Settings unchanged

Just before 0700 and Dee Why still as it was.

Hello Friends,

Just as the early-rising Rob reports, the waves are just as they were yesterday morning. I saw the Goat yesterday evening and he hasn’t changed his view about our prospects for this weekend and the week ahead. In a word, his call is for weak.

This morning’s microness at Dee Why is exactly what you’d expect to see given the data coming from the MHL buoy. It’s showing a very slight improvement over yesterday however, so I’m hoping that will mean a little windswell wave this afternoon after the NE’r blows for awhile. Right now it’s a touch over a metre out at sea with an average period of 7 seconds. The Bureau is still saying that it expects the wind to be up into the 20-30kt range late this afternoon. That should bump things up a little and with luck there could be the odd thing in the chest high range at the most exposed spots.

Have yourself a top old day!

31 Jan 2009: ABC 702 surf report by Don

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Acidic oceans are coming

On 30 January more than 150 leading marine scientists from 26 countries warned that without immediate action by the world’s politicians, catastrophic damage to the world’s marine ecosystems is highly likely. This is not theoretical, ocean acidification is already detectable – and is accelerating.

“The chemistry is so fundamental and changes so rapid and severe that impacts on organisms appear unavoidable.” said James Orr of the Marine Environment Laboratories (MEL-IAEA) and chairman of the symposium. “The questions are now how bad will it be and how soon will it happen. The report from the symposium summarizes the state of the science and priorities for future research, while the Monaco Declaration implores political leaders to launch urgent actions to limit the source of the problem.” 

According to The Ocean Acidification Network (which includes UNESCO, intergovernmental Oceanographic Commission, Scientifc Committee on Oceanic Research and others), increased acidification will not only have dire effects on the “calcareous phytoplankton, mussels, snails, sea urchins and other marine organisms [that] use calcium (Ca) and carbonate (CO3) in seawater to construct their calcium carbonate (CaCO3) shells or skeletons”, it will also severely affect coral reefs.

It is estimated that by 2050, we may be losing more reef area to erosion than can be rebuilt through new calcification. There is minimal understanding of how the combined effects of warming seas (which cause coral bleaching) and reduced calcification due to acidification will interact.

reference

Yaaaaaaaawn.

Nothing, zippo, nada, tipota, flatski.

C C Ditto

Fine, dewy and warm on the Central Coast this Saturday morning.  The swell is smooth, weak and very small at 1 – 2 feet from the northeast.  There is a light northeast breeze forecast to strengthen later with another warm day.  Low tide 0555 and high tide around 1210.  Local barometer 1013 hpa, 92% humidity, 18 degrees C.  Have a good weekend.

Dee Why: Just the usual dribble

Same as it ever was–just the usual tiny, knee high dribble this morning. Not even worth a picture.  I’m off to the South Coast–perhaps there’s something better down there. Have a great weekend.  Cheers, Rob

Sat. early riser call

Hello Early Risers,

Looks as though paddling out at first light will mean light NE breezes to begin with. Yesterday at dusk, the wind was out of the same direction at up to 20 kts, but it really wasn’t pushing up an awful lot. There were very tiny little things at Curly and Dee Why, but you needed to be extra keen. Same deal this morning I’d say.

As the day goes along, the wind should push up to around 15-20 kts in the middle part of the day. By dusk it could be 20-30kts. The little NE windswell of yesterday will likely be in the knee to waist high range at exposed spots, so it should be a great day for beginners but not too challenging for intermediate and advanced riders.

I’ll be along a little before 0730 with an update and at around 0730 you’ll hear me talking to Simon Marnie on ABC 702 about the surf prospects for the rest of the day and the week ahead.