September 3, 2022

Pressure gradient forcing: Turbulent storms are less common during global warming phases

Springtime in Milwaukee along Lake Michigan, 2019.  Where's the Global Warming, again?

Quick Note, for anyone wanting to finally learn the simple basics of atmospheric science, so as to help you realize how much of a con game has been played upon the American taxpayer in the 16 years since we were all told that {1} the Summertime Arctic would be all water, {2} the Maldives would be underwater, and {3} lower Manhattan be a place where humanity would have to wade through water:

Firstly, the surprising positive outcome of a hurricane is that, for a two or three week period after a hurricane, phytoplankton growth occurs.  More specifically, hurricanes trigger the upwelling of cold, nutrient-rich lower water into the ocean surface.   Next:

Baroclinic Instability.  Very simply, "baro" means pressure and "clinic" refers to "cline."  In turn, "cline" refers to grade - to grading, as in pressure gradient. 

As far as concerns Baroclinic Instability, it deals with a non-equilibrium - an intersecting line - an inequality of movement between Density and Pressure.  It is literally a sheet - a connected line - a quasi "layer" of density (called an isopycnal) not traveling parallel to (not traveling in synch with) a sheet of pressure - a connected line of pressure.  

Baroclinic Instability actually prevents Gravity from collapsing Earth's atmosphere.  In like manner, Gravity prevents Baroclinic Instability from pushing the atmosphere into outerspace.

None the less,  baroclinic instability also causes "eddys" to form in the ocean.  An eddy is a swirling current of water that aligns the oceans like gears, especially near the shoreline.  One more thing:  Baroclinic Instability causes the formation of tropical storms which sometimes turn into hurricanes.

Now, a Barotropic state is one where Pressure and Density do not intersect.  It's mostly a parallel movement.  So, it would make things seems always stable.  However, there does exist Barotropic Instability which happens when a segment (a chord within) the horizontal eddy changes its speed compared to the rest of the eddy.  Sometimes the entire direction of the swirl, aka vorticity, shifts.  It's known as horizontal wind shear.

Now, Al Gore and his financially-endowed companions stated that an increase of atmospheric co2 will cause a yearly increase of hurricanes.  He and his like-minded individuals are stated that hurricanes in general will be more intense.  The opposite of his predictions came true.  

Firstly, hurricanes did not become more rapid.  And secondly, the United States had twelve consecutive years of no MAJOR hurricane (category 3, 4, or 5) making landfall on any American shoreline.  The tie span went from Wilma (2005) to Harvey (2017).  In addition, they still has never been the equivalent of a Category 6 Hurricane.

One more thing:  Hurricanes are incapable of crossing over the Equator.  A Northern Hemispheric hurricane will rotate counterclockwise, and visa-versa for a Southern Hemispheric hurricane, aka cyclone.

Hopefully, this dash of knowledge helped at least a slight amount.  If not, look up baroclinic vs barotropic instability which will involve vertical shear vs horizontal shear.  In fact, if you do want to learn atmospheric science, aka weather theory, acquire a private pilot training Weather Theory textbook.  

Then find a website that explains Eckman Transport (where the layers of ocean in the N Hemisphere each turn a few degrees to the right, with each successive layer, in a cork screw fashion.  Next learn about upwelling & downwelling.

Let's proceed to the 2016 Democratic National Convention where the public was told a really hug lie that is still being told today.

During the 2016 Democratic Party presidential convention, Sigourney Weaver stated, as the narrator of a film presentation, that mankind never saw such disastrous weather events as it did in the 21st Century.  However, weather events were far worse or far more frequent in the 1930s, 1920s, 1890s, 1870s, 1650s, 1600s, 536, etc.  After all, it was during the centuries said to be mild in climate by climate doomsayers when massive sea storms wreaked havoc on entire naval fleets.   

See:  Sigourney Weaver's really really REALLY big lie told at 2016 Dem. National Convention

Learning of the Grindelwald Fluctuation (in Switzerland) alone would have been enough to awaken one to the reality of the true existence of the Mini Ice Age.  In fact, the Dust Bowl Years were not centuries prior to Sigourney's birth.  It was mentioned in classrooms in 1960s & 1970s.  Yet, Sigourney became the ultimate climate denier in having denied massive weather disasters throughout the past thousand years.

There was a super huge irony to this.  She's known as a SCIENCE FICTION actress, in the COMEDY sector of science fiction film making.  That particular political convention night turned out to be nothing more than another science fiction performance.   All in all, the lessons at hand go as follows ===>

   1}  Nuclear Winter is far worse than Global Warming could ever be.

 2} There is a difference between a drought (temporary) and a desert (permanent). 

3} There is also a difference between Crisis Flooding and a yearly Monsoon Season.

Next comes the Al Gore & John Kerry list of weather disasters which both non-scientist politician claims are caused by increased levels of co2 in the atmosphere.  Some of those disasters require high pressure systems, while other disastrous weather events require low pressure ones.  So, which one is it, Al Gore & John Kerry followers?  Does added co2 trigger low pressure disasters such as hurricanes or does it trigger high pressure ones such as droughts? 

Actually, according to mainstream atmospheric science (aka textbook material), the cooling of the atmosphere causes the major weather disasters, due to something called, "Pressure Gradient Forcing."

The law of pressure gradient forcing is elementary and it goes as follows ===>  The smaller the numerical temperature difference between the Poles and the Equator, the LESS is the atmospheric TURBULENCE that occurs.  Such an atmospheric turbulence is a hurricane, where the atmosphere is evening-out the heat distribution of the Earth, by sending northward the excess heat in the Tropics.  

4b2} During Global Warming phases, there is less "equalizing heat" to transfer northward.  So, during true Global Warming phases, such as during the Copper Age Warm Period, the Minoan Warm Period, the Roman Warm Period, & the Medieval Warm Period, atmospheric disturbances are less frequent.  

4b3} Likewise, if there is a greater difference in temperature between the Poles and the Equator, as there is during any Global Cooling phase, there is more of an imbalance of heat, and that amount of extra heat gets transferred northward ... or even southward until meeting the 50th Parallel South, which is called the Roaring 50s, at its seas.    This transfer of heat is a balancing act. 

Incidentally, northern hemispheric hurricanes spin counterclockwise, and southern hemispheric hurricanes (aka typhoons) rotate clockwise.  Hurricanes are incapable of crossing over the Equator.

Moreover, low pressure systems in the Northern Hemisphere rotate counterclockwise, while high pressure systems throughout that same hemisphere rotate clockwise.  Welcome to a Round Earth that spins at a 23.5 degree tilt, at 1,037 mph around its equator. 

All in all, disastrous weather events abound during Global Cooling phases, including wintertime.  After all, it's only during the wintertime when the Polar Jet Stream meanders so wildly at times.  And it does NOT do so, on account of increased co2 levels, as Bill Nye fraudulently claimed.  It does so, on account of Pressure Gradient Forcing.   All in all, introduce yourself to Heat Transfer science.