U.S.-Philippines Planning Visit: Weathering fluxes from Active Volcanic Arcs

[0738828]该奖项支持计划访问，使纽约康奈尔大学的Louis Derry教授能够与位于奎松市菲律宾大学内的国家地质科学研究所的Carlo Arcilla博士会面。他们的目标是建立一个合作项目，研究菲律宾活火山弧的化学风化通量，包括活火山和休眠火山以及蛇绿岩地体。研究人员认为，热带和亚热带地区火山弧的化学风化和二氧化碳消耗率很高，但在目前的地球化学通量模型中很大程度上被忽视了。这些地形的特点是有许多小溪，导致了一种非点源问题。研究人员将把对河流水化学的测量与对空间数据集（如地形、降水和土地覆盖）的分析结合起来，以便更好地推断出一个更大的异质区域的水化学数据的实际数量。康奈尔大学的研究人员和菲律宾国家地质科学研究所的研究人员之间有足够的兴趣重叠，这表明他们可以成功地开展所提议的活动，而且这种互动将使双方受益。如上所述，在任何地方，特别是在西太平洋，都很少有这样的数据集。更广泛的影响可能是巨大的，因为这些研究人员最终将成功地模拟弧形地形对气候变化的全球反应。访问还将为研究生提供支持。这种全球研究经验可能会为她在整个研究生涯中与菲律宾同事继续接触提供许多机会。该奖项是与地球科学理事会的地球科学部共同资助的。

0738828DerryThis award supports a planning visit to enable Professor Louis Derry at Cornell University in New York to meet with Dr. Carlo Arcilla at the National Institute of Geological Sciences located within the University of the Philippines in Quezon City. Their goal is to establish a collaborative project on chemical weathering fluxes from the active volcanic arc in the Philippines, including active and dormant subaerial volcanoes and ophiolite terranes. The researchers believe that chemical weathering and CO2 consumption rates in volcanic arcs of tropical and subtropical regions are high, but have been largely overlooked in current geochemical flux models. These terranes are characterized by many small streams, leading to a type of non-point source problem. The researchers will combine measurements of stream hydrochemistry with analysis of spatial data sets (such as topography, precipitation and land cover) to better extrapolate a realistic number of hydrochemical data across a larger and heterogeneous region. There is sufficient overlap of interests between researchers at Cornell University and the National Institute of Geological Sciences in the Philippines to indicate that they can successfully pursue the activities proposed, and that the interaction will benefit both sides. Few such data sets, as described above, are available anywhere, particularly from the western Pacific. The broader impact is potentially enormous, given the likelihood that these researchers will eventually successfully model global response of arc terranes to climate change. The visit will also provide support for a graduate student. This global research experience will likely provide her many opportunities for continuing contacts with her Philippine colleagues throughout her research career. This award is co-funded with the Division of Earth Sciences in the Directorate for Geosciences.