The largest reservoir (oceans) has the longest residence time for water molecules. The atmospheric store is the smallest and therefore has the shortest retention time.
Ice caps have the longest residence times, with residence times of up to 400,000 years recorded in an ice core from Vostok, Antarctica. Underground water can be stored in loose sediments near the surface or in porous rocks such as limestone and sandstone.
The residence time of water in the ocean is much shorter – about 3,200 years. The residence time of water in the atmosphere is the shortest of all – about nine days.
Dwell time describes how long water stays in a reservoir before it escapes. The water in the atmosphere stays there for an average of 15 days, while the soil moisture lasts for a few months. Lakes replenish their water every 50 to 100 years and groundwater can remain in the reservoir for 100 to 10,000 years.
Each of the Great Lakes has a different retention time. Lake Superior’s retention time is much longer than the others: 194 years compared to just 75 years for Lake Huron, for example. Because water mixes as it enters and exits, only half of Lake Superior’s water exits over the course of 194 years.
The residence time of water in the groundwater portion of the water cycle is much longer than in other parts of the water cycle such as B. the surface water area or the atmosphere.
Residence time measures how long a single water molecule remains in a water source. The slower the water source exchanges water with other sources, the longer the residence time. Thus, the slow groundwater source has the longest residence time since the groundwater has to flow to another source.
Dwell time is a measure of the reactivity of a substance in a reservoir. It can also be thought of as the average time a substance is likely to spend in a reservoir before being removed by a process.
The residence time in lakes and glaciers varies from 20 to 100 years, but the longest residence times are in the ocean (3,200 years) and in groundwater (up to 10,000 years). p>
Answer and explanation: The shortest carbon sink is found in the tropical rain forests, where the nutrient cycle is very fast. Plants in this region can grow, die,…
Which of the following carbon stores has the longest residence time: plants, oceans or sedimentary limestone? Sedimentary limestone because a carbon atom can spend millions of years in the sedimentary/metamorphic rock reservoir while spending a short time (years to millennia) in the other reservoirs.
The average residence times of carbon in the atmosphere (5 years), the biosphere (13 years) and the oceans (350 years) are much shorter.