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Tuesday, August 06, 2019

Alluvium and taniwha

The science with consequences:

Alluvial fans are often ... subjected to periodic flash floods from nearby thunderstorms in local hills. The typical watercourse ... has a large, funnel-shaped basin at the top, leading to a narrow defile, which opens out into an alluvial fan at the bottom. Multiple braided streams are usually present and active during water flows.

The river or stream carrying the sediment flows at a relatively high velocity due to the high slope angle, which is why coarse material is able to remain in the flow. When the slope decreases rapidly into a relatively planar area or plateau, the stream loses the energy it needs to move its sediment. Deposition subsequently occurs and the sediment ultimately spreads out, creating an alluvial fan.

Fast forward to the 21st century:

Up pops yet another climate seer ready to infest our local government. With more rates required of course.

says councils are having difficulty making climate-related decisions generally but they need to make sure Māori interests aren't forgotten

local councils could be making decisions that create problems for the Crown for modern Treaty breaches

And in the same article, the local tribalists have their say, ever ready to accept more bribes whilst not being beholden to anyone but themselves.  I also see one convicted ex-MP fraudster has thrown her outstretched hands into the mix.

The Māori legend was this flooding happens when occasionally the lizard flicks its tail and washes everything out from side to side

We will continue to seek resourcing from them to support our efforts but we're not waiting for them to determine what those efforts should be

Meanwhile in the real world:

No sign of mythical monsters anywhere in Greece where only optimists build on alluvial fans.  Or on Mars for that matter.  Earthquakes and rain do not mix.


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