| Title |
Characterization on the Variation of Streamflow at the Unit Watershed for the Management of Total Maximum Daily Loads -in Guem River Basin- |
| Authors |
박준대 ( Jun Dae Park ) ; 오승영 ( Seung Young Oh ) ; 최옥연 ( Ok Youn Choi ) |
| Keywords |
Spatial distribution; Streamflow; Temporal variation; Total Maximum Daily Loads (TMDLs); Unit watershed |
| Abstract |
The variation of streamflow is regarded as one of the most influential factors on the fluctuation of water quality in the stream. The characteristics of the variation should be taken into account in the plans for the management of Total Maximum Daily Loads (TMDLs). This study analysed and characterized spatial distribution and temporal variation of streamflow at each unit watershed in Guem-river basin. For the analysis of the distribution of streamflow, the type and the extent of the distribution were investigated for the unit watershed. For the analysis of the variation, short and long term changes of streamflow were examined. The result showed that most of the distributions were not log-normalized and the extent of variation tends to be greater at the unit watershed placed on the tributaries in the basin. A kind of margin could be granted to the unit watershed involving high variations so as to establish the water quality goal and load allotment more reasonably and effectively in view of whole waterbody. |