My brother, Todd, has programmed a way to present a running comparative of satellite imagery in an easy way for all to understand. These images are a revolutionary tool for the St Lucie River movement and for the state of Florida. They help us to understand, and put us in a better position to ask for change as we are up to date and we know how things work. And although experimental, the concept is on track. Make this link a permanent part of your Lake Okeechobee tool kit. Read here:
If you’re like me, you might wonder about the various satellite images in the news and on social media showing the cyanobacteria, also known as blue-green algae, in Lake Okeechobee. What’s the connection between the colorized and the not? How do the scientists determine the colorized image? Where do they come from?
In this post, I share a link to my brother, Todd Thurlow’s latest creation, “NCCOS HAB Images.” This exciting site juxtaposes an experimental product of the National Centers for Coastal Science, NCCOS, being used to track Harmful Algae Blooms, HABs, in Lake Okeechobee, to NOAA True Color, or enhanced traditional satellite images.
The NCCOS images are referenced by The South Florida Water Management District, however, experimental. Experimental or not they are cool, tell us a lot, and they are interesting!
Before relying on a CICyano (Chlorophyll Cyanobacteria Index) image, scientists must first look at the “true color” version to determine if clouds or sunlight reflections have corrupted the data. Todd has made it easy for us to compare the NCCOS “Chlorophyll Cyanobacteria Index” pictures to the corresponding “True Color” picture. He processed hundreds of images, putting them side by side. Generally, if there are clouds on the right image, then the left image may not be so reliable. But if there are no clouds on the right, then the left image is a good indicator of algae.
This site is an awesome visual tool we can now reference as we continue to learn about HABs in Lake Okeechobee. Technology is a powerful path for connecting to a “better water future.”
Documenting the discharges, is critical whether by air, on the ground, or from outer space.
The two videos above were taken by me over S-308 at Port Mayaca, the opening from Lake Okeechobee to the St Lucie River, and over S-80 at St Lucie Locks and Dam on Friday, July 20th, 2018. The satellite images below, my brother Todd Thurlow provided, were taken the same day.
It is clear that the blue-green algae/cyanobacteria, covering, at its height, 90% of Lake Okeechobee, has run its course and bloomed. Now, as the “flower falls,” we see what’s left.
As seen in the aerials, and what the satellite images cannot portray, is that the algae is still there just lessened. Flying out over the lake a light green algae film remains over the water, a pastel shadow of its once flourescent self.
The seven aerials at the end of this blog post were taken by my husband, Ed, this afternoon, July 22, 2018 around 4pm. The tremendous green shock is gone, but squiggly lines of nutrient bubbles remain, and blue-green algae visibly lines the eastern shoreline to be sucked into the gates…
Will another gigantic bloom arise? Another flower to replace the dropped blooms of yesterday? Only time shall tell…
One thing is certain. Nutrient pollution (Phosphorus and Nitrogen) is destroying Florida’s waters, and unless non-point pollution, especially fertilizer runoff from the agriculture community, is addressed, faster than Florida’s Basin Management Action Plan requires- pushed out 30 or more years, we are will be living with reoccurring blooms indefinitely.
Timely quote for thought by the late Mr Nathaniel Reed 1933-2018
“…The fact that the Department of Environmental Protection and the Everglades Foundation have at last identified every polluter in the vast Okeechobee headwaters is an astonishing feat. The sheer number of polluters is mind-boggling.
The failure to enforce the possibly unenforceable standard (best management practices) shines through the research as testament to the carelessness of our state governmental agencies about enforcing strict water quality standards within the watershed.
There is not a lake, river nor estuary in Florida that is not adversely impacted by agricultural pollution.
As one of the authors of the 1973 Clean Water Act, I attempted late in the process to include agricultural pollution in the bill, but the major congressional supporters of the pending bill felt that by adding controls on agricultural pollution the bill would fail.
Now, 54 years later, fertilizer and dairy wastes are the main contributors to the pollution of the waters of our nation. Algal blooms are all too common even on the Great Lakes.”
In my last post, I shared my brother Todd Thurlow’s “Lake Okeechobee Satellite Images 1972-2013.” Today, I am sharing his Lake Okeechobee Satellite Images 1982-2018.
In 1972, I was 8 years old…
In 1982, I was 18 years old…
A lot changes in ten years, and an extra-lot changes in the 100 years we have not taken good care of our state’s largest lake; this is now affecting millions of people and the remaining wildlife we have left.
Todd told me he did not “create by hand,” as I alluded to in my last post, but rather he used a USGS website tool to do it, and then converted, and loaded to YouTube, embed, etc.
In the last video the emphasis was on an a visible algae bloom in 1979, in this “video” the dates of algae blooms are not marked, but you can see clearly blooms towards the end as we reach 2018.
Unless something drastic occurs structurally, socially, and politically, I am sorry to say that we are doomed to have more and more algae blooms in the future.
~“The consequences of ignoring ecological planning and environmental protection could be economically devastating in a way not commonly foreseen.” Environments of South Florida Present and Past, by Patrick J. Gleason 1974.
I could never do what I do without the people who help me. My husband, his pilot friends, the everyday people sending me “toxic-algae” imagery, the River Warriors community, and when it comes to striking the bull’s-eye, my science-studied-lawyer, little brother, Todd.
Just hours ago, Todd forwarded these images from satellites, Landsat 7, and Sentinel 2, clearly showing a large algae bloom photographed yesterday in Lake Okeechobee. 102 square-miles of it!
So Florida state agencies, and others…
…Do not tell me the algae comes from our river. It does not. We have been through this before….
The algae, that can become toxic, and maybe already is, starts in, and comes from the crock-pot of Lake Okeechobee. The Army Corp of Engineers should stop discharging right now. Right when the Colonel sees these images. And these images have been seen, because NASA makes these images available to the Corp.
When a satellite image like this is made public, it cannot be ignored.
The ACOE should close the gates of S-308 until DEP has tested all edges of this large bloom. And work for never discharging when there is an algae bloom in Lake Okeechobee.
Since the ACOE and SFWMD have yet to develop public satellite imagery of algal bloom development in Lake Okeechobee with NOAA during rainy season, I go to my brother Todd. Ever since we were kids, he’s loved science and technology.
I have been bugging him lately for a satellite image…
6-4-18, Jacqui : Todd do you know when last high-resolution satellite photograph was taken of lake o and how to access this photo? Thank you.
6-4-18 Todd: Should have been a Landsat 8 image on 5/21 but it is not available for some reason. The Landsat 7 image from 5/29 is so bad because of the broken instrument that is not usable. Preview here, I would have to “order” high res but not worth it.
6-5-18 Jacqui : Thanks Todd
6-6-18, Todd: Hey Jac, the European sentinel-2 satellite took a good image yesterday. I will post it to my page tonight and add sentinel to the Landsat folder. It doesn’t show anything though. The sentinel-3 satellite took an interesting chlorophyll wavelength shot showing returns in the southern lake. However, it doesn’t seem terribly accurate because the returns over time have been all over the place. I will have to study more up on those types of images.
6-6-18, Jacqui: Well thanks Todd, thankfully that must mean at least for these images the algae is not so much that it’s visible to the satellite in space but we know some is there from 1st hand. This is good news for now. Can we keep getting images? Why ACOE and SFWMD don’t have and report on regularly is ridiculous.
6-6-18, Todd: …..
6-7-18 Jacqui: Hey Todd, the Terra image that is in today do you think that is algae or a cloud east of FPL Pond? Know hard to tell w/lower res.
Todd and I will keep you posted.
For more, go to Todd’s website, look for Firm Favorites; St Lucie River Discharges; Latest Lake O Satellite Imagery:http://www.thurlowpa.com
We are up to page 10 in our history lesson and today’s photos are some of my favorite. The first is an aerial of the St Lucie Inlet entitled “Stuart on the St Lucie River.” Since its earliest day’s, Stuart has always been defined by its proximity to the river. Below the aerial it boast: “World Famous For its Fishing, Provides an Ocean Entrance for Small Craft.” And by today’s standards, a rather comical or un-comical plug can’t be missed: “Where the Waters of Lake Okeechobee Meet the Atlantic.”
It is also fascinating to note the shape of the south side of the St Lucie Inlet as today it has shifted and filled in. I am sharing my brother’s Time Capsule Flight used in former posts as it is so interesting and shows the various inlets of this area and land shapes as documented on various historical maps. Although today, we try to make barrier islands, beaches, and inlets permanent, by watching my brother’s video the message is clear: “the only constant is change.”