The Physical Representation of Bare Ice Albedo in Radiative Transfer Models and the Implications on Greenland Ice Sheet Albedo and Surface Mass Balance ...
Accurate modeling of cryospheric surface albedo is essential for our understanding of climate change as snow and ice surfaces regulate the global radiative energy budget and sea level through their albedo and mass balance. Although significant progress has been made using physical principles to repr...
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Format: | Article in Journal/Newspaper |
Language: | English |
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My University
2023
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Online Access: | https://dx.doi.org/10.7302/23130 http://deepblue.lib.umich.edu/handle/2027.42/193485 |
Summary: | Accurate modeling of cryospheric surface albedo is essential for our understanding of climate change as snow and ice surfaces regulate the global radiative energy budget and sea level through their albedo and mass balance. Although significant progress has been made using physical principles to represent the dynamic albedo of snow, models of land ice albedo tend to be heavily parameterized and not explicitly connected with physical properties that govern albedo, such as the number and size of air bubbles, specific surface area, and presence of abiotic and biotic light absorbing constituents (LACs). The lack of physically based and computationally efficient ice albedo models has led to unrealistic bare ice albedo representations in Earth System Models (ESMs). For example, many ESMs prescribe a constant albedo over ice surfaces. However, it is increasingly important that ESMs capture the spatially, temporally, and spectrally varying ice albedo as polar temperatures are rapidly increasing, and more bare ice is ... |
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