Time Series Analysis
Methods for finding structure, trend, and warning in measurements ordered through time.
Why it matters now
The Anthropocene is documented in time series: Mauna Loa carbon dioxide, ice core records, tide gauges, satellite temperature. These records are the single strongest evidence base humanity has ever assembled, and they also carry early warning signals. Rising variance and slowing recovery often precede a transition by years, which is time enough to act.
Where this is happening on Earth
- Oceania and North AmericaKeeling Curve, Mauna Loa Observatory, HawaiiAn unbroken carbon dioxide record since 1958, begun by Charles David Keeling and continued by his son.
- AntarcticaEPICA and Vostok ice coresEight hundred thousand years of atmosphere read directly from trapped bubbles.
- AsiaNilometer and Ganges gauge records, Egypt and IndiaSome of the longest continuous hydrological records in existence, now anchoring modern flood statistics.
- EuropeCentral England Temperature seriesThe world's longest instrumental temperature record, running since 1659.
- AfricaLake Tanganyika temperature reconstructionsSediment records showing a warming lake and declining fish productivity across a century.
The idea itself
The encyclopedia entry first, then live searches at journals and magazines that keep returning current work on this specific idea.
Current reporting from around the world
Standing feeds at reputable periodicals. These stay fresh on their own, which is why they are here instead of a list of articles that would be out of date within a season.