Sentences with phrase «oceanic uptake»

A first carbon cycle assessment was performed through an international model and analysis workshop examining terrestrial and oceanic uptake to better quantify the relationship between CO2 emissions and the resulting increase in atmospheric abundance.

Predictions concerning the consequences of the oceanic uptake of increasing atmospheric carbon dioxide (CO2) have been primarily occupied with the effects of ocean acidification on calcifying organisms, particularly those critical to the formation of habitats (e.g. coral reefs) or their maintenance (e.g. grazing echinoderms).

The radiative forcing would then seem to be 2.163 times the primary energy (and then less if you have oceanic uptake, etc.), except that the ratio has a unit, per year.

The net terrestial ecosystem impact is not much more relevant to the issue than the fact that the net of oceanic uptake and fossil fuel impact is also small.

On the other hand, the existing air - sea flux measurements do not support the idea of a large oceanic uptake of CO2 in the Northern Hemisphere (Tans et al., 1990; Takahashi, 1999).

While there is some influence of differences in forcing patterns among the scenarios, and of effects of oceanic uptake and heat transport in modifying the patterns over time, there is also support for the role of atmospheric heat transport in offsetting such influences (e.g., Boer and Yu, 2003b; Watterson and Dix, 2005).

These sections discuss the oceanic uptake of CO2 (and 14C) and contain a number of side - boxes in which analytical solutions to simple box models are provided that clarify the key concepts and factors.

The diverse pattern of poorly understood biotic responses to ocean acidification found thus far makes it problematic to reliably predict the ecological and biogeochemical changes that will result from continued oceanic uptake of anthropogenic CO2.

The oceanic uptake of anthropogenic CO2 leads to a gradual acidification of the ocean.

These rising atmospheric greenhouse gas concentrations have led to an increase in global average temperatures of ~ 0.2 °C decade — 1, much of which has been absorbed by the oceans, whilst the oceanic uptake of atmospheric CO2 has led to major changes in surface ocean pH (Levitus et al., 2000, 2005; Feely et al., 2008; Hoegh - Guldberg and Bruno, 2010; Mora et al., 2013; Roemmich et al., 2015).

Not exact matches

The cause of this recent increase in oceanic CO2 uptake, which has implications for climate change, has been a mystery.

«As the circulation changed from decade to decade — 1980s to 1990s to 2000s — the model predicted a big dip in oceanic CO2 uptake during the 1990s, then a large increase in uptake during the 2000s,» DeVries explained.

University of Rhode Island Estimates of contemporary global air - sea carbon dioxide (CO2) flux (Takahashi et al. 2009; Landschützer et al. 2014) suggest that subtropical western boundary currents (WBCs) and their zonal extensions are key regions of oceanic carbon uptake (Figure 1a).

But I am puzzled by your comment on oceanic carbon uptake, because this issue has no bearing on the question.

Ongoing measurements of anthropogenic CO2, other gases and hydrographic parameters in these key marginal seas will provide information on changes in global oceanic CO2 uptake associated with the predicted increasing atmospheric CO2 and future global climate change.

[8]-RRB-, it is inferred that as much as 7.5 % of global oceanic CO2 uptake may occur in the Arctic Ocean, which comprises only 3.9 % of the global ocean's surface.

When the oceans begin to slow the rate of CO2 uptake at saturation point that will futher push atmospheric CO2 even higher, simultaneously the massive amounts of additional CO2 and methane and nitrous oxide etc released from the decay and oxidisation of oceanic living creatures who can not survive in a low ph environment will future ram the nail in the coffin.

Warming of the oceans leads to increased vertical stratification (decreased mixing between the different levels in the oceans), which would reduce CO2 uptake, in effect, reducing the oceanic volume available to CO2 absorption from the atmosphere.

Many of these studies support the hypothesis that coral reefs will suffer from increased oceanic CO2 uptake.

Increases in CO2 are AUTOMATICALLY countered by increases in CO2 uptake, whether that is via land plants or oceanic life, or the oceans themselves.

where is the vertically integrated energy flux in the atmosphere, is the net radiative energy input to an atmospheric column (the difference between absorbed shortwave radiation and emitted longwave radiation), and is the oceanic energy uptake at the surface.

The net atmospheric energy input near the equator is the small residual (~ 20 W m2) of large cancellations between absorbed shortwave radiation (~ 320 W m2), emitted longwave radiation (~ 250 W m2), and oceanic energy uptake (~ 50 W m2).

Is oceanic wind speed also the causal mechanism underlying ENSO variation of heat and CO2 uptake?

Nothing would happen with the total quantity of CO2 (whatever type) if still Rin = Rout, but that is not the case: the increase of total CO2 in the atmosphere increases the uptake by oceans and vegetation and decreases the oceanic degassing.

While the specifics of the calculations of heat uptake over the past half century continue to be refined, the sign of the heat uptake, averaged over this period, seems secure — I am not aware of any published estimates that show the oceanic heat content decreasing, on average, over these 50 years.

Thus it is equivalent of 9 — 17 years worth of cumulative oceanic carbon uptake at the current uptake rate.

Impacts of large - scale and persistent changes in the MOC are likely to include changes to marine ecosystem productivity, fisheries, ocean carbon dioxide uptake, oceanic oxygen concentrations and terrestrial vegetation [Working Group I Fourth Assessment 10.3, 10.7; Working Group II Fourth Assessment 12.6, 19.3].

He notes that the high end is driven by uncertainties in the oceanic heat uptake data earlier in the record.

The probabilistic analyses of DAI reported in this section draw substantially on (subjective) Bayesian probabilities to describe key uncertainties in the climate system, such as climate sensitivity, the rate of oceanic heat uptake, current radiative forcing, and indirect aerosol forcing.

... but also, in the process of doubling CO2, the first CO2 added does nearly twice as much to climate as the last CO2... on the other hand, if the rate of oceanic + other uptake changes...

Long, M. C., Lindsay, K., Peacock, S., Moore, J. K. & Doney, S. C. Twentieth - century oceanic carbon uptake and storage in CESM1 (BGC).

The relationship between the effective climate sensitivity and the oceanic heat uptake was first described by Hansen et al. (1984, 1985) using a box diffusion model.

Details of the individual model s sub-grid scale parametrizations also affect both the effective climate sensitivity and the oceanic heat uptake (Weaver and Wiebe, 1999).

Models differ considerably in their estimates of the strength of different feedbacks in the climate system, particularly cloud feedbacks, oceanic heat uptake and carbon cycle feedbacks, although progress has been made in these areas.

The abstract reads (my boldface): Estimated values of recent oceanic heat uptake are of order of a few tenths of a W / m2, and...

The Southern Ocean plays a dominant role in anthropogenic oceanic heat uptake.

One major problem with both F&R as well as K. et al is that they fail to adjust the IPCC's emissions scenarios for the associated variability of uptakes of atmospheric CO2 by the world's oceanic and terrestrial Biota; as I have shown (Curtin 2009 at my website), along with Knorr (2009), the more the emissions, the greater the biotic uptake, pace IPCC.