Typhoon-Driven Methane Pulses in an Urban Estuary, 22,536 Observations from 2025

An ultrahigh-resolution spatial monitoring record of water quality and dissolved greenhouse gases, comprising 22,536 in situ observations. Data were collected in the Dasha River Estuary (Shenzhen, China) between June 12 and June 19, 2025, capturing the pre-, during-, and post-phases of Typhoon Wutip. The dataset was created by Peng Xiao and supports findings presented in a related manuscript.

Use Cases

• Modeling methane and CO2 flux dynamics based on dissolved gas measurements.
• Analyzing the impact of typhoon disturbance on water quality parameters like COD, TOC, and turbidity.
• Spatial mapping of biogeochemical variables using geospatially registered data points.
• Investigating correlations between dissolved organic matter (FDOM) and greenhouse gas concentrations.
• Studying the temporal evolution of an estuary's chemical state before, during, and after a major storm.

Strengths

• Contains 22,536 in situ observations, providing high data density.
• Captures a complete event timeline with data from pre-, during-, and post-typhoon phases in June 2025.
• Includes synchronized measurements of multiple parameters: dissolved CH4, CO2, COD, TOC, pH, DO, conductivity, turbidity, FDOM, and temperature.
• All data points are geospatially registered via an ultra-short baseline (USBL) acoustic positioning unit.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is limited to a single estuary and a one-week period in 2025, which may affect generalizability.

Provenance

Source

Peng Xiao via figshare.

Collection Method

Collected using a custom vector-thrusted underwater drone equipped with synchronized biogeochemical sensors.

Time Range

June 12 to June 19, 2025.

Freshness

Last updated 2026-03-17 14:29:02; freshness should be verified.

Geography

Dasha River Estuary, Shenzhen, China.