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Ocean Heat Content Calculation Impro...

Boyer, Timothy Paul,

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Ocean Heat Content Calculation Improvements for Earth's Energy Imbalance Quantification /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Ocean Heat Content Calculation Improvements for Earth's Energy Imbalance Quantification // Timothy Paul Boyer.
Author:	Boyer, Timothy Paul,
Description:	1 electronic resource (288 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
Contained By:	Dissertations Abstracts International86-03B.
Subject:	Physical oceanography. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31328814
ISBN:	9798384423324

Ocean Heat Content Calculation Improvements for Earth's Energy Imbalance Quantification /
Boyer, Timothy Paul,

Ocean Heat Content Calculation Improvements for Earth's Energy Imbalance Quantification /Timothy Paul Boyer. - 1 electronic resource (288 pages)

Source: Dissertations Abstracts International, Volume: 86-03, Section: B.

Earth's Energy Imbalance, the difference between incoming and outgoing radiation at the top of the atmosphere, is stored in the atmosphere, land surface, cryosphere, and ocean, but is stored overwhelmingly (~90%) in the ocean on interannual and longer time scales. This imbalance, which is reflected in ocean heat uptake, is a primary indicator of the magnitude of change in energy the Earth's system as well as an essential variable for understanding short-term variations and their effects on long-term regional and global climate change. The primary methods for calculating ocean heat content all depend on situ measurements of ocean subsurface temperature. The ocean subsurface temperature observing system as it is currently configured, with a substantial but not exclusive contribution from autonomous Argo profiling floats, is shown here to allow estimation of annual global ocean heat uptake with an uncertainty well below that possible with earlier ocean observing systems. It is also shown that maintenance and improvement of a global best quality ocean temperature profile database will lower uncertainty, both historically and for the current observing system and compensate to some extent for areas of sparse data in both direct calculation from observation and in data assimilation models. It is also shown that improvements to the methods used for mapping the inhomogeneous and anisotropic observations onto a regular grid spanning the global ocean will reduce uncertainty historically, currently, and into the future. On shorter monthly timescales regional changes in the Earth's Energy Imbalance requires tracking the storage within the atmosphere, land, and cryosphere, and the heat transport within the ocean especially to depths where the energy is stored on longer time scales, in addition to ocean heat uptake. Monthly heat uptake estimates discussed here can be utilized with additional terms from atmosphere/land and ocean/sea ice reanalyses to provide Earth's Energy Imbalance estimates on these shorter time-scales in the future.

English

ISBN: 9798384423324Subjects--Topical Terms:

3168433
Physical oceanography.
Subjects--Index Terms:

Earth's Energy Imbalance

Ocean Heat Content Calculation Improvements for Earth's Energy Imbalance Quantification /
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100 1 $a Boyer, Timothy Paul, $e author. $3 3816879
245 1 0 $a Ocean Heat Content Calculation Improvements for Earth's Energy Imbalance Quantification / $c Timothy Paul Boyer.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2024
300 $a 1 electronic resource (288 pages)
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500 $a Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
500 $a Advisors: Carton, James Committee members: Grodsky, Semyon; Lathrop, Daniel; Nigam, Sumant; Wenegrat, Jacob; Zeng, Ning.
502 $b Ph.D. $c University of Maryland, College Park $d 2024.
520 $a Earth's Energy Imbalance, the difference between incoming and outgoing radiation at the top of the atmosphere, is stored in the atmosphere, land surface, cryosphere, and ocean, but is stored overwhelmingly (~90%) in the ocean on interannual and longer time scales. This imbalance, which is reflected in ocean heat uptake, is a primary indicator of the magnitude of change in energy the Earth's system as well as an essential variable for understanding short-term variations and their effects on long-term regional and global climate change. The primary methods for calculating ocean heat content all depend on situ measurements of ocean subsurface temperature. The ocean subsurface temperature observing system as it is currently configured, with a substantial but not exclusive contribution from autonomous Argo profiling floats, is shown here to allow estimation of annual global ocean heat uptake with an uncertainty well below that possible with earlier ocean observing systems. It is also shown that maintenance and improvement of a global best quality ocean temperature profile database will lower uncertainty, both historically and for the current observing system and compensate to some extent for areas of sparse data in both direct calculation from observation and in data assimilation models. It is also shown that improvements to the methods used for mapping the inhomogeneous and anisotropic observations onto a regular grid spanning the global ocean will reduce uncertainty historically, currently, and into the future. On shorter monthly timescales regional changes in the Earth's Energy Imbalance requires tracking the storage within the atmosphere, land, and cryosphere, and the heat transport within the ocean especially to depths where the energy is stored on longer time scales, in addition to ocean heat uptake. Monthly heat uptake estimates discussed here can be utilized with additional terms from atmosphere/land and ocean/sea ice reanalyses to provide Earth's Energy Imbalance estimates on these shorter time-scales in the future.
546 $a English
590 $a School code: 0117
650 4 $a Physical oceanography. $3 3168433
650 4 $a Geophysics. $3 535228
650 4 $a Ocean engineering. $3 660731
653 $a Earth's Energy Imbalance
653 $a Ocean heat uptake
653 $a Anisotropic observations
690 $a 0415
690 $a 0547
690 $a 0373
710 2 $a University of Maryland, College Park. $b Atmospheric and Oceanic Sciences. $e degree granting institution. $3 3816880
720 1 $a Carton, James $e degree supervisor.
773 0 $t Dissertations Abstracts International $g 86-03B.
790 $a 0117
791 $a Ph.D.
792 $a 2024
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31328814