JP 3 - THE SECOND INTERNATIONAL INDIAN OCEAN EXPEDITION (IIOE-2) AND RELATED OCEANIC AND COUPLED ATMOSPHERIC RESEARCH IN THE INDIAN OCEAN (IAPSO, IAMAS)

Convenor – Nick D’Adamo
Co-convenors – Juliet Hermes, Christopher Duncombe Rae, Tamaryn Morris, Rajan Sivaramakrishnan

The Second International Indian Ocean Expedition (IIOE-2: 2015-20) was launched in Goa, India, on 4 December 2015. It is being guided by a Steering Committee Chaired by the IIOE-2’s founding co-sponsors: UNESCO Intergovernmental Oceanographic Commission (IOC); Scientific Committee on Oceanic Research (SCOR); and Indian Ocean Global Ocean Observing System (IOGOOS) Regional Alliance. The IIOE-2 science objectives are framed by an inter-disciplinary IIOE-2 Science Plan (Hood et al, 2015) developed under the auspices of SCOR, and being effected under an Implementation Strategy (www.iioe-2.incois.gov.in).

The IIOE-2 is five decades on from the first coordinated basin-wide IIOE investigation of the Indian Ocean undertaken during 1959-65 under SCOR and IOC. It will again consist of sub- to basin-wide surveys and process studies, cutting across coupled oceanic/climatic characterisation, including physical and biogeochemical oceanography, modelling and knowledge transfer through capacity development, in order to foster a lasting legacy that spans across scientifically developed to less developed communities.

The symposium aims to distil Indian Ocean science from across the underpinning interests of IAMAS, IAPSO and IAGA, as relevant to the cross-disciplinary objectives of the IIOE-2 Science Plan. This will take place through the eyes of its six key science themes: Human impacts; Boundary current dynamics, upwelling variability and ecosystem impacts; Monsoon variability and ecosystem response; Circulation, climate variability and change; Extreme events and their impacts on ecosystems and human populations; Unique geological, physical, biogeochemical and ecological features of the Indian Ocean. The way in which specific research questions will be addressed in IIOE-2 includes via collaborative multi-institutional and multi-national efforts, such as through the Eastern Indian Ocean Upwelling Research Initiative (EIOURI), already having a science plan, and its emerging kindred equivalent in the Western Indian Ocean (WIOURI).

This symposium occurs 2 years after the launch of IIOE-2, constituting a significant scientific gathering for IIOE-2 to review the most recent research findings in the context of our current scientific knowledge of the Indian Ocean and to highlight the scientific challenges and multi-disciplinary approach being addressed in IIOE-2. There will also be an underlying focus on future research and opportunities within the context of IIOE-2.