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EBISCO - Energy budget in snow covered forests

Description: Das Projekt "EBISCO - Energy budget in snow covered forests" wird vom Umweltbundesamt gefördert und von Eidgenössische Forschungsanstalt für Wald, Schnee und Landschaft durchgeführt. Background: The evolution and ablation of the seasonal snowcover in a forest is very different compared to snow in the open. A canopy may absorb radiation, dampen turbulent fluxes and intercept precipitation. Given a heterogeneous canopy structure, the energy and mass budget of a forest snowcover typically features a highly complex spatio-temporal dynamics. As boreal and subalpine forests cover large areas of the Northern Hemisphere land surface, snow-forest processes have an important influence on weather and hydrology, even at hemispheric scales. Approach / Measurements: In this project we focus on the radiation balance inside subalpine forests in winter. A novel instrument was developed to capture the spatio-temporal variability of radiation below the canopy: A four-component net-radiometer is periodically moved back and forth along a 10-m transect. As reference, two further net-radiometer are installed, one instrument above the canopy and another instrument on a nearby clear-cut site. Sites: The radiation measurements are carried out on two long-term research sites. Between 2003 and 2007 the measuring device was installed at our research site in Alptal at 1200 m a.s.l.. Since then the radiation measurements are being continued at our research site Seehornwald in Davos at 1650 m a.s.l. Link to other projects: This project contributes to the development of our snowcover models Snowpack and Alpine3D. These models include a detailed description of snow-forest processes and have been tested against data from this project. Furthermore, we provided data for the international snow model intercomparison project SnowMIP2.

Types:
SupportProgram

Origin: /Bund/UBA/UFORDAT

Tags: Davos ? Baumkrone ? Messgerät ? Messstation ? Vegetation ? Erdwärmenutzung ? Globale Umweltfazilität ? Absorption ? Fällungsreaktion ? Gebäude ? Strahlenexposition ? Strahlungsmessung ? Winter ? Projektförderung ? Alphastrahlung ? Evolution ? Gammastrahlung ? Infrarotstrahlung ? Kahlschlag ? Betastrahlung ? Daten ? Neutronenstrahlung ? Röntgenstrahlung ? Schnee ? Standortwahl ? Strahlenschaden ? Energie ? Verwitterung ? Pflanzenorgan ? Bevölkerungsentwicklung ? Energiebilanz ? Messung ? Forschungsprojekt ? Licht ? Bauvorhaben ? Forschung ? Globalstrahlung ? Hydrologie ? Ionisierende Strahlung ? Nichtionisierende Strahlung ? Niederschlag ? Pilotprojekt ? Radioaktivität ? Schadstoffbildung ? Solarstrahlung ? Strahlungshaushalt ? Turbulenz ? Überwinterung ? Wärmestrahlung ? Wetter ? Abdeckung ? Wald ? Landschaft ? UV-Strahlung ? Energie ? Hintergrundstrahlung ? Fluss ? Kosmische Strahlung ? Elektromagnetische Strahlung ? Atmosphäre ? Bauelement ? Strahlung ? neu ? Land ? wichtig ? beweglich ? Alte Wirkstoffe [EU-Biozidrichtlinie] ? Ökosystemkomponente ? bewegt ? ein- ? gemischt ? Oberfläche ? Schallabstrahlung ? Werkzeug ? Projekt ? Bestandteil ? jahreszeitlich ? Projekt-UVP ? Budget ? Annäherung ? Referenz ? nördlich ? unter ? vergleichen ? Dauer ? Zeitschrift ? Hemisphäre [nördlich] ? Historische Entwicklung ?

License: cc-by-nc-nd/4.0

Language: Englisch/English

Organisations

Time ranges: 2003-01-01 - 2011-12-31

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Quality score

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