Argo Float Vertical Profiles

Argo float vertical profiles from Coriolis Global Data Assembly Centres
(GDAC). Argo is an international collaboration that collects high-quality
temperature and salinity profiles from the upper 2000m of the ice-free
global ocean and currents from intermediate depths. The data come from
battery-powered autonomous floats that spend most of their life drifting
at depth where they are stabilised by being neutrally buoyant at the
"parking depth" pressure by having a density equal to the ambient pressure
and a compressibility that is less than that of sea water. At present there
are several models of profiling float used in Argo. All work in a similar
fashion but differ somewhat in their design characteristics. At typically
10-day intervals, the floats pump fluid into an external bladder and rise
to the surface over about 6 hours while measuring temperature and salinity.
Satellites or GPS determine the position of the floats when they surface,
and the floats transmit their data to the satellites. The bladder then
deflates and the float returns to its original density and sinks to drift
until the cycle is repeated. Floats are designed to make about 150 such
cycles.
Data Management URL: http://www.argodatamgt.org/Documentation
cdm_altitude_proxy=pres
cdm_data_type=TrajectoryProfile
cdm_profile_variables=cycle_number, data_type, format_version, handbook_version, reference_date_time, date_creation, date_update, direction, data_center, dc_reference, data_state_indicator, data_mode, firmware_version, wmo_inst_type, time, time_qc, time_location, latitude, longitude, position_qc, positioning_system, profile_pres_qc, profile_temp_qc, profile_psal_qc, vertical_sampling_scheme
cdm_trajectory_variables=platform_number, project_name, pi_name, platform_type, float_serial_no
Conventions=Argo-3.1, CF-1.6, COARDS, ACDD-1.3
Easternmost_Easting=180.0
featureType=TrajectoryProfile
geospatial_lat_max=61.092
geospatial_lat_min=-77.585
geospatial_lat_units=degrees_north
geospatial_lon_max=180.0
geospatial_lon_min=-179.997
geospatial_lon_units=degrees_east
infoUrl=http://www.argo.net/
institution=Argo
keywords_vocabulary=GCMD Science Keywords
Northernmost_Northing=61.092
source=Argo float
sourceUrl=(local files)
Southernmost_Northing=-77.585
standard_name_vocabulary=CF Standard Name Table v29
subsetVariables=platform_number, project_name, pi_name, platform_type, float_serial_no, cycle_number, data_type, format_version, handbook_version, reference_date_time, date_creation, date_update, direction, data_center, dc_reference, data_state_indicator, data_mode, firmware_version, wmo_inst_type, time, time_qc, time_location, latitude, longitude, position_qc, positioning_system, profile_pres_qc, profile_temp_qc, profile_psal_qc, vertical_sampling_scheme
time_coverage_end=2016-03-07T20:10:00Z
time_coverage_start=2014-01-01T00:00:31Z
user_manual_version=3.1
Westernmost_Easting=-179.997

Argo浮标自全球数据汇编中心（GDAC）获取的垂直剖面数据集。Argo是一项国际协作项目，旨在收集来自无冰全球海洋上层2000米的高质量温度和盐度剖面以及来自中等深度的洋流数据。这些数据由电池供电的自主浮标提供，这些浮标在其生命的大部分时间里都处于深度漂移状态，通过在‘停车深度’压力下保持中性浮力来稳定，此时其密度与周围压力相等，且其压缩性小于海水。目前，Argo项目中有多种类型的剖面浮标正在使用。所有浮标的工作原理相似，但在设计特征上存在一些差异。浮标通常每隔10天将流体泵入外部气囊，并在大约6小时内上升到海面，同时测量温度和盐度。当浮标上升到海面时，卫星或GPS确定其位置，并将数据传输给卫星。随后，气囊泄压，浮标恢复到原始密度并下沉漂移，直到下一次循环。浮标被设计成大约完成150次这样的循环。数据管理URL：http://www.argodatamgt.org/Documentation
cdm_altitude_proxy=pres
cdm_data_type=轨迹剖面
cdm_profile_variables=循环次数、数据类型、格式版本、手册版本、参考日期时间、创建日期、更新日期、方向、数据中心、数据中心参考、数据状态指示器、数据模式、固件版本、WMO机构类型、时间、时间质量、位置、纬度、经度、位置质量、定位系统、剖面压力质量、剖面温度质量、剖面盐度质量、垂直采样方案
cdm_trajectory_variables=平台编号、项目名称、PI姓名、平台类型、浮标序列号
约定=Argo-3.1、CF-1.6、COARDS、ACDD-1.3
最东经=180.0
特征类型=轨迹剖面
地理纬度最大值=61.092
地理纬度最小值=-77.585
地理纬度单位=北纬度
地理经度最大值=180.0
地理经度最小值=-179.997
地理经度单位=东经度
信息URL=http://www.argo.net/
institution=Argo
关键词词汇表=GCMD科学关键词
最北纬=61.092
来源=Argo浮标
来源URL=（本地文件）
最南纬=-77.585
标准名称词汇=CF标准名称表v29
子变量=平台编号、项目名称、PI姓名、平台类型、浮标序列号、循环次数、数据类型、格式版本、手册版本、参考日期时间、创建日期、更新日期、方向、数据中心、数据中心参考、数据状态指示器、数据模式、固件版本、WMO机构类型、时间、时间质量、位置、纬度、经度、位置质量、定位系统、剖面压力质量、剖面温度质量、剖面盐度质量、垂直采样方案
时间范围结束=2016-03-07T20:10:00Z
时间范围开始=2014-01-01T00:00:31Z
用户手册版本=3.1
最西经=-179.997