Dr. Ulf Mallast

Contact

Department Groundwater Remediation
Helmholtz Centre
for Environmental Research - UFZ
Theodor-Lieser-Str.4
06120 Halle (Saale), Germany

Tel: +49 (0)345 558-5210
Fax: +49 (0)345 558-5559
ulf.mallast@ufz.de

Persönliches Bild

Academic CV

since 01/2013

Postdoctoral research fellow at the Helmholtz Centre for Environmental Research - UFZ

 
Involvement in following projects: 

SPACES South Africa (BMBF funded)

Title: Groundwater / Seawater Interaction along the South African South Coast and its Effects on Sustainable Coastal and Water Resource Management

Own contribution:

  • Satellite-based multi-temporal and large scale SST analysis to detect potential SGD sites
  • Lineament analysis to highlight potential groundwater flow and to facilitate the multi-temporal SST analysis
  • Multi-sensor mineralogical classification


DESERVE - Dead Sea Research Venue (Helmholtz Association of German Research Centers funded)

Title: Sinkholes, Their Formation, and Estimation of Vulnerable (WP1)

Own contribution:

  • Deformation monitoring using satellites (InSAR) and UAV (unmanned aerial vehicle)
  • Small scale bathymetric and thermal investigation to outline potential marine prolongation of terrestrial deformation zones

02/2009-01/2013

PhD student at the Helmholtz Centre for Environmental Research - UFZ, Department Catchment Hydrology

Preliminary Title:
Current status and long-term insights into the western Dead Sea groundwater system using multi-sensoral remote sensing

Supervision:
Prof. Dr. Richard Gloaguen (TU Bergakademie Freiberg)
Prof. Dr. Martin Sauter (Georg-August-University Göttingen)

10/2008-01/2009

Research assistant at the Department Hydrogeology

Task: Land use classification of the Al Arab catchment based on Landsat ETM+ data

4/2008 - 10/2008

Diploma thesis:
A hydrological event modeling of the Río Maipo watershed (Chile) based on remote sensing data

Supervision:
Prof. Dr. Ulrike Weiland
Dr. Ellen Banzhaf

10/2001 - 10/2008

Undergraduate Studies at the Institute of Geography, University of Leipzig, Germany
(Minors: Biology and Environmental Engineering)

01/2007 and 01/2006

Internship in Viñales and workshop in Havanna (Cuba) within the DAAD – project – Subject-based patnership with universities in developing countries between the Institute of Geography of the University Leipzig and the Department of Geography of the University Havanna

10/2006-12/2006

Internship at the Regional Office for Agriculture of Saxony (LfL) Department 42 Soilculture

04/2006-07/2006

Internship at the Helmholtz Centre - UFZ Department Urban Ecology, Environmental Planning and Transport (SUV) within the project Megacities


Research Interests

  • Coupling of scale-independent satellite- and airborne-based SST analysis (mono- and multi-temporal) with in-situ data (222Rn, 18O, 2H) for submarine groundwater discharge detection and characterization
  • Small scale thermal application using UAVs for marine, soil moisture and vegetation purposes
  • Hydro- (geo)logical and geomorphological remote sensing
  • Combination of remote sensing and hydrologial modeling

Publications

Journal publication / Proceedings

Mallast, U., Schwonke, F., Gloaguen, R., Geyer, S., Sauter, M. and Siebert, C.  (2013). Airborne thermal data identify groundwater discharge at the north-western coast of the Dead Sea. Remote Sensing.


Mallast, U., Siebert, C., Wagner, B., Sauter, M., Gloaguen, R., Geyer, S., Merz, R., (2013). Localisation and temporal variability of groundwater discharge into the Dead Sea using thermal satellite data. Environmental Earth Sciences (online first). doi: 10.1007/s12665-013-2371-6

Mallast, U., Siebert, C., Schwonke, F., Wagner, B., Rödiger, T., Geyer, S., Gloaguen, R., Sauter, M., Kühn, F. & Merz, R., (2012). Application of Thermal Data for Groundwater Studies in Arid Regions at the Example of the Dead Sea. In: Rausch, R., Schüth, C., Himmelsbach, T. (Eds.), Hydrogeology of Arid Environments. Borntraeger Science Publishers, Hannover.

Illiger, P., Hese, S., Mallast, U., Rödiger, T. Siebert, C. Geyer, S. & Merz, R., (2012). Skalen-übergreifende zeitliche und räumliche Analyse von RapidEye und MODIS Daten hinsichtlich der Vegetationsentwicklung im mediterranen bis ariden Raum in Israel/ Palästina. In: Borg, E., Dea-delow, H., Johnson, R. (Eds.), RapidEye Science Archive (RESA) - Vom Algorithmus zum Pro-dukt – 4. RESA Workshop. GITO mbH Verlag, Berlin. 

Mallast, U., Gloaguen, R., Geyer, S., Rödiger, T. & Siebert, C. (2011): Derivation of groundwater flow-paths based on semi-automatic extraction of lineaments from remote sensing data, Hydrol. Earth Syst. Sci., 15, 2665-2678

Mallast, U.,Schwonke, F., Siebert, C., Maraschek, U., Kemper, G., Geyer, S., & Kühn, F. (2011): Hochauflösende flugzeuggestützte Thermalfernerkundung zur Kartierung submariner und terrestrischer Grundwasserquellen in der hochsalinaren Uferzone des Toten Meeres. Beiträge zur DGPF-Jahrestagung, DGPF Tagungsband 20/2011.

Mallast, U. (2007): Verhaltenszeiträume - Ordnung im Prozessablauf dynamischer Systeme. Leipziger Geowissenschaften, Band 18, S. 147 – 156.

Book chapter contribution

Krüger, J. & Mallast, U., (2010): Modellierung zu zwei fundamentalen ökologischen Fragestellungen. In: Neumeister, H. (Ed.) (2010): Oberflächennahe Erdsysteme. Projekte Verlag. Halle.

Conference Presentation / Poster

Mallast, U., Schubert, M., Schmidt, A., Knöller, K., Stollberg, R., Siebert, C. & Merz, R. (2012). Combination of satellite based thermal remote sensing and in situ radon measurements and field observations to detect (submarine) groundwater discharge. AGU Fall Meeting 2012, 03.-07.12.2012, San Francisco, USA.

Mallast, U., Siebert, C., Gloaguen, R., Wagner, B., Schwonke, F., Rödiger, T., Geyer, S., Krieg, R., Sauter, M., Kühn, F. & Merz, R. (2012). Remote sensing application possibilities on groundwater characterization in arid regions at the example of the Dead Sea. EGU 2012, 22.-27.04.2012, Wien, Östereich. 

Mallast, U., Siebert, C., Schwonke, F., Wagner, B., Rödiger, T., Geyer, S., Gloaguen, R., Sauter, M., Kühn, F. & Merz, R., (2012). Application of thermal data for groundwater studies in arid regions at the example of the Dead Sea. Hydrogeology of Arid Environments. 14.-17.03.2012, Hannover.

Illiger, P., Hese, S., Mallast, U., Rödiger, T. Siebert, C. Geyer, S. & Merz, R., (2012). Skalen-übergreifende zeitliche und räumliche Analyse von RapidEye und MODIS Daten hinsichtlich der Vegetationsentwicklung im mediterranen bis ariden Raum in Israel/ Palästina. 4. RESA Workshop. 21.-22.03.2012, Neustrelitz.  

Mallast, U., Gloaguen, R., Geyer, S., Rödiger, T. & Siebert, C. (2010): Derivation of ground water flow paths in the western catchment of the Dead Sea based on semi-automatically extracted lineaments. IWRM Karlsruhe. 23.-27.11.2010, Karlsruhe.

Mallast, U., Gloaguen, R., Geyer, S., Rödiger, T. & Siebert, C. (2010): Derivation of ground water flow paths in the western catchment of the Dead Sea based on semi-automatically extracted lineaments. GeoDarmstadt 2010. 10.-13.10.2010, Darmstadt.

Banzhaf, E., Ebert, A., Höfer, R. & Mallast, U. (2008): Detecting land use dynamics, their impacts on natural hazards and vulnerability in the fast growing city of Santiago de Chile with high resolution remote sensing data and GIS. - EARSeL Joint Workshop Remote Sensing: New Challenges of High Resolution. 5.-7.3.2008, Bochum.