Claim · model-written summary
Irregular carbon dioxide variations had 3 to 5 day periods and appeared linked to synoptic weather.
- Taxon
- native grasslandt0
- Outcome
- irregular variationse0
- Value
- between 3 and 5 dayse0
- Qualifier
- appear to be related to synoptic scale weather patternse0
- Setting
- synoptic scale weather patternse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirection
Verbatim
t0“native grassland”
e0“Spectral analysis of the <CO2> shows the presence of irregular variations, with periods between 3 and 5 days, that appear to be related to synoptic scale weather patterns.”
Title
Carbon dioxide concentrations over a native grassland in Saskatchewan
D. L. Spiltlehouse; E. A. Ripley Tellus A Dynamic Meteorology and Oceanography 1977. doi:10.3402/tellusa.v29i1.11330
Other claims from this paper (4)
- Observation Diurnal carbon dioxide variation reached 100 vpm in the canopy and diminished with height.
- Mechanism Daytime photosynthetic intake and nighttime plant and soil respiration drove the diurnal carbon dioxide variation.
- Observation Carbon dioxide fell with longer trajectories over land, differing by up to 7 vpm in daily minima.
- Observation Mean daily carbon dioxide decreased 28 vpm from June to September.