Fig 1.
Mekong River Basin: (a) the natural basin; (b) the gauge locations used in the simulations.
Fig 2.
GBHM structure.
Table 1.
Discharge station information.
Fig 3.
Comparison of simulated and observed discharge values at six main stream stations: the left ones are results of the model driven by TRMM3B42V7 data while the right ones are results of the model driven by gauge rainfall data.
Table 2.
Discharge simulation results of two calibration and validation experiments: RE, NASH and RMSE values (m3/s).
Fig 4.
NASH (a), RE (b) and RMSE (c) values from two simulated discharge experiments for each year during 2002–2012: the solid lines represent the TRMM simulation while the dashed lines represent the gauge simulation.
Fig 5.
Daily discharge Flow Duration Curves for observation, TRMM simulation and gauge simulation data at six main stream stations from 1998 to 2012.
Table 3.
RE values at each station for 2 year, 4 year and 8 year calibration periods for the TRMM simulation and gauge simulation.
Bold numbers represent a better result compared to the other simulation (i.e., less variation).
Table 4.
NASH values at each station for 2 year, 4 year and 8 year calibration periods for the TRMM simulation and gauge simulation.
Bold numbers represent a better result compared to the other simulation (i.e., decrease less or increase more).
Fig 6.
Input rainfall field (a) and generated runoff (b) difference between the two experiments.
Fig 7.
Rainfall field from June 1999: (a) rainfall field interpolated using gauge observations and the gauges used in June 1999; (b) and (d) provide magnified images of the two black rectangles in (a); (c) and (e) show the rainfall fields for the same two rectangles interpolated from TRMM 3B42V7 data.
Fig 8.
Pixel-point comparison between gauge data and TRMM 3B42V7 data at the 62 gauges.
Fig 9.
Comparison of yearly rainfall between gauge rain data and TRMM 3B42V7 at the 62 stations.