CFC Measurements along 26N and CFC and Carbon Measurements at the Western Boundary

0351421这是一项在2004年冬季对英国北纬26度断面上的氯氟烃(CFC-11、CFC-12、CFC-113)进行测量的建议。其目标是提供高质量的数据集，并按照全球重复计划的要求几乎立即向社区提供这些数据。该计划支持CLIVAR(气候可变性和可预测性)和国际碳循环计划，是物理气候/二氧化碳系统全球观测系统的组成部分。这些数据将有助于记录和理解通风和海洋碳随时间的变化。拟议测量的智力价值在于，它们将有助于全球重复计划的目标：模型校准和验证、碳系统研究、自主传感器的校准以及深水和浅水质量和通风研究的数据。此外，在2004年占领26N横断面的基础上增加了氟氯化碳测量，将填补一个地区的空白，该地区的氟氯化碳库存相对较大，西部的整个水柱都在迅速增加。拟议测量的更广泛的社会影响包括：广泛和近乎即时地传播数据以增进对科学技术的了解；收集高质量数据集的社会效益；利用数据评估气候变化；以及气候系统模型校准的资源。二氧化碳是大气中影响地球辐射平衡的最重要的气体之一。许多估算人为二氧化碳的替代方法虽然仍是间接的，但使用的是氟氯化碳数据。资助的测量将有助于量化海洋中人为二氧化碳的存量和通量，并有助于了解其变异性。

ABSTRACTOCE-0351421This is a proposal to measure chlorofluorocarbons (CFC-11, CFC-12, CFC-113) on the U.K. run 26 degrees N transect in winter 2004. The objective is to provide a high quality data set, and make them available nearly immediately to the community as required by the Global Repeat program. The program is in support of CLIVAR (CLImate VARiability and predictability) and the International Carbon Cycle Programs, and is a component of a global observing system for the physical climate/CO2 system. The data will contribute to documenting and understanding how ventilation and ocean carbon change over time. The intellectual merit of the proposed measurements is that they will contribute to the goals of the Global Repeat program: data for model calibration and validation, carbon system studies, calibration of autonomous sensors, and deep and shallow water mass and ventilation studies. In addition, the addition of CFC measurements to the 2004 occupation of the 26N transect will fill a zonal gap in a region where CFC inventories are relatively large, and in the west increasing rapidly throughout the water column. The broader societal impacts of the proposed measurements include: broad and near immediate dissemination of data to enhance scientific and technological understanding; societal benefits of collection of a high quality data set, use of the data to assess climate change, and a resource for model calibration of the climate system. Carbon dioxide is one of the most important gases in the atmosphere affecting the radiative balance of the earth. A number of alternative, although still indirect, means of estimating anthropogenic CO2 use CFC data. The funded measurements will contribute to quantifying the inventory and flux of anthropogenic CO2 in the oceans, and to understanding its variability.