SST Anomalies Essay

Scientists used to believe that rogue waves could appear at any particular area of ocean only once every several millennia; however, recent oceanographic data suggest these waves are far more common than originally believed

of a rich Ir anomaly on a global scale within the K/T boundary layers of both marine and continental facies has been interpreted as highly impressive evidence for an impact origin. Another discovery that may serve as a marker of an event is microspherules. A variety of microsherules have been discovered in the PTB layers of the Meishan section (Xu et al., 1989). The origin of the microspherules could be multiple. They are small circular indentations in the rocks and the most abondent elements are Si or Si-Al. Mircospherules are similar to cosmic dust. Since a large amount of microspherules occurs in a thin layer of PTB layer it can serve as another event marker.<br><br>Maxwell (1989) who got his information from Clark et al. (1986) said that<br><br>The elemental in boundary clays across China suggest that there is a remote possibility that the predominantly illite boundary clay is a remote possibility that the predomonantly illite boundary clay resulted from the alteration of ejecta dust from a comet impact, but the most likely source was ash from a massive volcanic eruption.<br><br>The trace elements suggested that the dust was highly acidic and the ratios of TiO2 and AL2O3 are low enough to support the volcanic dust scenario

However, it was not until the second half of the 20th century that three major discoveries began to suggest how this might be possible. In 1948, a survey of the floor of the Atlantic Ocean revealed a continuous ridge running largely north to south. IT was around 1,000km wide and reaching heights of 2.5km. It was composed of volcanic rocks. Similar submarine mountain ranges were later found in the Pacific Ocean extending for over 5,000km. Magnetic surveys of the ocean floor in the 1950’s showed surprisingly regular patterns of palaeomagnetic striping about the ridges. When lavas erupt on the ocean floor, magnetic domains within iron-rich minerals in the lava are aligned with the magnetic field of the earth. This is fixed as the lava cools, and unless the rocks undergo major disturbance, they continue to record the earth’s polarity at the time of their cooling. However, as the earth’s polarity reverses around every 400,000 years, bands or stripes of normal and reverse polarity rocks are mirrored on either side of the mid-ocean ridges. This suggests that new rocks are being added equally on either side.

Questions were raised when rocks were found on the surface of the Earth that had manetization the did not corralate to the location that it was found. Also, Harry Hess suggested that the continents could have drifted and still were because the sea floor was moving much like a conveyor. (Bugielski, 1999).

by reconstructing how it changed across time periods when the Earth was warming," said the

But there’s more new studies say that there could have been more then one impact that was left undiscovered because of continental drifting

The abnormalities of the vast open ocean were first recorded in 1950 by Edward Jones in Miami’s daily newspaper. However, the mystery

Welcome to one of the planets most obscure but important features, known rather prosaically as the mid ocean ridges. In 1973 a group of oceanographers discovered this ridge of mountains on the ocean’s floor. Since then, they have been more closely exploring the ridges and studying how they move and exactly what they are. They have come to discover, that the “ridges feature long rift valleys and, down their middles, giant fields of gushing, hot springs that shed tons of minerals into icy sea water at the bottom of the sea,” which over time has come to create these huge mid-ocean ridges where many animals like to live, cause its some warm.” A main question is to what extent the volcanism changes over time. The old idea was that the eruptions

In the warm waters of the equatorial Pacific, waters rise to the surface. 6. Which factor in creating currents has the greatest influence on weather

In Phase 1, the center of the MJO (or where the center of the majority of the largest positive anomalies in the rainfall) starts in the western Indian Ocean, as shown in Figure 2

Another cause is the formation of submarine, volcanic ranges, which would cause transgression. The subsequent subsidence of the submerged volcanic ranges would result in regression. Since the ocean floor over 200 million years old has been removed through plate tectonic subduction, the remnants of those marine volcanoes, if they formed during the P-T transition , would not be observable today.

Climate change has shown itself in many different ways. For instance, the global temperature has gone up little by little since 1880 (Shaftel). This then accumulated to an increase of 1 degree Celsius in 2015 (Shaftel). The global temperature rise shows that the earth is heating up due to the heat being trapped by the greenhouse “blanket” created by humans. Along with rising global temperatures, the ocean’s water level has risen roughly

For decades, many scientists denied the existence of these so-called "rogue waves", claiming that they were simply exaggerations made up by sailors, and that such a wave could never arise seemingly out of nowhere, as many stories described. However, as technology improved, satellite imaging confirmed their existence. This confirmation started a race to predict rogue waves, and to understand how they work. While it is still not possible to predict exactly when and where a rogue wave will occur, it is possible to predict where they are most likely to happen.

Although relatively small in area, coastal polynyas play a disproportionately important role in many important physical and biological processes in the high-latitude Southern Ocean, as well as having an impact on global ocean circulation.

The weak El Niño in the winter of 2006-07 provided a totally different story than what we saw in the very