Zum Hauptinhalt springen


Talk by Jonathan Barichivich: "Benchmarking global land surface models with tree rings"

  Scientific Talks

Date: Tuesday, 3rd of September 2019, 10:30 a.m.

Venue: GFZ Campus Telegrafenberg Potsdam, building A43, lecture hall

Hosts: Dr. Rik Tjallingii & Dr. Gerhard Helle, Scientists at Section 4.3: "Climate Dynamics and Landscape Evolution", GFZ German Research Centre for Geosciences

Speaker: Dr. Jonathan Barichivich, post-doctoral researcher on ecosystem modelling, Laboratoire des Sciences du Climat et de l`Environnement, Paris & Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile

We hope to welcome all people interested


Global land surface models (LSMs) simulate the interaction between the terrestrial biosphere and the climate system. These models are an uncertain component of Earth System Models that underpin the projections of future climate. LSMs have been extensively validated at short time scales (i.e., days to years) but remain poorly constrained at the time scales of global change from decades to centuries. The search for long-term model benchmarks has brought tree-ring data to the attention of the modelling community. Tree rings can constrain simulations of biomass growth and long-term changes in tree-level gas exchange, a process that underlies photosynthesis and transpiration. In this talk I will present ideas and recent advances for benchmarking the French ORCHIDEE global land surface model (https://orchidee.ipsl.fr/) with tree-ring widths and their stable isotopic composition.