Niels Martin Schmidt

Vegetation phenology gradients along the west and east coasts of Greenland from 2001 to 2015

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  • Mojtaba Karami, Department of Geosciences and Natural Resource Management, Center for Permafrost (CENPERM), University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen K, Denmark. moka@ign.ku.dk.
  • ,
  • Birger Ulf Hansen, Department of Geosciences and Natural Resource Management, Center for Permafrost (CENPERM), University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen K, Denmark.
  • ,
  • Andreas Westergaard-Nielsen, Department of Geosciences and Natural Resource Management, Center for Permafrost (CENPERM), University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen K, Denmark.
  • ,
  • Jakob Abermann, Asiaq, Greenland Survey, Qatserisut 8, 3900, Nuuk, Greenland.
  • ,
  • Magnus Lund
  • ,
  • Niels Martin Schmidt
  • Bo Elberling, Department of Geosciences and Natural Resource Management, Center for Permafrost (CENPERM), University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen K, Denmark.

The objective of this paper is to characterize the spatiotemporal variations of vegetation phenology along latitudinal and altitudinal gradients in Greenland, and to examine local and regional climatic drivers. Time-series from the Moderate Resolution Imaging Spectroradiometer (MODIS) were analyzed to obtain various phenological metrics for the period 2001-2015. MODIS-derived land surface temperatures were corrected for the sampling biases caused by cloud cover. Results indicate significant differences between West and East Greenland, in terms of both observed phenology during the study period, as well as the climatic response. The date of the start of season (SOS) was significantly earlier (24 days), length of season longer (25 days), and time-integrated NDVI higher in West Greenland. The sea ice concentration during May was found to have a significant effect on the date of the SOS only in West Greenland, with the strongest linkage detected in mid-western parts of Greenland.

Original languageEnglish
JournalAmbio
Volume46
IssueS1
Pages (from-to)94-105
Number of pages12
ISSN0044-7447
DOIs
Publication statusPublished - Feb 2017

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