Vortragsreihe Ökologie und Umweltforschung SS 2016

Thursday 12:00-13:30 H6, Geo

If you would like to get an e-mail reminder, please join our mailinglist


Dr. Julian Klaus
Catchment and Eco-Hydrology Research Group, Luxembourg Institute of Science and Technology (Homepage)
Thursday, 09.06.2016 12:00-13:30 H6, GEO:

Stable Isotopes in Hydrology: Progress in concepts and process understanding

Stable isotopes of the water molecule (18O, 2H) are commonly used in various hydrological applications. They are a powerful tool to better understand the movement of water from their source in the ocean until they leave catchments via streamflow and evapotranspiration.

In recent years, significant progress was made in measuring techniques and in the fundamental theory of stable isotope application in hydrology. This presentation will show research that employed stable isotopes in precipitation and streamflow studies. At first, a new high-frequency data set of stable isotopes in precipitation will be presented, including measurement techniques and the influence of hydro-meteorological parameters on long term and short term variations.

Furthermore, new theoretical concepts to investigate water flowpaths and catchment transit times using stable isotopes will be outlined. One approach relies on the relationship of δ2H to δ18O (via the evaporation water line) in different components of the water cycle that eventually allows a better conceptual understanding of water flowpaths. The second approach is a novel semi-parametric model that is used to calculate δ18O of streamwater and eventually infer the catchment transit time and transit time distribution. These two approaches are applied in fundamentally different landscapes. Based on these applications, we can conclude that different physiographic catchment characteristics require partly different methodological stable isotope approaches to decipher catchment function.

 

*** invited by Luisa Hopp, Hydrology



More information:Export as iCal: Export iCal
zurück zur Liste
Upcoming ...


BayCEER Colloquium:
Th. 2019-12-12
Iron, sulfur and a pinch of antimony - new perspectives on secondary mineral pathways and metalloid mobility
Ecological-Botanical Garden:
Su. 2020-01-05
Auf ins Neue! Winterspaziergang im ÖBG
Su. 2020-01-05
Konzert: Musikalischer Jahresbeginn mit den Rockin`Dinos
Geographisches Kolloquium:
Tu. 2019-12-10 now
Intensify or diversify? How agriculture affects biodiversity and ecosystem processes in European farmland
Tu. 2019-12-17
The meat of the Anthropocene: Food, capital and the globalisation of industrialised animal killing
BayCEER Blog
24.05.2019
Stoichiometric controls of C and N cycling
07.05.2019
Flying halfway across the globe to dig in the dirt – a research stay in Bloomington, USA
07.05.2019
EGU – interesting research and free coffee
16.04.2019
Picky carnivorous plants?
RSS Blog as RSS Feed
Weather research site
Luftdruck (356m): 981.9 hPa
Lufttemperatur: 3.6 °C
Niederschlag: 1.6 mm/24h
Sonnenschein: 4 h/d
Wind (Höhe 17m): 11.3 km/h
Wind (Max.): 24.8 km/h
Windrichtung: W

...more
This site makes use of cookies More information