Biogenic and lithogenic particle fluxes in the western region of the Sea of Okhotsk: Implications for lateral material transport and biological productivity
Biogenic and lithogenic particle fluxes in the western region of the Sea of Okhotsk: Implications for lateral material transport and biological productivity
复制标题
鄂霍次克海西部地区的生物和成石颗粒通量：对横向物质输送和生物生产力的影响
DOI：
10.1029/2003jc001908
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发表时间：
2004
影响因子：
--
通讯作者：
M. Wakatsuchi
中科院分区：
文献类型：
--
作者：
T. Nakatsuka;T. Fujimune;C. Yoshikawa;S. Noriki;K. Kawamura;Y. Fukamachi;G. Mizuta;M. Wakatsuchi
[1] 对鄂霍次克海西部地区库页岛附近两个地点的两个深度收集的沉降颗粒进行了分析，以确定其主要化学成分（成石物质、生物蛋白石、碳酸钙 (CaCO3) 和总有机碳 (TOC)）。成岩通量和蛋白石通量向下增加，表明重悬浮沉积颗粒横向输入到下部圈闭中，而CaCO3或TOC通量在上部圈闭和下部圈闭之间变化不大。下部圈闭中的成岩颗粒通量在冷水团渗透到系泊点中间层期间频繁出现间歇性增加事件。这种通量增加与中间层冷却的一致清楚地表明，冷而浑浊的稠密陆架水（DSW）从西北大陆架底部排放到远洋中间层，向斜坡底部和深盆提供大量颗粒物。消除横向输入的影响后，使用上部陷阱数据重建了系泊地点地表水中蛋白石输出的时间序列。萨哈林岛附近地区的蛋白石出口量几乎与硅藻产量相同，其季节性变化有两个主要特征。一是秋季蛋白石通量相对较大，二是春季硅藻华向南扩散，尽管每年春季海冰都会向北退缩。这两个特征表明，从阿穆尔河排出的河水与季节性海冰覆盖一起调节了该地区的初级生产。
[1] Sinking particles collected at two depths at two sites off Sakhalin Island in the western region of the Sea of Okhotsk were analyzed to determine their major chemical components (lithogenic material, biogenic opal, calcium carbonate (CaCO3), and total organic carbon (TOC)). The lithogenic and opal fluxes increased downward, indicating the lateral input of resuspended sedimentary particles into the lower traps, while the CaCO3 or TOC fluxes did not change greatly between the upper and lower traps. The lithogenic particle flux in the lower traps showed intermittent increase events frequently during periods when cold water masses penetrated into the intermediate layer at the mooring sites. This coincidence between the flux increase and the cooling of the intermediate layer clearly indicates that the cold and turbid Dense Shelf Water (DSW) is discharged from the bottom of the northwestern continental shelf to the pelagic intermediate layer, supplying large amounts of particulate matter onto the bottom of the slope and deep basin. After removing the effect of the lateral input, the time series of the opal export from the surface water at the mooring sites were reconstructed using the upper trap data. There were two predominant characteristics in the seasonal variations of the opal export, which is nearly equal to the diatom production, in the area off Sakhalin. One is the relatively large opal flux in autumn, and the other is the southward propagation of the spring diatom bloom, although the sea ice retreats northward every spring. Both of these characteristics suggest that the river water discharged from the Amur, together with the seasonal sea ice cover, regulates primary production in this area.
影响因子：
5.2
作者：
Uematsu, M;Wang, ZF;Uno, I
通讯作者：
Uno, I
鄂霍次克海库页岛附近长期停泊揭示的密集陆架水的运输和改造过程
DOI：
--
发表时间：
2004
期刊：
J.Geophys.Res. 109
影响因子：
--
作者：
Fukamachi;Y.;M.Wakatsuchi
通讯作者：
M.Wakatsuchi
DOI：
--
发表时间：
2003
期刊：
Journal of Physical Oceanography 33(11)
影响因子：
--
作者：
Mizuta;G.;K.I.Ohshima;Y.Fukamachi;M.Wakatsuchi
通讯作者：
M.Wakatsuchi