Determination of amount of land subsidence based on INSAR and LiDAR monitoring for a dike strengthening project
| Autor: | M. de Koning, J. K. Haasnoot, R. R. van Buuren, M. Weijland, C. Bisschop |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Proceedings of the International Association of Hydrological Sciences, Vol 382, Pp 57-62 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2199-8981 2199-899X |
| DOI: | 10.5194/piahs-382-57-2020 |
| Popis: | For the dike strengthening project Krachtige IJsseldijken Krimpenerwaard (KIJK) a study has been undertaken to optimize the amount of land subsidence. Based on archive information originally a subsidence rate of 11 mm yr−1 is used in the design calculations. This means that for a 50-year period an additional 0.55 m must be considered which does not comply with the macro-stability problems of the dike. Based on INSAR and LiDAR measurement data and reanalysing the archive data, the rate of subsidence is determined at an average of 8 mm yr−1. This could mean a reduction of 27 % on the amount of soil needed to balance subsidence. |
| Databáze: | Directory of Open Access Journals |
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