The Behavior and Effects of Jokulhlaup Discharge into the Sea

1996年秋天，瓦特纳冰川冰盖下的一次冰下喷发引发了本世纪冰岛最大的冰川喷发。洪水在海底形成了大规模的沉积物羽流。利用补充资金进行了一次实地考察，对这次事件的产物进行取样和研究，包括沉积物和水样。新的资金将用于继续分析这一独特的数据集，以便：1)描述事件中颗粒在进入海洋和分散过程中的沉积特征；2)检查水中颗粒羽流的性质及其扩散；3)调查洪水进入海洋时的动态性质。这项研究将为joekulhlaup流的行为、它们在海洋环境中的扩散以及与之相关的沉积过程提供新的线索。

In the fall of 1996 a subglacial eruption beneath the Vatnajoekull icecap triggered the largest joekulhlaup of this century of Iceland. The flood produced a large-scale sediment plume in the ocean floor. A field expedition was mounted with supplemental funds to sample and study the products of this event, including, sediment and water samples. New funds will be used to continue the analyses of this unique data set to: 1) characterized the sedimentation of particles from the event as they traveled to the sea and were dispersed, 2) examine the nature of particle laden plume in the water and its dispersal, and 3) investigate the dynamic nature of the floods as they enter the ocean. The study will shed new light on the behavior of the joekulhlaup flows, their dispersal and the sedimentary processes associated with them in the marine environment.