Thule Biocomplexity - Gross Ecosystem Photosynthesis, Version 1.0

• Main Authors: Welker, J., Schimel, J., Sletten, R.
• Format: Dataset
• Language: English
• Published: UCAR/NCAR - Earth Observing Laboratory 2008
• Subjects: Arctic; Ecology; FOS Biological sciences; ARCSS; NSF Arctic System Science; Greenland; Pituffik; Thule; Tundra
• Online Access: https://dx.doi.org/10.5065/d6sx6bb8; https://arcticdata.io/catalog/#view/doi:10.5065/D6SX6BB8

Ecosystem carbon dioxide flux measurements were taken at a High Arctic prostrate dwarf-shrub, herb tundra near Pituffik (Thule), Greenland (76 deg 29'N, 68 deg 26'W; elevation 245 m asl) northwest Greenland. Between 1978 and 2004, mean annual air temperature and precipitation for the site were -11.4 deg C and 12.5 cm respectively. Over the same period, growing season (June, July and August) air temperatures averaged 3.8 deg C and approximately 50% of precipitation fell between October and April as snow. The soil surface of the study site was approximately 40% covered by vascular plants and 60% unvegetated. Dominant vascular plants include the deciduous dwarf-shrub Salix arctica, the graminoid Carex rupestris and the wintergreen dwarf-shrub Dryas integrifolia. The dataset covers the growing seasons of 2006 and 2007.