Normalized vegetation index (NDVI), is calculated from the quality checked RVI timeseries at 200 cm above ground as a 5 min average. Please read the metadata file provided with the data for comments related to the data in this timeseries. Radiation:Radiation ClimateBasis Nuuk:The ClimateBasis programme monitors climate and hydrology in Zackenberg, Kobbefjord and Disko (Qeqertarsuaq) and is run by Asiaq - Greenland Survey. The collected data build base-line information on climate variability and trends for all the other sub-programmes within GEM and serve as a trustworthy foundation for adaptation strategies for the Greenlandic society. The stations are embedded in Asiaq’s extensive climate and hydrology monitoring network. Furthermore, the run-off data is delivered to the World Hydrological Cycle Observing System (WHYCOS) and the Global Runoff Data Centre (GRDC) networks.