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Seasonal and interannual variability of net ecosystem exchange

The previous sections described the methodology to calculate hourly NEE data for both the 82 m (large scale) system and the 3 m (local scale) system. The profile ``tweaking'' methodology together with the empirical NEE-PPFD and NEE-\( t \) functions are powerful tools to estimate NEE when a direct measurement of NEE is not available. The final step towards the calculation of annual carbon dioxide exchange is the integration of the hourly data.


root 2001-06-16