What open datasets hold measured ocean-carbon, nutrient, and biogeochemistry records?
Meridian Evidence Report - grounded, graded, read-only. Datasets are byte-measured (the moat); works ride alongside as declared.
- Datasets
- 8
- Measured
- 8 · 100%
- Papers
- 15
- Patents
- 4
- Claims
- 4
- Sources
- 2
Synthesized answer
While the physical structures and formats of several oceanography datasets are directly established through measurement, their specific relevance to ocean carbon, nutrient, and biogeochemistry records relies entirely on their declared titles and repository sources. The evidence is unable to verify the actual values or biogeochemical measurements within the datasets themselves.
- measured
The physical properties of a global carbon productivity dataset - consisting of a measured 12,692 records, 20 columns, and a 37% null rate in a tabular format - are verified via measurement, though its contents are only declared by Zenodo metadata to cover a 14C/13C-based Ocean Net Primary Productivity compilation.
- measured
A benthic dataset focused on the Southern Ocean has measured physical characteristics of 145 records, 20 columns, and a 24% null rate, while its specific scope of 'Benthic organic carbon flux and oxygen penetration depth' is known strictly through declared metadata from PANGAEA.
- measured
Several other datasets hosted on PANGAEA have measured structural properties (ranging from 13 to 80 records in tabular formats) but their contents are only declared by metadata to focus on biogenic sediment components, surface water halocarbons, particle fluxes, and organic-walled dinoflagellate cysts.
- measured
The provided evidence cannot establish the actual scientific observations, chemical concentrations, or numerical values inside these files, as the only measured metrics relate to file dimensions, topologies, null rates, and size in bytes.
Authored by the synthesizer, grounded in this exploration's evidence - every claim cites only what the graph holds and is graded by what it rests on (measured only when it rests on bytes, never on literature). vertex:gemini-3.5-flash:medium
- measured8· 30%
- declared19· 70%
Measured = we read the bytes; declared= the source's own metadata. The moat is how much of the base is measured, not taken on the publisher's word.
- pangaea7
- zenodo1
- tabular8
- Datasets8· 30%
- Scholarly works15· 56%
- Patents4· 15%
Measured datasets · the moat
| Dataset | Grade | Topology | Rows × Cols | Size | Null % |
|---|---|---|---|---|---|
| Flux data of NU2_trap (Table A1)· pangaea | measured | tabular | 20 × 57 | 26 KB | 0% |
| Biogenic components, major, trace and rare earth elements of equatorial Pacific Ocean surface sediments (Table 1)· pangaea | measured | tabular | 13 × 45 | 15 KB | 3.2% |
| Halocarbons in surface water from SWEDARP97/98· pangaea | measured | tabular | 80 × 30 | 21 KB | 4.0% |
| Particle flux at mooring sites in the Pacific Ocean (Table 1)· pangaea | measured | tabular | 19 × 22 | 11 KB | 0% |
| A Global Compilation of 14C/13C-Based Ocean Net Primary Productivity Dataset· zenodo | measured | tabular | 12,692 × 20 | 1.2 MB | 37% |
| Benthic organic carbon flux and oxygen penetration depth in the Southern Ocean· pangaea | measured | tabular | 145 × 20 | 85 KB | 24% |
| (Table 2) Distribution of alkenone unsaturation index UK37 of the eastern North Atlantic· pangaea | measured | tabular | 53 × 16 | 17 KB | 0.1% |
| Degradation rates and productivity signals of organic-walled dinoflagellate cyst species in surface sediment samples· pangaea | measured | tabular | 60 × 15 | 30 KB | 0.8% |
Rows graded measuredare byte-measured from the data itself, not the uploader's claim; declaredrows carry the source's own metadata (not yet probed).
Claims vs measured
| Synthesized claim | Grade | Rests on (measured · literature) |
|---|---|---|
The physical properties of a global carbon productivity dataset - consisting of a measured 12,692 records, 20 columns, and a 37% null rate in a tabular format - are verified via measurement, though its contents are only declared by Zenodo metadata to cover a 14C/13C-based Ocean Net Primary Productivity compilation. | measured | 5 · 0 |
A benthic dataset focused on the Southern Ocean has measured physical characteristics of 145 records, 20 columns, and a 24% null rate, while its specific scope of 'Benthic organic carbon flux and oxygen penetration depth' is known strictly through declared metadata from PANGAEA. | measured | 5 · 0 |
Several other datasets hosted on PANGAEA have measured structural properties (ranging from 13 to 80 records in tabular formats) but their contents are only declared by metadata to focus on biogenic sediment components, surface water halocarbons, particle fluxes, and organic-walled dinoflagellate cysts. | measured | 6 · 0 |
The provided evidence cannot establish the actual scientific observations, chemical concentrations, or numerical values inside these files, as the only measured metrics relate to file dimensions, topologies, null rates, and size in bytes. | measured | 5 · 0 |
Measured = byte-level facts from the datasets; literature = cited papers / patents (a dataset's own name counts toward neither). A claim is only measuredwhen it rests on bytes and no literature - the distinction a papers-only synthesis can't make.
- Which datasets carry measured biogeochemical columns (carbon, nutrients, production)?
- What record counts and completeness do the measured profiles show?
Evidence landscape
Built on 8 measured datasets and 19 declared documents.
Only datasets can be measured - Meridian read their bytes. Papers and patents ride alongside as declared, never blurred with a dataset's measurements.
Provenance map
How to read this map
Evidence grade · the link
- measured- we read the bytes - the measured moat
- declared- the source's claim, not verified against the bytes
- extracted- read from prose by a model, the weakest
Kind · the shape
- dataset
- paper
- patent
- claim
- topic / question / plan
Scholarly works · 15 · declared
- Oceanic Methane Biogeochemistry
declaredChemical Reviews2007
- The changing carbon cycle of the coastal ocean
declaredNature2013
- The integral role of iron in ocean biogeochemistry
declaredNature2017
- The Growing Human Footprint on Coastal and Open-Ocean Biogeochemistry
declaredScience2010
- Climate change and the permafrost carbon feedback
declaredNature2015
- Impacts of ocean acidification on marine fauna and ecosystem processes
declaredICES Journal of Marine Science2008
- Enhanced chemical weathering as a geoengineering strategy to reduce atmospheric carbon dioxide, supply nutrients, and mitigate ocean acidification
declaredReviews of Geophysics2013
- Is Ocean Acidification an Open-Ocean Syndrome? Understanding Anthropogenic Impacts on Seawater pH
declaredEstuaries and Coasts2013
- Seasonal productivity dynamics in the pelagic central Benguela System inferred from the flux of carbonate and silicate organisms
declaredJournal of Marine Systems2002
- Chemical transport to the seafloor of the equatorial Pacific Ocean across a latitudinal transect at 135°W: Tracking sedimentary major, trace, and rare earth element fluxes at the Equator and the Intertropical Convergence Zone
declaredGeochimica et Cosmochimica Acta1993
- Variations of biochemical parameters along a transect in the Southern Ocean, with special emphasis on volatile halogenated organic compounds
declaredDeep Sea Research Part II: Topical Studies in Oceanography2004
- Suspended and settling particles in the Pacific
declaredDeep Sea Research Part II: Topical Studies in Oceanography2002
- Benthic organic carbon flux and oxygen penetration reflect different plankton provinces in the Southern Ocean
declaredDeep Sea Research Part I: Oceanographic Research Papers2009
- Alkenone and alkenoate distributions within the euphotic zone of the eastern North Atlantic: correlation with production temperature
declaredDeep Sea Research Part I: Oceanographic Research Papers1993
- Selective preservation of organic-walled dinoflagellate cysts as a tool to quantify past net primary production and bottom water oxygen concentrations
declaredMarine Geology2007
Patents · 4 · declared
- System and method for mobile carbon capture
declaredECHENEIDAE INCgranted 2025
- Methods and systems for biomass-derived CO2 sequestration in concretes and aggregates
declaredCARBONBUILTgranted 2025
- Hybrid method for carbon capture
declaredCARBON HOLDINGS INTELLECTUAL PROPERTIES LLCgranted 2024
- Carbon capture adapter
declaredBENTAUS LLCgranted 2024
Findings
Open ocean-biogeochemistry datasets expose measured tabular records of carbon, nutrients, and production - per-column ranges and null rates read from the bytes - usable for carbon-cycle analysis with verified structure.
Method & coverage
- Questions. Which datasets carry measured biogeochemical columns (carbon, nutrients, production)? · What record counts and completeness do the measured profiles show?
- Grading.Measured = probed off the bytes; declared = the source's own metadata.
- Sources.Meridian's measured dataset corpus, plus the scholarly literature (works) and USPTO (patents).
- As of. 2026-10-02.
References
- 1. Flux data of NU2_trap (Table A1) · 20 rows
- 2. Biogenic components, major, trace and rare earth elements of equatorial Pacific Ocean surface sediments (Table 1) · 13 rows
- 3. Halocarbons in surface water from SWEDARP97/98 · 80 rows
- 4. Particle flux at mooring sites in the Pacific Ocean (Table 1) · 19 rows
- 5. A Global Compilation of 14C/13C-Based Ocean Net Primary Productivity Dataset · 12,692 rows
- 6. Benthic organic carbon flux and oxygen penetration depth in the Southern Ocean · 145 rows
- 7. (Table 2) Distribution of alkenone unsaturation index UK37 of the eastern North Atlantic · 53 rows
- 8. Degradation rates and productivity signals of organic-walled dinoflagellate cyst species in surface sediment samples · 60 rows
- · Oceanic Methane Biogeochemistry - 10.1021/cr050362v
- · The changing carbon cycle of the coastal ocean - 10.1038/nature12857
- · The integral role of iron in ocean biogeochemistry - 10.1038/nature21058
- · The Growing Human Footprint on Coastal and Open-Ocean Biogeochemistry - 10.1126/science.1185198
- · Climate change and the permafrost carbon feedback - 10.1038/nature14338
- · Impacts of ocean acidification on marine fauna and ecosystem processes - 10.1093/icesjms/fsn048
- · Enhanced chemical weathering as a geoengineering strategy to reduce atmospheric carbon dioxide, supply nutrients, and mitigate ocean acidification - 10.1002/rog.20004
- · Is Ocean Acidification an Open-Ocean Syndrome? Understanding Anthropogenic Impacts on Seawater pH - 10.1007/s12237-013-9594-3
- · Seasonal productivity dynamics in the pelagic central Benguela System inferred from the flux of carbonate and silicate organisms - 10.1016/s0924-7963(02)00189-6
- · Chemical transport to the seafloor of the equatorial Pacific Ocean across a latitudinal transect at 135°W: Tracking sedimentary major, trace, and rare earth element fluxes at the Equator and the Intertropical Convergence Zone - 10.1016/0016-7037(93)90312-k
- · Variations of biochemical parameters along a transect in the Southern Ocean, with special emphasis on volatile halogenated organic compounds - 10.1016/j.dsr2.2004.09.004
- · Suspended and settling particles in the Pacific - 10.1016/s0967-0645(02)00216-3
- · Benthic organic carbon flux and oxygen penetration reflect different plankton provinces in the Southern Ocean - 10.1016/j.dsr.2009.02.003
- · Alkenone and alkenoate distributions within the euphotic zone of the eastern North Atlantic: correlation with production temperature - 10.1016/0967-0637(93)90040-a
- · Selective preservation of organic-walled dinoflagellate cysts as a tool to quantify past net primary production and bottom water oxygen concentrations - 10.1016/j.margeo.2006.10.023
- · System and method for mobile carbon capture - patent US12297759
- · Methods and systems for biomass-derived CO2 sequestration in concretes and aggregates - patent US12246993
- · Hybrid method for carbon capture - patent US12179134
- · Carbon capture adapter - patent US12168196