Collaborative Research: Investigating Biogeochemical Fluxes and Linkages To Climate Change With Multi-Scale Observations In The Drake Passage

合作研究：通过德雷克海峡的多尺度观测研究生物地球化学通量及其与气候变化的联系

基本信息

批准号：
1543511
负责人：
Britton Stephens
金额：
$ 9.98万
依托单位：
University Corporation For Atmospheric Res
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2016
资助国家：
美国
起止时间：
2016-09-01 至 2019-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1543511&HistoricalAwards=false
关键词：
Collaborative Research Investigating Biogeochemical Fluxes

项目摘要

The Southern Ocean plays a key role in modulating the global carbon cycle, but the size and even the sign of the global ocean flux terms of the atmospheric burden of man-made CO2 are still uncertain. This is in part due to the lack of measurements in this remote region of the world ocean. This project continues a multi-year time series of shipboard chemical measurements in the Drake Passage to detect changes in the ocean carbon cycle and to improve the understanding of mechanisms driving natural variability and long-term change in the Southern Ocean.This project is a continuation of collection of upper ocean measurements of the underway surface partial pressure of carbon dioxide (pCO2), using frequent ferry crossings of the Drake Passage by the RV/AS LMGould, the USAP supply ship. Overall, more than 200 transects over the past decade (since 2002) have now been accumulated of pCO2 profiles, along with discrete samples for other parameters of interest in studying the ocean carbonate system such as total CO2 (TCO2) values, isotopic (13C/12C and 14C/12C) ratios in surface TCO2. The Drake Passage data are made readily available to the international science community and serve as both validation and constraints of remotely sensed observations and numerical coupled earth systems models.

南方海洋在调节全球碳循环中起着关键作用，但是人造二氧化碳大气负担的大小甚至是全球海洋通量术语的迹象仍然不确定。这部分是由于世界海洋偏远地区缺乏测量。该项目继续在Drake通道中进行多年的船上化学测量时间序列，以检测海洋碳循环的变化，并提高人们对南部海洋自然变异性和长期变化的理解。该项目是通过使用Drake dioxide（PCO2）的频率越过的频率越过的频率交叉行为来延续收集上海上海洋的上海测量值，该项目是通过drake offern of fly friend friend frield frield frield friend frield pass的收集。供应船。总体而言，在过去的十年中（自2002年以来）有200多个样带（自2002年以来）累积了PCO2概况，以及用于研究海洋碳酸盐系统（例如Total CO2（TCO2）值，同位素（13C/12C和14C/14C/12C）的其他感兴趣的参数）。 Drake Passage数据可容易地提供给国际科学界，并既是远程感知的观察结果和数值耦合的地球系统模型的验证和约束。