Posters

 

2012

NEW! Liener T., Hammerle A., Williams M., Scharnagl B., Themeßl M., Gobiet A., Wohlfahrt G. (2012) Carbon storage potential of a managed mountain grassland - Inverse modelling and uncertainty analysis. European Geophysical Union 2012 General Assembly, 22 - 27 April 2012, Vienna, Austria.

NEW! Hörtnagl L., Wohlfahrt G. (2012) Interannual and seasonal variability of CH4 and N2O exchange over a temperate mountain grassland. European Geophysical Union 2012 General Assembly, 22 - 27 April 2012, Vienna, Austria.

NEW! Irschick C., Mayr S., Wohlfahrt G. (2012) The response of European tree species to drought: a meta-analysis. EGU2012-9592, European Geophysical Union 2012 General Assembly, 22 - 27 April 2012, Vienna, Austria.

 

NEW! Walser M., Bamberger I., Hörtnagl L., Wohlfahrt G., Hansel A. (2012) Drought induced methanol emission from grassland. European Geophysical Union 2012 General Assembly, 22 - 27 April 2012, Vienna, Austria.

 

NEW! Hammerle A., Gentsch L., Barthel M., Siegwolf R., Sturm P., Knohl A. (2012) Leaf oxygen isotope exchange in water vapour and carbon dioxide of Fagus sylvatica under field conditions. European Geophysical Union 2012 General Assembly, 22 - 27 April 2012, Vienna, Austria.

 

2011

Wohlfahrt G., Brilli F., Hörtnagl L., Xu X., Bingemer H., Hansel A., Loreto F. (2011) Carbonyl sulfide (COS) as a tracer for canopy photosynthesis, transpiration and stomatal conductance: potential and limitations. AGU fall meeting, 5‑9 December 2011, San Francisco, CA/USA.

Irschick C., Hammerle A., Carli E., Eliskases C., Frischmann S., Fritsch U., Gobiet A., Haas H., Kapelari S., Norz J., Themeßl M., Zebisch M., Wohlfahrt G. (2011) GrassClim - Interactive Effects of changes in climate and management on yield and CO2 source/sink strength of grassland ecosystems in the Alps. AGU fall meeting, 5‑9 December 2011, San Francisco, CA/USA.

Hörtnagl L., Bamberger I., Graus M., Ruuskanen T.M., Schnitzhofer R., Hansel A., Wohlfahrt G. (2011) Acetone and acetaldehyde exchange above a managed temperate mountain grassland. AGU fall meeting, 5‑9 December 2011, San Francisco, CA/USA.

Wohlfahrt G., Brilli F., Hörtnagl L., Xu X., Bingemer H., Hansel A., Loreto F. (2011) Carbonyl sulfide (COS) as a tracer for canopy photosynthesis, transpiration and stomatal conductance: potential and limitations. 3rd iLEAPS Science Conference, 18-23 September 2011, Garmisch-Partenkirchen, Germany.

Bamberger I., Hörtnagl L., Ruuskanen T., Schnitzhofer R., Müller M., Graus M., Karl T., Hansel A., Wohlfahrt G. (2011) Grassland: Not only a source for VOCs. 3rd iLEAPS Science Conference, 18-23 September 2011, Garmisch-Partenkirchen, Germany.

 

Irschick C., Carli E., Eliskases C., Frischmann S., Fritsch U., Gobiet A., Haas H., Kapelari S., Norz J., Themeßl M., Zebisch M., Wohlfahrt G. (2011) GrassClim - Interaktive Effekte von Klimawandel und Bewirtschaftung auf den Ertrag und die Kohlendioxidsenken/quellenstärke von Grünland. 12. Österreichi-scher Klimatag, 21-22 September 2011, Vienna, Austria.

Hörtnagl L., Bamberger I., Graus M., Ruuskanen T., Schnitzhofer R., Hansel A. and Wohlfahrt G. (2011) Acetone and acetaldehyde exchage above a managed temperate mountain grassland. EGU2011-2244, European Geophysical Union 2011 General Assembly, 03 - 08 April 2011, Vienna, Austria.

Dobesberger P., Zeidler A., Wohlfahrt G. (2011) Calibration and Comparison of three SVAT (Surface-Vegetation-Atmosphere Transfer) models. EGU2011-10117, European Geophysical Union 2011 General Assembly, 03 - 08 April 2011, Vienna, Austria.

 

Hörtnagl L., Bamberger I., Graus M., Ruuskanen T., Schnitzhofer R., Müller M., Hansel A. and Wohlfahrt G. (2011) Biotic, abiotic and management controls on methanol exchange above a temperate mountain grassland. 5th International PTR-MS conference, 26 January - 02 February 2011, Obergurgl, Austria.

Bamberger I., Hörtnagl L., Ruuskanen T., Schnitzhofer R., Müller M., Graus M., Karl T., Hansel A. and Wohlfahrt G. (2011) Grassland: a source and sink of VOCs. 5th International PTR-MS conference, 26 January - 02 February 2011, Obergurgl, Austria.

Ruuskanen T., Müller M., Schnitzhofer R., Karl T., Graus M., Bamberger I., Hörtnagl L., Brilli F., Wohlfahrt G. and Hansel A. (2011) Emission and deposition of VOC from/to a mountain grassland: an eddy covariance case study using a PTR-TOF. 5th International PTR-MS conference, 26 January - 02 February 2011, Obergurgl, Austria.

 

 

2010

Dobesberger P. (2011) A Methodology for determining the Impacts of a Changing Climate on Natural Hazards. Mountain Risks: Bringing Science to Society International Conference, 24-26 November 2010, Firenze, Italy.

 

Wohlfahrt G., Hammerle A., Haslwanter A., Hörtnagl L., Irschick C. (2010) Breathing of the Biosphere A Decade of Ecosystem-Atmosphere Trace Gas Exchange Measurements at the LTER Austria Site Neustift . International Conference of the Austrian Long-Term Ecosystem Research Network, 02 November 2010, Vienna, Austria.

Bamberger I., Hörtnagl L., Schnitzhofer R., Graus M., Ruuskanen T., Müller M., Dunkl J., Hansel A., Wohlfahrt G. (2010) BVOC fluxes from growing and cut grass above a mountain meadow. EGU2010-4532, European Geophysical Union 2010 General Assembly, 02–07 May 2010, Vienna, Austria.

Müller M., Graus M., Ruuskanen T.,Schnitzhofer R., Bamberger I., Kaser L., Hörtnagl L., Wohlfahrt G., Karl T., Hansel A. (2010) First eddy covariance flux measurements of methanol by PTR-TOF. EGU2010-3606, European Geophysical Union 2010 General Assembly, 02–07 May 2010, Vienna, Austria.

Hörtnagl L., Bamberger I., Graus M., Ruuskanen T., Schnitzhofer R., Müller M., Hansel A., Wohlfahrt G. (2010) Biotic, abiotic and management controls on methanol fluxes above a temperate mountain grassland. EGU2010-4462, European Geophysical Union 2010 General Assembly, 02–07 May 2010, Vienna, Austria.

Irschick C., Haslwanter A., Hammerle A., Wohlfahrt, G. (2010) Regional variability of grassland CO2 fluxes in Tyrol/Austria. EGU2010-3916, European Geophysical Union 2010 General Assembly, 02–07 May 2010, Vienna, Austria.

Haslwanter A., Hammerle A., Wohlfahrt G. (2010) Scale effects on the controls on mountain grassland leaf stomatal and ecosystem surface conductance to water vapour. EGU2010-3924, European Geophysical Union 2010 General Assembly, 02–07 May 2010, Vienna, Austria.

Hammerle A., Wohlfahrt G., Williams M. (2010) Modelling Carbon Storage of a Temperate Mountain Grassland as Affected by Management. Swiss Global Change Day 2010, 20 April 2010, Bern, Switzerland.

 

 

2009

Hörtnagl L., Clement R., Graus M.,Hammerle A., Hansel A., Wohlfahrt G. (2009) Dealing with disjunct concentration measurements in eddy covariance applications: a comparison of available approaches with particular reference to VOC fluxes measured with a PTR-MS. EGU2009-4023, European Geophysical Union 2009 General Assembly, 19–24 April 2009, Vienna, Austria.

Hammerle A., Hörtnagl L., Wohlfahrt G. (2009) Using broad-band reflectance indices to estimate carbon dioxide fluxes of a temperate mountain grassland. EGU2009-4876, European Geophysical Union 2009 General Assembly, 19–24 April 2009, Vienna, Austria.

Wohlfahrt G., Hörtnagl L., Bamberger I., Schnitzhofer R., Dunkl J., Hammerle A., Graus M., Hansel A. (2009) Methanol emissions from a grassland: a role of ozone stress? EGU2009-4195, European Geophysical Union 2009 General Assembly, 19–24 April 2009, Vienna, Austria.

 

 

2008

Arnone J.A. III, Jasoni R.J., Larsen J.D., Fenstermaker L.F., Wohlfahrt G.(2008) Atmospheric-ecosystem CO2 exchange in sparse arid shrublands across the Great Basin USA over multiple years: identifying patterns and mechanisms. AGU fall meeting, 15‑19 December 2008, San Francisco, CA/USA.

Wohlfahrt G., Hoertnagl L., Bamberger I., Schnitzhofer R., Dunkel J., Hammerle A., Graus M., Hansel A. (2008) The VOC-Ozone connection: a grassland case study. AGU fall meeting, 15‑19 December 2008, San Francisco, CA/USA.

Hammerle A., Hörtnagl L., Wohlfahrt G. (2008) Using broad‑band reflectance indices to estimate carbon dioxide fluxes from a temperate mountain grassland. AGU fall meeting, 15‑19 December 2008, San Francisco, CA/USA.

Hörtnagl L., Bamberger I., Schnitzhofer R., Dunkel J., Hammerle A., Graus M., Hansel A., Wohlfahrt G. (2008) The VOC-Ozone connection: a grassland case study. Marie Curie iLeaps Conference 16-20 November 2008, Hyeres, France.

Lasslop G., Reichstein M., Papale D., Richardson A., Wohlfahrt G. (2008) Comparison of daytime and nighttime data based estimates of GPP and Reco. 6th CarboEurope IP meeting, 29 September – 2 October 2008, Jena, Germany.

Myklebust M., Hipps L., Huc R., Misson L., Ryel R., Wohlfahrt G., Chojnicki B., Curtis P., Delpierre N., Frokling S., Granier A., Lafleur P., Aurela M., Bolstad P., Cavaleri M., Chambers J., Desai A., Van Gorsel E., Ito A., Loescher H., Oberbauer S., Pumpanen J., Ryan M., Saigusa N., Vesala T. (2008) Is the underestimate of ecosystem respiration measured by eddy covariance related to LAI ? ADVEX final workshop, 30 June‑1 July 2008, Gembloux, Belgium.

Wohlfahrt G., Hammerle A., Haslwanter A., Bahn M., Tappeiner U., Cernusca A. (2008) The sensitivity of the net ecosystem CO2 exchange of a temperate mountain grassland to weather. COST Strategic Workshop 'Global Change & Sustainable Development', 7–9 April 2008, Innsbruck, Austria.

Wohlfahrt, G.; Hammerle, A.; Haslwanter, A.; Bahn, M.; Tappeiner, U.; Cernusca, A. (2008) Diffuse vs. direct radiation effects on the ecosystem CO2 exchange of a mountain grassland: a combined theoretical and experimental study. EGU2008-A-01150, European Geophysical Union 2008 General Assembly, 13–18 April 2008, Vienna, Austria.

Hörtnagl, L.; Hammerle, A.; Wohlfahrt, G. (2008) Dealing with disjunct concentration measurements in eddy covariance applications: a comparison of available approaches. EGU2008-A-01152, European Geophysical Union 2008 General Assembly, 13–18 April 2008, Vienna, Austria.

Pilloni, S.; Heinl, M.; Hammerle, A.; Gianelle, D.; Vescovo, L.; Tappeiner, U.; Wohlfahrt, G. (2008) Estimating the Plant Area Index and Phytomass of Mountain Grasslands from Multi spectral Reflectance. EGU2008-A-01413, European Geophysical Union 2008 General Assembly, 13–18 April 2008, Vienna, Austria.

Hammerle A., Bahn M., Tappeiner U., Cernusca A., Wohlfahrt G. (2008) Die Auswirkungen der Bewirtschaftung auf das Kohlenstoff-speicherpotential einer Mähwiese: Messungen und Modelsimulationen. 10.Österreichischer Klimatag, 13-14 March 2008, Vienna, Austria.

Kapelari S., Santeler E., Neuner K., Hammerle A., Wohlfahrt G. (2008) Klimawandel: Wie sag' ich es meinen ... SchülerInnen?. 10.Österreichischer Klimatag, 13-14 March 2008, Vienna, Austria.

 

2007

Wohlfahrt G., Hammerle A., Haslwanter A., Bahn M., Tappeiner U., Cernusca A. (2007) Eddy Covariance Measurements of CO2 and Energy Fluxes above Mountain Grasslands in the Austrian Alps: Challenges and Results. AGU fall meeting 2007, 10‑14 December 2007, San Francisco, USA.

Wohlfahrt G., Hansel A., Niinemets Ü. (2007) Measuring and modelling fluxes of volatile organic compounds (VOC) between mountain grassland ecosystems and the atmosphere. Marie Curie-iLEAPS workshop “Towards a process‑based description of trace gas emissions in land surface models”, 16-19 October 2007, Helsingborg, Sweden.

Wohlfahrt G., Hammerle A., Haslwanter A., Bahn M., Tappeiner U., Cernusca A. (2007) Interannual variability of the net ecosystem CO2 exchange of a temperate mountain grassland. Conference “Managing Alpine Future, 15-17 October 2007, Innsbruck, Austria.

Leitinger, G.; Wohlfahrt, G.; Tappeiner, U. (2007) Simulating the Effects of Land-Use Changes on Landscape-Scale Water Cycles in Alpine Landscapes. EGU2007-A-03875, European Geophysical Union 2007 General Assembly, 15–20 April 2007, Vienna, Austria.

Pilloni, S.; Heinl, M.; Hammerle, A.; Gianelle, D.; Vescovo, L.; Tappeiner, U.; Wohlfahrt, G. (2007) Estimating the Plant Area Index of Mountain Grasslands from Multi spectral Reflectance. EGU2007-A-01271, European Geophysical Union 2007 General Assembly, 15–20 April 2007, Vienna, Austria.

 

before 2007

Wohlfahrt G., Anfang Ch., Bahn M., Haslwanter A., Schmitt M., Cernusca A. (2003) Net Ecosystem CO2 Exchange of Mountain Grasslands Differing in Land Use.Chapman Conference on Ecosystem Interactions with Land Use Change, Santa Fee, 14-18 June 2003.

 

Wohlfahrt G., Anfang Ch., Bahn M., Droesler M., Haslwanter A., Newesely Ch., Pfadenhauer J, Schmitt M, Cernusca A. (2004) Quantifying Ecosystem Respiration of a Mountain Meadow: a Multiple Constraints Approach using Eddy Covariance, Chambers and Modelling. EGU 1st general assembly, Nice/France, 25-30 April 2004

Wohlfahrt G., Bahn M., Haslwanter A., Newesely Ch., Cernusca A. (2005) Estimation of Daytime Ecosystem Respiration to determine Gross Primary Production of a Mountain Meadow. EGU General Assembly, Vienna/Austria, 2005

Hammerle A., Wohlfahrt G., Schmitt M., Haslwanter A., Bahn M., Cernusca A. (2005) Eddy covariance measurements on a steep mountain slope. EGU General Assembly, Vienna/Austria, 2005

Wohlfahrt G., Hammerle A., Haslwanter A., Munk K. (2006) Comparative analysis of the net ecosystem CO2, H2O and energy exchange of mountain meadows. NitroEurope kick-off meeting, 13-17 March 2006, Garmisch-Partenkirchen, Germany.

Hammerle A., Haslwanter A., Schmitt M., Bahn M., Cernusca A., Wohlfahrt G. (2006) Eddy covariance measurements of carbon dioxide, latent and sensible energy fluxes above a meadow on a mountain slope. EGU06-A-00324, European Geophysical Union 2006 General Assembly, 02–07 April 2006, Vienna, Austria.

Schmitt M., Bahn M., Wohlfahrt G., Cernusca A. (2006) Land use and phenology affect the net ecosystem exchange of CO2 in temperate mountain grasslands. EGU06-A-00780, European Geophysical Union 2006 General Assembly, 02–07 April 2006, Vienna, Austria.

Schmitt M., Bahn M., Wohlfahrt G., Cernusca A. (2006) Land use and phenology affect the net ecosystem exchange of CO2 in temperate mountain grasslands. EGU06-A-00780, European Geophysical Union 2006 General Assembly, 02–07 April 2006, Vienna, Austria.