NMO

{
  "id": "MLC-T-OAG-002547",
  "term": "NMO",
  "field": "Oil and gas",
  "definition": "The change in reflection travel time due to the varying distance between a source and receiver for a flat, horizontal reflector, an effect known as Normal Moveout. This hyperbolic increase in two-way travel time with offset is corrected by applying a time shift to each trace in a common midpoint gather. The correction flattens the reflection event, aligning it at its zero-offset time, which is a prerequisite for stacking the data.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/nmo/"
}