Argo float vertical profile R4903259_069

These data are ocean profile data measured by profiling Argo S2A floats at a specific latitude, longitude, and date nominally from the surface to 2000 meters depth. Pressure, in situ temperature (ITS-90), and practical salinity are provided at 1-m increments through the water column. Argo data from Gulf of Mexico (GOM) LC1 (9 floats) and LC2 (12 floats) were delayed mode quality controlled and submitted to Global Data Assembly Centers (GDACs) in May 2020. All available profiles are planned to be revisited and evaluated in early 2021. Float no. 4903233 started showing drift in salinity at profile no. 77, and the salinity data will be carefully examined with a new adjustment in early 2021.
_NCProperties=version=2,netcdf=4.6.3,hdf5=1.10.4
cdm_altitude_proxy=PRES
cdm_data_type=Profile
cdm_profile_variables=profile
comment=free text
contributor_email=[e-mail]
contributor_name=RPS
contributor_role=editor
contributor_role_vocabulary=https://vocab.nerc.ac.uk/collection/G04/current/
contributor_url=https://www.rpsgroup.com/
Conventions=CF-1.7, ACDD-1.3, IOOS-1.2, Argo-3.2, COARDS
date_metadata_modified=2020-12-22T15:54:25Z
Easternmost_Easting=-89.9394
featureType=Profile
geospatial_bounds=POINT (-89.9394 25.21919)
geospatial_bounds_crs=EPSG:4326
geospatial_lat_max=25.21919
geospatial_lat_min=25.21919
geospatial_lat_units=degrees_north
geospatial_lon_max=-89.9394
geospatial_lon_min=-89.9394
geospatial_lon_units=degrees_east
history=2020-08-29T07:00:49Z creation
id=R4903259_069
infoUrl=http://www.argodatamgt.org/Documentation
institution=GCOOS
instrument=Argo
instrument_vocabulary=GCMD Earth Science Keywords. Version 5.3.3
keywords_vocabulary=GCMD Science Keywords
naming_authority=edu.tamucc.gulfhub
Northernmost_Northing=25.21919
note_CHAR_variables=RPS METADATA ENHANCEMENT NOTE
Variables of data type 'CHAR' have been altered by the xarray and netCDF4-python libraries to contain an extra dimension (often denoted as 'string1'). This is due to an underlying issue in the libraries: https://github.com/pydata/xarray/issues/1977. Upon examination, one will find the data has not been altered but only changed shape. We realize this is sub-optimal and apologize for any inconveniences this may cause.
note_FillValue=RPS METADATA ENHANCEMENT NOTE
Many variables in this dataset are of type 'char' and have a '_FillValue' attribute which is interpreted through NumPy as 'b', an empty byte string. This causes serialization issues. As a result, all variables of type 'char' with '_FillValue = b' have had the _FillValue attribute removed to avoid serialization conflicts. However, no data has been changed, so the _FillValue is still "b' '".
platform=subsurface_float
platform_name=Argo Float
platform_vocabulary=IOOS Platform Vocabulary
processing_level=Argo data are received via satellite transmission, decoded and assembled at national DACs. These DACs apply a set of automatic quality tests (RTQC) to the data, and quality flags are assigned accordingly. In the delayed-mode process (DMQC), data are subjected to visual examination and are re-flagged where necessary. For the float data affected by sensor drift, statistical tools and climatological comparisons are used to adjust the data for sensor drift when needed. For each float that has been processed in delayed-mode, the OWC method (Owens and Wong, 2009; Cabanes et al., 2016) is run with four different sets of spatial and temporal decorrelation scales and the latest available reference dataset. If the salinity adjustments obtained from the four runs all differ significantly from the existing adjustment, then the salinity data from the float are re-examined and a new adjustment is suggested if necessary. The usual practice is to examine the profiles in delayed-mode initially about 12 months after they are collected, and then revisit several times as more data from the floats are obtained (see details in Wong et al., 2020).
program=Understanding Gulf Ocean Systems (UGOS)
project=National Academy of Science Understanding Gulf Ocean Systems 'LC-Floats - Near Real-time Hydrography and Deep Velocity in the Loop Current System using Autonomous Profilers' Program
references=http://www.argodatamgt.org/Documentation
sea_name=Gulf of Mexico
source=Argo float
sourceUrl=(local files)
Southernmost_Northing=25.21919
standard_name_vocabulary=CF Standard Name Table v67
subsetVariables=CYCLE_NUMBER, DIRECTION, DATA_MODE, time, JULD_QC, JULD_LOCATION, latitude, longitude, POSITION_QC, CONFIG_MISSION_NUMBER, PROFILE_PRES_QC, PROFILE_TEMP_QC, PROFILE_PSAL_QC
time_coverage_duration=P0000-00-00T00:00:00
time_coverage_end=2020-08-24T06:40:01Z
time_coverage_resolution=P0000-00-00T00:00:00
time_coverage_start=2020-08-24T06:40:01Z
user_manual_version=3.2
Westernmost_Easting=-89.9394

本数据集收录了由 Argo S2A 浮标在特定纬度、经度和日期下，从海面至 2000 米深度范围内的海洋剖面数据。数据以 1 米的间隔提供了压力、现场温度（ITS-90）和实际盐度。墨西哥湾（GOM）LC1（9 个浮标）和 LC2（12 个浮标）的 Argo 数据于 2020 年 5 月提交至全球数据汇编中心（GDACs）。所有可用的剖面数据计划于 2021 年初进行复查和评估。浮标编号 4903233 在第 77 个剖面数据中开始出现盐度漂移，盐度数据将在 2021 年初进行仔细检查并实施新的调整。

数据集的 _NCProperties 包含版本信息、netCDF 和 hdf5 版本。cdm_altitude_proxy 标识压力作为高度代理，cdm_data_type 为 Profile，cdm_profile_variables 为 profile。注释字段包含自由文本。贡献者信息包括电子邮件、名称、角色及其词汇表链接。遵循的规范包括 CF-1.7、ACDD-1.3、IOOS-1.2、Argo-3.2 和 COARDS。元数据最后修改日期为 2020 年 12 月 22 日。

地理空间边界、最大和最小经纬度及其单位等信息已提供。历史记录表明数据集于 2020 年 8 月 29 日创建。数据集的标识符为 R4903259_069，相关信息可通过提供的 URL 获取。机构信息为 GCOOS，仪器为 Argo，仪器词汇表参考 GCMD 地球科学关键词版本 5.3.3。关键词词汇表参考 GCMD 科学关键词。

naming_authority 为 edu.tamucc.gulfhub，Northernmost_Northing 和 Southernmost_Northing 为北纬和南纬的最大值，note_CHAR_variables 和 note_FillValue 字段提供有关数据集特定属性的说明。平台类型为 subsurface_float，平台名称为 Argo Float，平台词汇表参考 IOOS 平台词汇表。处理级别描述了 Argo 数据的处理流程，包括实时质量控制（RTQC）和延迟模式质量控制（DMQC）。项目信息包括项目名称、程序和参考。

sea_name 为墨西哥湾，source 为 Argo 浮标，sourceUrl 提供本地文件路径。subsetVariables 列出了数据集中的子集变量，time_coverage_duration、time_coverage_end、time_coverage_resolution、time_coverage_start 提供时间覆盖范围信息。user_manual_version 为用户手册版本号，Westernmost_Easting 和 Easternmost_Easting 分别为西经和东经的最大值。