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ROOT _ScienceBase Catalog __National and Regional Climate Adaptation Science Centers ___Southwest CASC ____FY 2013 Projects
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Originally, we had two primary objectives for this project: (1) To study North Pacific Jet (NPJ) climatology on interannual to decadal time scales by (a) extending the instrumental NPJ period back in time based on Twentieth Century Re-analysis data and (b) by developing a tree-ring based reconstruction of the winter NPJ position. (2). To analyze the influence of NPJ position on Sierra Nevada (SN) fire regimes. For this purpose, we planned to use historical SN fire regime data to establish a pre-settlement NPJ-fire relationship and recent annual area burned data to determine whether this relationship persists into the 21st century. We have reached objective 1a in a study of twentieth century NPJ climatology (Belmecheri...
Categories: Publication;
Types: Citation
Abstract (from Dendrochronologia): In the United States’ (US) Northern Rockies, synoptic pressure systems and atmospheric circulation drive interannual variation in seasonal temperature and precipitation. The radial growth of high-elevation trees in this semi-arid region captures this temperature and precipitation variability and provides long time series to contextualize instrumental-era variability in synoptic-scale climate patterns. Such variability in climate patterns can trigger extreme climate events, such as droughts, floods, and forest fires, which have a damaging impact on human and natural systems. We developed 11 tree-ring width (TRW) chronologies from multiple species and sites to investigate the seasonal...
Categories: Publication;
Types: Citation;
Tags: Drought, Fire and Extreme Weather,
Fire,
Southwest CASC
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