ARCTIC SEA AIR INTERACTION including AASERT
نویسنده
چکیده
LONG TERM GOALS Our long term goal is a quantitative understanding of how the ocean and atmosphere interact in the presence of a sea ice cover, on both local and regional scales. Because the greatest uncertainties in this interaction involve the effects of shortwave radiation on the ice and upper ocean, research is focused on processes that control the vertical distribution, storage, and transport of solar energy within this system. Results from this work should lead to more general and more accurate models for predicting not only the extent and thickness of the arctic ice pack, but also seasonal changes in mixed layer structure and biological activity beneath the ice.
منابع مشابه
Biopolymers form a gelatinous microlayer at the air-sea interface when Arctic sea ice melts
The interface layer between ocean and atmosphere is only a couple of micrometers thick but plays a critical role in climate relevant processes, including the air-sea exchange of gas and heat and the emission of primary organic aerosols (POA). Recent findings suggest that low-level cloud formation above the Arctic Ocean may be linked to organic polymers produced by marine microorganisms. Sea ice...
متن کاملSea-Ice Wintertime Lead Frequencies and Regional Characteristics in the Arctic, 2003-2015
The presence of sea-ice leads represents a key feature of the Arctic sea ice cover. Leads promote the flux of sensible and latent heat from the ocean to the cold winter atmosphere and are thereby crucial for air-sea-ice-ocean interactions. We here apply a binary segmentation procedure to identify leads from MODIS thermal infrared imagery on a daily time scale. The method separates identified le...
متن کاملImpact of the Atlantic Meridional Overturning Circulation (AMOC) on Arctic Surface Air Temperature and Sea-Ice Variability
The simulated impact of the Atlantic Meridional Overturning Circulation (AMOC) on the low frequency variability of the Arctic Surface Air temperature (SAT) and sea-ice extent is studied with a 1000 year-long segment of a control simulation of GFDL CM2.1 climate model. The simulated AMOC variations in the control simulation are found to be significantly anti-correlated with the Arctic sea-ice ex...
متن کاملContribution of sea-ice loss to Arctic amplification is regulated by Pacific Ocean decadal variability
The pace of Arctic warming is about double that at lower latitudes—a robust phenomenon known as Arctic amplification. Many diverse climate processes and feedbacks cause Arctic amplification, includingpositive feedbacks associated with diminished sea ice. However, the precise contribution of sea-ice loss to Arctic amplification remains uncertain. Through analyses of both observations andmodel si...
متن کاملInterannual Variations of Arctic Cloud Types in Relation to Sea Ice
Sea ice extent and thickness may be affected by cloud changes, and sea ice changes may in turn impart changes to cloud cover. Different types of clouds have different effects on sea ice. Visual cloud reports from land and ocean regions of the Arctic are analyzed here for interannual variations of total cloud cover and nine cloud types, and their relation to sea ice. Over the high Arctic, cloud ...
متن کامل