Air-Sea Exchange of CO2, 02, and Noble Gases in Coastal Waters

DeGrandpre研究将根据沿海海洋过程（CoOP）沿海空气-海洋化学通量试点研究的一次性项目公告（NSF 93-101）进行。NSF/CoOP研究将与onr赞助的海洋边界层（MBL）高级研究计划（ARI）项目进行补充和合作，该项目计划于1995年在加利福尼亚州蒙特雷海岸进行。整个科学项目是跨学科的，NSF/CoOP致力于解决化学和生物参数，而ONR的研究侧重于物理海洋学和气象参数。在MBL ARI期间，其他科学家将进行跨学科的生物、化学、物理和气象实验，该项目将重点研究二氧化碳分压、氧气和惰性气体的浓度。通过测量水柱不同深度的多种气体（He, Ne, Ar， Kr和Xe），研究海气交换机制和上层海洋气体动力学。这组惰性气体将使研究人员能够从平流和热交换等其他物理过程中辨别海气交换。此外，通过在不同深度进行测量，可以直接估计垂直混合对地表浓度的影响。在MBL实验期间，将利用互补的气象、物理和化学数据，最终确定沿海地区海气化学交换的物理强迫和约束机制。

9410914 DeGrandpre Research will be undertaken in response to a one-time Program Announcement (NSF 93-101) for the Coastal Ocean Processes (CoOP) Coastal Air-Sea Chemical Fluxes pilot study. The NSF/CoOP Study will augment and collaborate with the ONR-sponsored Marine Boundary Layer (MBL) Advanced Research Initiative (ARI) project scheduled for 1995 off the coast of Monterey, California. The overall scientific project is interdisciplinary, with the NSF/CoOP efforts addressing chemical and biological parameters, while the ONR study focuses on physical oceanographic and meteorological parameters. This project focuses on concentrations of pCO2, O2 and noble gases in relation to the interdisciplinary framework of biological, chemical, physical, and meteorological experiments to be conducted by other scientists during the MBL ARI. Air-sea gas exchange mechanisms and upper ocean gas dynamics will be studied by measuring multiple gases (He, Ne, Ar, Kr, and Xe) at different depths in the water column. This suite of noble gases will enable the investigators to discern air-sea gas exchange from other physical processes such as advection and heat exchange. Also, by making measurements at different depths, the effects of vertical mixing on surface concentrations can be directly estimated. Complementary meteorological, physical and chemical data to be taken during the MBL experiment will be used to ultimately determine the physical forcing and constraining mechanisms on air- sea chemical exchange in the coastal region.