MJO induced diurnal sea surface temperature variations off northwest shelf of Australia observed from Himawari geostationary satellite

High frequency coupling between the tropical upper ocean and atmosphere at diurnal time scales is being recognised as important for the behaviour of large scale climate modes such as Madden Julian Oscillation (MJO). Eastern Indian Ocean warm pool and Northwest shelf of Australia is strongly influenced by the MJO activities. In this study, we use the hourly Himawari-8 geostationary satellite SST data in the Northwest shelf of Australia to understand the modulation of the amplitude of SST diurnal variations with the MJO evolution during the two austral summer seasons of 2015-16 and 2016-17. The high temporal and spatial resolutions of the Himawari-8 SST data were able to capture the temporal and spatial variability of diurnal SST. This study indicates that the diurnal SST variation is a key indicator of and thus plays a fundamental role in the air-sea interactions between MJO and upper-ocean. Our results show that MJO onset (active phase) is preceded by strong diurnal SST variations in MJO suppressed phase. SST diurnal variations are modulated by wind-induced latent heat flux and solar radiation variations. The record El Nino warming event in 2015-16 may have modulated the MJO activities. In addition, we also observe notable spatial variability of diurnal variations of SST in the region, especially during the 2015-16 El Nino event.


<b>Citation:</b> Z. Huang, M. Feng, MJO induced diurnal sea surface temperature variations off the northwest shelf of Australia observed from Himawari geostationary satellite, <i>Deep Sea Research Part II: Topical Studies in Oceanography</i>, Volume 183, 2021, 104925, ISSN 0967-0645, https://doi.org/10.1016/j.dsr2.2021.104925

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Date (Creation)
2019-01-24T10:00:00
Date (Publication)
2023-11-01T05:47:53
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/126583

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Role Organisation / Individual Name Details
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Huang, Z.
Author

Feng, M..

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Elsevier Ltd

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Deep-Sea Research Part II

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Volume 183, January 2021

Page

104925

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Completed
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Commonwealth of Australia (Geoscience Australia)

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Place and Communities Division

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Huang, Z.

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  • Oceans

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theme.ANZRC Fields of Research.rdf

  • EARTH SCIENCES

Product

  • Sea surface temperature - SST

Keywords

  • Madden Julian Oscillation - MJO

Instrument

  • Himawari 8

Place

  • northwest Australia

Keywords

  • geostationary satellite

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  • Published_External

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© Commonwealth of Australia 2021

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2018-11-01T00:00:00
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English
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Commonwealth of Australia (Geoscience Australia)

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This paper is the result of the collaboration between GA and CSIRO represented by Dr Ming Feng. The paper is published. Citation: Huang, Z., Feng, M. 2021. MJO induced diurnal sea surface temperature variations off the northwest shelf of Australia observed from Himawari geostationary satellite, Deep-Sea Research II, 183, 104925.

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Australian Government Security ClassificationSystem

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2018-11-01T00:00:00
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https://www.protectivesecurity.gov.au/Pages/default.aspx

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Unclassified

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urn:uuid/322d5d27-9ccc-4125-b3db-ccfc2db0cf9a

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English
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UTF8
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Commonwealth of Australia (Geoscience Australia)

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Huang, Z.

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Huang, Z.

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Journal Articles and Conference Papers

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Geoscience Australia - short identifier for metadata record with

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eCatId/126583

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/322d5d27-9ccc-4125-b3db-ccfc2db0cf9a

Date info (Creation)
2018-05-04T03:37:56
Date info (Revision)
2018-05-04T03:38:12

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AU/NZS ISO 19115-1:2014

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ISO 19115-1:2014

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ISO 19115-3

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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

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Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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Keywords

Himawari 8 Madden Julian Oscillation - MJO Sea surface temperature - SST geostationary satellite
theme.ANZRC Fields of Research.rdf
EARTH SCIENCES

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