Global Seawater Oxygen-18 Database

[Source: NASA/GISS]

This database is a collection of over 26,000 seawater O-18 values made since about 1950. We hope that other researchers can benefit from the not-inconsiderable pain it took to collect, verify and put together all these different sources.

This is a amalgamation of independent efforts by Gavin Schmidt, Grant Bigg and Eelco Rohling which combines our separately evolved interests. Partial versions of this databases appeared in Schmidt (1999) and Bigg and Rohling (2000). These publications can (should!) be referenced, but references to the whole database (currently version 1.22) should include the web address as follows:

Schmidt, G.A., G. R. Bigg and E. J. Rohling. 1999. "Global Seawater Oxygen-18 Database - v1.22" https://data.giss.nasa.gov/o18data/
Since this data comes from different laboratories, different standards have been used and it is not always possible to make everything consistent. If you find that strange phenomena occur across different data sets, please don't blame us! Make sure to read the notes that go along with each reference, and try and go back to the original articles (where possible) for clarification. If there are still unresolved issues, please let us know and we will try to investigate. If you know of more pertinent data that could usefully be included here, please let us know and it will happen. Nominally all delta values are with respect to V-SMOW. Published values that used an older standard (original SMOW or PDB) have been corrected (and there is a note in the data reflecting this).

Note added 27 Dec 2006: Temperature measurements can be in-situ or potential temperature (theta). If this matters for you, please check with the original reference.

【数据来源：NASA/GISS】

本数据库收录了自1950年左右以来的逾26000个海水氧-18（O-18）含量数据。我们希望其他研究人员能够从我们为收集、校验并整合各类不同来源数据所付出的大量心血中获益。

本数据集由加文·施密特（Gavin Schmidt）、格兰特·比格（Grant Bigg）与埃尔科·罗林（Eelco Rohling）各自独立开展的研究工作整合而成，融合了我们三人各自的研究方向。该数据集的部分版本曾刊载于施密特1999年的研究，以及比格与罗林2000年的研究中。上述两篇文献可（且应）作为引用来源，但引用完整数据集（当前版本为1.22）时，需附带如下网址：
施密特（G.A.）、比格（G.R.）与罗林（E.J.），1999年。《全球海水氧-18数据库——v1.22》 https://data.giss.nasa.gov/o18data/

由于本数据来自不同实验室，且采用了不同的测定标准，因此无法保证所有数据完全统一。若您发现不同数据集间存在异常现象，请切勿归咎于我们！请务必阅读每条引用附带的注释，若条件允许，可回溯至原始文献以厘清相关问题。若仍存在未解决的问题，请告知我们，我们将尽力开展排查。若您知晓可纳入本数据集的相关有效数据，请告知我们，我们将予以补充。原则上，所有δ值均以维也纳标准平均海水（V-SMOW, Vienna Standard Mean Ocean Water）为参照基准。采用旧标准（原始标准平均海水SMOW, Standard Mean Ocean Water或PDB, Peedee Belemnite）发表的数值均已完成校正，数据中附有相关注释予以说明。

2006年12月27日补充说明：温度测定值可分为原位温度（in-situ temperature）与位温（potential temperature, θ）。若该区分对您的研究至关重要，请查阅原始文献予以确认。