thanks so much for this topic.
thanks so much for this topic.
This is an exciting course, will love to read more about this.
How deep are the ocean currents?
i really enjoyed to read about ocean current how it generate and it significant.
Why is coastal climate are less extreme than inland climate
Las corrientes oceanicas tambien son importantes en ayudar a regular el clima local de muchas regiones de la tierra
Las corrientes oceánicas son desplazamientos de masas de agua debido a la acción del viento y las diferencias de temperatura y salinidad.
I am surprised they haven't mentioned La Nina because when one side of the El Nino with extreme heat and drought the other heavy rain and floods.
hay diferentes factores los cuales hacen resaltar las corrientes oceánicas, estas componen más del 70% de toda la tierra (hablando de su contenido H2O) sabemos también que este liquido es como un resorte para las altas temperaturas que actualmente se presentan. las corrientes oceánicas se impulsan por el viento formando un efecto Coriolis, esta hace fluir la corriente en patrones circulares.
¿cual es el factor mas importante de las corrientes oceánicas?
The surface of the earth is over 71% water, so it is not surprising that oceans have a significant effect on the weather and climate. Because of the high heat capacity of water, the ocean acts as a temperature buffer. That is why coastal climates are less extreme than inland climates. Most of the radiant heat from the sun is absorbed by ocean surface waters and ocean currents help distribute this heat.
Currents are the movement of water in a predictable pattern. Surface ocean currents are driven mostly by prevailing winds. The "Coriolis Effect" causes the currents to flow in circular patterns. These currents help transport heat from the tropics to the higher latitudes.
Two large surface currents near the United States are the California current along the west coast and the Gulf Stream along the east coast.
Deep ocean currents are driven by differences in water temperature and density. They move in a convective pattern. The less dense (lower salinity) warm water in the equatorial regions rises and moves towards the polar regions, while more dense (higher salinity) cold water in the polar regions sinks and moves towards the equatorial regions.
Sometimes this cold deep water moves back to the surface along a coastline in a process known as upwelling. This cold deep water is rich in nutrients that support productive fishing grounds.
About every three to seven years, warm water from the western equatorial Pacific moves to the eastern equatorial Pacific due to weakened trade winds. The eastern Pacific Ocean thus becomes warmer than usual for a period of about a year. This is known as El Niño. El Niño prevents the nutrient-rich, cold-water upwellings along the western coast of South America. It also impacts the global weather conditions. Some regions receive heavier than usual rainfall, while other regions suffer drought conditions with lower than usual rainfall.
Probably the most important part of weather is precipitation as rainfall or snowfall. Water from the vast salty oceans evaporates and falls over land as fresh water. It is rainfall that provides fresh water for land plants, and land animals. Winter snowfall in mountainous regions provides a stored supply of fresh water which melts and flows into streams during the spring and summer.
Atmospheric clouds are the generators of precipitation. Clouds form when a rising air mass cools and the temperature and humidity are right for condensation to occur. Condensation does not occur spontaneously, but instead requires a condensation nuclei. These are tiny (less than 1µm) dust or smoke particles. The condensation droplet is small enough (about 20 µm) that it is supported by the atmosphere against the pull of gravity. The visible result of these condensation droplets is a cloud.