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Abstract
Arctic sea ice has been on the decline over the past several decades, and multi-year sea ice has decreased significantly in its areal share of the overall sea ice cover. Changes in several key variables such as radiative balances, albedo, ice surface temperature, and ice thickness have driven much of the decline, but the motion of sea ice makes studying the effects of these variables on individual parcels difficult. Previous studies have observed changes in the means of these variables and their impacts on sea ice concentration, but an accessible database of Lagrangian tracked data is not yet available for study. In order to address this, a database has been developed at the University of Colorado Boulder that performs Lagrangian tracking on individual sea ice parcels and saves coincident ancillary thermodynamic and dynamic variables for each parcel on a weekly timescale.
Highlights
As the Arctic continues to transition toward an ice-free summer, stakeholders in the region will benefit from a greater understanding of the variables that drive the loss of sea ice in the region
The decline of overall ice extent in the Arctic has corresponded with a significant drop in the percent areal share of multi-year sea ice floes, which has weakened the Arctic ice against future climate forcing [1,2]
Further investigation of the variables that influence these changes is necessary in order to better forecast the melting of Arctic sea ice, and to quantify the conditions of the remaining ice
Summary
As the Arctic continues to transition toward an ice-free summer, stakeholders in the region will benefit from a greater understanding of the variables that drive the loss of sea ice in the region. Further investigation of the variables that influence these changes is necessary in order to better forecast the melting of Arctic sea ice, and to quantify the conditions of the remaining ice. The near-continual movement of most sea ice parcels in the Arctic exposes them to different regimes and climate conditions throughout a given year. The near-continual movement of most sea ice parcels in the Arctic exposes them to different regimes and climate conditions throughout a given year This creates a need to better quantify how the ice responds to the variable conditions it encounters in order to improve forecasts and to better understand the changing ice conditions in specific regions. It has been created to provide a comprehensive set of data that will assist in studying sea ice changes in the Arctic by combining sea ice tracks, surface temperatures, concentration, thicknesses, and radiative variables into one searchable database for each year
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