Tag Archives: landsat

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

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Clewiston.gif

 

(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)

Looking Out for Ourselves, Landsat Satellite Photos of Lake O’s Algae Blooms, SLR/IRL

 

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Landsat satellite photo of Lake Okeechobee 7-26-16.

I believe in not being dependent on the federal or state government, but what recently happened along the St Lucie River is ridiculous…

In the months following the June 29th, 2016 “State of Emergency”and toxic algae bloom invasion of the St Lucie River, one thing is clear. Our federal and state governments did not look out for Martin County’s best interests, instead knowlingly discharging toxic algae from the lake into the communities along the St Lucie River— with out so much as “public-peep”— until real tragedy and helath risks had struck. Then suddenly, it was like: “Oh my, where did all this algae come from?”

Well, it happened knowingly because the state and federal government (ACOE/SFWMD/ DEP/ Florida Dept of Health) knew Lake Okeechobee was not “popping” here and there with a few algae blooms as is often the case, but rather was”covered in the stuff.”

By July 2nd commonly distributed government satellite images, like the one above, were showing over 200 square miles of algae bloom that obviously had to grow over time to attain such prominance.

Anyway…the least “they” could have done was to have given the public fair warning to be careful and ready as is standard operating proceedure during a drought when wild-fire conditions are present.

But they did not.

Instead, the Department of Environmental Protection quietly took its tests, reporting to the District and the Army Corp– at their leisure— the few results they attained…They should have warned the county government of more than a bloom here and there. They should have told everyone that a dangerous situation was getting ready to occur. But they did not. Maybe they thought it wouldn’t  happen? I doubt it. This is true negligence considering the first duty of government is health, saftey and welfare of the people it levies taxes from…

Thus today, I am sharing a brief exchange between my very technically-savvy brother, attorney, Todd Thurlow, and me, from earlier this week. Todd’s shared images will help us look out for ourselves. Thankfully, the recent Landsat satellite images of Lake Okeechobee, for now, look much clearer of algae than just a few months ago.

The link below the exchange will allow you see the satellite images of the lake over time, dates are also present:

Jacqui

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7-27-16 Email exchange:

Jacqui: Do the satellite images show any more algae in the lake? J

Todd: I might see some in the southwest quadrant but not definitive. As mentioned before, unfortunately, Landsat 7 has a broken instrument that causes the black lines on the image.

Todd

7-26-16:
(http://www.thurlowpa.com/LakeOImagery/Landsat%2030m%20Resolution/index.html#LE70150412016208EDC01%2520-%2520Crop.jpg)

Full Resolution:
(http://www.thurlowpa.com/LakeOImagery/Landsat%2030m%20Resolution/LE70150412016208EDC01%20-%20Crop.jpg)