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[1] We assess d 18 O‐ and Mg/Ca–based paleothermometry in relation to seasonal variations in the shell fluxes of the surface‐dwelling planktonic foraminifera G. ruber and G. trilobus. Using deep‐moored sediment traps in the Mozambique Channel, upstream of the Agulhas Current, we find a distinct antiphase response to the annual cycle in sea surface(More)
Variability of the Leeuwin current (LC) off Western Australia is a footprint of interannual and decadal climate variations in the tropical Indo-Pacific. La Niña events often result in a strengthened LC, high coastal sea levels and unusually warm sea surface temperatures (SSTs), termed Ningaloo Niño. The rarity of such extreme events and the response of the(More)
Many marine fishes have life history strategies that involve ontogenetic changes in the use of coastal habitats. Such ontogenetic shifts may place these species at particular risk from climate change, because the successive environments they inhabit can differ in the type, frequency and severity of changes related to global warming. We used a(More)
Inshore massive corals often display bright luminescent lines that have been linked to river fl ood plumes into coastal catchments and hence have the potential to provide a long-term record of hinterland precipitation. Coral luminescence is thought to result from the incorporation of soil-derived humic acids transported to the reef during major fl ood(More)
Near-shore coral reef systems are experiencing increased sediment supply due to conversion of forests to other land uses. Counteracting increased sediment loads requires an understanding of the relationship between forest cover and sediment supply, and how this relationship might change in the future. Here we study this relationship by simulating river flow(More)
The Pacific Decadal Oscillation (PDO) is a large-scale climatic phenomenon modulating ocean-atmosphere variability on decadal time scales. While precipitation and river flow variability in the Great Barrier Reef (GBR) catchments are sensitive to PDO phases, the extent to which the PDO influences coral reefs is poorly understood. Here, six Porites coral(More)
Coral cores provide vital climate reconstructions for site-specifi c temporal variability in river fl ow and sediment load. Yet, their ability to record spatial differences across multiple catchments is relatively unknown. Here, we investigate spatial linkages between four coral proxies of terrestrial runoff and their relationships between sites. Coral(More)
We investigate Pacific Decadal Oscillation (PDO) signals recorded by two bimonthly resolved coral d 18 O series from La Réunion and Ifaty (West Madagascar), Indian Ocean from 1882 to 1993. To isolate the main PDO frequencies, we apply a band pass filter to the time series passing only periodicities from 16 to 28 years. We investigate the covariance patterns(More)
We examine the relationship between three tropical and two subtropical western Indian Ocean coral oxygen isotope time series to surface air temperatures (SAT) and rainfall over India, tropical East Africa and southeast Africa. We review established relationships, provide new concepts with regard to distinct rainfall seasons , and mean annual temperatures.(More)
The Pacifi c Ocean modulates Australian and North American rainfall variability on multidecadal timescales, in concert with the Pacifi c Decadal Oscillation (PDO). It has been suggested that Pacifi c decadal variability may also infl uence Indian Ocean surface temperature and rainfall in a far-fi eld response, similar to the El Niño Southern Oscillation(More)