Station-year method

{
  "id": "MLC-T-MET-009232",
  "term": "Station-year method",
  "field": "Meteorology and atmospheric science",
  "definition": "A way of estimating how often rare rainfall or flood events occur by pooling the records of several stations in a region into one long composite record, counting each station-year as a year of data. It assumes the stations are statistically independent and sample the same distribution, which lets a return period longer than any single record be estimated. Strong correlation between nearby gauges violates the independence assumption.",
  "see_also": [
    "regional analysis"
  ],
  "url": "https://mlchart.com/terminology/meteorology/station-year-method/"
}