Western Arctic Shelf-Basin Interactions - SBI: Mesoscal Nutrient Structures in the Northern Chukchi and Beaufort Seas in Several Seasons

这项研究将在2003年和2004年3月和4月期间使用一系列飞机飞行到印度国家航空航天局工作区域的北极冰场，以获得代表底层水柱冬末早春状况的水文、营养和其他化学示踪剂分布。这些冬末样品将用于补充该区域额外的大陆架盆地倡议(SBI)邮轮水文学。水文地貌(温度、盐度、密度)将根据水深从冰面到250米或海底进行剖面图。将采集更多的营养素、d18O和可能的溶解无机碳参数的样本。研究区域将包括从巴罗点(阿拉斯加)到西经1650度的横断面、横跨陆架坡折带的横断面(154W)和横跨陆架坡折带的横断面(西经1510西)，横跨陆架坡折带的横断面位于作为更大规模的印度国家航空航天局实验的一部分部署的海流计系泊绳的位置。

ABSTRACTOCE-0125313The study will use a series of aircraft flights out onto Artic ice fields in the SBI work areas during March and April of years 2003 and 2004 to obtain hydrographic, nutrient and other chemical tracer distributions representative of end-winter - early spring conditions of the underlying water column. These late winter samples will be used to complement additional Shelf Basin Initiative (SBI) cruise hydrography in this region. Hydrography (temperature, salinity, density) will be profiled from the ice surface to 250m or the sea floor depending on water depth. Additional samples will be taken for nutrients, d 18O and possibly dissolved inorganic carbon parameters. The study areas will include transects out from Point Barrow (Alaska) to 1650 W, a transect across the shelf-slope break at 1540 W, and a transect across the shelf break at 1510 W, along the location of a current meter mooring line which is deployed as part of the larger SBI experiment.