OSD: Global Oceanographic Bottle and CTD Profiles, 1991-2000
Updated 3mo ago
16files
Available on 2 platforms
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Description
Dataset OSD contains bottle and Conductivity-Temperature-Depth (CTD) data collected from multiple French and international platforms worldwide. Measurements support the World Ocean Circulation Experiment (WOCE) and Joint Global Ocean Flux Study (JGOFS) programs. Bottle parameters include dissolved oxygen, nitrate, nitrite, silicate, chlorophyll-a, dissolved organic carbon, and total phaeopigments, while CTD profiles capture temperature and salinity.
Use Cases
Analyzing dissolved oxygen concentration profiles to assess ocean deoxygenation trends.
Studying nutrient (nitrate, nitrite, silicate) profiles to model marine primary productivity.
Calibrating satellite-derived sea surface salinity data with in-situ CTD measurements.
Investigating the relationship between chlorophyll-a and total phaeopigments for phytoplankton community studies.
Modeling ocean carbon fluxes based on dissolved organic carbon measurements.
Strengths
Data collection spans at least nine years, from 1991 to 2000, providing a multi-year time series.
Dataset is hosted on multiple major platforms (Data.gov, NASA Earthdata), indicating established provenance and importance.
Limitations
Column names and exact data structure are not provided in any source, limiting immediate usability.
Sources conflict on the primary time range (1998-2000 vs. 1991-1997 mentioned in the title).
Key metadata such as row count, file format, and specific license are consistently listed as unknown or null.
Provenance
Source
Multiple institutions supporting WOCE and JGOFS, aggregated by the National Oceanic and Atmospheric Administration (NOAA).
Collection Method
Collected from ship-based platforms (e.g., L'ATALANTE, MARION DUFRESNE) using bottle sampling and CTD casts.
Time Range
1991 to 2000
Freshness
Last updated on Data.gov on 2026-03-05, though the core data collection ended in 2000.
Geography
Worldwide distribution, with specific mentions of the Mediterranean and Antarctic regions.
Users should verify the precise temporal coverage due to conflicting date ranges in the metadata. The 'French platforms' detail suggests a specific national contribution within the larger international programs.