期刊
SCIENTIFIC REPORTS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep25061
关键词
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资金
- Natural Sciences and Engineering Research Council
- York University
- North Temperate Lakes Long Term Ecological Research Program at the University of Wisconsin-Madison
- U.S. National Science Foundation
- U.S. Geological Survey Office of Water Information
- Rutgers Institute of Marine and Coastal Sciences
- Cooperative Institute of the North Atlantic Region [A101058 from the]
- Division Of Environmental Biology
- Direct For Biological Sciences [1440297] Funding Source: National Science Foundation
Lake and river ice seasonality (dates of ice freeze and breakup) responds sensitively to climatic change and variability. We analyzed climate-related changes using direct human observations of ice freeze dates (1443-2014) for Lake Suwa, Japan, and of ice breakup dates (1693-2013) for Torne River, Finland. We found a rich array of changes in ice seasonality of two inland waters from geographically distant regions: namely a shift towards later ice formation for Suwa and earlier spring melt for Torne, increasing frequencies of years with warm extremes, changing inter-annual variability, waning of dominant interdecadal quasi-periodic dynamics, and stronger correlations of ice seasonality with atmospheric CO2 concentration and air temperature after the start of the Industrial Revolution. Although local factors, including human population growth, land use change, and water management influence Suwa and Torne, the general patterns of ice seasonality are similar for both systems, suggesting that global processes including climate change and variability are driving the long-term changes in ice seasonality.
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