Table of Contents
- 1 When ice forms on the surface of the ocean does the remaining water get saltier?
- 2 How does evaporation change the ocean water that is left behind?
- 3 How does the sea ice change throughout the year?
- 4 How does ice form without water?
- 5 When the water evaporates from the ocean the salt is left behind in the ocean?
- 6 What happens to the water when sea ice forms?
- 7 How does sea ice contribute to the ocean conveyor belt?
- 8 How is sea ice different from land ice?
When ice forms on the surface of the ocean does the remaining water get saltier?
As you saw earlier, salt is forced out of the ice crystals when sea ice forms, causing the surrounding water to become saltier. This saltier water is more dense and therefore sinks. Surface water is pulled in to replace the sinking water, which in turn eventually also becomes cold and salty enough to sink.
How does evaporation change the ocean water that is left behind?
Evaporation from the oceans is vital to the production of fresh water. When that water evaporates, the salt is left behind. The fresh-water vapor then condenses into clouds, many of which drift over land. Precipitation from those clouds fills lakes, rivers, and streams with fresh water.
How does sea ice melting affect ocean water salinity?
Deep, cold water During the freezing process, the salt in the sea water is rejected, thereby increasing the salinity of the remaining sea water. When the ice melts, the fresh water is released back into the ocean, thus freshening it.
How does the sea ice change throughout the year?
Sea ice is frozen water that forms, expands, and melts in the ocean. This begins a cycle of warming and melting. Warmer water temperatures delay ice growth in the fall and winter, and the ice melts faster the following spring, exposing dark ocean waters for a longer period the following summer.
How does ice form without water?
Ice, being frozen water, CANNOT form if there is no water. As warm air comes in contact with a cold window pane, it’s temperature is lowered and the water vapor that it can no longer hold condenses. If the temperature of the pane is below 0°C (32°F). that water freezes to become ice on the window pane.
What happens when ocean water evaporates?
The water is evaporated into the air, forms or goes into clouds, and then returns in the form of precipitation. This is what is called the water cycle. When ocean saltwater evaporates, the salt in the water is left in the water. This causes the saltwater to become heavily laden with salt.
When the water evaporates from the ocean the salt is left behind in the ocean?
Salt in seawater is merely dissolved in the water, not chemically bonded to it. When water evaporates (one molecule at a time), only pure water returns to the atmosphere. Salt and other impurities are left behind.
What happens to the water when sea ice forms?
The ocean is salty and when sea ice forms, much of the salt is pushed into the ocean water below the ice, although some salt may become trapped in small pockets between ice crystals. Water below sea ice has a higher concentration of salt and is denser than the surrounding ocean water, so it sinks and moves from the surface.
What happens to the water when polar ice melts?
Heat and water vapor are redistributed globally through density-driven ocean currents and atmospheric circulation. Changes in ocean circulation caused by tectonic movements or large influxes of fresh water from melting polar ice can lead to significant and even abrupt changes in climate, both locally and on global scales.
How does sea ice contribute to the ocean conveyor belt?
In this way, sea ice contributes to the circulation of the global ocean conveyor belt. Cold, dense polar water descends from the surface and circulates along the ocean bottom toward the equator, while warm water from mid-depth to the surface travels from the equator toward the poles.
How is sea ice different from land ice?
Sea ice is frozen water that forms, expands, and melts in the ocean. It is different from icebergs, glaciers, ice sheets, and ice shelves, which originate on land. For the most part, sea ice expands during winter months and melts during summer months, but in certain regions, some sea ice remains year-round.