Area-averaged surface fluxes over the litfass region based on eddy-covariance measurements
| Autor: | Jens Bange, Peter Zittel, Ulrich Weisensee, W.M.L. Meijninger, Frank Beyrich, Andreas Ludi, Matthias Mauder, Sven Huneke, Jens-Peter Leps, Thomas Foken, H. Lohse, Dmitrii Mironov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Meteorologie en Luchtkwaliteit
Atmospheric Science 010504 meteorology & atmospheric sciences Meteorology Meteorology and Air Quality Planetary boundary layer 0207 environmental engineering Eddy covariance hapex-mobilhy 02 engineering and technology Land cover Sensible heat turbulent fluxes Atmospheric sciences 01 natural sciences law.invention law Latent heat water-vapor fluxes boreal forest land-surfaces Leaf area index 020701 environmental engineering Water content 0105 earth and related environmental sciences large-aperture flevoland field experiment boundary-layer 15. Life on land heterogeneous surface Scintillometer Environmental science aircraft measurements |
| Zdroj: | Beyrich, Frank; Leps, Jens-Pete; Mauder, Matthias; Bange, Jens; Foken, Thomas; Huneke, Sven; Lohse, Horst; Lüdi, Andreas; Meijninger, Wouter M.L.; Mironov, Dmitrii; Weisensee, Ulrich; Zittel, Peter (2006). Area-Averaged Surface Fluxes Over the Litfass Region Based on Eddy-Covariance Measurements. Boundary layer meteorology, 121(1), pp. 33-65. Dordrecht: Springer 10.1007/s10546-006-9052-x Boundary-Layer Meteorology 121 (2006) 1 Boundary-Layer Meteorology, 121(1), 33-65 |
| ISSN: | 0006-8314 |
| DOI: | 10.1007/s10546-006-9052-x |
| Popis: | Micrometeorological measurements (including eddy-covariance measurements of the surface fluxes of sensible and latent heat) were performed during the LITFASS-2003 experiment at 13 field sites over different types of land use (forest, lake, grassland, various agricultural crops) in a 20 × 20 km2 area around the Meteorological Observatory Lindenberg (MOL) of the German Meteorological Service (Deutscher Wetterdienst, DWD). Significant differences in the energy fluxes could be found between the major land surface types (forest, farmland, water), but also between the different agricultural crops (cereals, rape, maize). Flux ratios between the different surfaces changed during the course of the experiment as a result of increased water temperature of the lake, changing soil moisture, and of the vegetation development at the farmland sites. The measurements over grass performed at the boundary-layer field site Falkenberg of the MOL were shown to be quite representative for the farmland part of the area. Measurements from the 13 sites were composed into a time series of the area-averaged surface flux by taking into account the data quality of the single flux values from the different sites and the relative occurrence of each surface type in the area. Such composite fluxes could be determined for about 80% of the whole measurement time during the LITFASS-2003 experiment. Comparison of these aggregated surface fluxes with area-averaged fluxes from long-range scintillometer measurements and from airborne measurements showed good agreement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|