A colleague asked me to forward these position announcements (please do not send inquiries to me). POSITION ANNOUNCEMENT # 1 : MICROMETEOROLOGIST A full-time research position is available within the framework of a European research project on "Long term carbon dioxide and water vapour fluxes of European forests and interactions with the climate system". Research will focus on and duties include : (1 ) eddy covariance measurements of CO2, H2O and energy exchanges of two experimental forests, (2 ) validation of flux measurements and analysis of turbulence, (3 ) analysis of responses of water and carbon fluxes of the forests to climatic factors, and (4 ) validation of existing SVAT models and their use for interpreting fluxes. The research, led by R. Ceulemans (Antwerpen) and M. Aubinet (Gembloux) will be conducted at two experimental facilities of the Universities of Antwerpen and Gembloux, i.e. a Scots pine forest stand in the northern part of Belgium (in the Campine region north-east of Antwerpen) and a Norway spruce stand in the southern part of the country (near Vielsalm in the Belgian Ardennes). Experimental towers equiped with 3D sonic anemometers and fast-response CO2 and H2O analysers are operational on both sites. Within stand measurements will be collected by cooperating researchers and/or students (integration in an interdisciplinary research team), and well equiped laboratories are available. The candidate will benefit from working on two different forest sites in Belgium. Moreover, the research project fits within a larger network of twelve European laboratories working on the same topic. The candidate will participate in workshops with all European participants at least twice a year. The position is available 1 January 1996 for up to three years, and will be preferentially at the post-doctoral level. However, M.Sc. or Graduate Engineers willing to perform a Ph.D. (doctoral) programme over three years are also encouraged to apply and will have the possibility to carry out the research for their doctoral project. The candidate must have an eduactional background in micrometeorology or environmental physics and/or expertise with eddy covariance flux measurements. The candidate should be familiar with existing relevant software (as Edisol) and/or basic theory behind flux measurements of canopies. Applicants should also possess a high degree of initiative for planning and monitoring both sites, and should have a driving licence (frequent visits to both sites 100 km apart). Applicants should send a letter interest, curriculum vitae (resume), date of availability and names, fax numbers, e-mail and post addresses of three references by 30 October 1995 to : Prof. Reinhart Ceulemans, Department of Biology, University of Antwerpen, Universiteitsplein 1, B-2610 Wilrijk, Belgium. Fax : #32-3-820-2271; e-mail : rceulem@uia.ua.ac.be. POSITION ANNOUNCEMENT # 2 : STAND-SCALE MODELLER A full-time research position is available within the framework of a European research project on "Predicted Impacts of Rising Carbon Dioxide and Temperature on Forests in Europe at Stand Scale". Duties will include and research will focus on : (1 ) rationalisation and improvement of stand-scale models currently in use by the University of Antwerpen and by other European partners in the project toward a generic stand-scale model, (2 ) compilation of a data-base of parameters relating the responses of tree and stand scale processes to CO2 and temperature based on existing investigations and previously collected results by our group on poplar and Scots pine, (3 ) validation of the models by comparison against measured CO2 and water vapour fluxes of canopies, and against measurements on enclosed ecosystems, and (4 ) prediction of the likely impacts of rising CO2 and temperature on gas exchanges, carbon sequestration, tree growth and production for a few selected stands using one or more validated models. The research, led by R. Ceulemans (University of Antwerpen), will primarily build on the existing models (FRACPO, a fractal-based crown structure model and CANLIP, a canopy light interception model) and on the experimental results on the effects of elevated atmospheric CO2 on poplar that have been collected over the last four years. A Scots pine forest stand in the Campine region (north-east of Antwerpen) and a fast-growing poplar plantation in the northern part of Belgium will serve as selected model stands.Within stand measurements will be collected in the Scots pine forest by cooperating researchers and/or students (integration in an interdisciplinary research team), and a well equiped laboratory is available. The candidate will benefit from being actively involved within a larger network of twelve European laboratories working toward the same goal, i.e. the prediction of the impacts of elevated CO2 and temperature on forests at the stand-scale. Participation in workshops and meetings with all European participants at least twice a year will be necessary. The position is available 1 January, 1996 for up to three years, and will be either at the post-doctoral or pre-doctoral level. M.Sc. students or Graduate Engineers interested in a Ph.D. (doctoral) programme over three years are strongly encouraged to apply and will have the possibility to carry out the research for their doctoral project. The candidate must be familiar with soil-vegetation-atmosphere transfer and stand-scale process-based models. Applicants should also possess a high degree of initiative for planning. Applicants should send a letter of interest, curriculum vitae (resume), date of availability and names, fax numbers, e-mail and post addresses of three references by 30 October 1995 to : Prof. Reinhart Ceulemans, Department of Biology, University of Antwerpen, Universiteitsplein 1, B-2610 Wilrijk, Belgium. Fax : #32-3-820-2271; e-mail : rceulem@uia.ua.ac.be.
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