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Latest Chemical oceanography Stories

Heavy Rains Increase Nutrient Pollution Flow Down Mississippi River
2013-07-29 12:32:11

NOAA NOAA-supported scientists found a large Gulf of Mexico oxygen-free or hypoxic "dead" zone, but not as large as had been predicted. Measuring 5,840 square miles, an area the size of Connecticut, the 2013 Gulf dead zone indicates nutrients from the Mississippi River watershed are continuing to affect the nation's commercial and recreational marine resources in the Gulf. "A near-record area was expected because of wet spring conditions in the Mississippi watershed and the resultant...

New Variability In Iron Supply To The Oceans With Climate Implications Discovered By Scientists
2013-07-19 09:44:51

National Oceanography Centre, Southampton (UK) The supply of dissolved iron to oceans around continental shelves has been found to be more variable by region than previously believed -- with implications for future climate prediction. Iron is key to the removal of carbon dioxide from the Earth's atmosphere as it promotes the growth of microscopic marine plants (phytoplankton), which mop up the greenhouse gas and lock it away in the ocean. A new study, led by researchers based at the...

Fish Species That Thrive In Bay Bottoms Are Being Impacted By Dead Zones
2013-07-09 07:35:36

April Flowers for redOrbit.com - Your Universe Online Scientists at the Virginia Institute of Marine Science (VIMS) have completed a 10-year study, providing the first quantitative evidence on a bay-wide scale that the distribution and abundance of "demersal" fishes -- fish species that live and feed near the Bay bottom -- are being impacted by low-oxygen "dead zones." Species affected by these dead zones, such as the Atlantic croaker, white perch, spot, striped bass and summer...

2013-06-27 16:22:12

COLLEGE STATION, Texas, June 27, 2013 /PRNewswire-USNewswire/ -- Ocean experts had predicted a large "dead zone" area in the Gulf of Mexico this year, and according to the results from a Texas A&M University researcher just back from studying the region, those predictions appear to be right on target. (Logo: http://photos.prnewswire.com/prnh/20120502/DC99584LOGO) Steve DiMarco, professor of oceanography and one of the world's leading experts on the dead zone, says he and a Texas...

Nutrient Pollution Could Cause Record-Setting 'Dead Zone' In Gulf Of Mexico
2013-06-19 07:08:41

April Flowers for redOrbit.com - Your Universe Online This year, scientists are expecting a very large “dead zone” in the Gulf of Mexico, according to several NOAA-supported forecast models. Those same models predict a smaller than average hypoxic level in the Chesapeake Bay. A research team comprised of scientists from the University of Michigan, Louisiana State University, and the Louisiana Universities Marine Consortium used the NOAA-supported models to forecast that this...

Ocean Springs Indicate Coral Response To Acidification
2013-06-18 10:29:16

April Flowers for redOrbit.com - Your Universe Online The density of coral skeletons will be reduced by ocean acidification due to rising carbon dioxide levels, according to an international group of scientists led by the University of California, Santa Cruz. The study, published in Proceedings of the National Academy of Sciences, focused on corals growing where submarine springs naturally lower the pH of seawater. The findings of this study are the first to show corals are not able to...

New CO2 Removal Technique Produces Green Fuel, Offsets Ocean Acidification
2013-05-29 10:31:52

April Flowers for redOrbit.com - Your Universe Online A new technique to remove and store atmospheric carbon dioxide has been demonstrated by scientists at the Lawrence Livermore National Laboratory (LLNL). The new technique also generates carbon-negative hydrogen and produces alkalinity, which can be used to offset ocean acidification. At laboratory scale, the team demonstrated a system that uses the acidity normally produced in saline water electrolysis to accelerate silicate mineral...

Dead Jellyfish Help Absorb Carbon Dioxide
2013-05-29 09:55:33

Rebekah Eliason for redOrbit.com — Your Universe Online Humans constantly produce carbon dioxide (CO2), both naturally and as a byproduct of industrial processes. The ocean absorbs about 25 percent of the carbon dioxide emitted by human activity. Tiny organisms called plankton live in the ocean and break down this natural greenhouse gas by converting itinto sugars and carbohydrates through photosynthesis. In order to understand the efficiency of the ocean´s carbon...

ESA’s SMOS And NASA’s Aquarius Missions Monitoring Ocean Salinity
2013-04-22 14:21:15

ESA [ Watch The Video Freshwater Plume From SMOS And Aquarius ] The saltiness of the oceans is being closely monitored from space by both ESA´s SMOS and NASA´s Aquarius missions, but in slightly different ways. By joining forces, researchers are exploiting these complementary missions to benefit climate science even further. Everyone knows that seawater is salty, but it isn´t that obvious that the concentration of salt — the salinity — of the surface waters...

Charcoal From Wildfires Enters Waterways And Works Its Way To Oceans
2013-04-20 07:14:14

redOrbit Staff & Wire Reports - Your Universe Online New research claims charcoal created from wildfires does not remain in the soil as previously believed, but is instead transported into the sea by rivers, where it ultimately enters the carbon cycle. That determination was made by an international team of researchers, including Thorsten Dittmar from the Max Planck Institute for Marine Microbiology (MPI) in Bremen and Rudolf Jaffé from Florida International...


Latest Chemical oceanography Reference Libraries

Ocean Acidification
2013-04-01 10:32:20

Ocean acidification is the name that was given to the ongoing decrease in the pH of Earth’s oceans, a cause of the uptake of anthropogenic carbon dioxide from the atmosphere. About 30 to 40 percent of the carbon dioxide that is released by humans into the atmosphere dissolves into the lakes, oceans, and rivers. To maintain the chemical equilibrium, some of it reacts with the water to create carbonic acid. Some of these extra carbonic acid molecules react with a water molecule to provide a...

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