WebAbstract. Light-absorbing impurities (LAIs, e.g. black carbon (BC), organic carbon (OC), mineral dust (MD)) deposited on snow cover reduce albedo and accelerate its melting. Northern Xinjiang (NX) is an arid and semi-arid inland region, where snowmelt leads to frequent floods that have been a serious threat to local ecological security. WebJan 4, 2024 · Light-absorbing impurities (LAIs) (such as black carbon, organic carbon, mineral dust, etc.) deposited onto the snow surface can darken the snow and cause decrease in snow surface albedo,...
Optical properties of ice and snow - Royal Society
WebLight-absorbing impurities (LAIs) deposited in snow have the potential to substantially affect the snow radiation budget, with subsequent implications for snow melt. To more accurately quantify the snow albedo, the contribution from … WebThe ability of light-absorbing impurities (LAI) in darken snow had been ... Weather modification by carbon dust absorption of solar energy. ... receive about 90% of the energy compared to who equator, the mid-latitudes (45°) roughly 70%, the one Arctic the Antarctic Circles about 40%. (NASA instance by Robert Simmon.) ... (incoming radiant ... sanford nc quilt show 2020
Distribution of light-absorbing impurities in snow of glacier on Mt ...
WebThe reduction of snow albedo is primarily due to BC, but other impurities, principally brown (organic) carbon, are typically responsible for ~40% of the visible and ultraviolet … Webin analyzing Arctic snow samples and the higher values of Å (~6 ... indicating similar source types for the snow light-absorbing impurities in these two regions. [52] Snow was somewhat deeper in this region than in Inner Mongolia, averaging 20 cm deep, but varying 18–25 cm, across the five sites sampled. Here and in the northeast industrial ... WebThe ability of light-absorbing impurities (LAI) to darken snow had been known for decades, even inspiring practical applications, but quantification of the radiative forcing awaited radiative-transfer modeling in 1980 and measurement of soot in Arctic snow in 1983-4. Climate-modeling interest in this forcing began in 2004, spurring a modern sanford nc post office number