Home |
Search |
Today's Posts |
#1
|
|||
|
|||
Oh Great! "Giant Waves"
http://news.bbc.co.uk/2/hi/science/nature/4739741.stm
Key excerpts: Hurricane Ivan generated a wave more than 90 feet (27 metres) high - thought to be the tallest and most intense ever measured -- The distance between the crest of the biggest wave and its trough was 91 ft (27.7 metres) but they suspect the instruments missed some waves that were as tall as 132 ft (40 metres). |
#2
|
|||
|
|||
I copied this:
According to Ned Mayo (see Ref), the highest reliably measured ocean waves were reported by officers of the Navy oiler USS Ramapo in the North Pacific on February 7, 1933. By triangulation on the ship's superstructure, they measured a wave height of 34 meters (112 feet) peak to trough. The period of the wave was 14.8 seconds and its wavelength was calculated to be 342 meters. Using the wave velocity expression for this wavelength in the deep water limit, the wave speed is calculated to be 23 m/s. Mayo calculates the power of one meter length of such a wavefront to be 17,000 kilowatts! The crew of the Ramapo measured these waves and lived to tell about it because their relatively short ship(146 m =478 ft) rode these very long wavelength ocean mountains without severe stresses on the craft. Mayo expresses concern about the safety of some modern giant ships (250 meter length) in such seas. From http://hyperphysics.phy-astr.gsu.edu/hbase/watwav.html Take it for what it is worth. BS wrote in message ... http://news.bbc.co.uk/2/hi/science/nature/4739741.stm Key excerpts: Hurricane Ivan generated a wave more than 90 feet (27 metres) high - thought to be the tallest and most intense ever measured -- The distance between the crest of the biggest wave and its trough was 91 ft (27.7 metres) but they suspect the instruments missed some waves that were as tall as 132 ft (40 metres). |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
rec.boats.paddle sea kayaking FAQ | General | |||
rec.boats.paddle sea kayaking FAQ | General | |||
rec.boats.paddle sea kayaking FAQ | General | |||
rec.boats.paddle sea kayaking FAQ | General | |||
GRETTIR'S SAGA (continued) | ASA |