Claim · model-written summary
NDVI estimates of growing-season end correlated less strongly with surface observations.
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Verbatim
e0“Determining the end of growing season based on a threshold NDVI value shows a lower correlation with surface data”
Title
Hans Tømmervik; Kjell-Arild Høgda; Jan Åge Riseth; et al. Rangifer 2005. doi:10.7557/2.25.3.1743
Other claims from this paper (10)
- Method / resource NDVI onset of the growing season correlated strongly with observed birch leafing.
- Method / resource The NDVI threshold dates growing-season end between initial yellowing and complete leaf fall.
- Observation Spring onset became earlier in southern Fennoscandia and coastal western Norway.
- Observation Spring onset was stable or delayed in northern boreal and alpine areas.
- Observation Autumn was delayed over most of the study area, with stated regional exceptions.
- Observation The growing season lengthened in most areas except the northern continental section.
- Observation Peak NDVI timing showed no significant trend.
- Observation Peak midsummer NDVI increased across most of northern Fennoscandia.
- Observation Humid-preferring plants including Lapland dwarf cornel and mosses increased.
- Observation Crowberry, bilberry and reindeer lichens decreased.