The Deadliest Volcano Ever
The damning evidence keeps rolling in with regards to volcanoes and mass extinctions.
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“Geologist [I'm Climate Change]”
Since: Mar 07
#1 Apr 3, 2013
The first view of the Salt range without a nut job taking pots shots at you and trying to steal your belongings/women/both.
The interesting bit about the article is that the Earth as a result of the shape of the agglomerated Pangaea continent had its climate permanently locked into the continentally dominated and inefficient climate mode#2 where strong monsoonal flows run from equator to pole (in this case rooted in the continent & dry). the bulk of convergence & rainfall as a result of dry monsoonal flow passing over both poles was in the mid Pacific on the opposite side of the planet, & also in the W. part of Pangaea along the promontories extending into the ocean where marine air moved into the monsoonal flow. The bulk of the "<" shaped Pangaea continent was a desert with occasional squall line fed storms in the W. part & recurving tropical storms in the E. part for moisture.
The heating ran (as it is climate mode#2) in accordance with the Jason model of global warming with the result being the CO2 driven plateau basalt eruption inducing a heat bath. The SO2 erupted & the same time then caused the bulk of the oceanic extinctions by causing a eutrophic ocean floor rich in H2S, with upwelling on occasion resulting in coastal mass poisonings.
Good news @ present is that we are NOT constrained in climate mode#2 by continental shape.
Currently 4 climate modes of different efficiency are possible during the Pleistocene (2.2Ma to the present).
Climate mode#1, oceanically modearted cold default belt weather during the refrigeration part of the ice ages is even less efficient than mode#2 and heats up the equatorial region very fast while the poles (under ice @ the time) refrigerate.
Climate mode#2 (the Jason model) is continentally moderated with fixed monsoonal roots switching from N. to S. with seasons and variable strengths. This is the model that the AGW campaigners base their religion on. It has a high temperature cutoff (!).
Climate mode#3 is a more efficient mode than mode#2 (~2 deg c cooling per given CO2 value), it has a high starting temperature (just reached), and is oceanically moderated reducing the effects of the monsoons perturbing the temperate rainbelt. when operating cold its temperate rainbelt latitude is approximately the same as the N. Mediterranean. It can operate HOT in which case the temperate rainbelt reaches a higher latitude than the arctic or antarctic circles. During the pleistocene it switches OFF the gulf stream warm current and ends the interglacials @ that point.
Climate mode#4 results from a warm oceanic hot pool up against an impassable continental barrier (El Nino) it is a geometric fit of 3 cells per hemisphere running from equator to pole & back in a loop and is VERY efficient @ cooling the planet. It results in ice ages with global average temperatures ~6 deg c lower than @ present. It can only operate with the gulf stream OFF, and ice caps require an oceanic hot pool with somewhere to dump all the water. The Laurentide ice cap is the chief one fed by the El Nino hot pool, but Antarctica also gets dumped on with this mode in operation. It cannot run forever so once the heat is drawn out of the oceanic hot pool it shuts down and is replaced by climate mode#1.
Ice ages (glacial periods) alternate between periods of climate mode#1 and climate mode#4.
Warm spells (interglacials) begin with climate mode#1 with a cold ocean with the gulf stream just switched ON after an extreme cold spell got through the snowbergs, It then runs for a LONG time spell in mode#2, at end interglacial there is a short spell of mode#3 which switches OFF the gulf stream. The interglacial ends with mode#4 which rapidly cools the climate,(start glacial).
Have a nice day: Ag
#2 Apr 20, 2013
Tambora is the deadliest Volcano ever!!
Since: May 12
#3 Apr 30, 2013
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