Stilling Well

{
  "id": "MLC-T-ENV-026814",
  "term": "Stilling Well",
  "field": "Environment",
  "definition": "An enclosure mounted inside a reservoir, channel, or natural water body so as to intersect the free water surface of the larger water body and provide a relatively calm area to facilitate measurement of the position of the free water surface. The inside of a stilling well contains the same fluid as the larger reservoir and is hydraulically connected to the larger reservoir. Thus fluid level in a stilling well is the same as the level outside of the well but is relatively free from waves and ripples that make measurement of the water surface level difficult in the main reservoir, channel, or natural water body. A stilling well is constructed with perforated walls or is open to the main water body at the bottom of the well to ensure that water level in the well accurately represents that of the reservoir or channel. Water level gauges and recorders are often mounted inside stilling wells. When a float is used to gauge the position of the water level the alternative term used is float chamber.",
  "subject": "Science and research",
  "references": [
    "Urban Watershed Management Research Terminology"
  ],
  "url": "https://mlchart.com/terminology/environment/stilling-well/"
}