A Planning Visit for Collaborative Research on Sedimentation and Subsidence in the Ganges-Brahmaputra River Delta Plain

项目描述：本项目支持两名美国科学家计划访问孟加拉国，以完善一项由欧洲、孟加拉国和美国科学家参与的合作研究项目。目的是研究恒河-布拉马普特拉河-梅克纳河形成的三角洲平原在现代（100年）和冰川期（全新世）以来的沉积和沉降。这片广阔的洪泛平原可能是这个世界上最大的河流系统排放的40% -80%的沉积物的水槽。对该系统总体沉积物收支的理解具有当地和全球的相关性。对沉降和沉降模式进行量化和测绘是孟加拉国实施防洪工程的先决条件，该国每年有35-40%的土地被洪水淹没。范围：需要广泛的科学和后勤规划，将这项研究与现有的孟加拉国-欧洲关于河流水动力学和形态的联合研究结合起来。这次访问将通过与孟加拉国科学家和政府官员的会晤以及对可能的采样地点的实地考察来进行协调。＊＊＊

9322601 Mead Description: This project supports a planning visit by two U.S. scientists to Bangladesh to refine a collaborative research program, involving scientists from Europe, Bangladesh and the United States. The objective is to study the sedimentation and subsidence in the delta plain formed by the Ganges-Brahmaputra- Meghna rivers on modern (100 years) time scale, and since the glaciation (Holocene). This vast floodplain may be the sink for 40-80% of the sediment discharged from this river system, which is the world's largest. An understanding of the overall sediment budget for this system has local as well as global relevance. Quantifying and mapping sedimentation and subsidence patterns is a prerequisite to implementing flood control engineering in Bangladesh where 35-40% of the country is flooded annually. Scope: Extensive scientific and logistic planning is required to integrate this study with an existing joint Bangladesh-European study of river hydrodynamics and morphology. The visit will allow that coordination through meetings with Bangladesh scientists and government officials, and through field examination of potential sampling sites. ***