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| Titel |
Preliminary results of land subsidence monitoring project in Konya Closed Basin between 2006–2009 by means of GNSS observations |
| VerfasserIn |
A. Ustun, E. Tusat, S. Yalvac |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 6 ; Nr. 10, no. 6 (2010-06-10), S.1151-1157 |
| Datensatznummer |
250008223
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| Publikation (Nr.) |
 copernicus.org/nhess-10-1151-2010.pdf |
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| Zusammenfassung |
| One of the potential dangers that might arise as a result of
bringing excessive amounts of groundwater to the surface of the
Earth is land subsidence. Such surface deformations – these
velocities may vary from a few millimetres to a few metres per year
– do the greatest damage to infrastructure facilities and buildings
in residential units. Agricultural lands, in which excessive
irrigation is performed, and densely populated cities are more
likely to suffer from land subsidence. Konya Closed Basin (KCB),
where a rapid groundwater withdrawal has been observed during the
last 30–40 years, is faced with such a threat. In this study, the
possibility of the occurrence of land subsidence, related to
groundwater withdrawal for the KCB, is assessed and the geodetic
studies conducted up to now, with the intention of identifying land
subsidence, are introduced. The vertical displacements of between
-12 and -52 mm/year have been detected through GNSS
observations collected on the 6-point test network. The land
subsidence phenomenon has been developing in the areas where the
groundwater is extensively used for irrigation and daily life. The
results support the findings derived from the historical leveling
records and point out the need of an extended study based on both
GNSS and InSAR techniques for spatial and temporal mapping of land
subsidence in the KCB. |
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