Tag: Star Dune
New paper: Capturing complex star dune dynamics – repeated highly accurate surveys combining multitemporal 3D topographic measurements and local wind data
Morphologies of highly complex star dunes are the result of aeolian dynamics in past and present times. These dynamics reflect climatic conditions and associated forces like sediment availability and vegetation cover, as well as feedbacks with adjacent environments. However, an understanding of aeolian dynamics on star dune morphometries is still lacking sufficient detail, and their […]
Concluding field work in the dunes around Erg Chebbi
The last days of field work in Erg Chebbi continued at the star dune to wrap up final tasks: filling gaps in the data, adding some dune arms to the ground penetrating radar data, … All data acquisition at the star dune was concluded successfully, although the group was off to a late start. The […]
Halftime reports from Erg Chebbi
After three days of hard work in the field, Sunday was halftime workshop at HeidelErg. with diverse topics all around dunes, with and beyond the data collected in ErgChebbi. Manuel Herzog introduced the first results from the geophysical measurements with regards to dune stratification. Ground penetrating radar in combination with Electrical Resistivity Tomography already shows […]
First results of our multi-method field course in an aeolian sand dune field
During the first three days of the field course in Erg Chebi, data collection focussed on the star dune with groups of students applying different techniques of geophysical and topographic surveying. Today, data was checked to plan the remaining three field days. A recap of this intermediate data revision will follow. For today, we’d like […]
Multi-method field course in an aeolian sand dune field
This week, the research groups Geomorphology and 3DGeo of the Institute of Geography at Heidelberg University are conducting a field course in the aeolian sand dune field Erg Chebbi in Morocco. The current field course is the second edition of “HeidelErg“. The aim is to teach students different methods of data acquisition for physical geography, […]
HeidelErg – live from the Erg Chebbi in Morocco (#6): Exploring physical geography and 3D GIScience in an aeolian sand dune field.
Yesterday, the practical field trip in the Erg Chebbi ended and the majority of the group arrived safely in Heidelberg. Another part of the group and the equipment are still on their way back via car and ferry. After several days in the field, we are already very excited to start working on the large […]
HeidelErg – live from the Erg Chebbi in Morocco (#5): Exploring physical geography and 3D GIScience in an aeolian sand dune field.
On Thursday and Friday our group went further into the Erg in order to extend measurements from the last years on a large star dune arm and then spent one night in a dune camp. Yesterday was the last day of field work in the Erg.The TLS group completed the data acquisition on a star dune […]
HeidelErg – live from the Erg Chebbi in Morocco (#4): Exploring physical geography and 3D GIScience in an aeolian sand dune field.
During the last three days of field work we not only acquired a lot of data at different sites in the Erg Chebbi. We also experienced various weather conditions including two sand storms, rain and sunny and hot days. Yesterday, one group measured ground control points for satellite and photogrammetric point cloud data with an […]
HeidelErg – live from the Erg Chebbi in Morocco (#3): Exploring physical geography and 3D GIScience in an aeolian sand dune field.
Data acquisition in the Erg Chebbi has now started. In different groups several measurement techniques (drilling, electrical resistivity tomography, ground penetrating radar, sediment analysis, RTK GNSS, terrestrial laser scanning) were applied. Find some impressions in the pictures below.
HeidelErg – live from the Erg Chebbi in Morocco (#2): Exploring physical geography and 3D GIScience in an aeolian sand dune field.
After the participants of the practical field training had arrived in Fès yesterday and spent the evening there, the group is now on the way to the Erg Chebbi east of the Anti-Atlas mountains. Thereby, the group passes various gemorphologic landscape units including the Western Meseta, Middle Atlas and High Atlas mountains. Moreover, we crossed […]
HeidelErg – live from the Erg Chebbi in Morocco (#1): Exploring physical geography and 3D GIScience in an aeolian sand dune field.
As part of the practical field training and the small research group “Erg Chebbi”, 16 students will explore physical geography and 3D GIScience in an impressive aeolian sand dune environment in Morocco from 5 October to 15 October. The Erg Chebbi is one of the smallest Ergs in the Sahara and is situated within the […]