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Abisko


IPY-264_07 - ABACUS - Modelling and Synthesis
The aim of the modelling WP is to provide the means to extrapolate and scale information to test H7 by determining (1) whether flux tower measurements are consistent with multiple chamber measurements gathered within the footprint; and (2) ...

IPY-246_01 - ABACUS - Plant Growth and Allocation
The aim of WP1 is to understand how plant growth and C allocation drive C dynamics at the community level and how this relates to plant N status and site fertility.It therefore focuses on testing H1 (plant-soil interactions) and will also p...

IPY-246_02 - ABACUS - Soil Processes
One of the key uncertainties in the interpretation of landscape scale C flux measurements is the contribution of CO2 released from soils to the observed net ecosystem flux (Shaver et al. 1992; Boone et al. 1998; Liski et al. 1999; Hobbie et...

IPY-246_03 - ABACUS - Soil/Plant Flux Measurements
We will provide to WP7 high temporal resolution of C exchange of the key tundra-dwarf-shrub and forest understorey communities through diurnal cycles at different times of year, coupled with, where relevant, concomitant measurements of CO2 ...

IPY-246_04 - ABACUS - Tower Flux Measurements
We will make measurements of the fluxes of energy, water and CO2 from a small number of distinct arctic surface types using the Eddy Correlation (EC) method. These measurements provide estimates across a "footprint"of a few hundre...

IPY-246_05 - ABACUS - Aircraft Fluxes and Remote Sensing
The aircraft will be used in support of hypotheses 2, 3, 6 and 7. The system will produce area-averaged fluxes of CO2, CH4, water vapour and heat; it will also produce maps of the variability in the main drivers of land-atmosphere exchange ...

IPY-246_06 - ABACUS - Satellite Remote Sensing and Geostatistics
WP6 will provide spatial observations (with errors) for assimilation into the ecosystem models of WP7. Provision of spatiotemporal data will be key to WP7 and addressing hypotheses H2, H3 and H7. The main types of EO data that will be used ...