Effects of basin-scale climate modes and upwelling on nearshore marine heatwaves and cold spells in the California Current.

ABSTRACT: Marine heatwaves and cold spells (MHWs/MCSs) have been observed to be increasing globally in frequency and intensity based on satellite remote sensing and continue to pose a major threat to marine ecosystems worldwide. Despite this, there are limited in-situ based observational studies in the very shallow nearshore region, particularly in Eastern Boundary Current Upwelling Systems (EBUS). We analyzed a unique dataset collected in shallow waters along central California spanning more than four decades (1978-2020) and assessed links with basin-scale climate modes [Pacific Decadal Oscillation (PDO) and El Niño (MEI)] and regional-scale wind-driven upwelling. We found no significant increase/decrease in MHW/MCS frequency, duration, or intensity over the last four decades, but did observe consi

SUBMITTER: Dalsin M 

PROVIDER: S-EPMC10390473 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature