Sentences with phrase «albedo by grain»

Since the reduction of albedo by grain growth is confined to the near infrared, it is mostly invisible to our eyes.

Not exact matches

Simulating the variation of the ice sheet's albedo using a regional climate model — Modèle Atmosphérique Régionale (MAR), which some members of the team helped develop — indicated that increasing temperatures and melting accompanied by snow grain growth and greater bare ice exposure account for about half the decline, the scientists report.

When the snow grains were assumed nonspherical, snow albedo was increased slightly, typically by 2 - 3 percentage units.

snow albedo) was modified in the NorESM climate model, by replacing an approach based on spherical snow grains with an approach assuming nonspherical snow grains.

The more soot, the more darkening, but as little as a few parts per billion by weight reduces the albedo of pure snow (that is, collections of grains of ice) by a few per cent in the visible part of the spectrum.

For pure snow, grain growth from new snow (grains around 0.1 millimeter in radius) to old melting snow (radius around 1 millimeter) can reduce broadband albedo by around 10 %.