Insights into particle cycling from thorium and particle data.
Insights into particle cycling from thorium and particle data.
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从钍和粒子数据洞察粒子循环。
DOI：
10.1146/annurev-marine-010814-015623
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发表时间：
2015
影响因子：
17.3
通讯作者：
O. Marchal
中科院分区：
文献类型：
--
作者：
P. Lam;O. Marchal
海洋颗粒是海洋中的生物碳泵将碳从大气转移到深海的主要载体。海洋颗粒以连续的大小范围存在，但它们可以在功能上分为小的悬浮类(构成总颗粒质量的大部分)和大的下沉类(贡献大部分颗粒通量)。这两类通过聚合和解聚过程连接在一起。产生、聚集和摧毁海洋颗粒的过程的相互作用决定了生物泵的强度和传输效率。对悬浮和下沉颗粒的放射性碳、钡和有机生物标记物的测量提供了对颗粒动力学的定性见解，而对钍同位素的测量提供了速率的定量估计。在这里，我们回顾了迄今为止从悬浮物和沉降物的化学测量中了解到的海洋中的颗粒动力学。然后，我们讨论这种方法的未来方向。
Marine particles are a main vector by which the biological carbon pump in the ocean transfers carbon from the atmosphere to the deep ocean. Marine particles exist in a continuous spectrum of sizes, but they can be functionally grouped into a small, suspended class (which constitutes most of the total particle mass) and a large, sinking class (which contributes most of the particle flux). These two classes are connected by aggregation and disaggregation processes. The interplay of processes that create, aggregate, and destroy marine particles determines the strength and transfer efficiency of the biological pump. Measurements of radiocarbon, barium, and organic biomarkers on suspended and sinking particles have provided qualitative insights into particle dynamics, and measurements of thorium isotopes have provided quantitative estimates of rates. Here, we review what has been learned so far about particle dynamics in the ocean from chemical measurements on suspended and sinking particles. We then discuss future directions for this approach.
影响因子：
4.9
作者：
Iversen, M. H.;Ploug, H.
通讯作者：
Ploug, H.
DOI：
10.1016/j.dsr.2012.12.002
发表时间：
2013-03-01
影响因子：
2.4
作者：
Dammshaeuser, Anna;Wagener, Thibaut;Croot, Peter
通讯作者：
Croot, Peter