Taiping is the only island with its own water. The Fiery Cross island, if well designed, will have even more water. I won't bet that China has forgotten the water supply when it was designed.
The fresh water is derived from rain. The new island must have been designed so that rain water will not immediately mix with sea water as is naturally the case in Taiping.Power and freshwater will be the biggest logistical challenges if this will become a base like Diego Garcia. I don't know how far along China is with miniature reactors or the collaboration with the Russians on floating reactors but if they are not planning on transporting in freshwater (itself an expensive endeavor), filtration or desalination will require lots of power.
Did Diego Garcia ever get an OTEC power plant. It was proposed at the time for the unit to produce 8MW a day and 1.25 million gallons of potable water.
The fresh water is derived from rain. The new island must have been designed so that rain water will not immediately mix with sea water as is naturally the case in Taiping.
It will depend on the eventual size of the island. The water collected will be proportional to its area, the loss to the sea has more to do with the length of the coast line and the character of the material along the coast. And of course what we mean by "meaningful base".Rain water will supplement but I don't think it will be enough if they are establishing a meaningful base.
Rain water will supplement but I don't think it will be enough if they are establishing a meaningful base.
There are naturally occurring wells on the island, but many contain large concentrations of chloride salts; there are a few wells on the eastern side of the island with acceptable quality freshwater, whilst the rest are not suitable for drinking. In the 1980s, the Republic of China (ROC) Ministry of National Defense drilled various wells 600 metres deep throughout the island. In 1992, a water catchment, reservoirs and other facilities were constructed. In 1993, two complete desalination machines were placed on the island, which operate for four hours each day, generating approximately 6,000 gallons of fresh water.
Even on Taiping Island (0.5 sq km) with fresh water sources, the local water is only used for washing, cleaning and shower. Drinking water is still needed to be provided by desalination machines.
from Wikipedia:
I am curious to see if after China reclaimed Fiery Cross Reef to larger than 1 sq km, the island could start to harvest its own fresh water.
On Taiping Island, Taiwanese have accidentally found an unfinished submarine base, 200 meters underground, built by the Japanese back in WWII. So it would be interesting to see is if China were able to build an underground submarine base on its reclaimed reefs like Fiery Cross.