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2021年6月4日—TheCaliforniaCurrentMarineHeatwaveTracker–Anexperimentaltoolfortrackingmarineheatwaves·Whatisamarineheatwave?·Whatare ...

Marine heatwaves[1], or MHWs, occur when ocean temperatures are much warmer than usual for an extended period of time; they are specifically defined by differences in expected temperatures for the location and time of year.1 MHWs are a growing field of study worldwide because of their effects on ecosystem structure, biodiversity, and regional economies.

In 2014 a large MHW was identified as it began dominating the northeast Pacific Ocean. Eventually known as “the blob” (Fig. 3A.), this basin-scale MHW was unique in the history of monitoring in the California Current, and persisted until mid-2016. Researchers documented many ecological effects associated with the blob, including unprecedented harmful algal blooms, shifting distributions of marine life, and changes in the marine food web.

For recent comparison, the Northeast Pacific Marine Hea...