what would you h
ave done in these situations heavy water fall
Answers
Answer:
avoid people from going to those areas
Answer:
If there is white water, if the water is foaming or disturbed by rocks or falling a distance, then you lose buoyancy. ‘White water is water mixed with air, and air bubbles have less density than water. So you lose your buoyancy in it, are affected by gravity much more and may very well sink,’ says Lynne Roper. ‘If you’re not experienced that’s the kind of thing that can make you panic, and panicking can get you into trouble.’ It is instinctive to try to swim against the current, back up thorough the bubbles, but you have to exit that stream of air filled fluid through the water around you and then surface.
SIPHONS AND SIEVES: WATER HAS A LOT OF POWER WHEN IT MOVES
Water has a lot of power when it moves and one of the key hazards is a siphon. ‘Kayakers are the real experts in this,’ says Lynne. ‘But if there’s a gap between some rocks and water is forced through a smaller hold, then it’s the equivalent of a plug – a swimmer can get sucked in, plug the gap and then not move out again because they are pinned by the weight of the water.’ This is called a siphon.
‘A fallen tree or roots overhanging a bank can create the same effect, but this is called a sieve. In strong currents a swimmer can find they are pushed against roots or the bank, and the water holds them against it, and they can’t get away: the weight of the water holds them there.’
FLASHY RIVERS HAVE FLUCTUATING HAZARDS
Flashy rivers are ones where conditions change quickly with rainfall. There are various dangers associated with a flashy river, like those seen on Dartmoor and Snowdonia. A stream that was friendly and benign can, after a short period of heavy rainfall, rise by as much as 2-3ft and then have completely different risks and hazards. For example: you may become much more likely to get trapped against rocks or a fallen tree and held there by the strength and weight of the water.