| Summary: | Credit Australia’s Integrated Marine Observing System (IMOS) is enabled by the National Collaborative Research Infrastructure Strategy (NCRIS). It is operated by a consortium of institutions as an unincorporated joint venture, with the University of Tasmania as Lead Agent. Credit Bureau of Meteorology (BOM) Credit Australian Marine National Facility (MNF) This dataset contains environmental observations as well as ship parameters (such as speed and direction). Enhancement of Measurements on Ships of Opportunity (SOOP)- Air Sea Flux (ASF) R.V. Southern Surveyor collects underway meteorological and oceanographic observations during scientific voyages in the oceans adjacent to Australia. Data streams are fed into the existing ship data management system, and broadcast via satellite back to Australia 3-hourly. The observations are quality controlled at the Bureau of Meteorology and air-sea fluxes calculated using the COARE Bulk Flux algorithm. A daily file of 1-minute averages of the observations are generated shortly after 0000UTC and provided to eMII. The data is contained in NetCDF format files and consists of environmental observations as well as ship parameters (such as speed and direction). Wind is observed with two different sensors, and the relative (observed) and true (relative to fixed earth) wind speed and direction provided. Air temperature and humidity is observed on the port and starboard of the main mast. Short-wave (sunlight) and long-wave (infra-red radiation or heat, from sky and clouds) is observed on the port and starboard side of the monkey island (above the bridge). Precipitation is observed with an optical rain-gauge and traditional siphon gauge from the foremast. Instrument meta-data and QC flags are also contained in the files.
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