Investigations of the Marine Organic Carbon Cycle in the North Atlantic Ocean

要求提供资金，以调查北大西洋主要有机和无机碳库中的放射性碳和稳定碳同位素比率以及各种其他化学性质。在马尾藻海百慕大附近S站附近的一个地点，将对溶解有机碳和无机碳（DOC和DIC）的详细剖面进行测量。此外，还将测量DOC中特定有机组分（腐殖质和不稳定组分）的放射性碳和稳定碳同位素比值。在同一地点收集10个深度的悬浮颗粒有机碳（POC）和3个深度（1000、2600和3600米）的下沉POC。这个项目的目标是制定碳在北大西洋开放海洋水体中的路径，并将这些结果与之前在北太平洋获得的结果进行比较。特别是确定DOC循环的来源和时间常数，特别是与水柱中沉积有机碳（SOC）和POC有关的来源和时间常数。该项目的目标与全球海洋通量研究（GOFS）的目标直接相关。

Funds are requested for the investigation of radiocarbon and stable carbon isotope ratios and various other chemical properties in the major organic and inorganic carbon pools in the North Atlantic Ocean. Measurements will be made of dissolved organic and inorganic carbon (DOC and DIC) in a detailed profile collected at a site near Station S off Bermuda in the Sargasso Sea. In addition, the radiocarbon and stable carbon isotope ratios in specific organic components of the DOC (humic and labile constituents) will be measured. Suspended particulate organic carbon (POC) will be collected from 10 depth and sinking POC from 3 depth (1000, 2600 and 3600 meters at the same site. The goals of this project are to formulate the pathways that carbon follows in the open ocean water column of the North Atlantic, and to compare these results with those obtained earlier for the North Pacific. In particular, there is interest in determining the sources and time constants involved in the cycling of DOC, especially those which involves sedimentary organic carbon (SOC) and POC in the water column. The goals of this project is directly related to those of the Global Ocean Flux Study (GOFS).