Benchmark

{
  "id": "MLC-T-OAG-000317",
  "term": "Benchmark",
  "field": "Oil and gas",
  "definition": "A point of known elevation or position that serves as a reference for surveying and mapping. In geophysical surveys, benchmarks are used to establish precise coordinates and elevations for seismic sources, receivers, and gravity stations. They are typically marked by permanent monuments and are tied to national or global geodetic networks.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/benchmark/"
}