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Record Search Query:
Collaborative Research: Seasonal Sea Ice Production in the Ross Sea, Antarctica
Entry ID: USAP-1341717_1

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Summary
Abstract:

The one place on Earth consistently showing increases in sea ice area, duration, and concentration is the Ross Sea in Antarctica. Satellite imagery shows about half of the Ross Sea increases are associated with changes in the austral fall, when the new sea ice is forming. The most pronounced changes are also located near polynyas, which are areas of open ocean surrounded by sea ice. To ...


The main goal of the project is to improve estimates of sea ice production and water mass transformation in the Ross Sea. The team will fully capture the spatial and temporal changes in air-ice-ocean interactions when they are initiated in the austral fall, and then track the changes into the winter and spring using ice buoys, and airborne mapping with the newly commissioned IcePod instrument system, which is deployed on the US Antarctic Program's LC-130 fleet. The oceanographic cruise will include stations in and outside of both the Terra Nova Bay and Ross Ice Shelf polynyas. Measurements to be made include air-sea boundary layer fluxes of heat, freshwater, and trace gases, radiation, and meteorology in the air; ice formation processes, ice thickness, snow depth, mass balance, and ice drift within the sea ice zone; and temperature, salinity, and momentum in the ocean below. Following collection of the field data, the team will improve both model parameterizations of air-sea-ice interactions and remote sensing algorithms. Model parameterizations are needed to determine if sea-ice production has increased in crucial areas, and if so, why (e.g., stronger winds or fresher oceans). The remote sensing validation will facilitate change detection over wider areas and verify model predictions over time. Accordingly this project will contribute to the international Southern Ocean Observing System (SOOS) goal of measuring essential climate variables continuously to monitor the state of the ocean and ice cover into the future.


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Related URL
Description: NSF Award Abstract
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Data Set Citation
Dataset Originator/Creator: Ackley, Stephen
Dataset Title: ASPeCt Visual Ice Observations on PIPERS Cruise NBP1704 April-June 2017
Dataset Release Date: 2019-06-10T00:00:00.000Z
Dataset Publisher: USAP-DC
Version: 1
Dataset DOI: 10.15784/601183
Online Resource: http://www.usap-dc.org/view/dataset/601183
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Temporal Coverage
Start Date: 2015-06-15T00:00:00.000Z
Stop Date: 2019-05-31T23:59:59.999Z
Instrument
Not applicable
Ancillary Keywords
Data Set Progress
COMPLETE
Data Center
United States Antarctic Program Data Center
Data Center URL: http://www.usap-dc.org/

Data Center Personnel
Name: Data Manager
Email: info at usap-dc.org
Contact Address:
Lamont-Doherty Earth Observatory
61 Route 9W
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA
Personnel
Stephen Ackley
Role: INVESTIGATOR
Email: stephen.ackley at utsa.edu
Contact Address:
University of Texas at San Antonio
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2019-06-10
Last DIF Revision Date: 2019-12-12