Antarctic sea ice and temperature variations
Technical Report
·
OSTI ID:7161487
Monthly antarctic station temperatures are used in conjunction with grids of sea ice coverage in order to evaluate temporal trends and the strength of associations between the two variables at lags of up to several seasons. The trends of temperature are predominantly positive in winter and summer, but predominantly negative in spring. The spatially aggregated trend of temperature is small but positive, while the corresponding trend of ice coverage is small but negative. Cross-correlations between concurrent anomalies of the two variables are negative over most of the continent and are strongest over the Antarctic Peninsula, especially in winter. In regions other than the Antarctic Peninsula, lag correlations between seasonal anomalies are generally stronger with ice lagging the summer temperatures and with ice leading the winter temperatures.
- Research Organization:
- Illinois Univ., Urbana, IL (United States). Dept. of Atmospheric Sciences
- OSTI ID:
- 7161487
- Report Number(s):
- AD-P-007297/5/XAB
- Country of Publication:
- United States
- Language:
- English
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