REU: GOFS North Atlantic Bloom: Level 1 DOC/DON, POC/PON Studies

GOFS东北大西洋春季开花实验 将对初级生产率进行测量， 4月和7月样带的POC/PON和DOC/DON浓度 游轮. 还将提供后勤支助， 将部署的自由漂浮颗粒捕集器阵列， 在Sta康复了三次。47（持续覆盖将 大约100天，4月10日至7月25日）。 这方面的努力大部分集中在溶解有机碳上 （DOC）。 背景资料表明， 海洋DOC库（1，000 Gt）的大小与 大气CO2（-700 Gt），陆生植物（560 Gt） 和土壤腐殖质（1500 Gt）库。 考虑到 这个游泳池，鲜为人知。 例如，这个水库 似乎足够大，可以轻松容纳-170 Gt的 在最近的冰川高峰期从大气中吸收的碳; 也许它也代表了一个储存库， 目前被隔离 然而，尽管 DOC在全球碳循环中的潜在重要性，只有两个 外国科学家目前似乎有能力 精确测量。 因此，总体目标是：（1）完善DOC分析 （2）测量季节性DOC库存沿着200 西样带;（3）将这些水平与C 02、02变化联系起来;（4） 测量与浮游植物相关的DOC形成速率 生长和衰老;（5）将这些发现与 涉及海洋POC循环各个方面的补充研究。

In support of the GOFS Northeast Atlantic Spring Bloom Experiment measurements will be made of primary productivity rates, and POC/PON and DOC/DON concentrations on the April and July transect cruises. Also logistical support will be provided for free-floating particle trap arrays that will be deployed and recovered three times at Sta. 47 (continuous coverage will be provided for approximately 100 days, April 10-July 25). Much of this effort concentrates on dissolved organic carbon (DOC). Background information is presented indicating that the oceanic DOC pool (1,000 Gt) is about the same size as the atmospheric CO2 (-700 Gt), terrestrial living plant (560 Gt) and soil humus (1500 Gt) reservoirs. Considering the size of this pool, little is known. For example, this reservoir appears to be large enough to easily accommodate the -170 Gt of C withdrawn from the atmosphere during recent glacial maxima; perhaps it also represents a repository where anthropogenic CO2 is currently sequestered. Nevertheless, in spite of the potential importance of DOC in the global carbon cycle, only two foreign scientists appear to have the current capability for accurate measurement. Thus the overall objectives are to : (1) refine DOC analytical procedures; (2) measure seasonal DOC inventories along the 200 West transect; (3) relate these levels to C02, 02 changes; (4) measure rates of DOC formation in association with phytoplankton growth and senescence; and (5) relate these findings to complementary studies involving aspects of the oceanic POC cycle.