Summer Arctic sea ice albedo in CMIP5 models
نویسندگان
چکیده
منابع مشابه
Albedo evolution of seasonal Arctic sea ice
[1] There is an ongoing shift in the Arctic sea ice cover from multiyear ice to seasonal ice. Here we examine the impact of this shift on sea ice albedo. Our analysis of observations from four years of field experiments indicates that seasonal ice undergoes an albedo evolution with seven phases; cold snow, melting snow, pond formation, pond drainage, pond evolution, open water, and freezeup. On...
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[1] Surface all-wave albedo and physical parameters (grain radius, mass density, surface temperature, and stratification) of an austral summer snow cover on sea ice were measured in the Ross Sea during January-February 1999. It was observed that (1) from north to south the snow surface temperature decreases, albedo increases, snow mass density decreases, snow composite grain radius decreases, a...
متن کاملDecadal to seasonal variability of Arctic sea ice albedo
[1] A controlling factor in the seasonal and climatological evolution of the sea ice cover is its albedo a. Here we analyze Arctic data from the Advanced Very High Resolution Radiometer (AVHRR) Polar Pathfinder and assess the seasonality and variability of broadband albedo from a 23 year daily record. We produce a histogram of daily albedo over ice covered regions in which the principal albedo ...
متن کاملFuture abrupt reductions in the summer Arctic sea ice
[1] We examine the trajectory of Arctic summer sea ice in seven projections from the Community Climate System Model and find that abrupt reductions are a common feature of these 21st century simulations. These events have decreasing September ice extent trends that are typically 4 times larger than comparable observed trends. One event exhibits a decrease from 6 million km to 2 million km in a ...
متن کاملAssessment of sea ice simulations in the CMIP5 models
The historical simulations of sea ice during 1979 to 2005 by the Coupled Model Intercomparison Project Phase 5 (CMIP5) are compared with satellite observations, Global Ice-Ocean Modeling and Assimilation System (GIOMAS) output data and Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS) output data in this study. Forty-nine models, almost all of the CMIP5 climate models and earth sys...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2014
ISSN: 1680-7324
DOI: 10.5194/acp-14-1987-2014