URBAN CARBON · CAMDEN, LONDON

Explore CO₂ across Camden.

Choose an area and scenario, then compare the predicted CO₂ with the baseline.

8 × 8 kmsurrounding model domain10 m grid · 16 height levels

Set a scenario

REFERENCE CASE 16 June 2019 · 19:30 UTC One prediction step

Prediction area

Camden tile

Scenario preset

CO₂ emissions%

Scale emissions relative to the reference case.

50%150%

Wind speed factor%

Scale the reference wind speed. Negative values reverse the reference forcing.

80%100%

Wind direction°

Rotate from the reference direction. Positive angles turn clockwise.

0°15°

Boundary CO₂ forcingppm

Shift the reference boundary CO₂ profile.

−2 ppm+2 ppm

Loading saved weather options…

Choose a scenario and run it to see the maps.

02 · EXPLORE THE RESULTS

Tile prediction

Model height

Calculations run in this browser.

Loading the reference case…

Baseline mean—CO₂ concentration · ppm

Scenario mean—CO₂ concentration · ppm

Mean change—scenario minus baseline · ppm

Prediction time—for the completed calculation

See the change from baseline

Blue means lower CO₂ and red means higher CO₂.

Run a scenario to compare local changes.

Change map contrast

Baseline

Original inputs

N ↑

Baseline map will appear here

—CO₂ · ppm—

Your scenario

Selected emissions

N ↑

Run a scenario to compare

—CO₂ · ppm—

Change

Scenario − baseline

N ↑

Blue means decrease · red means increase

—Change · ppm—

Grey marks excluded cells.Shared concentration scale · colours clipped to the 2nd–98th percentiles

Comparison with PALM

View the published error maps and statistics by height.

The public comparison report covers the original reference case.

For PALM data, contact Fangxin Fang at f.fang@imperial.ac.uk.

Vertical profile at a location

Click or tap a coloured cell on any map.

MAP INSPECTIONMove over or tap a map

Read the concentration and change at a 10 m grid cell.

About this demonstration

The browser applies the Camden CO₂ surrogate using prepared meteorology for saved settings or computes new meteorology for custom settings. The PALM simulation supplies a reference for the original inputs. Tiles overlap and can predict different values at the same location. Choose Whole domain for a single calculation over the full grid. The maps show atmospheric cells inside Camden.

Boundary data comes from the ONS Local Authority Districts, May 2024 (20 m generalised). Contains OS and ONS data.