(Questions? contact Mac Sisson!)
The salinity intrusion model (A.Y. Kuo and C. S. Fang, 1972; refined in 1991 by Kuo and Sisson) is a long-term, time-dependent model of the mass-balance equation averaged over a tidal cycle and solved numerically by an implicit finite difference scheme.
Input data is quite simply: 1) the daily records of discharge (at Hanover, Va. on the Pamunkey and at Beaulahville, Va. on the Mattaponi) provided by theUSGS (see website http://www-va.usgs.gov) and 2) salinity data at the York River mouth collected by the Bay Monitoring Program and vertically averaged.
Daily averages of salinity are predicted at 102 transect locations. Recently a 5 year run (1991-1995) was made for Dr. Jim Perry and Graduate Student Rose Laird of RMAP and the results for the York-Pamunkey system are shown below:
|
Year |
1991 |
1992 |
1993 |
1994 |
1995 |
