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首页> 外文会议>Remote Sensing in the Third Millennium: from Global to Local >Assessment of water resources in fractured rocks by remote sensing and GIS methods: case study of the semi-mountainous region of western Cote d'lvoire
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Assessment of water resources in fractured rocks by remote sensing and GIS methods: case study of the semi-mountainous region of western Cote d'lvoire

机译：遥感和GIS方法评估裂隙岩石中的水资源-以科特迪瓦西部半山区为例

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Managing water resources in a vulnerable environment is a current issue. The western semi-mountainous region of Cote d'Ivoire is under a heavy human pressure due to a high birth rate (5%), a soaring influx of war refugees from the neighbouring countries of Liberia, Guinea and Sierra Leone, and finally an increase in touristic, agricultural, and pastoral activities. Unfortunately, the irregularities of seasons and the climatic fluctuations over the last three decades have caused a decrease in precipitation. Hence, the spatial distribution and the sustainable management of the water resources in this part of the country is a major concern to both scientists and decision makers. A quantitative assessment of the available water resources has been initiated at the Centre Universitaire de Recherche et d'Application en Teledetection (CURAT, the University Research Center in Applied Remote Sensing) at the University of Cocody. This work aims to improve the knowledge on aquifers in fractured media and explain the mechanisms of water (both surface and underground) distribution and flow. Remote sensing approaches, statistical analysis tools, and groundwater flow models were used to analyze the fracture pattern of the rock medium and hence to create a hydrogeological database necessary for a GIS application. The comparison of different thematic maps of several hydraulic parameters shows a high correlation between potential groundwater flow paths and the hydrographic network. This finding is indicative of the recharge-drainage type of relationship between underground and surface water systems.
机译：在脆弱的环境中管理水资源是当前的问题。由于高出生率（5％），来自利比里亚，几内亚和塞拉利昂等邻国的战争难民的大量涌入，科特迪瓦的西部半山区承受着沉重的人类压力。从事旅游，农业和牧业活动。不幸的是，过去三十年的季节不规则和气候波动导致降水减少。因此，该国该地区水资源的空间分布和可持续管理是科学家和决策者的主要关切。可可迪大学的遥感研究中心和大学应用遥感中心（CURAT，应用遥感大学研究中心）已经开始对可用水资源进行定量评估。这项工作旨在提高对裂缝性介质中含水层的认识，并解释水（地表和地下）的分布和流动机理。遥感方法，统计分析工具和地下水流模型被用于分析岩石介质的裂缝模式，从而创建了GIS应用所需的水文地质数据库。对几个水力参数的不同专题图的比较表明，潜在的地下水流路径与水文网络之间具有高度相关性。这一发现表明了地下水与地表水系统之间关系的补给-排水类型。

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