Real-time Earth and Moon phase

Friday, September 24, 2010

A tragedy happened in Karon Beach, Thailand

This tragedy happened in June but it was just reported in Australia ninemsn news today:

A UK backpacker drowned after being swept from the arms of her boyfriend as they were swimming at a beach in Thailand.

Rebecca Callaghan, 21, was embracing her boyfriend Ian Fenwick in calm, knee-deep water off Phuket on June 12 when a freak wave knocked them over, an inquest into her death has heard.

Mr Fenwick was pulled underwater and when he managed to surface, he saw his girlfriend floating face down, the Daily Mail reports.

"We stood in the water up to our knees, hugging, when a wave came from behind and knocked us off our feet," he told Worcestershire Coroners' Court.

"I remember feeling her arms let go of me."

Though Ms Callaghan was described as being a strong swimmer and diver, she was unable to battle the powerful rip off Karon Beach.

Though the beach is a popular tourist destination, more than 20 people have drowned there in the past year.

Ms Callaghan had been saving money for four years for her backpacking trip, which was set to include Australia and Indonesia.

The U.K. dailymail online also reported this case with an added picture of the beach:

There is not much more one can say about this tragic event. Especially when we see the picture of the beach where this case was taking place. We can just wonder how can something like that can ever happen?

A reader named Rick made this very good comment in the Dailymail article: I was on this beach in March and was just up to my knees in the sea when a wave knocked me over. The weight of water was enormous and the undertow very strong. Luckily I managed to crawl out the sea on all fours and did not go in again for my whole stay. It really is a treacherous tho beautiful beach. BEWARE.

Clearly that had happened before and will happen again. As the brother of the victim commented: "You can be the best swimmer in the world and this can still happen." We have seen plenty of this kind of cases from all over the globe over the last few years. So, what else? Just beware!


Sunday, September 19, 2010

"The Wave" a first read.


I did not get around to go to Barnes&Noble or Border book stores. But yesterday when we were shopping at Target I was thrilled to find they carried this newly released book. So for the first time in my adult life, I purchased a brand new book in the first week of its release.

Being totally ignorant of the existence of this book and the author, I was eager to find out who were the expert scientists that the non-scientist, journalist author got her information and knowledge from. I did not start reading the book at the beginning. I jumped directly to the chapter that has the title "Schrodinger's Wave" which was indeed a document of how and where she encountered the scientists: the 10th International Workshop on Wave Hindcasting and Forecasting and Coast Hazard Symposium in the north shore of Oahu, Hawaii in November, 2007.

I was not too impressed at first as the author somewhat overblown the event by comparing the Workshop with the Tahiti Teahupoo for world surfers and saying that the workshop attendants "temporarily tripling the north shore's per capita IQ." There are all kinds of conferences where wave aficionados gather yearly all around the world here and there, this wave hindcasting and forecasting workshop may or may not even on the list. The organizers had always cleverly select attractive places for their meeting. This one in the north shore in 2007 clearly attracted more people than usual, many of them might not have attended the previous workshops.

But as a professional journalist, she masterfully described the scenes of the conference: the registration, the posters, and the chitchats over beer at the ice breaker. Not being at the workshop myself (As it was during the same time period while I was going through my retirement, I submitted an abstract at Don Ratio's invitation and later withdrew because I was just not quite up to the travel at the time and I was also not too excited about the program.) She zoomed into the only session that I most liked to attend -- the Extreme Wave session on the fourth day. Reading her detailed descriptions of the session highlights gave me a sense that I would probably get just as much out of it if I were there. For that alone it's certainly worth the money buying the book!

I don't know if there's someone advised her, she seemed to know exactly the right experts to talk to. One, in particular, is Al Osborne, one of the premier nonlinear theoretical physicist from Texas originally but now resided in Italy. I don't know if Al was prepared to talk to this journalist, but clearly in trying to make her understand he had this down-to-earth metaphorical explanation of freaque waves:
"It's like this rogue wave is hiding," he said, using his hands to demonstrate. "He's got his arms out, covering a lot of other waves. And when he gets ready, he sweeps in all their energy, stealing from them and pulling it up under this one big single peak."
I think this could be destined to be the classical theoretical explanation of all times. of course that's not the whole answer. It all depends on "when he gets ready"! We don't know when? We don't know where? We don't know how? And we don't know why? Especially out in the open ocean. But Osborne's refreshing explanation certainly satisfies any non-specialist's curiosity!

At the end of this chapter the author noted that on the first day of this conference, on November 11, 2007, there was a bad storm near Russia's Black Sea that sunk four carriers and split an oil tanker into two. Those cases got nothing to do with freaque wave or the workshop. I did blogged about the storm here.


P.S.

While the November 2007 North Shore Workshop had a fair collection of Freaque wave scientists and aficionados there, they represent only a small subset at best. There are plenty of experts from Russia (other than Zakharov), Norway, France, Germany, and U.K. who were not there. So dealing with scientific theory of freaque waves, the author's speedy education is clearly far from complete.

Thursday, September 16, 2010

The book "The Wave" .

After being quiet, sort of in an uneasy doldrums, in the wide ocean world out there for some time now, while it is still quiet yet out there, there is suddenly some media agitation about waves has been occurring in recent days. I am referring to the just now publication of a Doubleday book entitled "The Wave: In Pursuit of the Rogues, Freaks, and Giants of the Ocean" authored by Susan Casey. Here's the Youtube advertisement of the book:



I have not get the book yet. I intend to of course. It is certainly of interest to see this seemingly popular book by an established author who is NOT a scientist. This entry today is just a preliminary introduction. I will blog about and from the contents of this book in the coming days.