Data Features
Whole Generative Process
The whole generative process is comprised of few stages, from data collection, to data analysis, data mapping and algorithm generation.
Data collection: Environmental satellites see pollutants through its radiation wavelength. Twin Cloud collects atmospheric data from the Copernicus Environmental Satellites Datasets.
Data analysis: The project performs horizontal comparison of the atmospheric data for 300 cities and generate a rank for the degree and type of pollutions.
Data mapping & Algorithm Generation: The final datasets include location, weather conditions and atmospheric compositions that give shape, movement, color and music to each unique cloud.
City location (longitude & latitude) affects cloud movement.
Humidity and temperature affect cloud particle color.
18 Atmospheric chemicals (greenhouse gases, aerosols and etc.) affect cloud color.
Degree of pollution affect cloud saturation and darkness.
Anthropogenic sources of pollutant affects music type.
More severe pollution will produce darker and more saturated clouds. Conversely, the closer the cloud is to white, the better the air quality in the region.
What can you read from each cloud's color?
Chemical compounds in the air
Anthropogenic or natural sources
Five Typical Anthropogenic and Natural Sources of Atmospheric Chemicals
Type 1: Industrial Activities - Red & Orange Tone
Type 2: Urban Activities - Pink & Purple Tone
Type 3: Oceanic Activities - Blue Tone
Type 4: Desertification - Yellow Tone
Type 5: Lighting and Forestation - Green Tone
Type 1
Industrial activities release greenhouse gases, such as black carbon aerosol, carbon monoxide, nitrogen monoxide, nitrogen dioxide and ozone. They are visualized as red-orange tone in cloud.
Sources:
Factory fossil fuel incomplete burning
Biomass burning
Explosives and welding
Volcanic action
Automobile exhaust
The central graphic shows that greenhouse gases are typically detected by environmental satellites through its radiation wavelength.
Type 2
Urban activities release aerosol pollutants and secondary pollutants, such as sulphur dioxide, peroxyacetyl nitrate, nitrate aerosol, sulphate aerosol, and organic matter aerosol. It is visualized through pink-purple tone in the cloud.
Sources:
Incomplete burning of sulphur related fuels
Vehicle exhaust
Cooking and consumer products
Tobacco Smoking
Heat and power generation
Photochemical smog (results)
The central graphic shows that aerosol particles are typically detected by environmental satellites through its radiation wavelength.
Type 3
Ocean-wave activities propels salt particles into air, then forming sea-salt aerosol. These particles then serve as cloud condensation nuclei and lead to cloud formation. It is visualized through blue-tone in the cloud.
The central graphic shows the size change of sea salt aerosol across globe.
Type 4
Dust aerosol and ammonium aerosol lead to haze, fog and dust storm in the city. It may further cause soil acidification, water eutrophication and desertification. It is visualized through yellow-tone in the cloud.
Sources:
Ware fare
Deforestation & desertification
Agricultural fertilizer
Biological excretion in animal husbandry
Type 5
Methane and ethene and isoprene usually comes from a natural or agriculture source. Hydrogen peroxide and hydroxyl radicals are reactive oxygen species that shows atmosphere's self-cleasing ability. It is visualized through green-tone in the cloud.
Sources:
Agriculture
Wetland in forest
Landfill
Natural gas leak
Plant photosynthesis
Lightning
Last updated