Map Viewing Service (WMS) of the dataset: Piezometric Stations in Provence-Alpes-Côte-d’Azur

Strictly speaking, a piezometric station or pezometer is an apparatus set up to monitor changes in the level of an aquifer or a groundwater table. The data collected over a large number of years provides a good understanding of the aquifer at the measuring station. However, for practical reasons, the SANDRE group has extended this concept to that of a piezometric observation point, which is either a man-built structure (wells, drilling, gravel, etc.), or a natural point (source, aven, cave,...) which makes it possible to measure the level of a tablecloth. Theoretically, a pezometer only measures the level of one and one layer. In fact, a pezometer can reach several layers whose piezometric levels may be different. The Pizometer Network is the monitoring network under the Groundwater Framework Directive DREAL PACA no longer manages this data, subcontracting has been entrusted to the BRGM. The data produced by the BRGM network are made available to the public, administrations or design offices on the internet server of the Rhône-Méditerranée-Corse basin where information is presented in the ADES bank.严格来讲，测压站（piezometric station）或测压计（pezometer）是用于监测含水层（aquifer）或地下水位（groundwater table）变化的监测装置。长期采集的监测数据可帮助研究者充分掌握监测站点处的含水层特性。 然而出于实际应用考量，SANDRE集团（SANDRE group）将该概念延伸至测压观测点（piezometric observation point）范畴：此类点位既可为人工构筑物（如井、钻孔、砾石设施等），也可为天然点位（如泉、灰岩坑、洞穴等），可用于测定地下水位。 理论上，单台测压计仅能测定单个含水层的水位；但实际应用中，一台测压计可同时监测多层含水层，且各层的测压水位可能存在差异。 测压网（Piezometric Network，原文拼写笔误为Pizometer Network）是依据《地下水框架指令》（Groundwater Framework Directive）设立的监测网络。 普罗旺斯-阿尔卑斯-蓝色海岸大区区域环境局（DREAL PACA）已不再负责该数据的管理工作，相关数据运维委托给了法国地质与矿业研究局（BRGM）。 BRGM监测网络生成的数据，可通过罗讷-地中海-科西嘉流域（Rhône-Méditerranée-Corse basin）的官方服务器向公众、行政部门及设计单位开放，相关信息存储于ADES数据库（ADES bank）中。