The Ragay Gulf in the Philippines archipelago contains vertical measurements of methane in the water column. The dataset describes methane plumes 80-100 m thick at depths of 100-220 m, with an average surface supersaturation of 206±16.5% and an estimated minimum sea-air flux of 101 nmole.cm-2.y-1. Data was published by Geoscience Australia Data and last updated on 2026-03 -25.
Use Cases
- Modeling methane flux from sea to atmosphere based on reported supersaturation and flux estimates.
- Analyzing the relationship between methane plumes and thermocline structure based on described depth and temperature gradients.
- Comparing natural fossil methane fluxes from seepage to anthropogenic or biogenic sources as referenced in the description.
Strengths
- Includes specific quantitative measurements: average methane supersaturation of 206±16.5% and estimated minimum sea-air flux of 101 nmole.cm-2.y-1.
- Provides detailed geochemical context, suggesting thermogenic origin and plume characteristics over kilometre-scale distances.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Vertical distribution measurements in the water column of the Ragay Gulf.
- Time Range
- null
- Freshness
- Last updated 2026-03-25 16:28:35.637344; freshness should be verified.
- Geography
- Ragay Gulf, Philippines archipelago