Turnover

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Most things in, on and under water can be seen. But probably the biggest thing that happens in a lake of any size goes unnoticed by all but a select few people. Interested? Read on, my friend.

 

I really love looking out my office window and watching the lake.  Brilliant sunshine makes it sparkle.  Fall cloud formations make me reach for my cell phone camera, and incoming sweeping rain and thunderstorms are a treat every time. I’m not a big fisherman (those of you who know me truly understand why!), so I don’t follow the different fishing seasons, but one thing I learned recently is that my great, beautiful Lake Erie actually turns over – specifically in the spring and fall. A buddy of mine said I should think of turnover much like a dog learning to roll over: As he pushes himself to one side, his underbelly begins to show.  It made me think of my brothers on the couch trying to roll over after a massive Kowalski thanksgiving dinner).  Wanting to learn more, I jumped online and found some really cool info.  For my fishing fanatics out there, I’d love to hear how you adjust to the changing weather and water temperatures (email me at skowalski@khtheat.com).  Special thanks to cleanlakesalliance.org, lakes.grace.edu and outdoornews.com for the info.

Simple Video

Lake masses consist of three layers – epiimnion – the upper layer of water in a thermally stratified lake consists of the warmest water and has a fairly uniform (constant) temperature; the hypolimnion – the cold bottom waters, and the metalimnion (or thermocline) layer – a stratum of rapidly changing temperature water.

Fall and spring turnover are natural phenomenon that cause the top layer of the lake to trade places with the bottom layer. This turnover is critical for lake health – like folding chocolate chips into cookie dough (yep, I eat the dough when Jackie isn’t looking!!).  In the fall, this phenomenon happens when the temperature in the air drops. The epilimnion then cools to a temperature that balances with the density of the hypolimnion, allowing them to “intermingle.” (The opposite occurs in the spring: the air temperature rises, warming the surface water while the bottom grows cooler).

Water is unique in the way it changes density at different temperatures. Unlike almost all other liquids, water is most dense at 39 degrees Fahrenheit (4 degrees Celsius) and is lighter at both warmer and colder temperatures. In other words, when water reaches the critical temperature of 39 degrees Fahrenheit, further cooling causes the water molecules to become less dense and rise to the surface. This unusual characteristic allows water to form distinct layers within an otherwise uniform liquid. This phenomenon explains why ice forms at the surface and does not sink.

Warmer and less dense water floats on the top of cooler, denser water at the bottom. This allows the lake to mix when temperatures equalize throughout the water column, as water from the bottom of the lake rises to the top, and water from the top of the lake sinks to the bottom. The process allows for oxygen to be replenished and nutrients to be distributed throughout the lake.

The two layers could not intermingle without the wind. As the Fall winds blow and winter approaches, a constant breeze begins to move over the surface of the lake. The wind pushes the surface water from one shore to the other, and as this happens, the hypolimnion moves upward to replace the water that is moving across to the other shore. Once it reaches the other shore it gets pushed downward to replace the hypolimnion that moved up to the other side of the lake.  The lake “rolls over” in this way in an ongoing cycle until it freezes over.

In both the fall and the spring, turnover affects three major aspects of the lake environment: oxygen, algae, and phosphorus.

The hypolimnion routinely runs low or out of dissolved oxygen, as decomposition, such as bacteria breaking down organic matter.  The turnover breaks down the temperature boundary and moves oxygen-rich surface water to the bottom and oxygen-starved bottom water to the top. Moving dissolved oxygen to the hypolimnion is not only crucial to the lake, but also to the fish who live there.

Fish and most other aquatic critters rely on dissolved oxygen to survive. If too much muck builds up and dissolved oxygen is not replenished, fish will be forced to move toward the surface.

Turnover also helps our lakes clean up harmful bacteria and algae. It carries dead algae down into the depths of the lake where there is less sunlight, helping to prevent algae growth where it is eaten or decomposed at the lake bottom.

Turnover also helps clean up excess phosphorus. As turnover forces iron (which naturally exists in our lakes) toward the hypolimnion, the iron interacts with phosphorus. As it falls to the bottom, the compound is deteriorated by oxygen and anaerobic bacteria. This process is similar to a Ferris wheel as the phosphorus and iron “ride” to the epilimnion and back down to the hypolimnion. Algae blooms are fueled by phosphorus, so the mixing cycle can reduce the conditions for a bloom.

Lake Erie’s western basis turns over frequently, but the larger lake takes more time to cycle.  Anglers talk of seeing tiny bubbles on the surface, and also a gray color to the water.

For any angler who ventures out on the water during the cooler temps it can be a make or break time. Finding fish right after turnover can be challenging.  Bass, pike, perch, bluegills, walleyes… all may need time to adjust to turnover, but usually the reason fisherman are not catching fish post-turnover is because they’re fishing the same spots as they did before. Baitfish are willing to seek deeper depths, and when their forage goes deep, so do the sportfish. Learn more here.

 

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DO YOU LIKE CONTESTS?
Me, too.
As you may know the Kowalski Heat Treating logo finds its way
into the visuals of my Friday posts.
I.  Love.  My.  Logo.
One week there could be three logos.
The next week there could be 15 logos.
And sometimes the logo is very small or just a partial logo showing.
But there are always logos in some of the pictures.
So, I challenge you, my beloved readers, to count them and send me a
quick email with the total number of logos in the Friday post.
On the following Tuesday I’ll pick a winner from the correct answers
and send that lucky person some great KHT swag.
So, start counting and good luck!  
Oh, and the logos at the very top header don’t count.
Got it? Good.  :-))))
Have fun!!

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Leafy

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Autumn really is a wonderful time of year.  You can even eat it!!!  : )))))))))))

As you can tell by my posts lately, there are many things I love about fall — from the brisk air to the deluge of football to the tantalizing scent of pumpkin spice — but there’s one striking visual that sets autumn apart from any other season: the brilliant hues of red, orange, and yellow foliage.  Jackie and I love to go for long walks in the parks and long drives on the weekends, soaking in the incredible beauty of the northeast Ohio landscapes.  I know I’ve written a bit in the past about leaves and colors, but I thought it’s a good time to touch on the science (and beauty) that surrounds us.  So, here’s a little science, a little history, and a whole lot of fun in salute of the season – enjoy and be sure to click on the music link below to set the mood while reading – one of my favorites.  Thanks to you tube, interestingfacts.com, ssec.si.edu, esf.edu, canr.msu.edu, fs.usda.gov, harvardforest.fas.harvard.edu, redbookmag.com, grammarist.com, livescience.com, goodnet.org, slate.com, wiley.com, nowthisnews.com, atlasobscura.com, and dictonary.com.

An Autumn Listen

Deciduous Trees Change Color, But Coniferous Trees Don’t
The bright crimson and gold tones of fall foliage are found primarily on the branches of deciduous trees, an arboreal subset that includes oaks, maples, birches, and more. The word “deciduous” itself stems from the Latin decidere, meaning “to fall off,” and the term is used to describe trees that — unlike conifers and other evergreens — lose their leaves during the autumn as they transition into seasonal dormancy.  So, now you can impress the kids by saying – “Yea, that’s a deciduous tree” … (just watch the leaves!).

Deciduous trees have broadleaves: flat, wide leaves that are more susceptible to weather-induced changes compared to the thin needles of their coniferous counterparts.  As sunlight decreases and temperatures drop, chlorophyll production in these broadleaf trees ramps up, which in turn gives way to other pigments that produce the red, orange, and yellow tones of autumn. There are some geographic exceptions to this rule, however, as deciduous trees in the southern United States are more likely to maintain their green color than those in the North, primarily due to the region’s milder winters.

A Leaf’s Color is Determined by It’s Tree Type
There are three different pigments responsible for the coloration of autumn leaves: chlorophyll, carotenoids, and anthocyanin. Chlorophyll, the most basic pigment that every plant possesses, is a key component of the photosynthetic process that gives leaves their green color during the warmer, brighter months. The other two pigments become more prevalent as conditions change. Carotenoids are unmasked as chlorophyll levels deplete; these produce more yellow, orange, and brown tones.

Though scientists once thought that anthocyanin also lay dormant during the warmer months, they now believe that production begins anew each year during the fall. The anthocyanin pigment not only contributes to the deep red color found in leaves (and also fruits such as cranberries and apples), but it also acts as a natural sunscreen against bright sunlight during colder weather.

During the transformative autumnal months, it’s easier to discern the types of trees based on the color of their leaves. Varying proportions of pigmentation can be found in the chemical composition of each tree type, leading to colorful contrasts. For example, red leaves are found on various maples (particularly red and sugar maples), oaks, sweetgums, and dogwoods, while yellow and orange shades are more commonly associated with hickories, ashes, birches, and black maples. Interestingly, the leaves of an elm tree pose an exception, as they shrivel up and turn brown.

The Etymology of the Word “Fall” Refers to Falling Leaves
Prior to the terms “fall” and “autumn” making their way into the common lexicon, the months of September, October, and November were generally referred to as the harvest season, a time of year for gathering ripened crops. Some of the first recorded uses of the word “fall” date back to 1500s England, when the term was a shortened version of “fall of the year” or “fall of the leaf.”

The 1600s saw the arrival of the word  “autumn,” which came from the French word automne and was popular among writers such as Chaucer and Shakespeare. By the 18th century, “autumn” became the predominant name for the season in England, though over the following century, the word “fall” would grow in popularity across the Atlantic. But while some proper British English linguists consider fall to be an Americanism, the term actually originated in England, and both “autumn” and “fall” are used interchangeably today.

When English poets started using the phrase “the fall of leaves” it became very fashionable to call the season fall. But by the mid-1800s, after the split of the colonies from England led to language change,  England reverted back to Autumn and the American upstarts retained fall.

American Trees Produce Redder Leaves Than Northern European Ones
While America is home to a wide array of both reddish and yellow autumnal hues, trees in Northern Europe are more universally yellow in color. One fascinating theory for why that is goes back to 35 million years ago. During the ice age of the Pleistocene era, America’s north-to-south mountain ranges allowed for animals on either side to migrate south to warmer climates, whereas the east-to-west Alps of Europe trapped many animal species that became extinct as freezing conditions took hold in the north. The result was American trees producing more anthocyanins — and thus a darker red color — to help ward off insects, whereas European trees didn’t need to do the same, since extinct insect species no longer posed a threat. This phenomenon also occurred in East Asia, where forests bear a similar resemblance to those in America, as opposed to the uniquely yellow forests of Northern Europe.  (USA!  USA!  USA!)

——> Bonus Trivia <——

More People Fall in Love in Fall
Does cold weather make you want to cuddle with someone? You are far from alone. According to Redbook, the cooler weather in fall makes people want to get closer to others and not be alone for the winter. So get ready to snuggle in the fall.

You Can See the Brightest Full Moon in Fall
The full moon in the fall that occurs during the equinox is much brighter (almost orange) and rises much earlier than a typical full moon. This full moon, called the Harvest Moon) occurs sometime in September or October and it was very helpful for farmers who used the moonlight to help harvest their crops.

Try Tempura-Fried Maple Leaves – A Japanese Delicacy
While most Americans rake up autumn leaves and throw them into a garbage bin, in Japan, they are the main ingredient of a delicacy. Momiji tempura is a popular snack that originated in the city of Minoh, about 10 miles north of Osaka, where the first commercial fried leaf vendor opened in 1910. Legend has it that around 1,300 years ago, a traveler was so taken by the beauty of the autumn maple leaves in the region that he decided to cook them in oil and eat them. Fear not if you’re a germaphobe, though — the leaves used in momiji tempura are freshly picked off trees, never scooped up from the ground. Preparation involves soaking the maple leaves in salt water (sometimes for up to a year), frying them in a tempura batter, and coating them with sugar and sesame seeds for a sweet, crunchy treat.

 

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DO YOU LIKE CONTESTS?
Me, too.
As you may know the Kowalski Heat Treating logo finds its way
into the visuals of my Friday posts.
I.  Love.  My.  Logo.
One week there could be three logos.
The next week there could be 15 logos.
And sometimes the logo is very small or just a partial logo showing.
But there are always logos in some of the pictures.
So, I challenge you, my beloved readers, to count them and send me a
quick email with the total number of logos in the Friday post.
On the following Tuesday I’ll pick a winner from the correct answers
and send that lucky person some great KHT swag.
So, start counting and good luck!  
Oh, and the logos at the very top header don’t count.
Got it? Good.  :-))))
Have fun!!

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FIRE!

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Fire hydrants are important in any community. But they are also kind of funny looking. And with a little imagination they can really be something else!!!  :)))))))  Trivia follows…read-on! 

Recently, out walking with Jackie the other night in the small village I live in, I noticed a whole bunch of new construction improvement projects going on.  New bridges being built, roadways getting resurfaced, condos going up and new hiking paths connecting our beautiful parks to the lakefront.  I also noticed something I never really pay much attention to – someone had repainted all the fire hydrants along the road – all the rust and old paint was gone, now shimmering with a nice navy-blue color on the bottom and a clean white cap on the top.  It got me to look a little closer at the hydrants – and I realized I really didn’t know much about the history or design of these vital city assets. Not much technology here – cast iron pipes with valves, chains and bolts. Although my entire career has been spent working with stuff like this. It’s always fascinating how stuff is made! Back at the ranch I searched the web, I collected some fun information, and uncovered some very cool inventors/designers whose original designs (pretty much what we have today) date back to the early days of our country’s founding.  Special thanks to American-usa.com, bmefire.com, YouTube, asme.org and Wikipedia.com for the info.  Enjoy!

Fun tune while reading

  1. Because I love his name, I would like to be able to share that Birdsill Holly, Jr. (holder of 150 patents, second only to Thomas Edison), is universally recognized as the inventor of the fire hydrant (he was something of a heat expert using steam). But, while the National Inventors Hall of Fame credits him as the inventor of the “modern-day fire hydrant,” the origins of the fire hydrant precede him, dating to the early 19th century in Philadelphia, where engineer Frederick Graff, Sr., may well have designed the first of them.
  2. As far as historians know, Frederick Graff, Sr., Chief Engineer of the Philadelphia Water Works, was the inventor of the fire hydrant. They think he received a patent for his ground-breaking invention in 1801, and suspect he is the person to thank for protecting countless homes and communities from the ravages of an uncontrolled fire. (the reason they don’t know for certain is because the evidence relating to the firefighting technology was destroyed … wait for it … yup, by fire!)
  3. If only this innovative firefighting system had been in operation near the U.S. Patent Office on December 15, 1836, we might not have to wonder about the true inventor of the fire hydrant. On that day, a fire broke out in the building where all U.S. patents were stored. An estimated 9,957 patents were destroyed in the blaze, wiping out official evidence of inventors’ contributions and rights to technological progress, including all records pertaining to the true inventor of the fire hydrant.
  4. The government sought to restore its records. Many patent holders came forward with their copies of the official paperwork, and from those copies, the official records were recreated. Unfortunately, out of the 9,957 patents that were destroyed, only 2,845 were able to be restored. All patents on record from prior to the 1836 fire are officially classified as “X-Patents.”
  5. The deployment of water-containing caldrons for use in firefighting reaches back to ancient China. Using the same approach, scattered cisterns (storage vessels) stored water in colonial American cities to battle blazes. Hollowed wooden logs provided underground main water lines (like the lines we still have today).
  6. The term “fire plug” dates from the time when water mains were made from hollowed out logs. The fire company (usually volunteers) would head out to the fire, dig up the cobbles in the road down to the main water line, then bore a hole into the main so that the excavation would fill with water which they could draft using their pumper. When finished fighting the fire, they’d seal the main with — you guessed it — a “fire plug”. The next time there was a fire in the neighborhood, they’d dig up the plug and not have to cut into the main.
  7. In London, after the Great Fire of 1666, water mains were preemptively equipped with holes and plugs that were accessed above ground. In many places, wood mains gave way cast iron replacements, which began to be outfitted at intervals with branched fittings that drew water from the mains, acting like underground hydrants.
  8. In about 1801, where someone at the Philadelphia Water Works–most likely Frederick Graff, its senior engineer–created the first “post” or “pillar” hydrant, which rose above ground. It was topped with a valve and featured an outlet that acted as a faucet but also could be attached to a hose. Water was always present in its “wet barrel”.  To prevent freezing and bursting in cold climate locales “dry barrel” hydrants were later designed in which the hydrant remained empty until it was necessary to access the water flowing beneath the frost line.
  9. Prior to the invention of the fire hydrant, fight-fighting techniques consisted of maintaining large cauldrons of water in strategic locations near population centers or filling underground tanks with water, both systems entirely dependent on whether sufficient water had been stored up to combat whatever nearby fire might break out. The fire hydrant was revolutionary in that it allowed for a continuous flow of water, guaranteeing that firefighters would not run out before the blaze was fully quenched.
  10. In 1802, the first order for cast iron hydrants was placed with cannon maker company named Foxall & Richards, who used cast iron to make them. In 1803, Frederick Graff Sr. introduced an improved version of the fire hydrant with the valve in the lower portion. These were inserted into wooden mains with a tapering joint. In 1811, Philadelphia claimed to have 230 wooden hydrant pumps and 185 cast iron fire hydrants.  See different barrel designs here
  11. Today, many valves and hydrants are produced by AMERICAN Flow Control, all are provided with 2-D bar codes. Using an app called AFC Mapper, these bar codes can be scanned by an iOS or Android smart phone or tablet. The app works to integrate the information on the AFC 2D barcodes to help water utilities automate mapping functions, locate and manage assets, and improve field operations efficiency.
  12. Using the app, field personnel have quick access to information such as fire hydrant thread specs, or the depth of bury of their hydrant. This information is invaluable in troubleshooting a problem or planning for future changes and/or system expansion.
  13. This information is critical to the utility technician trying to troubleshoot a problem or locate a valve or hydrant. Take for instance, a weather-related event like Hurricane Katrina or Sandy – these storms literally changed the landscape of the affected areas forever. Locating the valve or hydrant and having access to previous records, as well as all of the manufacturing attributes proved to be a real difference-maker during those instances.
  14. Brief History of fire trucks

How They’re Made!!

 

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DO YOU LIKE CONTESTS?
Me, too.
As you may know the Kowalski Heat Treating logo finds its way
into the visuals of my Friday posts.
I.  Love.  My.  Logo.
One week there could be three logos.
The next week there could be 15 logos.
And sometimes the logo is very small or just a partial logo showing.
But there are always logos in some of the pictures.
So, I challenge you, my beloved readers, to count them and send me a
quick email with the total number of logos in the Friday post.
On the following Tuesday I’ll pick a winner from the correct answers
and send that lucky person some great KHT swag.
So, start counting and good luck!  
Oh, and the logos at the very top header don’t count.
Got it? Good.  :-))))
Have fun!!

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::