Sediment production via landsliding in the Waipaoa: Temporal and spatial variability using InSAR, LiDAR, air photos, and Be-10

提供资金，利用各种遥感技术(InSAR、机载激光雷达、历史航空照片)与宇宙放射性核素(10Be)相结合，量化新西兰怀保亚河流域滑坡沉积物产量的空间和时间变化。外保阿盆地是边缘-源-汇研究地点之一，这项工作将有助于全面了解滑坡多发地区的泥沙生成和动员。PIS将：1)估计自90年代S以来滑坡在季节时间尺度上的空间分布；2)追踪自然和人为地貌的下坡运动并生成地图；3)记录易发生滑坡的山坡及其与河网耦合的实例研究；4)研究点位上下游滑坡活动的差异，以及与长期气候演变和土地利用变化的关系。更广泛的影响包括与当地(新西兰)科学家的国际合作，为边缘社区生成和迅速传播最先进的数据集，研究生培训，以及当地土地利用的相关性。

Funds are provided to quantify spatial and temporal variations in landslide sediment production in the Waipaoa River Basin, New Zealand using a variety of remote sensing techniques (InSAR, airborne LiDAR, historic air photos) in combination with cosmogenic radionuclides (10Be). The Waipaoa Basin is one of the MARGINS Source-to-Sink study sites, and this work will contribute to an overall understanding of sediment generation and mobilization in landslide-prone areas. The PIs will: 1) estimate the spatial distribution of slope failure on seasonal timescales since the early ?90?s, 2) track downslope movement of natural and anthropogenic features and generate maps, 3) document case studies of landslide-prone hillslopes and their coupling to channel networks, and 4) study the difference in landslide activity upstream and downstream of knickpoints, and the relation to long-term climate evolution and land use change. Broader impacts include international collaboration with local (New Zealand) scientists, generation and rapid dissemination of a state-of-the-art data set to the MARGINS community, graduate student training, and local land-use relevance.