Database of Ice-Rich Yedoma Permafrost (IRYP)

Strauss, Jens; Laboor, Sebastian; Fedorov, Alexander N; Fortier, Daniel; Froese, Duane; Fuchs, Matthias; Grosse, Guido; Günther, Frank; Harden, Jennifer W; Hugelius, Gustaf; Kanevskiy, Mikhail Z; Kholodov, Alexander L; Kunitsky, Victor V; Kraev, Gleb; Lapointe-Elmrabti, Lyna; Lozhkin, Anatoly V; Rivkina, Elizaveta; Robinson, Joel; Schirrmeister, Lutz; Shmelev, Denis; Shur, Yuri; Siegert, Christine; Spektor, Valentin; Ulrich, Mathias; Vartanyan, Sergey L; Veremeeva, Alexandra; Walter Anthony, Katey M; Zimov, Sergei A

For this dataset is a newer version available: /dataset/iryp-v2

We synthesized data on the circum-Arctic and sub-Arctic distribution and thickness of Yedoma for compiling a preliminary circum-polar Yedoma map. For compiling this map, we used maps of the previous Yedoma coverage estimates, included the digitized areas from Grosse et al. (2013) as well as extracted areas of potential Yedoma distribution from additional surface geological and Quaternary geological maps:

1.: 1:500,000: Q-51-V,G; P-51-A,B; P-52-A,B; Q-52-V,G; P-52-V,G; Q-51-A,B; R-51-V,G; R-52-V,G; R-52-A,B
2.: 1:1,000,000: P-50-51; P-52-53; P-58-59; Q-42-43; Q-44-45; Q-50-51; Q-52-53; Q-54-55; Q-56-57; Q-58-59; Q-60-1; R-(40)-42; R-43-(45); R-(45)-47; R-48-(50); R-51; R-53-(55); R-(55)-57; R-58-(60); S-44-46; S-47-49; S-50-52; S-53-55
3.: 1:2,500,000: Quaternary map of the territory of Russian Federation
4.: Alaska Permafrost Map

The digitalization was done using GIS techniques (ArcGIS) and vectorization of raster Images (Adobe Photoshop and Illustrator). Data on Yedoma thickness are obtained from boreholes and exposures reported in the scientific literature. The map and database are still preliminary and will have to undergo a technical and scientific vetting and review process. In their current form, we included a range of attributes for Yedoma area polygons based on lithological and stratigraphical information from the original source maps as well as a confidence level for our classification of an area as Yedoma (3 stages: confirmed, likely, or uncertain). In its current version, our database includes more than 365 boreholes and exposures and more than 2000 digitized Yedoma areas. We expect that the database will continue to grow. In this preliminary stage, we estimate the Northern Hemisphere Yedoma deposit area to cover approximately 625,000 km². We estimate that 53% of the total Yedoma area today is located in the tundra zone, 47% in the taiga zone. Separated from west to east, 29% of the Yedoma area is found in North America and 71 % in North Asia. The latter include 9% in West Siberia, 11% in Central Siberia, 44% in East Siberia and 7% in Far East Russia. Adding the recent maximum Yedoma region (including all Yedoma uplands, thermokarst lakes and basins, and river valleys) of 1.4 million km² (Strauss et al., 2013, doi:10.1002/2013GL058088) and postulating that Yedoma occupied up to 80% of the adjacent formerly exposed and now flooded Beringia shelves (1.9 million km², down to 125 m below modern sea level, between 105°E - 128°W and >68°N), we assume that the Last Glacial Maximum Yedoma region likely covered more than 3 million km² of Beringia.


In order to use these data, you must cite this data set with the following citation:


Strauss, Jens

Metadata Access

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DCAT in Turtle-Format

DCAT in JSON-LD-Format

APGC Dataset Metadata in JSON-Format

Data and Resources

Additional Info

Field Value
Identifier DOI:10.1594/PANGAEA.861733
Project(s) IPA Action Group: The Yedoma Region
Institute AWI Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research
Publication Date 2016-06-08T10:42:39Z
Version 1.0
Product Yedoma Thickness and Distribution Map
  1. iryp_data_frames
  2. iryp_field_photos
  3. iryp_field_sites
  4. QG1000k_quaternary_deposits_thickness
  5. QG1000k_yedoma_russia
  6. QG2500k_yedoma_russia
  7. SG500k_yedoma_russia
  8. SG7200k_yedoma_alaska
  9. western_yukon_loess
Variables [Units]
    Region Circum-Arctic
    Spatial Reference EPSG:3571 WGS 84 / North Pole LAEA Bering Sea
    Spatial Resolution
    Spatial Coverage Latitude 48.00 to 80.00, Longitude -180.00 to 180.00
    Temporal Coverage 1976-06-30 to 2014-08-22
    Temporal Resolution Unequally
    Format shapefile; FileGDB
    Is Supplemented by doi:10.1594/PANGAEA.861732; doi:10.1594/PANGAEA.861731; doi:10.1594/PANGAEA.861395

    Dataset extent

    Map data © OpenStreetMap contributors