Tropical observations of ocean and atmosphere to our far north

Observations of the daily cycles of convective storms and the mixing of heat in the atmosphere and ocean in our far northern waters.
Voyage No


19 Oct, 2019


17 Dec, 2019




Chief Scientist

Dr Susan Wijffels (Leg 1) / Dr Alain Protat (Leg 2)


Bureau of Meteorology (BOM)

Voyage summary

Research voyage from Darwin to Darwin to study the ocean and atmosphere in this region. The data collected will help improve weather and climate models. 

Accurate predictions of Australia’s regional weather and climate require accurate representations of atmospheric and oceanic processes in our prediction models over the entire globe, and not just over Australia. However, some global locations are more important than others, and one is the region known as the ‘Maritime Continent’, comprising the islands and seas of Indonesia, Malaysia, New Guinea, and surrounds. This voyage will form part of a larger international effort to tackle the problems of the Maritime Continent in our models by making detailed observations of the daily cycles of convective storms and the mixing of heat in the atmosphere and ocean.

This voyage will be delivered in two legs, with a port visit in Darwin in between (on Monday 11 November).Two marine areas will be studied: the edge of the Northwest Shelf and north of the BOM operational radar at Warruwi (NT). In each area, a wide range of ocean and atmosphere data will be collected using equipment including RV Investigator weather radar, CTD, Triaxus, AIRBOX (a mobile air chemistry laboratory) and approximately 350 radiosondes (weather balloons).

The science team on this voyage includes 31 participants from 16 institutions (Leg 1) and 27 participants from 11 institutions (Leg 2).

Voyage outcomes

Summary of voyage outcomes - as well as voyage image gallery - will be published approximately one month after completion of the voyage.