SOCCOM float data - Snapshot 2020-04-20. In Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) Float Data ArchiveSouthern Ocean Carbon and Climate Observations and Modeling (SOCCOM) Float Data Archive

This .zip archive contains Quality Controlled float data for biogeochemical profiling floats deployed by the Southern Ocean Carbon and Climate Observation and Modeling (SOCCOM) program. Data were processed by the SOCCOM data management team at the Monterey Bay Aquarium Research Institute (MBARI). Certain early archives may contain additional University of Washington/MBARI floats deployed outside of the SOCCOM array. FORMAT: The ascii files contained herein were formatted to be compatible with Ocean Data View (ODV). ODV is freely available at https://odv.awi.de/. In addition, a Matlab function has been provided in each .zip archive for parsing the .txt files into data structures within Matlab (see get_FloatViz_data.m). Please note that the data files within this .zip archive represent a snapshot of all SOCCOM float data processed at MBARI as of the date listed in the file name. Therefore, be aware that processing updates (** AND THUS CHANGES TO THE DATA **) may have occurred since the time the snapshot was created. For the most up-to-date files (processed every 4 hours), visit ftp://ftp.mbari.org/pub/SOCCOM/FloatVizData/ or http://www.mbari.org/science/upper-ocean-systems/chemical-sensor-group/floatviz/ ALTERNATE FORMATS: NetCDF and Matlab Matlab and NetCDF formatted files are provided for each ODV text file. The Matlab format is loaded as structure, FloatViz, with the ODV parameter names as the structure's fieldnames. The NetCDF format is similar to ARGO Float NetCDF format in its structure. The parameter names, however, match the ODV text parameter names. In addition to the quality control flag strings that ARGO profiles use, an array of quality control flags is provided in the NetCDF files for programming convenience. QUALITY CONTROL DOCUMENTATION: Quality control (QC) of SOCCOM float data is performed routinely by SOCCOM data managers at MBARI. QC notification emails are currently being sent out on a monthly (or bi-monthly) basis to inform users of any recent updates to QC and/or sensor calibrations for specific floats. Comments on recent processing updates are also included. All QC emails as of the date of this snapshot are included in each downloadable zip file. PARAMETERS: For information pertaining to float identification, sensor arrays, data parameters, and quality control please refer to descriptions within the file headers. Snapshots created after Jan 01, 2017 include estimated total alkalinity and derived carbon parameters for DIC and pCO2 using one of three algorithms (LIAR, MLR, or CANYON). Floats without a pH sensor will not have these additional parameters within their respective data files. See file headers for details. Additionally, files located at the urls listed above will include carbon parameters derived using observed pH and total alkalinity estimated by the LIAR method. RESOLUTION: This archive contains either low resolution or high resolution data. The format is defined by the folder name: SOCCOM_LoResQC_METHOD_ddmmmyyyy or SOCCOM_HiResQC_METHOD_ddmmmyyyy (where METHOD = LIAR, MLR, or CANYON). Note that for APEX floats, the low resolution files only report data at depths where biogeochemical sensors sample, while the high resolution files merge this low resolution data with higher resolution pressure, temperature and salinity data (sampled every two meters in the upper 1000 meters). Be aware that, due to the merging of the two separate sampling schemes by interleaving the LowRes samples into the HiRes sample structure, HiRes files could potentially contain separate sets of samples with duplicate pressure values. For NAVIS floats all biogeochemical sensors except nitrate are sampled every 2 meters in the upper 1000 m. For NAVIS floats all data is contained in the "LoResQC" files (no "HiResQC" files exist). DISCLAIMER: These data are provided as-is. We do our best to provide high-quality, complete data but make no guarantees as to the presence of errors within the data themselves or the algorithms used in the generation of derived parameters. It is the user's responsibility to ensure that the data meets the user's needs. However, please report any observed discrepancies in the data to the contact listed below and we will do our best to fix them. CONTACT: Please report any discrepancies, problems or concerns to the following and include "FLOATVIZ SNAPSHOT PROCESSING" in the subject line of the email. Tanya Maurer [e-mail] Josh Plant [e-mail] SOCCOM Data Management MBARI 7700 Sandholdt Road Moss Landing, CA 95039

本压缩归档文件包含由南大洋碳与气候观测与建模（Southern Ocean Carbon and Climate Observation and Modeling, SOCCOM）项目部署的生物地球化学剖面浮标的质控（Quality Controlled, QC）数据。数据由蒙特雷湾水族馆研究所（Monterey Bay Aquarium Research Institute, MBARI）的SOCCOM数据管理团队处理。部分早期归档文件可能包含额外的由华盛顿大学与MBARI部署在SOCCOM阵列之外的浮标数据。

【格式说明】本文档内的ASCII文件均适配海洋数据查看器（Ocean Data View, ODV），ODV可从https://odv.awi.de/ 免费获取。此外，每个压缩归档中均附带一个Matlab函数，可将.txt格式文件解析为Matlab环境下的数据结构（详见get_FloatViz_data.m）。请注意，本压缩归档内的数据文件为MBARI截至文件名标注日期所处理的全部SOCCOM浮标数据快照。需注意：自该快照创建以来，可能已进行数据处理更新（**即数据内容发生变更**）。若需获取最新数据（每4小时更新一次），请访问以下网址：ftp://ftp.mbari.org/pub/SOCCOM/FloatVizData/ 或 http://www.mbari.org/science/upper-ocean-systems/chemical-sensor-group/floatviz/

【备用格式】针对每个ODV文本文件，均提供了NetCDF与Matlab格式文件。Matlab格式文件将加载为名为FloatViz的结构体，其中ODV参数名称即为该结构体的字段名。NetCDF格式的结构与ARGO浮标（ARGO Float）NetCDF格式类似，但其参数名称与ODV文本文件的参数名称一致。除ARGO剖面使用的质控标记字符串外，NetCDF文件中还额外提供了一组质控标记数组，以方便编程使用。

【质控文档】SOCCOM浮标数据的质控（QC）工作由MBARI的SOCCOM数据管理人员日常执行。目前，质控通知邮件将按月（或双月）发送，告知用户特定浮标的质控及/或传感器校准的最新更新情况，同时附带近期处理更新的相关说明。本快照创建以来的全部质控邮件均包含在每个可下载的压缩归档中。

【参数说明】有关浮标标识、传感器阵列、数据参数及质控的详细信息，请参阅文件头中的说明。2017年1月1日之后创建的快照包含使用三种算法（LIAR、MLR或CANYON）之一估算得到的总碱度，以及衍生的溶解无机碳（DIC）和分压二氧化碳（pCO₂）参数。未配备pH传感器的浮标，其对应数据文件中将不包含这些额外参数，详情请参阅文件头。此外，上述官方网址中提供的文件还包含通过实测pH值和LIAR方法估算的总碱度衍生得到的碳参数。

【分辨率说明】本归档包含低分辨率或高分辨率数据，格式由文件夹名称定义：SOCCOM_LoResQC_METHOD_ddmmmyyyy 或 SOCCOM_HiResQC_METHOD_ddmmmyyyy（其中METHOD为LIAR、MLR或CANYON）。请注意，对于APEX浮标，低分辨率文件仅报告生物地球化学传感器采样深度处的数据，而高分辨率文件则将该低分辨率数据与更高分辨率的压力、温度和盐度数据（在上层1000米内每2米采样一次）进行合并。需注意：由于通过将低分辨率采样点插入高分辨率采样结构来合并两种独立的采样方案，高分辨率文件可能包含多组具有重复压力值的采样点。对于NAVIS浮标，除硝酸盐外的所有生物地球化学传感器在上层1000米内均以每2米一次的频率采样，且所有数据均包含在“LoResQC”文件中（无“HiResQC”文件）。

【免责声明】本数据按“现状”提供。我们尽力提供高质量、完整的数据，但不对数据本身或衍生参数生成所用算法中存在的错误作出任何保证。用户需自行确认数据是否符合自身需求。但若发现数据存在任何偏差，请联系下述联系人，我们将尽力修正。

【联系方式】请将任何偏差、问题或疑虑反馈至下述联系人，并在邮件主题中注明“FLOATVIZ SNAPSHOT PROCESSING”。
坦尼娅·莫勒（Tanya Maurer）：[e-mail]
乔希·普兰特（Josh Plant）：[e-mail]
SOCCOM数据管理团队
MBARI
7700 Sandholdt Road
莫斯兰丁，加利福尼亚州 95039