A Hierarchical Approach to Geoecological Mapping
The Alaska Arctic Map Archive contains field-based geoecological maps and remote-sensing landcover maps that cover areas ranging from the circumpolar Arctic to 1-m2 vegetation plots. Most of the map datasets have been developed using an integrated-terrain-unit-mapping (ITUM) approach. These map datasets each contain numerous map themes that depict a variety of terrain variables (e.g., elevation, vegetation, surficial geomorphology, parent material, substrate pH, glacial geology, landforms, soils, percent water cover, NDVI, plant biomass) along with detailed descriptions and photos of the map-unit types, and literature related to the maps. Not shown on the map above is a key dataset of geoecological maps and classifications of the entire circumpolar Arctic. These datasets have been used in a wide variety of analyses at circumpolar, regional and landscape levels. Other maps in the archive include land-cover classifications using remote-sensing data. The maps which focus on the Toolik Lake and Imnavait Creek region were verified with ground-based transects for landscape-scale maps and with helicopter-based accuracy assessments for regional-scale maps. The AAGA Map Archive is linked to the Vegetation Plot Archive so the locations of the vegetation plots, along with plot photos and other basic dataset information, can be viewed within the context of the GIS-based maps.
The Toolik-Arctic Geobotanical Atlas (TAGA) is a web-based multi-scale collection of geobotanical maps and related material. It includes maps at seven different scales, from 1-m2 plots to the entire Arctic. The TAGA focuses on research sites at the Toolik Field Station and Imnavait Creek, Alaska, but also covers the Kuparuk River Basin, northern Alaska, Arctic Alaska, and the Circumpolar Arctic. Diverse geobotanical themes include geology, topography landforms, surficial geomorphology, soils, and vegetation. The unique aspect of this atlas is that many of the map units have full descriptions and photos of the map units and plant species in the units. The maps and website were developed at the Alaska Geobotany Center in collaboration with several other groups at the University of Alaska Fairbanks. Visit the TAGA ».