Water Level Data from the Prek System of the Cambodian Mekong Delta (2020-2024)

As in many tropical deltas globally, annual floods shape the livelihoods of the largely rural population in the Cambodian Mekong delta. Agricultural cycles are keyed to the flood arrival, peak, and recession, and fish populations depend on inundated floodplains for their regeneration. However, as factors like climate change and hydropower infrastructure development are altering the Mekong’s hydrology, the inundation dynamics of its deltaic floodplains are shifting as well. Several studies have assessed the general changes of river discharge and flood extent on a basin- or delta-wide scale. Yet the sustainable development of this region is relying on dynamics at more local and specific scales, which have not been addressed so far. This dataset includes water level data from nine differential pressure loggers installed in the Kandal region in Cambodia. One of them was installed directly in the Bassac river, the others in Prek channels - canals that diverge perpendicularly from the river mainstream to establish a connection with low-lying floodplains and acting as vectors for both flooding and drainage. Data for each logger is in a separate folder, which contains the data, a Readme file with metadata, a diagram of the installation, a map of its location, and a photograph of the logger in situ.

在全球众多热带三角洲中，年度洪水塑造了柬埔寨湄公河三角洲广大农村人口的生计。农业周期与洪水的到来、峰值和退潮紧密相连，鱼类种群依赖淹没的河漫滩进行再生。然而，随着气候变化和水电基础设施发展等因素改变湄公河的水文状况，其三角洲河漫滩的淹没动态也在发生转变。已有数项研究评估了在流域或三角洲范围内河流径流和洪水范围的一般变化。然而，该地区的可持续发展依赖于更局部和具体的尺度上的动态，而这些尚未得到关注。本数据集包含了柬埔寨卡达勒地区安装的九个差压式水位记录仪的水位数据。其中之一直接安装在巴萨克河中，其余的安装在普雷克渠道中——这些渠道垂直于主流分流，以与低洼河漫滩建立联系，并作为洪水和排水的传输通道。每个记录仪的数据都存放在单独的文件夹中，其中包含数据、包含元数据的Readme文件、安装示意图、位置图以及现场记录仪的照片。