全球海洋数据分析项目数据（GLODAP）v2.2023版本

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此星光明 发表于 2024/02/03 09:24:53 2024/02/03
【摘要】 ​简介全球海洋数据分析项目 (GLODAP) v2.2023¶全球海洋数据分析项目（GLODAP）v2.2023 在海洋生物地球化学瓶数据的综合方面取得了重大进展。此次更新以海水无机碳化学为主要重点，以 GLODAPv2.2022 为基础，纳入了几项关键改进。值得注意的是，新增了 43 个巡航航次，以扩大数据集的覆盖范围，直至 2020 年。在数据质量控制过程中，删除了温度缺失的条目。此外，...

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简介

全球海洋数据分析项目 (GLODAP) v2.2023¶
全球海洋数据分析项目（GLODAP）v2.2023 在海洋生物地球化学瓶数据的综合方面取得了重大进展。此次更新以海水无机碳化学为主要重点，以 GLODAPv2.2022 为基础，纳入了几项关键改进。值得注意的是，新增了 43 个巡航航次，以扩大数据集的覆盖范围，直至 2020 年。在数据质量控制过程中，删除了温度缺失的条目。此外，每次巡航都加入了数字对象标识符（DOIs），增强了数据的可追溯性。GLODAPv2.2022 还包括一些小的修正，以提高数据的准确性。前言 – 人工智能教程

该数据集包含来自全球各大洋 1108 次航行的 140 多万份水样，涵盖 12 个基本变量，如盐度、氧气、硝酸盐、硅酸盐、磷酸盐、溶解无机碳、总碱度、pH 值、CFC-11、CFC-12、CFC-113 和 CCl4。数据有两种格式：原始数据格式（已更新为世界海洋学数据交换格式）和经过偏差最小化调整的合并数据产品。采用了严格的质量控制程序，并通过将新的巡航数据与来自 GLODAPv2.2020 的质量控制数据进行比较来进行调整。据信，该数据集可在特定范围内对每个变量进行精确测量。

若要访问这一宝贵资源及其文档（包括 DOI），请访问 NOAA NCEI 的海洋碳数据系统，网址为：。此外，还提供了合并数据产品，包括单一的全球文件以及北冰洋、大西洋、印度洋和太平洋的区域文件。这些文件包含通过插值或计算得出的辅助数据和近似数据。有关全面信息和数据访问，请访问 GLODAP 的官方网站。研究人员可根据所提供的资源和文件从这一活数据集中获益。

数据质量和准确性


数据集经过了广泛的质量控制，重点是对偏差进行系统评估。所做的调整旨在消除因测量、校准和数据处理方法相关的误差而产生的潜在偏差，同时保留评估变量中已知或可能的时间趋势或变化。

据信，经过汇编和调整的数据产品具有很高的准确性和一致的测量结果：

盐度优于 0.005 氧：1% 硝酸盐：2% 硅酸盐：2% 磷酸盐：2% 溶解无机碳：4 μmolkg-¹ 总碱度：4 μmolkg-¹ pH 值：0.01-0.02（因地区而异） 卤化瞬态示踪剂：5% 汇编中的其他变量，如同位素示踪剂和离散二氧化碳逸度（fCO2），未进行偏差比较或调整。

波段信息 

Variable / Parameter Abbreviation Unit Observation Type Sampling Instrument Quality Flag Convention Researcher Name
Temperature temperature °C measured, data synthesis CDT, Niskin Bottles WOCE quality control flags are used GLODAP Group
Potential temperature theta °C calculated GLODAP Group
Salinity salinity measured, data synthesis CDT, Niskin Bottles WOCE quality control flags are used GLODAP Group
Potential density sigma0 kg m−3 calculated GLODAP Group
Potential density, ref 1000 dbar sigma1 kg m−3 calculated GLODAP Group
Potential density, ref 2000 dbar sigma2 kg m−3 calculated GLODAP Group
Potential density, ref 3000 dbar sigma3 kg m−3 calculated GLODAP Group
Potential density, ref 4000 dbar sigma4 kg m−3 calculated GLODAP Group
Neutral density gamma kg m−3 calculated GLODAP Group
Oxygen oxygen μmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
Apparent oxygen utilization aou μmol kg−1 calculated GLODAP Group
Nitrate nitrate μmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
Nitrite nitrite μmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
Silicate silicate μmol kg−1 measured, data synthesis CDT, Niskin Bottles WOCE quality control flags are used GLODAP Group
Phosphate phosphate μmol kg−1 measured, data synthesis CDT, Niskin Bottles WOCE quality control flags are used GLODAP Group
TCO2 tco2 μmol kg−1 measured, calculated, data synthesis CTD, Niskin Bottles Simplified WOCE quality control flags are used GLODAP Group
TAlk talk μmol kg−1 measured, calculated, data synthesis CTD, Niskin Bottles Simplified WOCE quality control flags are used GLODAP Group
fCO2 fco2 microatmospheres measured, calculated, data synthesis CTD, Niskin Bottles Simplified WOCE quality control flags are used GLODAP Group
pH at total scale, 25 °C and zero dbar of pressure phts25p0 measured, calculated, data synthesis CTD, Niskin Bottles Simplified WOCE quality control flags are used GLODAP Group
pH at total scale, in situ temperature and pressure phtsinsitutp measured, calculated, data synthesis CTD, Niskin Bottles Simplified WOCE quality control flags are used GLODAP Group
CFC-11 cfc11 pmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
pCFC-11 pcfc11 ppt measured, data synthesis CTD, Niskin Bottles GLODAP Group
CFC-12 cfc12 pmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
pCFC-12 pcfc12 ppt measured, data synthesis CTD, Niskin Bottles GLODAP Group
CFC-113 cfc113 pmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
CCl4 ccl4 pmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
pCCl4 pccl4 ppt calculated GLODAP Group
SF6 sf6 fmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
pSF6 psf6 ppt calculated GLODAP Group
δ13C c13 % measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
∆14C c14 % measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
∆14C counting error c14err % calculated GLODAP Group
3H h3 TU measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
3H counting error h3err TU calculated GLODAP Group
δ3He δ3He % measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
3He counting error he3err % calculated GLODAP Group
He He nmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
He counting error heerr % calculated GLODAP Group
Neon neon nmol kg−1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
Neon counting error neonerr nmol kg−1 calculated GLODAP Group
δ18O o18 % measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
Total organic carbon toc μmol L-1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
Dissolved organic carbon doc μmol L-1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
Dissolved organic nitrogen don μmol L-1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
Total dissolved nitrogen tdn μmol L-1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group
Chlorophyll a chla ug L-1 measured, data synthesis CTD, Niskin Bottles WOCE quality control flags are used GLODAP Group

引用Citation

Whenever GLODAPv2 is used, the following citations must be included:

  • For data and data product: Olsen et al., 2016 and Key et al., 2015
  • For mapped product: Lauvset et al., 2016 and Key et al., 2015
Olsen, A., R. M. Key, S. van Heuven, S. K. Lauvset, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, M. Hoppema, S. Jutterström, R. Steinfeldt,
E. Jeansson, M. Ishii, F. F. Pérez and T. Suzuki. The Global Ocean Data Analysis Project version 2 (GLODAPv2) – an internally consistent data
product for the world ocean, Earth Syst. Sci. Data, 8, 297–323, 2016, doi:10.5194/essd-8-297-2016

Lauvset, S. K, R. M. Key, A. Olsen, S. van Heuven, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, M. Hoppema, S. Jutterström, R. Steinfeldt, E.
Jeansson, M. Ishii, F. F. Pérez, T. Suzuki and S. Watelet. A new global interior ocean mapped climatology: the 1°x1° GLODAP version 2, Earth Syst.
Sci. Data, 8, 325–340, 2016, doi:10.5194/essd-8-325-2016

Key, R.M., A. Olsen, S. van Heuven, S. K. Lauvset, A. Velo, X. Lin, C. Schirnick, A. Kozyr, T. Tanhua, M. Hoppema, S. Jutterström, R. Steinfeldt, E.
Jeansson, M. Ishii, F. F. Perez, and T. Suzuki. 2015. Global Ocean Data Analysis Project, Version 2 (GLODAPv2), ORNL/CDIAC-162, NDP-093. Carbon
Dioxide Information Analysis Center, Oak Ridge National Laboratory, US Department of Energy, Oak Ridge, Tennessee. doi:10.3334/CDIAC/OTG.
NDP093_GLODAPv2

 数据预处理

matlab 派生产品会在所有列名前添加一个 G2，并保持原样，但会添加名为 system:time_start 和 datetime 的额外列，以反映从现有列导出的纪元时间和 UTC 日期。添加 system:time_start 和 datetime 后，就可以在地球引擎集合中轻松进行筛选。在提供合并集合的同时，仍保留了单个地物集合，以便用户灵活加载较小的地物子集进行操作。

代码 

var merged = ee.FeatureCollection("projects/sat-io/open-datasets/GLODAP_V2/GLODAPv2_2023_Merged_Master_File_formatted");
var arctic_ocean = ee.FeatureCollection("projects/sat-io/open-datasets/GLODAP_V2/GLODAPv2_2023_Arctic_Ocean_formatted");
var atlantic_ocean = ee.FeatureCollection("projects/sat-io/open-datasets/GLODAP_V2/GLODAPv2_2023_Atlantic_Ocean_formatted");
var indian_ocean = ee.FeatureCollection("projects/sat-io/open-datasets/GLODAP_V2/GLODAPv2_2023_Indian_Ocean_formatted");
var pacific_ocean = ee.FeatureCollection("projects/sat-io/open-datasets/GLODAP_V2/GLODAPv2_2023_Pacific_Ocean_formatted");

代码链接

https://code.earthengine.google.com/?scriptPath=users/sat-io/awesome-gee-catalog-examples:oceans-shorelines/GLODAP-V2_2023_MERGED

License

数据集以公开许可的方式发布。分发责任： NOAA 和 NCEI 对这些数据不作任何明示或暗示的保证，分发事实也不构成这种保证。NOAA 和 NCEI 不对这些数据中的任何错误或遗漏造成的任何损害承担责任。在适当情况下，NCEI 只能证明其分发的数据是已被接受纳入 NCEI 档案的记录的真实副本。

Provided by: NCEI, NOAA, Olsen et al

Curated in GEE by: Samapriya Roy

Last updated in GEE: 2023-10-25

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