| Vol. 24 (2001) | |||
- Wasserhaushalt und Stofftransport im
Aliakmonasgebiet (Nordwest-Griechenland)
[Water Budget and Solute Transport in the Aliakmonas Area (North Western Greece)]
Zagana, Eleni (2001), 236 p., 105 Fig., 50 Tab., Attachm.
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Abstract
Wasserhaushalt und Stofftransport im Aliakmonasgebiet
(Nordwest-Griechenland)
[Water Budget and Solute Transport in the Aliakmonas Area (North Western
Greece)]
Eleni Zagana
Abstract: Hydrological, hydrochemical and solute transports investigations
have been carried out in the Aliakmonas river basin in northern Greece.
With the help of the computer programm MODBIL (UDLUFT, 1995) a water budget
for subcatchment areas as well as for the whole catchment area were calculated.
Groundwater recharge derived from the water balance model amounted to
172 mm/y for the northernmost part of the catchment and decreased to 131
mm/y and 83 mm/y further east and south. For the whole river basin the
modelled runoff reached 357 mm/y compared to 325 mm/y measured at the
gauging station Ilarion. Hydrochemical investigations confirmed the pattern
of groundwater recharge within the basin. A preliminary cluster analysis
yielded an aggregation of water samples into end members and their respective
mixtures, representing the geogenic influences within the basin. Hydrochemical
profiles along the Aliakmonas river showed a lateral subsurface influx
from carbonatic aquifers in the upper part of the Aliakmonas river. While
the hydrochemical study revealed significant influx from the northwestern
molasse along the middle reach of the river Aliakmonas, contributions
from ophiolite areas become dominant in the lower part. The load for all
major elements was calculated and analysed as a function of river discharge
in order to identify their geogenic or anthropogenic origin. The type
of concentrations/discharge relationship pointed to a geogenic origin
for the most of the major elements. The load of all elements increased
along the river.
Paper language: german; german
abstract
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