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#1373635 - 22/04/2016 08:25 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3108
Loc: Gordonvale
Nice link Locke. The combination of poor journalism and bias makes it very difficult to interpret reality these days. When I went to uni, we were taught to interpret information and data without bias. Of course you need to try to come to a conclusion but leave your feelings out of it.

Once the effects of this event have been tallied, it will be interesting to get the final verdict on say the net 5 year loss/gain of reef area.
_________________________
MTD: 60.6mm
2016-2017 wet season: 1187.6mm
YTD: 1071.2mm

Opinion is not fact.

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#1373662 - 22/04/2016 11:37 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3108
Loc: Gordonvale
_________________________
MTD: 60.6mm
2016-2017 wet season: 1187.6mm
YTD: 1071.2mm

Opinion is not fact.

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#1377275 - 31/05/2016 20:01 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3108
Loc: Gordonvale
_________________________
MTD: 60.6mm
2016-2017 wet season: 1187.6mm
YTD: 1071.2mm

Opinion is not fact.

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#1377308 - 01/06/2016 04:37 Re: Coral Bleaching [Re: Ronfishes]
dormant Offline
Weather Freak

Registered: 30/01/2011
Posts: 532
Loc: near ferry, FNQ
And if the tourist industry were not affected how much angst would there be? How much study of coral beds are there where no one visits and where no human activity occurs on land to find out if this is just a natural cycle?

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#1377312 - 01/06/2016 07:30 Re: Coral Bleaching [Re: Ronfishes]
Locke Offline
Weatherzone Addict

Registered: 27/12/2007
Posts: 4226
Loc: Brisbane
Hard to put a context on this when so much of this is attributable to a strong El Nino which occurs roughly once every 15-20 years.

The past 3 strong El Nino's occurred in 82/83, 97/98 and the current one. Each of these has been quite different in the distribution of the warmest SST anomalies.

82/83 was strongest in the East with the highest anomalies in the Nino 1+2 region, whilst the 97/98 had stronger anomalies in the Nino 3 region and finally the current event has been centred further West again recording highest values in the Nino 3.4 and 4 regions. (The Nino 1+2 readings for the current event don't come anywhere near the readings recorded in the past 2 strong El Nino's)

This surely must play some role in the distribution of above average anomalies on the Great Barrier Reef.

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#1378092 - 04/06/2016 16:55 Re: Coral Bleaching [Re: Ronfishes]
Seira Offline
Meteorological Motor Mouth

Registered: 27/08/2003
Posts: 6741
Loc: Adelaide Hills.
"the overall mortality rate is 22 percent -- and about 85% of the die-off has occurred in the far north between the tip of Cape York and just north of Lizard Island, 250 km north of Cairns. 75% of the reef will come out in a few months time as recovered."

--Dr. Russell Reichelt, Great Barrier Reef Marine Park Authority.
--Data from Australian Institute of Marine Science Survey.
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Only the most naive gamblers bet against physics, and only the most irresponsible bet with their grandchildren’s resources.

-- William H. Calvin.

[A quote about abrupt weather pattern changes occurring within decades.]

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#1378549 - 06/06/2016 13:22 Re: Coral Bleaching [Re: Ronfishes]
Locke Offline
Weatherzone Addict

Registered: 27/12/2007
Posts: 4226
Loc: Brisbane
Dr Reichhelt has an excellent video explaining the nature and extent of this year's event. Very well balanced and without the hysteria seen in other quarters.

One of my biggest concerns from this event is how one of my favorite dive sites on the reef (Acropolis) has faired. Some of the best plate coral formations you'd ever want to see but certainly on the edge of the danger zone and a lot of the coral is very shallow in depth.

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#1394973 - 29/11/2016 11:14 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3108
Loc: Gordonvale
Update:

http://mobile.abc.net.au/news/2016-11-29...996?pfmredir=sm

Did you get out for a dive Locke?
_________________________
MTD: 60.6mm
2016-2017 wet season: 1187.6mm
YTD: 1071.2mm

Opinion is not fact.

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#1409267 - 23/02/2017 19:19 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3108
Loc: Gordonvale
_________________________
MTD: 60.6mm
2016-2017 wet season: 1187.6mm
YTD: 1071.2mm

Opinion is not fact.

Top
#1411587 - 10/03/2017 11:17 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3108
Loc: Gordonvale
_________________________
MTD: 60.6mm
2016-2017 wet season: 1187.6mm
YTD: 1071.2mm

Opinion is not fact.

Top
#1411605 - 10/03/2017 15:48 Re: Coral Bleaching [Re: Ronfishes]
Weary Offline
Weather Freak

Registered: 07/03/2014
Posts: 858
Loc: Edge Hill, Cairns
http://downloads.gbrmpa.gov.au/files/3i95xze6ys

Video and photos of bleaching taken yesterday
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#1411613 - 10/03/2017 17:54 Re: Coral Bleaching [Re: Ronfishes]
Brett Guy Offline
Weatherzone Addict

Registered: 05/10/2010
Posts: 4822
Loc: Bently Park, Cairns
No photos to show the difference but there is definitely a bit more bleaching at GI this year than last. We must take into account though that last years bleached coral here recovered so there is no cumulative effect and we will just have to wait and see how it recovers this time around.really need a cyclone or two to take some of the heat out of the water though.

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#1411616 - 10/03/2017 18:48 Re: Coral Bleaching [Re: Ronfishes]
Snowy Hibbo Offline
Weather Freak

Registered: 30/12/2016
Posts: 155
Loc: Matlock, Victoria.


Coral bleaching would obviously be occurring in current observations. The POAMA forecast is for cooling over the next month or so. But skill is medium at best beyond a month at this time of year.

The public version of this dataset is here: http://www.bom.gov.au/oceanography/oceantemp/GBR_SST.shtml


Edited by Snowy Hibbo (10/03/2017 18:50)
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#1411619 - 10/03/2017 18:57 Re: Coral Bleaching [Re: Snowy Hibbo]
Weary Offline
Weather Freak

Registered: 07/03/2014
Posts: 858
Loc: Edge Hill, Cairns
Originally Posted By: Snowy Hibbo


Coral bleaching would obviously be occurring in current observations. The POAMA forecast is for cooling over the next month or so. But skill is medium at best beyond a month at this time of year.

The public version of this dataset is here: http://www.bom.gov.au/oceanography/oceantemp/GBR_SST.shtml


No but the unpublic version has a big blob of hot water until the end of march
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Love the sound of rain on a tin roof

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#1411624 - 10/03/2017 19:24 Re: Coral Bleaching [Re: Weary]
Snowy Hibbo Offline
Weather Freak

Registered: 30/12/2016
Posts: 155
Loc: Matlock, Victoria.
Originally Posted By: Weary
Originally Posted By: Snowy Hibbo


Coral bleaching would obviously be occurring in current observations. The POAMA forecast is for cooling over the next month or so. But skill is medium at best beyond a month at this time of year.

The public version of this dataset is here: http://www.bom.gov.au/oceanography/oceantemp/GBR_SST.shtml


No but the unpublic version has a big blob of hot water until the end of march

Correct, it will take several months to cool if POAMA has its way.
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Long term forecaster
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#1412669 - 16/03/2017 06:28 Re: Coral Bleaching [Re: Ronfishes]
Ronfishes Offline
Weatherzone Addict

Registered: 25/02/2013
Posts: 3108
Loc: Gordonvale
Poorly written article but has some relevance, ie 'last years news'

http://www.theage.com.au/comment/i-saw-t...308-guu0r0.html
_________________________
MTD: 60.6mm
2016-2017 wet season: 1187.6mm
YTD: 1071.2mm

Opinion is not fact.

Top
#1412803 - 16/03/2017 18:50 Re: Coral Bleaching [Re: Ronfishes]
Hanrahan Offline
Cloud Gazer

Registered: 11/03/2017
Posts: 27
Loc: Townsville
I'm late to this discussion but for mine, the biggest threat to the GBR is still the crown of thorns starfish.

Bear with me, I'm an old phart who first travelled to the reef [probably Keeper Reef] on the MV Paluma as a boy in the '50s where we viewed it through a glass bottomed boat. As a teenager I snorkelled on it. It was magnificent.

Many years later, after the COT devastation, I swam on the Ribbon Reefs and it was the saddest thing I ever saw. A more recent trip off Townsville showed fair recovery but it was far from it's best.

Worrying about warming will achieve nothing because we can't control it. It is possible we can control the COT so lets renew the research on that which seems to have languished.
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We'll all be rooned, said Hanrahan

Before the year is out.

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#1413032 - 17/03/2017 21:07 Re: Coral Bleaching [Re: Ronfishes]
BIG T Offline
Weather Freak

Registered: 24/01/2012
Posts: 845
Loc: Albany Creek , QLD
I will be very interested to see how the bleaching goes if we can get a cpl of big monsoon seasons back to back. Just a dumbass personal theory I have.

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#1413254 - 18/03/2017 22:42 Re: Coral Bleaching [Re: Ronfishes]
Locke Offline
Weatherzone Addict

Registered: 27/12/2007
Posts: 4226
Loc: Brisbane
Just returned from a week of diving off Cairns. Saw some evidence of bleaching still but certainly not extensive and no worse than last year.
Spent most of the week on Milne and Flynn Reefs and from what I saw, I'd estimate 5-10% severe bleaching. Managed to get some beautiful photos though of coral that was not visibly bleached.
Still some very warm water around though.

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