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Digital Terrain Model by airborne LIDAR technique: an essential tool for hydrologic risks assessment

A. COVASNIANU1, M. CAZACU2, N. LIBRALESSO3, L. GALISSON3, M. MEMIER3, I. BALIN4,*

Affiliation

  1. University of “Al. I . Cuza” Faculty of Geography – Geology, Iaşi, Iaşi, Romania
  2. University of “Al. I. Cuza” Faculty of Physics Iaşi, Iaşi, Romania
  3. SINTEGRA SARL, Avenue du Taillefer, BP 3, 38241 MEYLAN Cedex
  4. EnviroScopY SA, PSE(A)-EPFL, 1015 Lausanne, Switzerland

Abstract

Simulations of the hydrological risks and thus the decisions of assessment strategies are crucial in the context of extreme meteorological events due to the consequences of the fast changes in the climate. The remote sensing methods as LIDAR backscatter technique are allowing the elaboration of a high precision ( 5 cm vertical and 3 points/m2 horizontal resolutions) Digital Terrain Model (DTM) as basis of the hydrological modeling. Here is presented the airborne LIDAR technique, the usefulness of the DTM outputs for hydrologic applications and the potential application for the Romanian Danube Flood Plain assessment strategy..

Keywords

DTM, LIDAR, hydrological risk modeling, Danube Flood Plain, climate change, Extreme events.

Submitted at: Aug. 1, 2007
Accepted at: Nov. 16, 2007

Citation

A. COVASNIANU, M. CAZACU, N. LIBRALESSO, L. GALISSON, M. MEMIER, I. BALIN, Digital Terrain Model by airborne LIDAR technique: an essential tool for hydrologic risks assessment, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 11, pp. 3529-3532 (2007)