Global database of surface ocean particulate organic carbon export fluxes diagnosed from the 234Th technique
Global database of surface ocean particulate organic carbon export fluxes diagnosed from the 234Th technique
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DOI：
10.5194/essd-5-295-2013
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发表时间：
2013-01-01
影响因子：
11.4
通讯作者：
Madsen, E.
中科院分区：
文献类型：
--
作者：
Le Moigne, F. A. C.;Henson, S. A.;Madsen, E.
海洋生物碳泵是全球碳循环的一个重要因素。有机碳主要以海洋上层浮游生物产生的沉降颗粒的形式从表层海洋输出。目前对全球生物碳泵强度的估计存在很大的可变性，这强调了我们对主要的行星碳通量的认识仍然很有限。我们提出了一个基于Th-234技术的723个海洋表层有机碳输出估计的数据库。数据集存档在数据存储库PANGEA (R) （www.pangea.de）上，doi: 10.1594/PANGAEA.809717。数据收集自1985年至2013年初发表的论文中的表格。我们还提供了抽样日期、出版日期和抽样区域。大多数公海省份都是用多次测量来表示的。然而，西太平洋、大西洋北极、南太平洋和南印度洋的代表性不足。整合深度从地表到300米不等。全球通量范围为0至1500 mg cm (-2) d（-1）。
The oceanic biological carbon pump is an important factor in the global carbon cycle. Organic carbon is exported from the surface ocean mainly in the form of settling particles derived from plankton production in the upper layers of the ocean. The large variability in current estimates of the global strength of the biological carbon pump emphasises that our knowledge of a major planetary carbon flux remains poorly constrained. We present a database of 723 estimates of organic carbon export from the surface ocean derived from the Th-234 technique. The dataset is archived on the data repository PANGEA (R) (www.pangea.de) under doi: 10.1594/PANGAEA.809717. Data were collected from tables in papers published between 1985 and early 2013. We also present sampling dates, publication dates and sampling areas. Most of the open ocean provinces are represented by multiple measurements. However, the western Pacific, the Atlantic Arctic, South Pacific and the southern Indian Ocean are not well represented. There is a variety of integration depths ranging from surface to 300 m. Globally the fluxes ranged from 0 to 1500 mg C m(-2) d(-1).