 |
| Titel |
Integrated Hydro-geomorphological Monitoring System of the Upper Bussento river basin (Cilento and Vallo Diano Geopark, S-Italy) |
| VerfasserIn |
D. Guida, A. Cuomo, A. Longobardi, P. Villani, M. Guida, D. Guadagnuolo, A. Cestari, V. Siervo, G. Benevento, S. Sorvino, R. Doto, M. Verrone, A. De Vita, A. Aloia, P. Positano |
| Konferenz |
EGU General Assembly 2012
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250071558
|
|
|
|
|
|
| Zusammenfassung |
| The Mediterranean river ecosystem functionings are supported by river-aquifer interactions.
The assessment of their ecological services requires interdisciplinary scientific approaches,
integrate monitoring systems and inter-institutional planning and management. This poster
illustrates the Hydro-geomorphological Monitoring System build-up in the Upper Bussento
river basin by the University of Salerno, in agreement with the local Basin Autorities and in
extension to the other river basins located in the Cilento and Vallo Diano National Park
(southern Italy), recently accepted in the European Geopark Network. The Monitoring
System is based on a hierarchical Hydro-geomorphological Model (HGM), improved
in a multiscale, nested and object-oriented Hydro-geomorphological Informative
System (HGIS, Figure 1). Hydro-objects are topologically linked and functionally
bounded by Hydro-elements at various levels of homogeneity (Table 1). Spatial
Hydro-geomorpho-system, HG-complex and HG–unit support respectively areal
Hydro-objects, as basin, sector and catchment and linear Hydro-objects, as river, segment,
reach and section. Runoff initiation points, springs, disappearing points, junctions,
gaining and water losing points complete the Hydro-systems. An automatic procedure
use the Pfafstetter coding to hierarchically divide a terrain into arbitrarily small
hydro-geomorphological units (basin, interfluve, headwater and no-contribution areas, each
with a unique label with hierarchical topological properties. To obtain a hierarchy of
hydro-geomorphological units, the method is then applied recursively on each basin
and interbasin, and labels of the subdivided regions are appended to the existing
label of the original region. The monitoring stations are ranked consequently in
main, secondary, temporary and random and located progressively at the points or
sections representative for the hydro-geomorphological responses by validation control
and modeling calibration. The datasets are organized into a relational geodatabase
supporting tracer testings, space-time analysis and hydrological modeling. At the
moment, three main station for hourly streamflow measurements are located at the
terminal sections of the main basin and the two main sub-basin; secondary stations
for weekly discharge measurements are located along the Upper Bussento river
segment, upstream and downstream of each river reach or tributary catchments or karst
spring inflow. Temporary stations are located in the representative sections of the
catchments to detect stream flow losses into alluvial beds or experimental parcels in
the bare karst and forested sandstone headwaters. Streamflow measurements are
combined with geochemical survey and water sampling for Radon activity concentration
measurements. Results of measurement campains in Radon space-time distribution
within the basin are given in other contribution of same EGU session. Monitoring
results confirm the hourly, daily, weekly and monthly hydrological data and validate
outcomes of semi-distributed hydrological models based on previously time series,
allowing both academic consultants and institutional subject to extend the Integrated
Hydro-geomorphological Monitoring System to the surrounding drainage areas of the Cilento
and Vallo di Diano Geopark.
Keywords: River-aquifer interaction, Upper Bussento river basin, monitoring system,
hydro-geomorphology, semi-distributed hydrological model.
Table 1: Comparative, hierarchical Hydro-morpho-climate entities
Hierarchy levelArea
(Km2) Scale Orography Entity Climate
Entity Morfological Entity Areal Drainage
Entity Linear Drainage
Entity
VIII 106 1:15E6 Orogen Macroscale
α Morphological Region Hydrological Region
VII 105 1:10E6 Chain Sistem Macroscale
β Morphological Province Hydrological Province
VI 104 1:5E5 Chain Mesoscale
α Morphological Sistem Basin River
V 103 1:2,5E5Chain Segment Mesoscale
β Morphological Sub-systemSub-Basin Torrent
IV 100 1:1,0E5Orographic Group Mesoscale
γ Morphological Complex Basin Sector Mid Order Channel/
Segment
III 10 1: 5E4 Orographic System Microscale αMorphological Unit Watershed Low Order Channel/
Reach
II 1 1:2,5E3Orographic ComplexMicroscale βMorphological ComponentCatchment Transient Channel/
Pool
I 10-2 1:5E3 Orographic Unit Microscale γMorphological Element Hollow Zero Order Channel
PIC |
|
|
|
|
|
|