Measurements from 2005 capture aerosol optical properties in the Southern Ocean, collected by the SCIOPS organization. Data includes aerosol size distribution, scattering coefficient, and absorption coefficient. Instruments used were an optical particle counter, integrating nephelometer, and particle soot/absorption photometer.
Use Cases
- Modeling aerosol radiative forcing using scattering_coefficient and absorption_coefficient data.
- Analyzing marine aerosol size_distribution to understand particle sources and sinks.
- Correlating measured optical properties with wind_direction data to filter ship exhaust contamination.
- Validating satellite aerosol retrievals over the Southern Ocean with in-situ scattering and absorption measurements.
Strengths
- Data collection includes three distinct optical property measurements: size distribution, scattering, and absorption.
- Sampling protocol specified air intake at 10 meters above sea surface to reduce direct sea spray influence.
- Contamination control measures exclude data when wind direction is between 240-360 degrees relative to the ship.
Limitations
- Dataset is from a single time point (2005), limiting analysis of temporal trends.
- Spatial coverage is restricted to the ship's track in the Southern Ocean.
- Sample size and total measurement duration are unknown.
Provenance
- Source
- SCIOPS via NASA EarthData.
- Collection Method
- In-situ measurements using an optical particle counter, integrating nephelometer, and particle soot/absorption photometer, with air sampled at 20 LPM.
- Time Range
- 2005
- Freshness
- null
- Geography
- Southern Ocean, from a ship-based measurement platform.