
Tobias Biermann
Research engineer

Turbulent flux observations and modelling over a shallow lake and a wet grassland in the Nam Co basin, Tibetan Plateau
Author
Summary, in English
The Tibetan Plateau plays an important role in the global water cycle and is strongly influenced by climate change. While energy and matter fluxes have been more intensely studied over land surfaces, a large proportion of lakes have either been neglected or parameterised with simple bulk approaches. Therefore, turbulent fluxes were measured over wet grassland and a shallow lake with a single eddy-covariance complex at the shoreline in the Nam Co basin in summer 2009. Footprint analysis was used to split observations according to the underlying surface, and two sophisticated surface models were utilised to derive gap-free time series. Results were then compared with observations and simulations from a nearby eddy-covariance station over dry grassland, yielding pronounced differences. Observations and footprint integrated simulations compared well, even for situations with flux contributions including grassland and lake. The accessibility problem for EC measurements on lakes can be overcome by combining standard meteorological measurements at the shoreline with model simulations, only requiring representative estimates of lake surface temperature.
Publishing year
2014
Language
English
Pages
301-316
Publication/Series
Theoretical and Applied Climatology
Volume
116
Issue
1-2
Document type
Journal article
Publisher
Springer
Topic
- Earth and Related Environmental Sciences
Keywords
- Tibet
- eddy covariance
- lake
- turbulent fluxes
Status
Published
ISBN/ISSN/Other
- ISSN: 1434-4483