Tag Archives: 1977 study Landsat NASA and SFWMD

Do Lake Okeechobee’s Algae Blooms Grow on “Rocky Reef” Above Clewiston?

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(https://www.youtube.com/watch?v=XRP6eEDKW_Y&feature=youtu.be)
(Movie showing a close-up of the Rocky Reef overlaid with today’s image and a NOAA Chart-By Todd Thurlow)

 

As we know, my brother Todd has been keeping his eye on the Landsat satellite images as they provide tremendous insight into the condition of Lake Okeechobee and potential algae blooms that affect the health, safely and welfare of those living around the St Lucie River/Indian River Lagoon. Todd notes that in studying the Landsat images: “Perhaps the algae grows on Rocky Reef? The area just north of this location is were some of the earlier blooms originated.”

Hmmm? Could the Rocky Reef be an area where the water cannot flow in the lake as easily due to its nature? Could it be possible that nutrient rich back pumped waters from the sugar fields fester in this area feeding a lake wide bloom? Worth a thought as we try to fix our problems…

The toxic algae blooms –people are still talking about them….

You may have noticed recently in various publications and “Letters to the Editor” across the state that some are calmly claiming that “algae blooms have been occurring in Florida since the beginning of time…” This may be true, however, this summer’s 240 square mile algae bloom in Lake Okeechobee that led to the outbreak in the St Lucie River was unprecedented. Comparing the situation to prior algae bloom outbreaks of 2013, 2014, or any other is like comparing a dog to a wolf. The same but very different.

Another interesting thing Todd stumbled upon while researching the “Rocky Reef” located basically above Clewiston was a 1977 joint NASA/SFWMD report on, of all things, using Landsat radiance data to study the turbidity and chlorophyll concentrations in Lake Okeechobee.

The report is entitled: LANDSAT INVESTIGATION OF WATER QUALITY IN LAKE OKEECHOBEE, PRESENTED AT THE 1977 ASP-ACSM CONVENTION IN WASHINGTON DC FEB 27-March 5, 1977. (http://www.sfwmd.gov/portal/page/portal/pg_grp_tech_pubs/portlet_tech_pubs/dre-71.pdf)

Since obviously the South Florida Water Management District has been using the Landsat information since 1977, and Martin County has been paying taxes to the District since around the same time, I think it would have been polite if the District had let us know when Lake Okeechobee’s then poisonous waters were overflowing with algae and headed this way. Don’t you as well?

You can learn about Todd’s discoveries about the Rocky Reef below.

Jacqui

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In correspondence to Mark Perry,  Todd Thurlow provided the following: (http://www.thurlowpa.com)

Here is September 4th’s Landsat 8 image.

(http://www.thurlowpa.com/LakeOImagery/Landsat%2030m%20Resolution/index.html#LC80150412016248LGN00%2520-%2520crop.jpg)

That 16.8 square mile area in the southwest looks like algae but part of it is apparently the “Rock Reef”.
(http://www.thurlowpa.com/LakeOImagery/Measurments/index.html#LakeOAlgaeBloom%2528possible%2529-2016-09-04_close.jpg)

Chart View:
(http://www.thurlowpa.com/LakeOImagery/Measurments/index.html#LakeOAlgaeBloom%2528possible%2529-2016-09-04_RockReef.jpg)

Rocky Reef: There is an old pump station out there that is visible in Google Earth. Here is a picture of it:
(http://www.panoramio.com/photo_explorer#view=photo&position=78&with_photo_id=43780903&order=date_desc&user=4322147)