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ALBEDO SIMPLIFIED REFLECTIVENESS NOTICING
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ALBEDO SIMPLIFIED


Albedo is measured by the Solar Reflectivity Index (SRI). The SRI indicates the percentage of solar radiation that is bounced back through the earth’s atmosphere into outer space before it heats up any mass or air.























REFLECTIVENESS

 

White and light coloured horizontal surfaces  


Ice- and snow-covered areas have high albedo.


Ice-covered Arctic and Antarctic areas reflects solar radiation that otherwise would be absorbed by the oceans or thermal converted into atmospheric heat.

The proportion of Earth's surface that is covered by snow and ice has is linked to the absorption of heat.


Low albedo (dark surfaces) leads to higher uptake of energy and, hence, warming.

When more ice and snow melt, there will be more dark surfaces. This is therefore a self-reinforcing effect. Climate change in the Arctic is consequently important for the development of climate change globally.































 




NOTICING




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ALBEDO AND REFLECTIVENESS

Ice-covered Arctic and Antarctic areas reflects solar radiation that otherwise would be absorbed by the oceans or thermal converted into atmospheric heat.

The proportion of Earth's surface that is covered by snow and ice has is linked to the absorption of heat…

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MASS LOSS


In general, areas near the centre of Antarctica experienced small amounts of positive or negative change……


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GREEN HOUSE EFFECT


CO2 sticks around


CO2 remains in the atmosphere longer than the other major heat-trapping gases emitted as a result of human activities. It takes about a decade for methane (CH4) emissions to leave the atmosphere (it converts into CO2) and about a century for nitrous oxide (N2O).


After a pulse of CO2 is emitted into the atmosphere, 40% will remain in the atmosphere for 100 years and 20% will reside for 1000 years, while the final 10% will take 10,000 years to turn over. This literally means that the heat-trapping emissions we release today from our cars and power plants are setting the climate our children and grandchildren will inherit.

ALBEDO

Reflecting back the just amount of sunlight into space before it makes a photo-thermal conversion and heats up the planet.