Dimensions

Everything the map shows is one cell of a five-dimensional cube: a species, a scenario, a source group, a location and an instant. The top bar is the readout of all five; changing one moves the whole view to another cell, and nothing more.

Dimension	Selector	What changes
Species	SPECIES, in the top bar — and the contours list in Layers, which is the same door	The concentration layer, the marker readings, the legend, the Alerts tabs, the Regulatory panel
Scenario	SCENARIO	The emissions: the whole forecast changes plan
Source group	SOURCE GROUP	Total, or one group’s contribution alone
Location	LOCATION — a search box over receptors, sources, monitoring stations and points of interest —, the Receptors panel, an Alerts row, or a click on a marker	Where the view looks: the card, the series, the graphs, and the camera if chosen from a list
Time	The timebar, Controls, the ← → keys, a click on a Series curve	The instant drawn

Three rules

The species is always an air-quality species. Meteorological parameters — temperature, wind, mixing — can be drawn as the contour layer, but never enter the dimension: the top bar never says “viewing temperature”.

A location has a role, and each panel follows the role it cares about. The top bar’s pill says which kind is selected — receptor, source, station, place. Clicking a source opens its card and its emissions; it does not drag the Series panel off the receptor you were reading, because Series follows receptors and stations, not sources. Choosing from a list — the search box, the Receptors panel, an Alerts row — flies the camera there keeping the zoom; clicking a marker does not move the camera, since the marker is already under the cursor.

Alerts live in the total. With a source group chosen, the layer and the markers show that group’s contribution, but a threshold is compared with the sum: the Series panel shows the total and says so, and the timebar’s shading does not change.

What is not a dimension

A layer’s settings — colour ramp, bands, opacity, order, wind style, how markers show — are not dimensions: they change not what is looked at but how it is drawn. They are set in Layers and resolve in tiers: the platform’s registry, the demo, what the demo’s author saved as default, what you saved as your own default, and the session.

The dimensions live in the session: on reload, the view returns to Santiago’s default species, scenario and instant.

→ The map · Comparing a scenario