Elevation of groundwater (DP1.20100.001)

There are important linkages and feedbacks between groundwater and surface water in streams, rivers, and lakes. NEON measurements of groundwater elevation at high resolution temporal changes informs these linkages. Three to eight wells are available per aquatic site. In this way, magnitude and direction of groundwater flow can be calculated. Wells are located both near the water body and further from the water body to enable investigation of hyporheic groundwater flow paths. This data product contains continuous, quality-controlled, groundwater depth converted to elevation above mean sea level. Measurements are captured every five minutes and reported as 5-minute instantaneous measurements and 30-minute averages.

Latency:
Data collected in any given month are published during the second full week of the following month.

溪流、河流与湖泊中的地下水与地表水之间存在重要的关联与反馈机制。NEON开展的高时间分辨率地下水水位测量数据，可为这类关联研究提供有效支撑。每个水生监测站点配备3至8口监测井，借此可计算地下水径流的强度与流向。监测井同时布设于水体周边及远离水体的区域，以支持潜流带（hyporheic）地下水径流路径的相关研究。本数据集产品包含经过质量控制的连续地下水埋深数据，并已转换为平均海平面以上的海拔高程。数据采集频率为每5分钟一次，以5分钟瞬时测量值与30分钟平均值两种形式对外发布。
数据发布时效：当月采集的全部数据将于次月的第二个完整工作周内完成发布。