Hi Vitor,

The U.S. Geological Survey has a program called HYSEP that performs hydrograph
separation to estimate the baseflow component of streamflow.

http://water.usgs.gov/software/HYSEP/

I have not used this program so perhaps others can comment on their
experience(s) with it or suggest other software to use.

Best regards,
Glenn
HydroSOLVE, Inc.
AQTESOLV v4.5 (Aquifer Test Analysis Software)
AQTESOLV: http://www.aqtesolv.com/

--- In hydrologymodel@..., "Filho das Pedras" <vitor.v.v@...>
wrote:
>
> Hello to everyone!
>
> My name is Vitor, and I'm a researcher in CETEC, a scientific research
center in Brazil.
> I'm seeking for a software that is able to separate a streamflow hydrograph
into its base-flow and surface-runoff components. Someone know?
>
> Thanks,
> Vitor Vieira Vasconcelos
>