A three-year field program now underway is measuring carbon distributions and primary productivity in the Northwest Atlantic Ocean to help determine the impacts of a changing climate on ocean biology and biogeochemistry. The study will also help validate ocean color satellite measurements and refine biogeochemistry models of ocean processes.
Subtropical waters are reaching Greenland's glaciers and likely triggering an acceleration of ice loss, reports a team of researchers from the Woods Hole Oceanographic Institution (WHOI) and the University of Maine.
"This is the first time we've seen waters this warm in any of the fjords in Greenland," says Fiamma Straneo, a physical oceanographer from the WHOI. "The subtropical waters are flowing through the fjord very quickly, so they can transport heat and drive melting at the end of the glacier."
While melting due to warming air temperatures is a known event, scientists are just beginning to learn more about the ocean's impact — in particular, the influence of currents — on the ice sheet.
Researchers have developed a novel method for reconstructing past ocean chemistry using calcium carbonate veins that precipitate from seawater-derived fluids in rocks beneath the seafloor. The new method will help scientists analyze past changes in climate, plate tectonics and evolution of life in the oceans. The research is detailed in a paper published online in Science.
"These processes affect ocean chemistry and have shaped our planet over millions of years," said Dr Rosalind Coggon, a professor Imperial College London.
A group of marine organisms called Echinoderms, which includes starfish and sea urchin, has a significant impact on the levels of carbon dioxide in the Earth's atmosphere and that influence has been greatly underestimated by scientists, argues a new paper in Ecological Monographs.
"Climate models must take this carbon sink into account," says Mario Lebrato, lead author of the study. Globally, the seabed habitats occupy more than 300 million million square metres, from the intertidal flats and pools to the mightiest deep-sea trenches at 11,000 meters. The benthos – the animals living on and in the sediments – populate this vast ecosystem.
Scientists have recorded the deepest erupting volcano yet discovered--West Mata Volcano--located 4,000 feet below the surface of the Pacific Ocean, in an area bounded by Fiji,Tonga and Samoa.
The imagery includes large molten lava bubbles three feet across bursting into cold seawater, glowing red vents exploding lava into the sea, and the first-observed advance of lava flows across the deep-ocean floor. Sounds of the eruption were recorded by a hydrophone and later matched with the video footage.
With Tropical Storm Ida currently dumping rain and high winds in the southeast
we wanted to talk about coastal hazards. Coastal hazards along America's shorelines threaten a significant percentage of the U.S. population. Here is a quick beach quiz to find out how much
you know about your risks.1: What is a coastal hazard?
d) All of the above
e) None of the above 2: How many miles of shoreline does the United States have exposed to coastal
This post is not even remotely about a cephalopod, but because I mentioned polyps yesterday I feel justified in discussing a cnidarian. Besides, these headlines really got me steamed, and what better place to vent than a blog?Enormous Jellyfish Sink Japanese Fishing Boat
(Fox News)Japanese fishing trawler sunk by giant jellyfish
I need to call my broker and get in on some Arm&Hammer
stock, because, according to Steve Levitt, we're going to need a lot of base:
Of course, ocean acidification is an import issue. Now, there are ways to deal with ocean acidification, right, it's actually, that's actually, we know exactly how to un-acidifiy the oceans, is to pour a bunch of base into it, so, so if that turns out to be an incredibly big problem, then we can deal with that.
Beauty can't hide! Flower gardens exist in our vast oceans. Fishermen have long noted colored fish and coral reefs in the Gulf of Mexico. The flower gardens banks consist of coral-capped banks or sandstone banks with fire coral and sponge-laden pinnacles and flats. Thirteen red dots in the following map locate such banks so close to the northwestern Gulf shores. These coral reefs are the northernmost in the continental United States.
Scientists hope weather data from 18th century ships' logbooks will shed light on how the climate has changed in the past 200 years, according to this BBC report