SBC LTER: Hourly photon irradiance at the surface and seafloor, ongoing since 2008

These data represent mean hourly values of photosynthetically
active radiation (PAR) (in units of mol
m-2 s-1) at
five subtidal reefs and one coastal location off Santa Barbara,
California. Sensors record instantaneous irradiance at one-minute
or 30 second intervals, and data are averaged hourly. Sensors are
mounted on the sea floor at five sites (Arroyo Quemado,
Carpinteria, Naples Reef, Isla Vista, and Mohawk Reef). A surface
sensor is deployed on an unobstructed coastal rooftop at the UC
Santa Barbara campus; some historical observations are available
from sensors mounted above the sea surface at a subset of the five
sites.