Climate Dynamics: Why Does Climate Vary? (Geophysical Monograph Series)

Geophysical Monograph Series

Contents:

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  • Earth and Climate
  • Why Does Climate Vary?

    • Climate Dynamics!
    • Climate Dynamics - Why Does Climate Vary? (Electronic book text, 1st edition).
    • Jessica Zaiss, PhD exp 2019.
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    Mechanisms, Patterns, and Impacts. American Geophysical Union, Rial JA , Saha R.

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    Geophysical Monograph Series; 1. AU - Saha, R.

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    Checkout Your Cart Price. Climate Significance and Environmental Impact, J. Content on this site is licensed under a Creative Commons License. Brady, and Mark Wehrenberg On each topic, the basic material of climate dynamics is covered to aid the understanding of the forefront research, making the volume accessible to a broad spectrum of readers. Rial JA , Saha R. PY - Y1 - N2 - The Dansgaard-Oeschger D-O temperature fluctuations of the last ice age are a prime example of abrupt climate change in the paleoclimate record, and they provide evidence that rapid climate change warming as well as cooling can occur within human time scales, making their study highly relevant to the assessment of present and future natural climate variability.

    PY - Y1 - N2 - The Dansgaard-Oeschger D-O temperature fluctuations of the last ice age are a prime example of abrupt climate change in the paleoclimate record, and they provide evidence that rapid climate change warming as well as cooling can occur within human time scales, making their study highly relevant to the assessment of present and future natural climate variability. Access to Document Note the bubbles streaming from the seafloor.

    Earth and Climate

    These are bubbles of liquid CO 2. The liquid CO 2 and CO 2 -rich fluids are produced at hydrothermal centers where CO 2 released at depth migrates upwards through the structural conduits where it reacts with water. The figure above shows how liquid CO 2 -rich fluids are thought to be accumulating in the sediments that blanket the vents Lupton et al, Click on the video image from Inagaki et al.

    When the hydrate cap is punctured the bouyant liquid CO 2 is released to the overlying water column. Note that there appears to be late glacial excursion that preceded the deglacial excursions.

    Why Does Climate Vary?

    The timing of the late glacial excursion corresponds closely with the timing of Heinrich Event 2 in the Atlantic. Similarly, the deglacial excursions coincided in time with Heinrich Event 1 and the Younger Dryas. The reduced NADW shifts heat to the southern hemisphere where it is entrained in intermediate waters that flow towards the equator in the Pacific.

    We hypothesize that as the ocean cooled during glaciations CO 2 -hydrate stability expanded upward to shallower depths and over a broader region of the sea floor, reducing the flux of 14 C-depleted CO 2 into the ocean from sediment reservoirs that blanket active vents throughout the ocean. Conversely, as the oceans warmed during deglaciation, the CO 2 -hydrate stability horizon deepened and caused a transient release of stored 14 C-depleted CO 2 from the sediment reservoirs.

    If correct, this hypothesis implies a total carbon flux from hydrothermal systems significantly larger than is currently estimated.

    Figure above shows the phase stability for CO 2 in the modern ocean. During the last glacial maximum the stabiliy of hydrate would have been as much as m shallower and thereby greatly expanded throughout the shallow, intermediate depth ocean.

    In Studio with David Archer: Climate Change and the Paris Summit

    These phenomena include deep convection over the Indo-Pacific warm pool and its planetary-scale organization: The volume also has a chapter focusing on the discussion of the causes of the recent melting of Arctic sea ice and a chapter devoted to the discussion of the causes of recent changes in the frequency and intensity of tropical cyclones.

    On each topic, the basic material of climate dynamics is covered to aid the understanding of the forefront research, making the volume accessible to a broad spectrum of readers.

    The volume highlights includeDiabatic and nonlinear aspects of the El Nino-Southern OscillationCauses of sea ice melting in the ArcticImpact of global warming on tropical cyclone activityOrigins of the Pacific Decadal OscillationCauses of climate variability of Asian monsoons The volume will be of particular interest to graduate students and young researchers in atmospheric and oceanic sciences and related disciplines such as geology and geography. Electronic book text Pages: Review This Product No reviews yet - be the first to create one!

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