IOOS Glider - Gliders in the Gulf Stream - sp070-20220824T1510

The overarching goal of this project is to collect high resolution transects across the Gulf Stream. Though the speed of the Gulf Stream greatly exceeds the speed of a glider, gliders can be flown across the current as they are advected downstream. Missions prior to 2015 were conducted downstream (northeast) of Cape Hatteras, primarily between Cape Cod and Bermuda; missions since 2015 begin in Miami, FL and are planned to end on the New England continental shelf. During a typical 100-day mission between Miami and Cape Cod, a single glider completes 6-10 crossings of the Gulf Stream, returning approximately 800 profiles to the shallower of the sea floor or 1000 m. The current operational goal is to maintain at least one glider in the Gulf Stream at all times. Additional plots of these data are available at http://gliders.whoi.edu.cdm_data_type = TrajectoryProfileVARIABLES:chlorophyll_a (Chlorophyll-a concentration, kg.m-3)chlorophyll_a_qc (chlorophyll_a Quality Flag)conductivity (Sea Water Electrical Conductivity, S.m-1)conductivity_qc (conductivity Quality Flag)density (Sea Water Density, kg.m-3)density_qc (density Quality Flag)depth (m)depth_qc (depth Quality Flag)instrument_ctd (CTD Metadata, 1)instrument_fchllat_qc (latitude Quality Flag)lat_uv (Depth-averaged Latitude, degrees_north)lat_uv_qc (lat_uv Quality Flag)latitude (Profile Latitude, degrees_north)lon_qc (longitude Quality Flag)lon_uv (Depth-averaged Longitude, degrees_east)lon_uv_qc (lon_uv Quality Flag)longitude (Profile Longitude, degrees_east)precise_lat (Precise Latitude, degrees_north)... (50 more variables)

本项目的核心目标是采集墨西哥湾暖流（Gulf Stream）的高分辨率断面数据。尽管墨西哥湾暖流的流速远高于海洋滑翔机的速度，但滑翔机可在随流向下游漂移的过程中横穿该洋流。2015年前的任务在哈特拉斯角下游（东北方向）开展，主要区域位于科德角与百慕大之间；2015年以来的任务则始于佛罗里达州迈阿密，计划终止于新英格兰大陆架。在迈阿密与科德角之间的典型100天任务中，单台滑翔机可完成6至10次墨西哥湾暖流横穿，返回约800组剖面数据，探测深度可达海底较浅处或1000米。当前的运行目标是确保墨西哥湾暖流区域始终至少有一台滑翔机在运行。这些数据的额外图表可通过以下链接获取：http://gliders.whoi.edu，CDM数据类型为轨迹剖面（TrajectoryProfile）。变量列表：chlorophyll_a（叶绿素a浓度，单位kg·m⁻³）、chlorophyll_a_qc（chlorophyll_a质量标志）、conductivity（海水电导率，单位S·m⁻¹）、conductivity_qc（conductivity质量标志）、density（海水密度，单位kg·m⁻³）、density_qc（density质量标志）、depth（深度，单位m）、depth_qc（depth质量标志）、instrument_ctd（CTD元数据，取值1）、lat_uv_qc（lat_uv质量标志）、lat_uv（深度平均纬度，单位degrees_north）、latitude（剖面纬度，单位degrees_north）、lon_qc（longitude质量标志）、lon_uv（深度平均经度，单位degrees_east）、lon_uv_qc（lon_uv质量标志）、longitude（剖面经度，单位degrees_east）、precise_lat（精确纬度，单位degrees_north）……（另有50个变量）