Cooperation Project With Indonesian Partner University Strengthens Alumni Network

RWTH has a strong alumni network in Indonesia, which was clearly evident at the GetIn-CICERO Conference held in July 2022. About 120 people came to Yogyakarta, Java, to discuss battery recycling, geohazards, geothermal energy, and resources as well as water supply tasks at the “German-Indonesian Talk on Research for Society”. RWTH co-hosted this two-day conference with Universitas Gadjah Mada (UGM) and its alumni there. The conference was intended to define the topics of further joint research after five years of development of the BMBF-funded research activities GetIn-CICERO. read more

RWTH Aachen University together with Universitas Gadjah Mada brought together more than 100 experts from business, politics and science in Yogyakarta, Indonesia on July 25 and 26 under the title “German-Indonesian Talk on Research for Society”.

Discussions were held on the topics “Making Water Supply resilient for Future”, “Circular Economy of Metals” and “Sustainable use of Georesources: Mining – Managing Geohazards” with the aim of outlining joint research areas and describing a road map for future cooperation between German and Indonesian researchers. read more

Link of the news are:

https://www.fgeo.rwth-aachen.de/cms/geowissenschaften-und-geographie/Die-Fachgruppe/Aktuell/Meldungen/Aktuelles/~vtipk/Besuch-des-Bundespraesidenten-an-RWTH-Pa/

News media links access

1. https://ugm.ac.id/id/berita/22605-ugm-terima-kunjungan-presiden-jerman

2. http://kmp.im/AGDMd5

3. https://www.detik.com/jateng/jogja/d-6132705/presiden-jerman-kunjungi-ugm-pastikan-kerja-sama-tak-sekedar-logo

4. http://ugm.id/frankwaltersteinmeierUGM

Yan Restu Freski, Christoph Hecker, Markvan der Meijde, Agung Setianto

Abstract

Understanding alteration processes in geothermal systems through remote sensing can help assess the prospectivity of a geothermal field. As a result of which, alteration detection and mapping are vital in the early exploration stage. However, many geothermal surface manifestations, which are evidence of alteration processes, often occur in densely vegetated areas, particularly in tropical regions. Current lithological mapping techniques using passive remote sensing systems can have problems with vegetation canopy completely blocking the signal. LiDAR, an active remote sensing system, can be a solution since it can (partially) penetrate vegetation canopy. It collects information from the ground in 3D-coordinated points with laser return intensity (LRI) values. In this study, we test for the first time the possibility of differentiating hydrothermally altered rocks through their LRI values in a laboratory experiment. We scanned selected altered and unaltered rocks under different moisture and temperature conditions using a terrestrial laser scanner (at 1550 nm wavelength). Our results show LRI values follow the degree of alteration: strongly altered rocks have the highest LRI, unaltered rocks are at the lowest, and weakly altered rocks show an intermediate response. Varying moisture conditions decrease LRI values for all rocks, but the relative LRI order due to alteration remains intact. We recorded no significant temperature effect on LRI values for any of the alteration stages. Our results provide the first evidence that rocks with different hydrothermal alteration phases can be distinguished by their LRI values which opens up the potential for airborne mapping of geothermal surface manifestations with LRI. read more

Malte J. M. Gurgel, M. Sc. | Univ.-Prof. Dr.-Ing. Axel Preuße
September 2021

Modern, integrated methods are increasingly being used for the three-dimensional acquisition of underground cavities. In addition to active methods such as LiDAR, photogrammetric methods like Structure from Motion (SFM) could provide significant value for image-based visualization.

Ongoing research at the Institute for Mine Surveying, Mining Subsidence Engineering and Geophysics in Mining at RWTH Aachen University is dealing with the implementation of high-resolution and survey-precise cavity registration for planning, decision-making and visualization purposes, by providing georeferenced point clouds and meshed 3D models. The research is carried out as a funded doctoral project by Malte J. M. Gurgel. read more

Find here the article Four Steps to Successful Higher Education Cooperation by Dr. Doni Prakasa Eka Putra published in the 27/2020 edition of NADI Magazine in which he writes on his thoughts how to collaborate with two well-known institutions in Germany, namely RWTH Aachen and Leibniz-Zentrum für Marine Tropenforschung (ZMT).

The full NADI magazine can be downloaded from the DAAD Jakarta website here.