Filling the observational void: Scientific value and quantitative validation of hydrometeorological data from a community-based monitoring programme
Filling the observational void: Scientific value and quantitative validation of hydrometeorological data from a community-based monitoring programme
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DOI：
10.1016/j.jhydrol.2016.04.062
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发表时间：
2016-07
影响因子：
6.4
通讯作者：
D. Walker;N. Forsythe;G. Parkin;J. Gowing
中科院分区：
文献类型：
--
作者：
D. Walker;N. Forsythe;G. Parkin;J. Gowing
这项研究表明，基于社区的水文气象监测计划如何能够提供与正式观测相当的可靠的高质量测量。埃塞俄比亚西北部Dangilaworeda当地社区获得的日降雨量、河流水位和地下水位的时间序列已经通过了公认的质量控制标准，并与正式来源进行了统计验证。在一个密度低且正式水文气象监测网络不断减少的地区（这是许多发展中国家共同面临的情况），基于社区的监测可以填补观测空白，从而改善降雨、河流流量和地下水位的时空特征。这样的时间序列数据在水资源评估和管理中是非常宝贵的，特别是在网格化降雨数据集提供的降雨量总体偏低或过高估计以及不存在地下水位数据的情况下，如图所示。在监测方案设立之初和之后举行的讲习班期间与当地社区进行的讨论表明，社区已经参与了该项目，并从更多的水文知识和对其资源的所有权意识中受益。对浅层地下水和河流集水区进行有效的社区参与性管理所需的有关规模的了解和授权的增加。
This study shows how community-based hydrometeorological monitoring programmes can provide reliable high-quality measurements comparable to formal observations. Time series of daily rainfall, river stage and groundwater levels obtained by a local community in Dangilaworeda, northwest Ethiopia, have passed accepted quality control standards and have been statistically validated against formal sources. In a region of low-density and declining formal hydrometeorological monitoring networks, a situation shared by much of the developing world, community-based monitoring can fill the observational void providing improved spatial and temporal characterisation of rainfall, river flow and groundwater levels. Such time series data are invaluable in water resource assessment and management, particularly where, as shown here, gridded rainfall datasets provide gross under or over estimations of rainfall and where groundwater level data are non-existent. Discussions with the local community during workshops held at the setup of the monitoring programme and since have demonstrated that the community have become engaged in the project and have benefited from a greater hydrological knowledge and sense of ownership of their resources. This increased understanding and empowerment is at the relevant scale required for effective community-based participatory management of shallow groundwater and river catchments.