Authors / CoAuthors
Huang, Z. | Leplastrier, A. | Xie, S. | Feng, M.
Abstract
Himawari-8, a geostationary satellite operated by the Japan Meteorological Agency, became operational in July 2015. The high frequency (10 min) and resolution (~2km) of Himawari-8 data provides an enormous opportunity for the monitoring and investigation of highly dynamic oceanographic phenomena. This presentation aims to demonstrate the value of himawari-8 SST data for studies of the Bonney Coast upwelling, East Australian Current (EAC) and Madden-Julian Oscillation (MJO) diurnal SST (dSST) variations. During the 2016–17 summer, we identified three distinct upwelling events along the Bonney Coast. Each event surpassed its predecessor in terms of area of influence, minimum temperature and duration. All of the three events developed quickly, with a 5-fold increase of spatial extent within the first 48 hours. The EAC’s areal extent mapped between July 2015 and Sept 2017 showed clear seasonal and intra-seasonal variations. During summer, the EAC and its extension frequently encroached into the coastal areas of northern NSW and eastern Tasmania. The encroachment to the coastal area of southern NSW was more sporadic. A composite analysis based on MJO phases during the summer seasons of 2015–16 and 2016–17 showed that the dSST typically peaked during phases 2 and 3 off the northwest shelf, prior to the onset of the active phases of MJO (phase 4). The analysis indicated that dSST is negatively correlated with the surface wind speed but positively correlated with short-wave latent heat flux. In future, these monitoring and analytical capabilities can be effectively implemented in Geoscience Australia’s Digital Earth Australia platform. Presented at the 2018 Australian Coastal and Oceans Modelling and Observations Workshop (ACOMO)
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document
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120801
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
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- theme.ANZRC Fields of Research.rdf
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- EARTH SCIENCES
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- sea surface temperature SST
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- diurnal sea surface temperature SST - dSST
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- geostationary satellite
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- Himawari-8
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- Published_External
Publication Date
2024-04-02T22:07:03
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Abstract for Australian Coastal and Oceans Modelling and Observations Workshop (ACOMO) 2018
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geoscientificInformation
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Australian Coastal and Oceans Modelling and Observations Workshop (ACOMO) 9-11 October 2018, Canberra ACT
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This abstract is to be submitted to Australian Coastal and Oceans Modelling and Observations Workshop (ACOMO) 2018, hosted by IMOS in Canberra. The presentation will report some results from several collaborative studies using himawari-8 data. The collaboration involves GA, UNSW Canberra and CSIRO.
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[-44.00, -9.00, 112.00, 154.00]
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