The Umitaka-maru UM 08/09 cruise collected atmospheric aerosol data in the Southern Ocean. Measurements include aerosol number size distributions, scattering and absorption coefficients, and size-segregated chemical analysis of particles and gases. The dataset was last updated on February 4, 2009.
Use Cases
- Modeling aerosol optical properties based on scattering and absorption coefficient measurements.
- Analyzing the chemical composition of aerosols based on size-segregated ionic constituent data.
- Studying aerosol number size distributions using data from optical particle counters.
- Investigating atmospheric gas concentrations, such as SO2 and NH3, alongside aerosol data.
- Calculating aerosol optical thickness under clear sky conditions using sunphotometer data.
Strengths
- Includes multiple measurement types: aerosol size distributions, optical coefficients, and chemical analysis.
- Data is size-segregated into four particle diameter ranges (<0.2, 0.2-2, 2-8, >8 um).
- Real-time data collection enabled targeted sampling for micrograph analysis.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Last updated 2009-02-04 23:59:59.999000; freshness should be verified.
Provenance
- Source
- SCIOPS
- Collection Method
- Data collected during the Umitaka-maru UM 08/09 cruise using optical particle counters, condensation particle counters, integrating nephelometers, particle soot/absorption photometers, impactors, and a sunphotometer.
- Geography
- Southern Ocean