Oceanographt- Chapter 11 - Essay Example

Key Words: Gravitational Pull/Force, Planet Earth, Moon, Sun, Tide, Rotation, Oceanographt- Chapter 11 Undeniably, this is an informative chapter whose content comprise of causes, formation and nature of tides. Through this chapter, I have learnt how sun and moon despite being miles away from the planet earth, their varied gravitational pulls contribute immensely to the occurrence of tides. Hence, leading to unending tidal action whose effects both to humanity and aquatic life differ greatly. Besides, tides’ magnitudes vary considerably due to the sun and moon placement in relation to the position of the planet earth.

For illustration, the moon’s movement, which results to the formation of strong Tractive Forces due to the gravity between them that pulls and brings them together. However, their individual inertias keep them apart so that they cannot smash or interfere with each other’s orbiting track. In addition, I have also learnt that, tides’ forces similar to wind can be useful in energy production, though this venture has not received adequate funding and implementation. This is especially in US, where despite Roosevelt outlining benefits, which the state can attain from utilizing tides’ energy, the regime during then failed to embrace this idea.

The state refused funding the venture despite seeing its benefits in France, though US regime’s then decline was due to differences emanating from its parties’ varying policies held by each side. The excerpt contends that, among the numerous benefits, which the state utilize tides; the dominant encompasses traditional shipping though presently there are improvements. Since, they have resulted to utilizing diesel driven equipments that are faster than traditional yachts. The intriguing aspect encompasses how tidal friction leads to the slowing of earth’s turning.

Since, the daily action of these tides normally entails immense energy expenditure, which in turn dissipates it as heat; hence, slowing earth turning by hundredths of a second in every century. Consequently, this has prompted the earlier one year that had approximately between 400 to 410 days to reduce as well as its day duration, which presently comprise of long days. This is because the moon faces one side, hence prompting one day in the moon to be almost a month comparable to earthly time.

It is also intriguing how tides’ actions array aquatic lives forms into diverse categories according to their species and size. This is evident in the chapter’s illustration depicting grunion at the shore though proven scientists’ studies contend this is a process of this fish’s species reproduction process. This is an informative content though some sections entail intensive research because to numerous readers it may seem more of mysteries than reality. The sections encompass diminishing of days owing to reduced earth rotation momentum and grunion’s phenomenal array during tidal actions.

Besides, the chapter present a rich content meant for research especially to numerous geographers who may need basic information regarding tidal actions. However, some sections seem complicated for the beginners who may not have adequate interpretational skills regarding certain geographical statistics. For illustration, the estimation of amphidromic data that is essential in determination of tidal effects in regions that are under study. Chapter 11 TestQuestion 1 b & cQuestion 2Mean Lower Low WaterQuestion 3Mixed tidesQuestion 4The Earths polesQuestion 5Advance of a low pressure systemQuestion 6Shallow water Question 7The MoonQuestion 8Fixed wavesQuestion 924 hours 50 minutesQuestion 10Neap tidesQuestion 11lowest, highestQuestion 12Astronomical tidesQuestion 13Counterclockwise, clockwiseQuestion 14IncreasesQuestion 15Tidal datumQuestion 1615 metersQuestion 17Tidal boreQuestion 18Flood currentQuestion 19 Meteorological tidesQuestion 20 France