
Figure 1
The tracks of TC Hibaru and the TC centers are shown by black lines and red dots, respectively. The black dashed line frames the study area. Box A: 3.5° N-6° N, 83.5° E-88.5° E.The position of the Argo is indicated by the black star.
Table 1
Position, time and MWS (maximum wind speed) of TC Hibaru.
| LATITUDE (°N) | LONGITUDE (°E) | TIME | MWS (M•S–1) |
|---|---|---|---|
| 4.0 | 89.8 | 2005/01/11/18 | 10.289 |
| 4.4 | 89.9 | 2005/01/12/00 | 10.289 |
| 4.7 | 89.7 | 2005/01/12/06 | 10.289 |
| 5.0 | 89.4 | 2005/01/12/12 | 10.289 |
| 5.3 | 88.9 | 2005/01/12/18 | 10.289 |
| 5.2 | 88.1 | 2005/01/13/00 | 12.861 |
| 5.4 | 87.5 | 2005/01/13/06 | 15.433 |
| 5.6 | 87.2 | 2005/01/13/12 | 15.433 |
| 5.9 | 87.3 | 2005/01/13/18 | 15.433 |
| 5.8 | 87.6 | 2005/01/14/00 | 15.433 |
| 5.4 | 87.6 | 2005/01/14/06 | 15.433 |
| 5.1 | 89.6 | 2005/01/14/12 | 18.005 |
| 5.1 | 87.4 | 2005/01/14/18 | 18.005 |
| 5.0 | 87.1 | 2005/01/15/00 | 18.005 |
| 5.0 | 86.9 | 2005/01/15/06 | 18.005 |
| 4.8 | 86.6 | 2005/01/15/12 | 18.005 |
| 4.5 | 86.4 | 2005/01/15/18 | 18.005 |
| 4.2 | 86.4 | 2005/01/16/00 | 18.005 |
| 4.5 | 86.3 | 2005/01/16/06 | 18.005 |
| 4.6 | 85.9 | 2005/01/16/12 | 18.005 |
| 4.9 | 85.6 | 2005/01/16/18 | 15.433 |
| 4.7 | 85.2 | 2005/01/17/00 | 12.861 |
| 4.3 | 85.1 | 2005/01/17/06 | 10.289 |

Figure 2
Surface Chl-a distribution on January 14 (a) and January 20 (b). Black arrows indicate sea surface currents.

Figure 3
The change curve of two-day averaged Chl-a concentration in Box A from January 1 to February 7.

Figure 4
The vertical distribution of Chl-a concentration in Box A from January 1 to 30.

Figure 5
Time series of Chl-a fluxes in the eastern (a), southern (b), western (c) and northern (d) sides of Box A from January 1 to 28.

Figure 6
Sea surface height (SSH) and current on January 11, 15, 17 and 19 (a, b, c, d). The sea current is represented by a black arrow, and the color bar represents the SSH. On January 25 and 26, the currents at a depth of 75 m are represented by red arrows (e, g).The black arrows (f, h) shows the direction of the surface current.

Figure 7
The vertical distribution of temperature over time in Box A from January 1 to 30 .

Figure 8
Barrier layer thickness calculated from Argo data in Box A on January 14 and 29.

Figure 9
The spatially averaged precipitation for Box A from January 1 to 31.

Figure 10
Curve of the spatial average PAR over time in Box A from Jan. 1 to Feb. 7.

Figure 11
Vertical profile of the Argo buoyancy frequency of Box A, which includes six time points on January 9, 14, 19, 24 and 29.

Figure 12
Time series of spatially averaged vorticity in Box A from January 1 to 31.

Figure 13
Schematic diagram of mechanisms for the first (a) and second (b) phytoplankton blooms in Box A.
