Latest Physical oceanography Stories
A new analysis of rain patterns has revealed that extreme El Niño events, such as the 1983 heat wave that caused Australia’s Ash Wednesday bushfires, will double as the planet warms in the years ahead.
New research of the ocean’s hidden waves was conducted in a lab and in the South China Sea. According to a January 8 report from MIT news, internal waves can be hundreds of feet tall and produce damaging effects to the climate and the ocean’s ecosystem.
Sea-level changes projected to occur around Los Angeles could increase the flood risk for the coastal city’s roads, wastewater systems and low-altitude communities, University of Southern California (USC) researchers claim in a new report.
Pine Island Glacier, one of the largest routes for ice to flow from Antarctica into the sea, is far more susceptible to climatic and ocean variability than previously believed, according to research published Thursday in the advanced online version of the journal Science.
An “extensive” new aquifer discovered in the Greenland Ice Sheet by an international team of researchers contains liquid water year-round, according to research published in Sunday’s edition of the journal Nature Geoscience.
In addition to providing shelter and being an important part of a marine ecosystem, coral reefs can also serve as a record of long-term changes to the ecosystem.
Researchers at the National Oceanography Center say that the risk posed by tsunami waves generated by Canary Island landslides may need re-evaluation. Their findings suggest that these landslides result in smaller tsunami waves than previously thought by some authors, because of the processes involved.
With news out of San Francisco this week, at the autumn meeting of the American Geophysical Union (AGU), we learned scientists have incorrectly estimated the amount of ice being lost on the polar continent of Antarctica. This environmental faux pas directly affects the estimates on global sea level rise as well.
NASA has enhanced existing GPS technologies to develop new systems for California and elsewhere to provide warning of hazards such as earthquakes, tsunamis and extreme weather events.
Geoscientists at Rutgers and Tufts universities estimate that the New Jersey shore will likely experience a sea-level rise of about 1.5 feet by 2050 and of about 3.5 feet by 2100 – 11 to 15 inches higher than the average for sea-level rise globally over the century.
Coral reefs are submerged structures consisting of calcium carbonate secreted by corals. Coral reefs are colonies of small animals found in marine waters that enclose few nutrients. The majority of coral reefs are constructed from stony corals, which then consist of polyps that come together in groups. The polyps are like small sea anemones, to which they are very closely related. Unlike the sea anemones, coral polyps secrete hard carbonate exoskeletons which provide support and protections...
The sea levels all around the world are rising. Current sea-level rise has the potential to affect human populations and the natural environment. Two key factors have contributed to the observed sea level rise. The first is thermal expansion: as the ocean water warms, it expands. The second is from the influence of land-based ice because of increased melting. The major store of water on land is found in the glaciers and the ice sheets. The rising of sea levels is one of several lines of...
Image Credit: Meteorologist Joshua Kelly When meteorologists are forecasting for ocean-going vessels, there are a few terms that we need to understand. The first term is wavelength. Wavelength is defined as the distance between two crests or between two troughs as seen in the image above. The example above highlights the crest to crest concept of wavelength. The next term that we use is wave height, and to determine this, we first must look at the wave when it passes our station. When...
If you live in or around Billings, Montana the above graph shows you what you can roughly expect when it comes to heating and cooling your house during the ENSO Phases. In Billings during a normal phase of the ENSO your heating degree days pass 900HDD. However, when El-Nino phase is present the monthly average dropped to around 650.5HDD, which is a pretty significant amount especially when you are talking about paying that heating bill. When the La-Nina phase sets up the heating degree...
If you live in or around Bismarck North Dakota the graph shows you what you can roughly expect when it comes to heating and cooling your house during the ENSO Phases. Bismarck North Dakota, with its northern latitude, does have an impact on what type of heating and cooling it sees. During an Normal Phase the HDD for the region hits about 1348 on average. When the region enters into an El-Nino they can expect the amount of HDD’s to decrease to around 970 which really helps cut down on the...
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