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Utah State University

Plants, Soils, and Climate Faculty Publications

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Climate variability

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Full-Text Articles in Life Sciences

Metrics For Understanding Large-Scale Controls Of Multivariate Temperature And Precipitation Variability, John P. O'Brien, Travis A. O'Brien, Christina M. Patricola, S.-Y. Simon Wang Apr 2019

Metrics For Understanding Large-Scale Controls Of Multivariate Temperature And Precipitation Variability, John P. O'Brien, Travis A. O'Brien, Christina M. Patricola, S.-Y. Simon Wang

Plants, Soils, and Climate Faculty Publications

Two or more spatio-temporally co-located meteorological/climatological extremes (co-occurring extremes) place far greater stress on human and ecological systems than any single extreme could. This was observed during the California drought of 2011–2015 where multiple years of negative precipitation anomalies occurred simultaneously with positive temperature anomalies resulting in California’s worst drought on observational record. The large-scale drivers which modulate the occurrence of extremes in two or more variables remains largely unexplored. Using California wintertime (November–April) temperature and precipitation as a case study, we apply a novel, nonparametric conditional probability distribution method that allows for evaluation of complex, multivariate, and nonlinear relationships …


Dzuds, Droughts, And Livestock Mortality In Mongolia, Mukund Palat Rao, Nicole K. Davi, Rosanne D. D'Arrigo, Jerry Skees, Baatarbileg Nachin, Caroline Leland, Bradfield Lyon, Shih-Yu (Simon) Wang, Oyunsanaa Byambasuren Jul 2015

Dzuds, Droughts, And Livestock Mortality In Mongolia, Mukund Palat Rao, Nicole K. Davi, Rosanne D. D'Arrigo, Jerry Skees, Baatarbileg Nachin, Caroline Leland, Bradfield Lyon, Shih-Yu (Simon) Wang, Oyunsanaa Byambasuren

Plants, Soils, and Climate Faculty Publications

Recent incidences of mass livestock mortality, known as dzud, have called into question the sustainability of pastoral nomadic herding, the cornerstone of Mongolian culture. A total of 20 million head of livestock perished in the mortality events of 2000–2002, and 2009–2010. To mitigate the effects of such events on the lives of herders, international agencies such as the World Bank are taking increasing interest in developing tailored market-based solutions like index-insurance. Their ultimate success depends on understanding the historical context and underlying causes of mortality. In this paper we examine mortality in 21 Mongolian aimags (provinces) between 1955 and 2013 …