[Coral-List] GUAM Potential Bleaching Event - "Heads up"
Robert van Woesik
rvw at fit.edu
Wed Aug 27 12:30:03 EDT 2003
One of my PhD students, Peter Houk, is on one of the NOAA research
vessels surveying the Northern Mariana Islands (north of Guam). Here is
a direct quote from his email message this morning (August 27, 2003):
...At present, there is a major bleaching event ... over 50% of the
coral colonies in my survey are bleached or fluorescent...
Rob van Woesik
From: coral-list-bounces at coral.aoml.noaa.gov
[mailto:coral-list-bounces at coral.aoml.noaa.gov] On Behalf Of Gang Liu
Sent: Tuesday, August 26, 2003 12:43 PM
To: Coral List
Subject: [Coral-List] GUAM Potential Bleaching Event - "Heads up"
Anomalously high sea surface temperatures (SSTs) have been developing
over a large area of the Northwest Pacific Ocean since early July.
The SST at Guam has been creeping up above the summertime maximum
monthly mean SST since mid-July and now is approaching the bleaching
Our Degree Heating Week chart shows that Guam is just outside the area
with accumulated DHW. There is a potential for bleaching at Guam if SST
continues to rise in the area.
Any feedback you can provide is useful: both bleaching or non-bleaching
observations, are welcome.
We, NOAA's Coral Reef Watch Project, are developing an automatated coral
bleaching email warning system. The warning is derived based on our
satellite monitoring using satellite HotSpot and Degree Heating Weeks
algorithms. The email will be sent out to region-relevant recipients for
notification at selected reef sites. The list of region-relevant
recipients and list of selected reef sites are under development. A test
message of bleaching watch for Guam is shown below. Please make
comments/suggestions on this automatated email alert, both the content
and mode of
broadcasting how we might send out these warnings.
** BLEACHING WATCH for Guam
Current thermal stress level at this site: 0 < HotSpot < 1
Reef site name: Guam
-- Pixel latitude: 13.5000
-- Pixel longitude: 146.000
Current satellite observations: 8/19/2003 - 8/23/2003
-- Sea surface temperature : 30.0000 Deg C
-- Coral bleaching HotSpot : 0.700000 Deg C
-- Bleaching Degree Heating Weeks : 0.00000 Deg C-week
-- Maximum Monthly Mean SST at site : 29.3000 Deg C
For more information please visit Coral Reef Watch's Website:
Please send the feebback to Alan Strong (Alan.E.Strong at noaa.gov) and/or
Gang Liu (Gang.Liu at noaa.gov)
Alan E Strong
Coral Reef Watch Project
Gang Liu, Ph.D.
Senior Research Scientist/Oceanographer
(Decision Systems Technologies, Inc.)
NOAA Coral Reef Watch Program
1335 East-West Highway
Silver Spring, MD 20910-3226
Tel: 301-713-9386 ext 131
Email: Gang.Liu at noaa.gov
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