Scientists recently reported that the ozone hole over Antarctica is showing signs of healing. This wonderful news comes almost 20 years after the Montreal Protocol banned the production and use of clorofluorocarbons (CFCs) in 1987. The decline means that CFCs are finally dropping in concentration in the atmosphere and are either breaking down high in the stratosphere or going into the ocean. Biologically inert, the CFCs in the ocean don’t harm any marine life, but they have proven very useful for oceanographers trying to understand circulation in the deep ocean. Continue reading CFCs: Noxious for ozone, but luminescent for ocean currents
We all know that boy who just keeps pestering and won’t quite go away, right? Well the winter of 2015-2016 saw one of the largest El Niños on record hit the Equatorial Pacific….and it just won’t go away. While the weatherpersons on the news were quick to make connections between atmospheric patterns and El Niño, I didn’t see any mentions about the effects it would have on our coastal waters. After all, El Niño is an oceanic phenomenon so it would make sense that there would be a local marine effect, right? It turns out that while El Niño is on its way out and predictions of La Niña are on the rise in equatorial waters, the Salish Sea is just starting to feel the effects of the monster that was. Continue reading The Boy who Lingers: El Nino and the Salish Sea
Would you still book that summer vacation if you knew there was going to be an extreme heat wave during your trip? This is a question you may soon ask yourself with last months revelation of a new Pacific Extreme Pattern that has the capability to accurately forecast a heatwave (>6.5 degC, 11.7 degF) up to 50 days in advance. Continue reading Pacific Extreme Pattern
On the evening of December 29th, most of southern BC and northwest Washington felt the jolt of the M4.8 earthquake that was located 19 km NNE of Victoria. While minimal damage was reported, it served as a reminder to many that this is a seismically active region.
However, no one felt the 10,000 small earthquakes, or tremors, that began on December 22nd and continued through January 16th. Yet, combined, these small movements released enough energy to be equivalent to a M6.5 earthquake, or about 350 times the release experienced on December 29th.
By Jay T. Cullen
Eiko Jones is a photographer who specializes in underwater imaging and works out of Campbell River on Vancouver Island in British Columbia. He recently completed a project where he captured a lengthy, high definition video of coho salmon (Oncorhynchus kisutch) returning to the Quinsam River.
You can read about the technical details of the shoot at Eiko’s blog if you are interested. The video shows these amazing fish completing their life cycle by returning to the natal river to spawn. Our monitoring project has been collecting coho, other Pacific salmon and marine organisms to look for Fukushima radionuclide contamination and to determine the impact of the disaster on ecosystem and public health.
Enjoy Eiko and his teams work below.