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Posts
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Everything posted by Phil
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Dewpoint hovering around 70 degrees right now. Yuck. Huge changes in the trees over the last few days. Everything was green just two days ago, now lots of color showing up.
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DCA is current at 87F, which is the hottest temperature ever recorded there so late in the year. High temp/dew here today is 83.8/68. Nasty, glad this torch is coming to an end. Hopefully this is the last 80+ day for the next five months.
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Yeah, it's kinda spooky to think about eternity, because humans process information linearly (hence our creation of "time" as a constructive, relativistic conduit to our understanding of the universe, as a substitute for entropy). In truth (most likely) nothing is "linear", and time (as we know it) is merely a reflection of entropy, either by our own construction, or as a real expression (debatable). Personally, I'm fascinated with circles and curves, and I believe there's a reason they're the only universal expression.
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My interpretation of QM theory leads me to believe that we don't exist "within" dimensions, rather that we *are* dimensions. The only local reality is within the so-called "self". Think of the Schrödinger's cat dilemma, except replace the cat with a human, say, me. Am I dead or alive? From your perspective, I'm in a potential state, but obviously, from my perspective, I'm in an actual state. So, do we just assume this juxtaposition is just another "normal" abnormality on a single dimensional plane, or are we looking at separate planes of reality?
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Looks like we warmed 24 degrees in 3hrs yesterday morning, from 54 degrees at 8AM to 78 degrees by 11AM. Decent swing for autumn. Usually these big diurnal swings are more common during Spring when the humidity is lower.
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Noticed a change in the trees today, particularly in the tulip poplars. Some differential shades of yellow showing up.
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Also, the mechanism through which CO^2 warms the planetary temperature isn't via a direct backradiative conduit, as was suggested. The whole "reflecting radiation back to earth" thing is nothing more than a gross oversimplification. What happens is the molecule (tri-atomic) absorbs IR within particular frequencies not fully saturated within the AW. Upon absorption, the molecule enters an excited state and transfers some of this kinetic energy to non-homogeneously emitting bi-atomic N^2/O^2 molecules in the upper troposphere, where it can be thermalized directly and diffused through the column given the molecular collisional frequency in that domain is higher than CO^2's emissive frequency. This process raises the emissive-equilibrium altitude across the globe (where radiative exchange ratios are analogous to the planetary greybody temperature derived via the Stefan-Boltzmann equations). In reality, the IR portion in reference within the AW is saturated no more than 2 meters off the ground. The changes to radiative balance are rooted aloft, not at the surface.
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This is both wrong and a misinterpretation of my post regarding attribution ratios. It's also a mischaracterization of the workings of the greenhouse effect itself. 1) Simple radiative transfer physics dictate the radiative forcing per doubling of CO^2 is ~ 3.7W/m^2 which is analogous to ~1.2C of surface warming. Up until 1950, the CO^2 content increased by less than 40ppm. So given the relative content fractal at the time, that's around 0.57W/m^2, or a statistically insignificant amount of surface warming. 2) I never said scientists denied natural climate change. How exactly you could derive that from my post is a mystery to me. I stated, clearly and concisely, that many scientists deny significant natural climate change (within the resolution in question), despite evidence to the contrary throughout the proxy records.
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Oh there's definitely a connection. Actually there are multiple connections on various timescales that are well established within the peer reviewed literature. The most fascinating aspect, from my perspective, is the impressive correlation between ENSO and intra-cycle/full cycle solar wind variations. Lots of peer reviewed literature on the matter, but physical explanations are lacking and/or highly uncertain. Even many of the most diehard "alarmist" scientists will admit to the solar forcing on seasonal-to-decadal circulation(s), from the stratosphere to the tropical troposphere. The disagreement begins when we move from "regional" temperature variations to "global" temperature variations. Despite the evidence that the degree and distribution of tropical convection/cloud cover (hence the systematic radiative/energy budget) is significantly altered by variations in solar activity, it is often dismissed without quantitative (or even qualitative) reasoning. These guys will do anything to inflate CO2's responsibility in the post-1976 warming, because virtually the entirety of the warming from 1850 to 1950 requires a natural explanation, and admitting the existence of natural climate change undermines the proposed positive feedback loops required for significant AGW. This in spite of the widespread evidence of very large global climate swings within the Holocene..much larger than anything observed in recent millennia.
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Record highs should be easy today. Mid-80s region wide. At least the longer October nights allow lows to drop into the 50s most of the time. Woke up to 55 degrees and a light fog this morning. Looks like we finally get a low frequency pattern change later this week. Almost a classic Archambault event w/ the NAO flip.
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I'm not sure I'd go that far. Intraseasonal forcings can/do fall into states unrepresentative of the background state, though, and this year the background state is quite weak, so I guess it's not surprising. It's the persistence that's been notable. Since September that GOA vortex has basically refused to budge. If it lasts into/through November, the statistical odds of NPAC blocking in DJF will decrease substantially.