The evidence of sea floor spreading was further supported by Vine and Drummond, who studied the magnetic pattern of the sea floor. They found that the Earth’s magnetic field changes over time, because as magma from the mantle rises to the crust it cools but the basalt will align to the field it cools to. It is also found that on either side of mid oceanic ridges there were symmetrical magnetic patterns, so suggesting that the ocean was created at the mid oceanic ridges and as new ocean floor cooled, it pushed the crust away. Both Hess and Vine and Drummond found evidence that is crucial to the explanation of how continental drift happened, and it is very important in the development of geologists understanding, however other people found evidence to support continental drift also. Dan McKenzie went on to further explain sea floor spreading, being able to explain why new crust was made at mid oceanic ridges.
Hurricanes need the ocean’s water temperature to be about 80 degrees to a depth of about 150 feet. Another factor of the forming of hurricanes is the rapid cooling of the warm water vapors that were evaporated, which causes condensation (the second step of the water cycle). The third step of the water cycle is precipitation and that happens when too many water vapors are condensed and rain starts to fall. Humidity is also needed in the
One more similarity is the equipment they used to get the results for example they both used temperatureDetermining global warming effects on weather can be done in many different in these two articles I found that you can use ice or water. In the rising of the seas they explain how the melting of the ice caps raise the sea level but in the greenhouse. It breaks down how they can use ice to determine the future weather. Global warming is something more people need to be aware of and get more knowledge on, because after reading these two articles I found out what our world might become just by looking into the past. These two article had there similarities and differences in how they go about finding out about the past but yet both are very
This happens when the normal winds weaken which allows the warm water that is usually found in the western Pacific change direction and instead move towards the east. This warm water replaces the cold water which is normally found near the surface of the eastern Pacific. All these occurrences are what affects a lot of weather patterns in many parts of the
OceanTracer 8. Hockey Stick Diagram The average annual salinity of ocean surface water Ocean Currents * Wind driven * Surface currents * Upwelling * Thermohaline circulation * Thermo – temperature * haline – salinity
An example of this can be found in glaciation. During glaciations the weight of ice pushing on the Earth can depress the crust, causing the land to fall relative to the level of the sea. When the ice goes in warmer periods the land rebounds upwards as Scotland and Northern Britain are today - rising relative to the level of the sea. Eustatic sea level change is a GLOBAL change in sea level, linked directly to the temperature of the Earth. In warmer periods there is less ice and the water is warmer, so expands and sea levels rise.
Due to this convergence (where winds move to a center point), air is forced to rise over that area. If enough moisture is available, the rising air cools and condenses (as cold air cannot hold water vapor below a certain temperature) into tiny water droplets which constitute the cloud. So, low pressure areas are usually the birth-place of clouds. Sometimes, particularly in the winter, fog forms over a high pressure area due to radiation cooling(due to clear sky conditions over a high pressure area).This fog sometimes lift and forms thick low cloud called "anticyclone gloom". (5 points) |Score | | | 4.
A hypothetical continent 3. Use your understanding of global air circulation and wind patterns to draw arrows on the map of the hypothetical continent indicating: a. The direction of prevailing winds at points W1, W2, and W3 b. The direction of flow of surface currents in the ocean at points O1, O2, and O3 (Hint: Note on the map in Figure 50.10 that surface currents in the ocean follow the major wind systems at the surface.) 4.
Where is all this melting ice going? “Sea level rise is caused by two factors related to global warming: the added water coming from the melting of land ice and the expansion of sea water as it warms up” (Global Climate Change: Key Indicators, 2014). All these indicators data need to be studied as
Perth’s climate also assists the issue of photochemical smog as plenty of sunlight with moderate winds and high temperatures arise. Morning peak hour pollution is blown out to sea by north easterly winds. If is then warm enough the chemical reaction mentioned above occurs to produce photochemical smog, the Fremantle doctor (strong westerly) then returns it over the city. The Darling Range and Fremantle doctor acting as barriers along with high pressure systems that bring masses of UV and Perth’s high car usage result in the city being a photochemical smog hotspot. Another form of atmospheric pollution that occurs in Perth is Haze.