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The impacts of ENSO and AO/NAO on the interannual variability of Great Lakes ice cover / Xuezhi Bai, Jia Wang, Cynthia Sellinger, Anne Clites, and Raymond Assel.
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View online- Format:
- Book
- Government document
- Author/Creator:
- Bai, Xuezhi
- Series:
- NOAA technical memorandum GLERL ; 152.
- GLERL contribution ; no. 1561.
- NOAA technical memorandum GLERL ; 152
- GLERL contribution ; no. 1561
- Language:
- English
- Subjects (All):
- Ice on rivers, lakes, etc--Great Lakes (North America).
- Ice on rivers, lakes, etc.
- Sea ice--Great Lakes (North America).
- Sea ice.
- El Niño Current--Environmental aspects.
- El Niño Current.
- Southern oscillation--Environmental aspects.
- Southern oscillation.
- Arctic oscillation--Environmental aspects.
- Arctic oscillation.
- North Atlantic oscillation--Environmental aspects.
- North Atlantic oscillation.
- Climatic changes--Great Lakes (North America).
- Climatic changes.
- Great Lakes (North America)--Climate.
- Great Lakes (North America).
- Climatology.
- Great Lakes.
- Pacific Ocean--El Niño Current.
- Physical Description:
- 1 online resource (44 pages) : illustrations, maps (some color).
- Place of Publication:
- [Ann Arbor, Mich.] : U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration [Great Lakes Environmental Research Laboratory], [2010]
- Summary:
- The impacts of El Nino and South Oscillation (ENSO) and Arctic Oscillation (AO) or North Atlantic Oscillation (NAO) on Great Lakes ice cover were investigated using ice observations for winters 1963-2008 and National Centers for Environmental Prediction (NCEP) reanalysis data. Signatures of ENSO and AO/NAO were found in Great Lakes ice cover. However, the impacts are nonlinear and asymmetric. Strong El Nino events are often associated with least ice cover on the Great Lakes, while the impacts of weak El Nino and La Nina events (of all intensities) on the Great Lakes are marginally significant. Negative AO/NAO events are often associated with severe ice cover, while positive AO/NAO events often lead to lower ice cover. The strong El Nino and negative AO/NAO events account for about 50% of the least and severe ice cover winters on the Great Lakes, respectively. The interference of the effects of ENSO and AO/NAO over the Great Lakes makes the relationships complicated. This may be an important cause of nonlinear and asymmetric responses of the regional climate and Great Lakes ice to ENSO and AO/NAO. Based on the cross composite analysis, it is found that during the simultaneous occurrence of El Nino (La Nina) and +AO ( -AO) events, Great Lakes ice cover tends to be least (severe).
- Notes:
- "November 2010."
- Title from title page (viewed on June 6, 2011).
- Print version record.
- Includes bibliographical references (pages 41-44).
- Other Format:
- Print version: Bai, Xuezhi. Impacts of ENSO and AO/NAO on the interannual variability of Great Lakes ice cover.
- OCLC:
- 729761517
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