Category: Pictures

18 Posts

Chlorophyll fluorescence measurements

Early in July, Karolina and Herbert set up active chlorophyll fluorescence measurements at the flux tower Leinefelde run by Alexander Knohl (Univ. Göttingen) complementing the ongoing passive chlorophyll fluorescence measurements with a FLOX system operated by MPI Jena (Mirco Migliavacca). 

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Measurement campaign in Mezyk/Poland

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Last week, Karolina, Michaela and Albin, went up to Mezyk/Poland to set up the instrumentation for a joint COS/CO2 flux and chlorophyll fluorescence campaign over a Scots Pine forest. The idea of the campaign is to quantify GPP during the “spring awakening” of photosynthesis of this evergreen species and use active and passiv chlorophyll fluorescence to diagnose functioning of the electron transport chain and evaluate the potential of sun-induced chlorophyll fluorescence as a proxy for GPP.

Hyperspectral and SIF measurements starting at Neustift

Today Karolina and others mounted the WhiteRef loaned from FEM (foreground) and our SIF system (background) to start jointly measuring hyperspectral reflectance and passive (sun-induced) fluorescence at Neustift within the frame of her Marie Sklodowska-Curie project COSIF. These measurements will be accompanied within COS/CO2 eddy covariance flux measurements and active chlorophyll fluorescence by means of a moniPAM.

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