Trends of Land Surface Change from Landsat time-series 1999-2014, Eastern Canada (CA)

Nitze, Ingmar; Grosse, Guido

In the ESA DUE GlobPermafrost project Hot Spot Regions of Permafrost Change (HRPC) map changes in surface characteristics using the full Landsat archive (TM, ETM+, OLI) from 1999 to 2014. The HRPC products provide trends of multi-spectral indices such as Tasselled Cap brightness, greenness, wetness and normalized indices (NDVI, NDWI, NDMI) in 4 regional transects spanning the panarctic permafrost domain. Changes in indices can be linked to both gradual (press disturbance) and rapid (pulse disturbances) land surface changes. Press disturbances are for example shrub expansion, wetting, drying, or active layer deepening. Pulse disturbances include thermokarst and thermo-erosion, lake formation, expansion, and shrinkage, erosion, or wildfires.

All products are spatially organized into three different levels: Transects, Zones and Blocks. Products are available for four transects: T1 Western Siberia, T2 Eastern Siberia, T3 Alaska, T4 Eastern Canada. Each transect is subdivided into zones, which correspond to their respective UTM Zones e.g. zones Z051 and Z052 for T2 Eastern Siberia. Due to the large data size, the zones are further subdivided into smaller tiles of 2° latitude (e.g. 64°N to 66°N) and the full width of the UTM zone within the respective transect.

Click here to view all datasets of the Eastern Canadian transect.

Contact

Nitze, Ingmar

Metadata Access

DCAT in RDF/XML-Format

DCAT in Turtle-Format

DCAT in JSON-LD-Format

Data and Resources

Additional Info

Field Value
Identifier
Project(s) ESA GlobPermafrost
Institute AWI Alfred-Wegener-Institute Helmholtz-Centre for Polar- and Marine Research
Source
Publication Date
Version 1.1
Product group Hotspot Region of Permafrost Change HOT
Product Land Surface Change
Sensor Landsat
Files
  • Trend files - 4 bands: Slope (SL), Intercept (IC), Upper and Lower Confidence Intervals (CIL, CIU)
  • Raster Metadata file - 1 band: Number of Observations (NObs)
  • Visual Product: Red-Green-Blue-Composite of Trends of TCBR, TCGR and TCWE
Variables [Units]
  • Trend of Tasseled Cap Brightness (TCBR)
  • Trend of Tasseled Cap Greenness (TCGR)
  • Trend of Tasseled Cap Wetness (TCWE)
  • Trend of Normalized Difference Vegetation Index (NDVI)
  • Trend of Normalized Difference Moisture Index (NDMI)
  • Trend of Normalized Difference Water Index (NDWI)
Region Quebec-Labrador
Spatial Reference
Spatial Resolution 30 m
Spatial Coverage Latitude 49.83 to 63.34, Longitude -81.70 to -70.23
Temporal Coverage 1999-2014
Temporal Resolution
Format Geotiff

Dataset extent

Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under CC BY SA.