气候变化领域集成服务门户(CCPortal): Processed CO2/O2 Float data from 4 deployments near Cape Verde Island (11/2010

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.854147
	Processed CO2/O2 Float data from 4 deployments near Cape Verde Island (11/2010 - 06/2011)
	Fiedler; Björn; Fietzek; Peer; Vieira; Nuno; Silva; Pericles; Bittig; Henry; Körtzinger; Arne
发布日期	2013-10-22
数据集类型	dataset
英文简介	In recent years, profiling floats, which form the basis of the successful international Argo observatory, are also being considered as platforms for marine biogeochemical research. This study showcases the utility of floats as a novel tool for combined gas measurements of CO2 partial pressure (pCO2) and O2. These float prototypes were equipped with a small-sized and submersible pCO2 sensor and an optode O2 sensor for highresolution measurements in the surface ocean layer. Four consecutive deployments were carried out during November 2010 and June 2011 near the Cape Verde Ocean Observatory (CVOO) in the eastern tropical North Atlantic. The profiling float performed upcasts every 31 h while measuring pCO2, O2, salinity, temperature, and hydrostatic pressure in the upper 200 m of the water column. To maintain accuracy, regular pCO2 sensor zeroings at depth and surface, as well as optode measurements in air, were performed for each profile. Through the application of data processing procedures (e.g., time-lag correction), accuracies of floatborne pCO2 measurements were greatly improved (10-15 µatm for the water column and 5 µatm for surface measurements). O2 measurements yielded an accuracy of 2 µmol/kg. First results of this pilot study show the possibility of using profiling floats as a platform for detailed and unattended observations of the marine carbon and oxygen cycle dynamics.
空间范围	Median Latitude: 17.813027 * Median Longitude: -25.172036 * South-bound Latitude: 16.329700 * West-bound Longitude: -27.799700 * North-bound Latitude: 19.698000 * East-bound Longitude: -23.631900
时间范围	2010-11-10T23:44:15 - 2011-06-10T09:50:08
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/233573
推荐引用方式 GB/T 7714	Fiedler,Björn,Fietzek,et al. Processed CO2/O2 Float data from 4 deployments near Cape Verde Island (11/2010 - 06/2011).2013-10-22.https://doi.org/10.1594/PANGAEA.854147.