Atmospheric consequences of disruption of the ocean thermocline

Video thumbnail (Frame 0) Video thumbnail (Frame 76) Video thumbnail (Frame 1446) Video thumbnail (Frame 1534) Video thumbnail (Frame 1914) Video thumbnail (Frame 2417) Video thumbnail (Frame 3005)
Video in TIB AV-Portal: Atmospheric consequences of disruption of the ocean thermocline

Formal Metadata

Title
Atmospheric consequences of disruption of the ocean thermocline
Title of Series
Author
License
CC Attribution 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
Publisher
Release Date
2015
Language
English

Content Metadata

Subject Area
Abstract
Technologies utilizing vertical ocean pipes have been proposed as a means to avoid global warming, either by providing a source of clean energy, increasing ocean carbon uptake, or storing thermal energy in the deep ocean. However, increased vertical transport of water has the capacity to drastically alter the ocean thermocline. To help bound potential climate consequences of these activities, we perform a set of simulations involving idealized disruption of the ocean thermocline by greatly increasing vertical mixing in the upper ocean. We use an Earth System Model (ESM) to evaluate the likely thermal and hydrological response of the atmosphere to this scenario. In our model, increased vertical transport in the upper ocean decreases upward shortwave and longwave radiation at the top-of-the-atmosphere due primarily to loss of clouds and sea-ice over the ocean. This extreme scenario causes an effective radiative forcing of ≈15.5–15.9 W m−2, with simulations behaving on multi-decadal time scales as if they are approaching an equilibrium temperature ≈8.6–8.8 °C higher than controls. Within a century, this produces higher global mean surface temperatures than would have occurred in the absence of increased vertical ocean transport. In our simulations, disruption of the thermocline strongly cools the lower atmosphere over the ocean, resulting in high pressure anomalies. The greater land-sea pressure contrast is found to increase water vapour transport from ocean to land in the lower atmosphere and therefore increase global mean precipitation minus evaporation (P–E) over land; however, many high latitude regions and some low latitude regions experience decreased P–E. Any real implementation of ocean pipe technologies would damage the thermal structure of the ocean to a lesser extent than simulated here; nevertheless, our simulations indicate the likely sign and character of unintended atmospheric consequences of such ocean technologies. Prolonged application of ocean pipe technologies, rather than avoiding global warming, could exacerbate long-term warming of the climate system.

Related Material

Video is accompanying material for the following resource
Video Electric power distribution
Impact event Cooling tower Air cooling Piping Stellar atmosphere Global warming Ventilation (architecture) Climate Vertical integration Source (album) Thermal energy Mixing (process engineering) Climate change Model building LEAR <Physik> Renewable energy
Prozessleittechnik Effects unit Formation flying Air cooling Buick Century Stellar atmosphere Wolkengattung Global warming Mixing (process engineering) Cogeneration Radiation Temperature Flight simulator LEAR <Physik> Radiation
Prozessleittechnik Separation process Video Alcohol proof Global warming Flight simulator Thermodynamic equilibrium Pair production Ground (electricity)
technologies that utilize vertical motion pipes been proposed as a means of helping avoid dangerous climate change either by increasing ocean carbon uptake as a source of renewable energy remains the sole thermal energy in the deep ocean studies today has shown that those commotion pipes would have limited impact 1 ocean carbon uptake but we really don't understand the atmospheric consequences of that's pollution pipes in particular how they might affect atmospheric temperatures and hydrology we seek to answer these questions using a global climate model by increasing vertical ocean mixing in the upper ocean layers we assess how atmospheric temperatures in hydrology which the impact in a highly idealized scenario what our studies show is alone ventilation
pipes I have a large initial cooling
effects on its surface temperatures over time as the net warming but within a century we see temperatures are higher than they would have been if these mixing processes had never been introduced Our simulations show that
by affecting the formation of clouds and the prevalence of CIS increase ocean mixing in the operation and have a very large effect of radiative forcing without having any direct effect on the top of the atmosphere radiative about in our
simulations the earth behaves as if it's approaching an equilibrium temperatures several degrees warmer than it would have been happy is increased vertical ocean mixing processes never been introduced Our study shows that rather than helping to mitigate global warming the 1st creation hikes could actually exacerbate if you like to kind of 6 and so on and so on and
on and on the roof of your system is the 1 that opened the door open and all the time of the
Feedback