Digital Buddha
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User ID: 76866928 United States 07/07/2020 01:52 PM Report Abusive Post Report Copyright Violation | Magnetic excursion reversal can occur within a decade Previous estimates for the time frame of a magnetic excursion based upon a recent study is 10x to slow. New research indicate the excursion and potential reversal can happen in less than a decade. With Earth's magnetic excursion already underway and accelerating, our planet is entering uncharted territory in modern times. Rapid geomagnetic changes inferred from Earth observations and numerical simulations Published: 06 July 2020 [ link to www.nature.com (secure)] Abstract Extreme variations in the direction of Earth’s magnetic field contain important information regarding the operation of the geodynamo. Paleomagnetic studies have reported rapid directional changes reaching 1° yr−1, although the observations are controversial and their relation to physical processes in Earth’s core unknown. Here we show excellent agreement between amplitudes and latitude ranges of extreme directional changes in a suite of geodynamo simulations and a recent observational field model spanning the past 100 kyrs. Remarkably, maximum rates of directional change reach ~10° yr−1, typically during times of decreasing field strength, almost 100 times faster than current changes. Detailed analysis of the simulations and a simple analogue model indicate that extreme directional changes are associated with movement of reversed flux across the core surface. Our results demonstrate that such rapid variations are compatible with the physics of the dynamo process and suggest that future searches for rapid directional changes should focus on low latitudes. Introduction Rewind to the days of forgotten lore. Take heed what the wise all had in store. In the shadow of the digital Buddha are the countless wise. To bring you inspiration that you cannot buy. To lift our generation to the highest high. |
Anonymous Coward User ID: 79121016 United States 07/07/2020 02:12 PM Report Abusive Post Report Copyright Violation | Re: Magnetic excursion reversal can occur within a decade That sucks. |
Digital Buddha
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User ID: 77092497 United States 07/07/2020 09:52 PM Report Abusive Post Report Copyright Violation | Re: Magnetic excursion reversal can occur within a decade The probability of magnetic excursion accelerating rapidly over the next two decades is a certainty. Rewind to the days of forgotten lore. Take heed what the wise all had in store. In the shadow of the digital Buddha are the countless wise. To bring you inspiration that you cannot buy. To lift our generation to the highest high. |
xenophon User ID: 79122200 Australia 07/07/2020 10:12 PM Report Abusive Post Report Copyright Violation | Re: Magnetic excursion reversal can occur within a decade
The probability of magnetic excursion accelerating rapidly over the next two decades is a certainty.
Quoting: Digital Buddha magnetic north is already moving rapidly, has been for some time. it's on like donkey kong |
Digital Buddha
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User ID: 77092497 United States 07/07/2020 10:25 PM Report Abusive Post Report Copyright Violation | Re: Magnetic excursion reversal can occur within a decade We have to keep in mind that models are as good as the data available to input. Current field strength has decreased by 18% since 1859 when the Carrington event kicked off the excursion. Last Edited by Digital Buddha on 07/07/2020 10:28 PMRewind to the days of forgotten lore. Take heed what the wise all had in store. In the shadow of the digital Buddha are the countless wise. To bring you inspiration that you cannot buy. To lift our generation to the highest high. |
Anonymous Coward User ID: 78532619 United States 07/07/2020 10:32 PM Report Abusive Post Report Copyright Violation | Re: Magnetic excursion reversal can occur within a decade Only the strong will survive. Sucks to be a libtard... |
Anonymous Coward User ID: 79121978 United States 07/07/2020 10:41 PM Report Abusive Post Report Copyright Violation | Re: Magnetic excursion reversal can occur within a decade
We have to keep in mind that models are as good as the data available to input. Current field strength has decreased by 18% since 1859 when the Carrington event kicked off the excursion.
Quoting: Digital Buddha Yes but no |