Li, M; Babel, W; Chen, X; Zhang, L; Sun, F; Wang, B; Ma, Y; Hu, Z; Foken, T: A 3-year dataset of sensible and latent heat fluxes from the Tibetan Plateau, derived using eddy-covariance measurements, Theoretical and Applied Climatology, 122, 457-469 (2015), doi:10.1007/s00704-014-1302-0
Abstract:

The Tibetan Plateau (TP) has become a focus of strong scientific interest due to its role in the global water cycle and its reaction to climate change. Regional flux estimates of sensible and latent heat are important variables for linking the energy and hydrological cycles at the TP’s surface. Within this framework, a 3-yr dataset (2008-2010) of eddy-covariance measured turbulent fluxes was compiled from four stations on the TP into a standardised workflow: corrections and quality tests were applied using an internationally-comparable software package. Second, the energy balance closure (CEB) was determined and two different closure corrections applied. The four stations (Qomolangma, Linzhi, NamCo and Nagqu) represent different locations and typical land surface types on the TP (high altitude alpine steppe with sparse vegetation, a densely-vegetated alpine meadow, and bare soil/gravel, respectively). We show that the CEB differs between each surface and undergoes seasonal changes. Typical differences in the turbulent energy fluxes occur between the stations at Qomolangma, Linzhi and NamCo, while Nagqu is quite similar to NamCo. Specific investigation of the pre-monsoon, the Tibetan Plateau summer monsoon, post-monsoon, and winter periods within the annual cycle reinforces these findings. The energy flux of the four sites is clearly influenced by the Tibetan Plateau monsoon. In the pre-monsoon period, sensible heat flux is the major energy source delivering heat to the atmosphere, whereas latent heat flux is greater than sensible heat flux during the monsoon season. Other factors affecting surface energy flux are topography and location. Land cover type also affects surface energy flux. The energy balance residuum indicates a typically-observed overall non-closure in winter, while closure (or “turbulent over-closure”) is achieved during the Tibetan Plateau summer monsoon at the Nagqu site. The latter seems to depend on ground heat flux, which is higher in the wet season, related not only to a larger radiation input but also to a thermal decoupling of dry soils. Heterogeneous landscape modelling using a MODIS product is introduced to explain energy non-closure.

There are additional file downloads belonging to this publication

Password
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
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): 959.0 hPa
Lufttemperatur: 8.2 °C
Niederschlag: 2.3 mm/24h
Sonnenschein: 5 h/d
Wind (Höhe 17m): 9.1 km/h
Wind (Max.): 20.9 km/h
Windrichtung: SW

...more
Niederschlag: 0.7 mm/24h
Sonnenschein: <1 h/d

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