The Dunes of Belvedere-San Marco of Aquileia: Integrating High-Resolution Digital Terrain Models and Multispectral Images with Ground-Penetrating Radar Survey to Map the Largest System of Continental Dunes of Northern Italy

被引：0

作者：

Vanzani, Federica ^{[1
]}

Fontana, Alessandro ^{[1
]}

Ronchi, Livio ^{[1
]}

Boaga, Jacopo ^{[1
]}

Chiarini, Veronica ^{[1
]}

Hajdas, Irka ^{[2
]}

机构：

[1] Univ Padua, Dept Geosci, Via G Gradenigo 6, IT-35131 Padua, Italy

[2] Swiss Fed Inst Technol, Ion Beam Lab, Otto-Stern-Weg 5, CH-8093 Zurich, Switzerland

来源：

REMOTE SENSING | 2024年 / 16卷 / 05期

关键词：

light detection and ranging (LiDAR); aeolian geomorphology; parabolic dunes; Friulian plain; Bora wind; Last Glacial Maximum; LAST GLACIAL MAXIMUM; RELATIVE SEA-LEVEL; PARABOLIC DUNES; COASTAL DUNES; CLIMATE; VISUALIZATION; VEGETATION; LOESS;

D O I：

10.3390/rs16050765

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The interpretation of high-resolution remote-sensed data (i.e., LiDAR-derived DTMs, aerial photos and satellite images), compared with ground-penetrating radar surveys, historical cartography, geomorphological surveys and stratigraphic data, allowed us to map a large system of dunes near the Grado-Marano Lagoon (NE Italy) and reconstruct its evolution. Remote sensing investigations allowed us to recognize, map and interpret the sandy reliefs as a field of continental aeolian landforms extending for over 15 km2 and consisting of parabolic dunes elongated in the WSW direction. Radar soundings, together with the description of stratigraphic sections and cores, documented the internal clinostratification of the dunes, supporting their aeolian origin. Radiocarbon dating documents that the dunes formed 22 ka ago, at the end of the Last Glacial Maximum, and probably evolved until the first part of the Late Glacial, when vegetation was scarce. The landforms were fed by the sands blown from a paleochannel of Isonzo River flowing eastward of the dune's field and blown by Bora. This is a very strong katabatic wind, still characterizing the area, but that was likely much stronger during last glaciation, when it was probably sustained by a stronger wind pattern in Central Europe.

引用

页数：28