Bad air time!!!
What and how can the natural phenomenon of 'inversion of temperature lapse rate' of the season make us harm ourselves!!!???!!
The mountain of 'Doi Suthep' in the city of Chiang Mai of northern Thailand has just completely disappeared from the background!! A comparison of the photos in the rainy season of eight months ago and the photo taken today March 14th, 2021.
There's an old Sansakrit proverb much adoredby modern-day meditator: "For breathe is life, and if you breathe well you will live long on earth." 😂 So take a good breath breath breath anyway 😊 although the natural phenomenon of the 'inversion of temperature lapse rate' is so strong presently in the north causing the air to be full of haze, smoke, ashes, dusts, micro particulate matters, fume, etc.!! But, what actually is the inversion of temperature lapse rate phenomenon? and how does it occur? Of course there's a scientific explanation in the subject of Meteorology and Atmospheric sciences.:
During the period of dry days and months long a very strong heat from the winter in transitioning to full summer sun causes the ground and entire sky - the atmosphere - troposphere in specific regions to be extra warm. At night as the ground becomes cooler quicker than the sky it also causes the air nearer to ground of the so called 'planetary boundary layer' just above ground or terrain up to about 5,000 which may as well extend further up to around 10,000 feet to become cooler too in addition to the sinking air of high pressure cool airmass of the winter time. Here is where the 'temperature lapse rate' is more reasonable as it literally decreases naturally at the rate of approximately 2°C per 1,000 feet along with higher height. (dry adiabatic temperature lapse rate). For the sky higher than the said altitudes above the temperature lapse rate is in fact inversed for some thousands of feet of a layer. This layer gradually becomes warmer as height increases because the heat from strong winter sun in the day is still trapped in the sky as the air, by its properties, releases heat much slower than the ground. Therefore, the entire process prevents the sinking cooler and heavier bad air to rise higher than the warmer layer which acts as a covered lid. All kinds of extremely dry dusts, so much hygroscopic and microscopic as well, just got stuck under the lid layer on top. The whole sky is very stable without any instability and soaring. The air is very still with no breeze during the days when the inversion of temperature lapse rate is in full swing. This is the dry period when weather modification or rainmaking is more in an impractical side in most aspects. A possible chance of natural summer storms, many are destructive, of the season are also what have to be very cautious in every way.
Naturally during this dry season haze, dusts, ashes, organic particulate matters, fumes from fields and forests also occur seasonally. But if human's activities cause more microparticles of smoke from field and forest wild fire, ashes, dusts, fume, etc. as well as fume from fossil fuels burnings then the air at around where we live could be bad and harmful. And as we all know the kind of N95 masks could help filtered the air too as a choice for anyone. For those who are fortunate enough staying indoor with air-purifier and air-condition machines could solve a lot of health problems.
When the rainy season arrives with good humidity from the monsoon wind the natural phenomenon of the inversion of temperature lapse rate simply fades away. There are good instability and soaring conditions with good wind due to unequal heat from the sun. The air lifts itself very well and most microparticles will not get trapped but rises freely. This is the time we see beautiful blue sky with patches of clouds, rain clouds, and good rain once again. 😊😌 Here's when the weather modification - rainmaking and rain enhancement operations are suitably practical to correctly be done so as needed. That's about the month of May onwards.
Best of luck to all,
Chititewan Devakul, Pete
Weather modification expert and pilot (and a keen cyclist and sailor!)
mlcdevakul@gmail.com
😂
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