-3 (GES DISC). Modelled values: Carbon Assessors. Full citation: Data Sources and Notices.
Two Maps, Two Scales
The left map shows how far each cell sits above or below the global background, so its colours are centred on zero. The right map shows the measured concentration, in the low 400s ppm. Both scales stay fixed across the whole record, so a quiet day looks quiet.
Why the Right-Hand Map Is Often Empty
Each satellite pass covers only a narrow strip, and on more than half of all days neither satellite crosses Alberta. The left-hand map fills in the days and places they miss.
Zooming and Panning
Hold Ctrl (⌘ on a Mac) and scroll, pinch on a trackpad, double-click a map, or use the − and + buttons. Past 2.5× the maps draw the real 5 km hexagons. Drag to pan; both maps move together. Press Esc to clear the readout.