Even today, estimates of total groundwater recharge vary greatly for the same region depending on what source is used, and cases where fossil groundwater is exploited beyond the recharge rate ( including the Ogallala Aquifer ) are very frequent and almost always not seriously considered when they were first developed.
22.
In addition to the increased risk of salinized by the sea-level rise, the freshwater lens is at risk from over extraction due to the large population that now occupies Fongafale islet; the increased extraction can be exacerbated by a decrease of the rainfall recharge rate associated with the climate change.
23.
Robots have a wide variety of characteristics, including ( but not limited to ) reactor size, CPU ( robot's computer processing power ), accumulator size and accumulator recharge rate ( functionally, a battery for activating high powered systems ), armor, maximum velocity, locking range, time and maximum number of lockable targets.
24.
It is estimated to contain about of water ( arguably the largest single body of groundwater in the world, although the overall volume of the constituent parts of the Great Artesian Basin is much larger ), with a total recharge rate of about 166 km?/ year from politicised, and the control of the resource becomes ever more controversial.
25.
The water district has said it will not withdraw more than can be naturally recharged, and while estimates have varied widely some scientists have said the natural recharge rate may be so slow as to render the aquifer all but useless as anything more than a storage site for any excess Colorado River water, which is likely to become increasingly scarce.
26.
The geyser used to pop off roughly every 60 minutes but shifting forces beneath the ground have created a bimodal pattern of eruption, said Dr . Stuart Rojstaczer, a hydrologist at Duke University, in Chapel Hill, N . C . It tends to erupt every 40 minutes or 70 minutes, depending on the recharge rates and how rock permeability changes with steam content, he said.
