Sentences with phrase «iron fertilization forcing»

Comparison with data and data - based reconstructions over the last glacial cycle of a model simulation for combined dust radiative and iron fertilization forcing.

This allows us to scale the two records by their respective interglacial levels, combine them to better resolve the Southern Ocean, and use the combined record as our proxy for glacial / interglacial iron fertilization forcing.

We also made combined radiative and iron fertilization forcing simulations over the last three glacial cycles (Figs.

Since dust radiative and iron fertilization forcing are mainly concentrated in the NH and the SH, respectively, we use respective NH and SH temperature time series for this.

We use the above dust deposition − temperature relationships to derive climate dependencies of dust radiative and iron fertilization forcing under the assumption that both forcings vary in proportion to the dust deposition, and can therefore be expressed in the same form as Eq.

Here we took a different approach by seeking and applying dust deposition observations from hotspots for dust radiative and iron fertilization forcing: NH subtropical latitudes and the Southern Ocean.

1 to bin means and medians using an alternative low - passed filtered, Greenland temperature anomaly time series (SI Materials and Methods) and application of that time series to construct alternative radiative forcing time series, (iv) radiative forcing calculated for 50 % decrease / increase compared with our standard LGM value (RFLGM = − 0.5 and − 1.5 W ⋅ m − 2), and (v) iron fertilization forcing calculated for 50 % decrease / increase of the difference between standard LGM and present - day values (IFLGM = 0.43 and 0.57).

For iron fertilization forcing, we choose temperature − dust relationships from the high southern latitudes, as the Southern Ocean is the main region where this process is relevant.

We carried out a number of DCESS model simulations over the last three glacial cycles using the dust radiative and / or iron fertilization forcings shown in Fig. 4 and Fig.

This is how the model deals with iron fertilization strength in the Southern Ocean (SO; see Dust Radiative and Iron Fertilization Forcings).

Not exact matches

From these relationships and reconstructed temperature time series, we diagnose glacial − interglacial time series of dust radiative forcing and iron fertilization of ocean biota, and use these time series to force Earth system model simulations.

Shown are (A) dust radiative forcing (RF) anomaly relative to preindustrial and (B) iron fertilization parameter (IF) for ocean new production in the DCESS model (41) high - latitude zone.

However, some of the cooling stems from decreased atmospheric greenhouse gas forcing from iron fertilization - induced pCO2 drawdown (red line in Fig.