The Role of Clouds in Coral Bleaching Events Over the Great Barrier Reef

被引：9
作者：
Zhao, Wenhui [1 ,2 ]
Huang, Yi [2 ,3 ]
Siems, Steven [1 ,2 ]
Manton, Michael [1 ]
机构：
[1] Monash Univ, Melbourne, Vic, Australia
[2] ARC Ctr Excellence Climate Extreme, Melbourne, Vic, Australia
[3] Univ Melbourne, Melbourne, Vic, Australia
来源：
GEOPHYSICAL RESEARCH LETTERS | 2021年 / 48卷 / 14期
关键词：
Clouds; SST; the Great Barrier Reef; coral bleaching; ENSO; SURFACE-TEMPERATURE; SOLAR-RADIATION; CLIMATE-CHANGE; SEA; PATTERNS; WEATHER; ISLAND;
D O I：
10.1029/2021GL093936
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Thermal coral bleaching events (CBEs) over the Pacific, including those over the Great Barrier Reef (GBR), have commonly been linked to the El Nino-Southern Oscillation (ENSO), with bleaching reported to be a direct result of sea surface temperature (SST) anomalies driven by El Nino. However, such a relationship cannot explain CBEs that occurred during La Nina or the neutral phase of the ENSO. Here, we show that the GBR is characterized by a significant negative correlation between total cloud cover anomaly (TCCA) and lagged SST anomaly (SSTA) whose magnitude and spatial extent are greater than the SSTA-ENSO correlation. This significant negative TCCA-SSTA (lagged) correlation prevails over two-thirds of the study domain even after the ENSO signal is removed, which suggests that local-scale reduced cloud cover is a key component of the regional warm shallow water formation over the GBR and the occurrence of thermal CBEs.
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页数：10
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