[Coral-List] Potential for Bleaching Growing around Florida, Cuba, and Bahamas
Mark Eakin
Mark.Eakin at noaa.gov
Mon Jul 16 12:01:14 EDT 2007
Since last Wednesday, 11 July, our Sombrero Reef virtual station has
been in Bleaching Warning status (http://coralreefwatch.noaa.gov/
satellite/current/sst_series_sombrero_cur.html). That pixel is
actually on the Bay side of the Keys because of the influence that
warm, often hypersaline, waters have on the reef tract in that area.
The rise in temperatures agrees with on site observations from
scientists including Libby Johns who reported high water temperatures
and salinities near Looe Key. This agrees with NOAA's Integrated
Coral Observing Network (ICON) data from Sombrero Reef and other
Florida Keys sites. Current temperatures at the Sombrero Reef
SEAKEYS station (SMKF1) are the highest since 2005. The Florida Bay
region and eastern Gulf of Mexico are currently experiencing doldrum
conditions that may be contributing to the warm, hypersaline waters.
Looking at the experimental Florida Reef Tract page or our Google
Earth data, it is clear that all of the waters around the Florida
reef areas are at least under a Bleaching Watch. The Sombrero Reef
virtual station (Florida Reef pixel #2) is the only pixel that has
reached Bleaching Warning in the area.
Our virtual station in Lee Stocking Island, Bahamas has been showing
positive Coral Bleaching HotSpot values (Watch or Warning status)
since late June.
Please note that we have not yet issued a bleaching alert, as the
Degree Heating Weeks value for Sombrero Reef is only at 1.3. An
alert will be issued if the temperature reaches 4.0.
We would appreciate any information on bleaching from the area.
Coral Reef Watch Resources:
Experimental Florida Reef Tract page (http://coralreefwatch.noaa.gov/
satellite/current_exp/timeseries_floridakeys.html)
Google Earth data (http://coralreefwatch.noaa.gov/satellite/ge/
index.html)
Experimental Doldrums Product: http://coralreefwatch.noaa.gov/
satellite/doldrums_v2/
Our 24 index sites around the globe can be found at:
http://www.osdpd.noaa.gov/PSB/EPS/CB_indices/
coral_bleaching_indices.html
Current HotSpot and Degree Heating Week charts, HDF data, and
GoogleEarth products can be found at:
http://coralreefwatch.noaa.gov/satellite/index.html
NOAA's Integrated Coral Observing Network (ICON) for the Caribbean
http://ecoforecast.coral.noaa.gov/index/0//caribbean-home
Please reporting any bleaching events (or non-events) at
http://www.reefbase.org/input/bleachingreport/index.asp
Cheers,
Mark
------------------------------------------------------------------------
------------------------
C. Mark Eakin, Ph.D.
Coordinator, NOAA Coral Reef Watch
National Oceanic and Atmospheric Administration
Center for Satellite Applications and Research
Satellite Oceanography & Climate Division
e-mail: mark.eakin at noaa.gov
url: coralreefwatch.noaa.gov
E/RA31, SSMC1, Room 5308
1335 East West Highway
Silver Spring, MD 20910-3226
301-713-2857 x109 Fax: 301-713-3136
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