Coastal Upwelling Transport Index (CUTI)
CUTI provides estimates of vertical transport near the coast (i.e., upwelling/downwelling). It was developed as a more accurate alternative to the previously available ‘Bakun Index’.
Overview
Ocean observations provide information to track the onset and impacts of El Nino. Ocean observations provide real-time, on-the-ground information that allows climate scientists to assess El Nino intensity, geographic extent, and implications for society.
Northern California
Add regional observations, notable conditions, and context for this shoreline.
Central California
Add regional observations, notable conditions, and context for this shoreline.
Southern California
Add regional observations, notable conditions, and context for this shoreline.
Coastal Conditions - Subsurface Moorings
Add subsurface temperature, salinity, current, or other observations that help describe ENSO conditions.
Water temperature anomalies averaged over the inshore 200 km and upper 100 m of CUGN lines 90, 80 and 66. By this measure, the temperature anomalies on lines 66.7 and 80 earlier this year were the largest they have been in the 20 year record of CUGN gliders. This marine heatwave developed since early 2025 before the current El Niño. The effects of the current El Niño are beginning to be observed in the warming on line 90.
Sea Surface Temperature Anomalies
Add explanatory text for the MUR sea surface temperature anomaly map here.
Biologically Effective Upwelling Transport Index (BEUTI)
BEUTI provides estimates of vertical nitrate flux near the coast (i.e., the amount of nitrate upwelled/downwelled), which may be more relevant than upwelling strength when considering some biological responses.
Coastal Erosion
Add coastal erosion observations, regional context, and links to relevant monitoring resources.
Ecosystem Impacts
Add observed or expected ecosystem impacts, with sources and uncertainty noted where appropriate.
FAQ & Resources
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