Sunday, April 19, 2009

data 19/4/09

BREAK THROUGH spoke with local Paul Willsteed (Boreen point Local) and he guided me to information we needed for the engineer relevant to the lake on the BOM site (see below)
Lake Cootharaba/boreen point only experences one tide a day varing only 5cm Because of this limited change its reported to have hardly any prevailing currents (this fact was also agreed with locally)
Lake Cootharaba is about 10 kms long and 5 kms wide and is part of the Noosa River system and the Great Sandy Region. Average depth in the Lake is only 1.2m, you can touch bottom almost anywhere and the deepest bit is probably only just over 2m.-5m in centre. Half a metre out from shore the lake is no more than 1/2 metre, this is where we will be (will not be able to measure exactly at present because of the recent floods up there have created higher than normal tides)
Have attached information from BOM site (link below if needed) the closes site is Tewantin but Paul Willsteed reported that Tewantin will have similar weather data to the Lake.
Paul did mention that depending on wind direction there can be some wave action, but thought that the engineer would have a universal rule that could be applied to calculate windspeed to wave ratio's

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