Fig 1.
Sampling locations and track of TC Ita April 11 to 13, 2014 [14, 15].
Table 1.
Sampling, analysis and meteorological observations of Cyclone Ita.
Fig 2.
Radar images of TC Ita at 11/4 22:10 AEST (A), 12/4 07:20 AEST (B), 12/4 09:50 AEST (C), 12/4 20:00 AEST (D) [18].
Figure is for representative purposes and is similar but not identical to the original image. The approximate position of the eye of the cyclone is indicated by a red circle. The red arrows indicate a spiral rainband with intense rainfall with the most depleted isotopic composition.
Fig 3.
δ18O values in discrete 12 hour rainfall samples (n = 85) collected from 27 sites during the north to south passage of TC Ita from April 11–13, 2014.
Fig 4.
Evolution in space and time of δ18O values in discrete (a) 12 hour (n = 85) and (b) 1 hour (n = 50) rainfall samples collected from 27 sites from April 11–13, 2014.
δ18O values of samples taken at different times are shown as a function of distance and direction from the eye of TC Ita (at centre of plot) at the time of sampling. Some plot positions were moved slightly in order to separate overlapping data.
Fig 5.
δ18O, δ2H (30 s interval) and d-excess (moving average of five 30 s data points) in water vapour and rainfall and air pressure and rainfall intensity at Trinity Beach.
Red triangles indicate values of discrete 1 hour rainfall samples from Trinity Beach. Time markers: 1: First influence of cyclonic circulation; 2: Start of main rain event; 3 to 4: Spiral rain band activity; 5: End of rain event.