In contrast to many other arid region rivers, streamflow in the South Platte River is heavily augmented by trans-basin water imports and irrigation return flows. Hydrological changes began 1880s, resulting channel narrowing development of a continuous Populus-Salix forest mid-twentieth century. We assessed composition, structure regeneration status riparian identified environmental variables af...

Drought has an impact on many aspects of society. To help decision makers reduce the impacts of drought, it is important to improve our understanding of the characteristics and relationships of atmospheric and oceanic parameters that cause drought. In this study, the use of data mining techniques is introduced to find associations between drought and several oceanic and climatic indices that co...

We compared high-resolution reconstructions of peatland water-table depth at two raised bogs in the western Great Lakes region separated by ∼1000 km. The sites included Minden Bog in southeastern Michigan and Hole-in-the-Bog in north-central Minnesota. Our objectives were to 1) determine whether large, decadal to multidecadal droughts of the past 2000 yrs were spatially and temporally coherent ...

Background and aim: Malawi’s agricultural economy relies on the yearly rains to support crop growth national food availability. Climate change threatens security, risks undermining development initiatives for agriculture population health. The study aim was identify quantify key relationships between climate, production security indicators, areas future data collection research. Methods: Based ...

Our objective was to infer the climate drivers of regionally synchronous fire years in dry forests of the U.S. northern Rockies in Idaho and western Montana. During our analysis period (1650-1900), we reconstructed fires from 9245 fire scars on 576 trees (mostly ponderosa pine, Pinus ponderosa P. & C. Lawson) at 21 sites and compared them to existing tree-ring reconstructions of climate (temper...

In the current human-influenced era, drought is initiated by natural and human drivers, and human activities are as integral to drought as meteorological factors. In large irrigated agricultural regions with high levels of human intervention, where the natural farmland soil moisture has usually been changed significantly by high-frequency irrigation, the actual severity of agricultural drought ...