the great progresses have been made in the application of RS and GIS in hydrology. Especially
from several years ago
an integration of RS and GIS with hydrological models had become technically feasible
so the studies on hydrology came into a new era. This paper reviews on the roots of hydrological GIS
the application of RS and GIS in hydrology and review on the integration of RS and GIS with hydrology. It can be concluded that: In the future
hydrological modeling will be more global
more distributed
and more sophisticated. In this situation
the integration of RS and GIS with hydrology will not only speed up the research on hydrological but also play a great role in water resources management.