Coral bleaching occurs when corals are stressed by
unusually high water temperatures, or from other causes.
The bleaching event has been tied to the combination of
unusually high water temperatures in the Coral Sea and GBR and a strong El Nino event in the Pacific.
Not exact matches
Updated, 6:14 p.m. Assessing widespread reports of reef stress along with
unusually high sea - surface
temperatures, the National Oceanic and Atmospheric Administration is warning of a globe - spanning bleaching of corals in coastal
waters around the tropics.
The observations from the Laptev Sea in 2007 indicate that the bottom
water temperatures on the mid-shelf increased by more than 3 C compared to the long - term mean as a consequence of the
unusually high summertime surface
water temperatures.
The summer of 2002 had
unusually high temperatures resulting in
unusually little
water flow in rivers without glaciers in their catchment area.
Causality is always tricky to assign in cases such as this one, since it's entirely possible that the ridging itself has led to warm surface
water though decreased oceanic mixing by wind and
unusually high air
temperatures.
The
unusually high sea ice surface
temperatures reflect a shift in ocean circulation, enhancing the import of warm, Atlantic - derived
waters into the Arctic Ocean.
The storm is passing over
waters of 29 °C — approximately 0.5 °C above average in
temperature — and is an
unusually wet storm, with amounts of
water vapor near the very
high end of what is observed in tropical cyclones (precipitable
water values up to 3.0 inches.)
Symbiodinium trenchi, which normally occurs in very low numbers in the Caribbean, was able to take advantage of the warming event and become more prolific because of its apparent tolerance of
high temperatures... the species appears to have saved certain colonies of coral from the damaging effects of
unusually warm
water.