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#1
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Today's Lesson on why the North East US has been getting clobbered by
Severe Weather. http://ecosyn.us/1/temp_july7/ITCZ.html This is mostly pictures which explainsthe dynamics of the tropical circulation which originates along the equator and has "teleconnections" for events thousands of miles away. Heavy with graphics, this is 1 megabyte of images, including the major hurricane in the Pacific, Typhoon Ewiniar, category 3 currently. Solar heating and nightime cooling creates dynamics which are plainly visible on satellite imagery. The Inter-Tropical Convergence Zone (ITCZ for short) is shown from Africa to Asia across the Atlantic and Pacific Oceans, and the North American offramp of the storm superhighway is seen through INFRARED VISION. IR radiation, the global warming form, is visible through several channels used by satellite instruments. We can see heat, and we can see water vapor too thin to be visible by the human eye. We can roughly gauge the power of hurricanes from their heat signatures. The bright purple color of daytime Africa and North America is plainly visible, and you can tell what time it is by the color of purple on the land masses. That's heat energy, and it's not invisible to science. It's not even invisible to the general public who visits the NOAA satellite access website. http://www.ssd.noaa.gov/ http://www.ssd.noaa.gov/PS/TROP/trop-atl.html http://www.ssd.noaa.gov/PS/TROP/trop-epac.html |
#3
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Eric,
This is completely incorrect. The Inter-Tropical Convergence Zone gradually shifts northward through the tropical NORTHERN hemisphere during the NH summer. Deep moist convection (i.e. thunderstorms) firing along this band, when aided by Kelvin and Rossby waves propagating through the ITCZ, is what gives rise to most of the cyclone activity during summer/fall hurricane season. The aforementioned satellite images do show this quite well -- it's only a matter of time before things start getting quite active again. Hate to bust your bubble and incur a blast of your usual outpouring of filth, but you apparently don't know what the ITCZ is. AIUI, the ITCZ may be thought of as the "Weather Equator", which marks the boundary between the NH and SH weather systems. It moves with the seasons, such that during NH summer, the ITCZ is pushed into the SH and in NH winter, it moves into the NH. Given that it's now summer in the NH, the ITCZ will not appear on any of your satellite graphics, which do not extend past the Earth's Equator. |
#4
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Eric Swanson wrote:
In article om, says... Today's Lesson on why the North East US has been getting clobbered by Severe Weather. http://ecosyn.us/1/temp_july7/ITCZ.html This is mostly pictures which explainsthe dynamics of the tropical circulation which originates along the equator and has "teleconnections" for events thousands of miles away. Heavy with graphics, this is 1 megabyte of images, including the major hurricane in the Pacific, Typhoon Ewiniar, category 3 currently. Solar heating and nightime cooling creates dynamics which are plainly visible on satellite imagery. The Inter-Tropical Convergence Zone (ITCZ for short) is shown from Africa to Asia across the Atlantic and Pacific Oceans, and the North American offramp of the storm superhighway is seen through INFRARED VISION. Hate to bust your bubble and incur a blast of your usual outpouring of filth, but you apparently don't know what the ITCZ is. AIUI, the ITCZ may be thought of as the "Weather Equator", which marks the boundary between the NH and SH weather systems. It moves with the seasons, such that during NH summer, the ITCZ is pushed into the SH and in NH winter, it moves into the NH. Given that it's now summer in the NH, the ITCZ will not appear on any of your satellite graphics, which do not extend past the Earth's Equator. Um, that is the ITCZ visible in the imagery. Relatively stronger SH polar air masses are pushing into the NH while the summer weakened NH polar air masses are not pushing as hard or far, resulting in the ITCZ's current drift northward. I do take exception to the description that the 'ITCZ splits'. The ITCZ is a result of convergence between northern and southern air masses. There is convergence associated with other polar air masses, whether or not they impinge upon air masses from the opposite hemisphere. In this sense, it is more elucidating to focus on the convergence without projecting an independent identity to the ITCZ. (Yes I've been reading LeRoux again). Another point is that the wandering ITCZ carries with it a huge amount of water vapor. This seasonal hemispheric variation of water vapor is used as evidence of water vapor feedback to temperature. The ITCZ is a dynamic feature, however, so the strength of the feedback is probably overstated. |
#5
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#6
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![]() BlithelyAcceptTheDominantParadigm wrote: Eric Swanson wrote: In article om, says... Today's Lesson on why the North East US has been getting clobbered by Severe Weather. http://ecosyn.us/1/temp_july7/ITCZ.html This is mostly pictures which explainsthe dynamics of the tropical circulation which originates along the equator and has "teleconnections" for events thousands of miles away. Heavy with graphics, this is 1 megabyte of images, including the major hurricane in the Pacific, Typhoon Ewiniar, category 3 currently. Solar heating and nightime cooling creates dynamics which are plainly visible on satellite imagery. The Inter-Tropical Convergence Zone (ITCZ for short) is shown from Africa to Asia across the Atlantic and Pacific Oceans, and the North American offramp of the storm superhighway is seen through INFRARED VISION. Hate to bust your bubble and incur a blast of your usual outpouring of filth, but you apparently don't know what the ITCZ is. AIUI, the ITCZ may be thought of as the "Weather Equator", which marks the boundary between the NH and SH weather systems. It moves with the seasons, such that during NH summer, the ITCZ is pushed into the SH and in NH winter, it moves into the NH. Given that it's now summer in the NH, the ITCZ will not appear on any of your satellite graphics, which do not extend past the Earth's Equator. Um, that is the ITCZ visible in the imagery. Relatively stronger SH polar air masses are pushing into the NH while the summer weakened NH polar air masses are not pushing as hard or far, resulting in the ITCZ's current drift northward. BZZZT. Wrong answer contestant, but thanks for playing. Thermodynamics flows from warmer to cooler, always, always, always -- NEVER in the reverse direction in this universe. The seasonal axial tilt establishes a solar equator where the sun's rays enter the atmosphere in the most perpendicular angle. This has the least obscuring atmosphere and therefore receives the maximum possible solar energy. If there were no polar ice at all the ITCZ would still be where it is based on Earth's season axial tilt. THe fact that the ITCZ is more north in NH summers means that coolth in the SH winter can approach closer to the equator. It cannot displace or move the ITCZ, never, not ever. The heat source has moved, not the cold has forced it away. Do try to learn basic heat physics before bothering your betters with annoyances. I do take exception to the description that the 'ITCZ splits'. That's why my weather predictions are usually far more accurate and reliable than yours. You don't understand the planet you were born on. You think purity in language trumps deep understanding of physical dynamics. Not only do you not understand basic physics, you also don't understand communication: how to give it and how to recieve it. Boy are you dumb. The satellite pictures display what looks like a mushroom stem planted in the ITCZ at Central America, particularly the channel 3 water vapor satpix. The channel 3 Infrared is tuned to see otherwise invisible watervapor that does not show on visible imagery. The channel 4 infrared enhancements also show the moisture superhighway splitting, but it is less visible. Even more so in daytimes, as the ground heat below swamps out the vapor heat so that not much of the tropical moisture is visible on channel 4 pix. It is visible, barely, but as dusk approaches the cooling air condenses the moisture into clouds and evening thunderstorms which shout out from the pictures -- not even a guy as dumb as you can miss them then. The ITCZ is a result of convergence between northern and southern air masses. Absolutely 100% assbackwards wrong. Solar heat is the origin of all weather. IT begins in the place of maximum heat and works outwards from there, interacting with various other physical phenomena it encounters. The rising heat at the solar equator cools in the upper air and descends outside the thermal vent it rose in. To call it a "convergence" is like Ben Franklin flipping a coin to nominate the positive pole of a battery the power flow source. He had two choices and picked the only possible wrong one. Electronics has been made harder to study ever since trying to teach students that holes travel from + to - poles, instead of that electrons flow from - to + poles. What is converging on the ITCZ is sunlight solar power. Everything after that is effect, not cause. There is convergence associated with other polar air masses, whether or not they impinge upon air masses from the opposite hemisphere. In this sense, it is more elucidating to focus on the convergence without projecting an independent identity to the ITCZ. (Yes I've been reading LeRoux again). Well than stop reading LeRoux. I managed to create one simple webpage which ilustrates all the main features of the forces in play to create the recent deluges on the East Coast US. You, on the other hand, just managed to get yourself all confused and try to pass on your confusion like some contagious social disease. Another point is that the wandering ITCZ carries with it a huge amount of water vapor. This seasonal hemispheric variation of water vapor is used as evidence of water vapor feedback to temperature. More gibberish from the depths of dumbness. The solar intensity is pretty constant averaged over a century, and doesn't vary all that much daily whenever there are no slar flares pointed our direction. That solar heat is most conveniently measured in calories, which is the appropriate measurement on a planet covered 70% by liquid water. Water has three main states on Earth: gas, liquid, and solid. The transition from one state to another state is accomplished by addition or subtraction of known quantities of energy measured in calories. There is a maximal amount of heat energy which can be accumulated in the tropics, as inputs above this amount will convert water to gas. Global Warming does not show at the equator as temperature increases, but as water vapor increases. Most of the Equator is over water. The narrowest part of Africa, a slice of South America near water, a tail of India, and some islands are are all the lands there are on the equator. During NH summer, the solar equator includes a thicker part of India and Africa, but next to none of South America. There isn't any Great Circle path around the globe that can hit less land masses. The ITCZ is a dynamic feature, however, so the strength of the feedback is probably overstated. Were you smoking crack all last year? Those 28 tropical cyclones in the Atlantic basin weren't reported in your comic books? Those are heat engines, buddyboy, and they each carried fantasmagorical quantities of water. WE just went through the math on Hurricane Rita in this forum last week again -- were you passed out drunk on the floor? Hurricane Wilma dropped 50 inches of rain on one Western Cuba weather station in one 24-hour day. How tall are you? Do you think you might notice water up to your chin? There's no such thing as OVERSTATING this feedback -- people still don't have the foggiest idea how much energy is involved, and how much ass of water is impacted by that energy. Water has no reasoning powers or decision making capability. It responds to heat energy without going AWOL like drunkard George Bush in the TANG. It doesn't get any say in the matter. It obeys the laws of physics. Ultimately, so do you, and when the laws of physics dictate that your lifespan has ended, that's the end of you. |
#7
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Prosecute SCAIFE for Global Warming FLOOD Damages wrote:
http://ecosyn.us/1/temp_july7/ITCZ.html Hate to bust your bubble and incur a blast of your usual outpouring of filth, but you apparently don't know what the ITCZ is. Um, that is the ITCZ visible in the imagery. Relatively stronger SH polar air masses are pushing into the NH while the summer weakened NH polar air masses are not pushing as hard or far, resulting in the ITCZ's current drift northward. BZZZT. Wrong answer contestant, but thanks for playing. Thermodynamics flows from warmer to cooler, always, always, always -- NEVER in the reverse direction in this universe. Yes, the laws of thermodynamics hold. Not apt to The ITCZ, however, which is a matter of FLUID dynamics. Given the same velocities, denser air masses dominate sparser air masses and will continue motion until encountering topography or masses of equal momentum from the opposing hemisphere. Or until they are more slowly modified. Thermodynamic processes are quite significant, largely because they determine the density discontinuities which govern the general circulation. |
#8
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Overall you're correct, though the 'ITCZ' is not
really that well defined most of the time. It's more important to note the heaviest convection 'follows the sun' (that is, where the sun is directly overhead). It gets complex where land and ocean meet. Actually for about the month surrounding either solstice the latitude receiving the most solar insolation is around 40 degrees (north or south). This leads the monsoon flows over the SW US and India (for example) as continental heating draws moisture inland. THere's also a considerable lag between the height of tropical weather and the solstice, in either hemisphere. I also agree, strongly, with you're other post regarding GW and temperatures. At this point GW is more important in how it's affecting the dynamics of the radiation budget and not so much the actual temperature (of course in the future the increasing temps. may well be more important). Land and dry air temps have their predictable rise and fall, it's those frisky water molecules that are what really make things complex as far as storing and releasing large amounts of energy in the atmosphere. As has already been predicted GW will likely accelerate the hydrologic cycle, meaning more erratic and extreme weather. More gully washers and tropical storms. It was in '96 or '97 that I witnessed, first hand, a pinch off from the ITCZ all the way north to where I live in Wisconsin. This was in early August. A roughly north/south line of deep deep convection flared up and I was able to witness a sheer wall of cloud rising to over 50,000', not obscured by scud or low clouds. Quite impressive to see the local rep of the convection god. Water vapor imagery clearly showed the connection to the ITCZ off the tip of the Baja penin. with the water vapor streaming all the way to the midwest US. It was commented on by the weather channel - the announcer actually noted the connection between the ITCZ and the very heavy thunderstorms over the midwest. Some of the largest clouds I've ever seen, and some of the fastest growth I've ever witnessed too - like watching a bomb go off. I was made a devotee on the spot. |
#9
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![]() Prosecute SCAIFE for Global Warming FLOOD Damages wrote: Today's Lesson on why the North East US has been getting clobbered by Severe Weather. Hey retard, I live in the NE US. We haven't been getting clobbered by Severe Weather. Now, on to your next lie, retard. |
#10
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![]() Prosecute Sun Myung Moon for Global Warming FLOOD Damages wrote: wrote: Prosecute SCAIFE for Global Warming FLOOD Damages wrote: Today's Lesson on why the North East US has been getting clobbered by Severe Weather. Hey retard, I live in the NE US. We haven't been getting clobbered by Severe Weather. Now, on to your next lie, retard. Short memory, rightard. So, you can't keep track of your lies, retard? Boo ****ing hoo. |
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