Selected Arctic Land Parameter Trends: Ground Temperature, Snow Water Equivalent, NDVI, LAI and Freeze Thaw Duration

The Arctic land parameter trend datasets cover the Arctic region North of 60°N. Consistent masking for ice sheets and water bodies has been applied. Datasets are organized by source/parameter. Each zip file includes a readme file with detailed specifications. Raster files are provided as Geotiffs.

Data sources:

Permafrost Ground Temperature at 2m depth 2000-2019 from ESA CCI+ Permafrost (source: Obu et al. (2023))

Maximum NDVI (MaxNDVI) based on MODIS 2000-2019 (Source: Tommervik (2025))

Time Integrated NDVI (TI-NDVI) based on MODIS 2000-2019 (Source: Tommervik (2025)

Leaf area index (LAI) based on MODIS 2000-2019 (Source: Tommervik (2025))

July and August NDVI baed on GIMMS 2000-2019 (Source: Tommervik (2025))

Snow Water Equivalent(SWE) 2000-2018 based on SSMI / ESA GlobSnow/ CCI+ Snow (Source: Luojus et al. (2021))

Freeze Thaw Duration (FTESDR) 2000-2019 based on SSMI (Source: Kim et al. (2017))