Database of Ice-Rich Yedoma Permafrost Version 2 (IRYP v2)

Strauss, Jens; Laboor, Sebastian; Schirrmeister, Lutz; Fedorov, Alexander N.; Fortier, Daniel; Froese, Duane; Fuchs, Matthias; Günther, Frank; Grigoriev, Mikhail; Harden, Jennifer; Hugelius, Gustaf; Jongejans, Loeka L.; Kanevskiy, Mikhail; Kholodov, Alexander; Kunitsky, Viktor; Kraev, Gleb; Lozhkin, Anatoly; Rivkina, Elizaveta; Shur, Yuri; Siegert, Christine; Spektor, Valentin; Streletskaya, Irina; Ulrich, Mathias; Vartanyan, Sergey; Veremeeva, Alexandra; Anthony, Katey Walter; Wetterich, Sebastian; Zimov, Nikita; Grosse, Guido

Ice-rich permafrost in the circum-Arctic and sub-Arctic, such as late Pleistocene Yedoma, are especially prone to degradation due to climate change or human activity. When Yedoma deposits thaw, large amounts of frozen organic matter and biogeochemically relevant elements return into current biogeochemical cycles. Building on previous mapping efforts, the objective of this paper is to compile the first digital pan-Arctic Yedoma map and spatial database of Yedoma coverage. Therefore, we 1) synthesized, analyzed, and digitized geological and stratigraphical maps allowing identification of Yedoma occurrence at all available scales, and 2) compiled field data and expert knowledge for creating Yedoma map confidence classes. We used GIS-techniques to vectorize maps and harmonize site information based on expert knowledge. Hence, here we synthesize data on the circum-Arctic and sub-Arctic distribution and thickness of Yedoma for compiling a preliminary circum-polar Yedoma map.

To harmonize the different datasets and to avoid merging artifacts, we applied map edge cleaning while merging data from different database layers. For the digitalization and spatial integration, we used Adobe Photoshop CS6 (Version: 13.0 x64), Adobe Illustrator CS6 (Version 16.0.3 x64), Avenza MAPublisher 9.5.4 (Illustrator Plug-In) and ESRI ArcGIS 10.6.1 for Desktop (Advanced License). Generally, we followed workflow of figure 2 of the related publication (IRYP Version 2, Strauss et al 2021,

We included a range of attributes for Yedoma areas based on lithological and stratigraphic information from the source maps and assigned three different confidence levels of the presence of Yedoma (confirmed, likely, or uncertain). Using a spatial buffer of 20 km around mapped Yedoma occurrences, we derived an extent of the Yedoma domain. Our result is a vector-based map of the current pan-Arctic Yedoma domain that covers approximately 2,587,000 km², whereas Yedoma deposits are found within 480,000 km² of this region. We estimate that 35% of the total Yedoma area today is located in the tundra zone, and 65% in the taiga zone. With this Yedoma mapping, we outlined the substantial spatial extent of late Pleistocene Yedoma deposits and created a unique pan-Arctic dataset including confidence estimates.


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


Strauss, Jens

Metadata Access

DCAT in RDF/XML-Format

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.940078
Project(s) IPA Yedoma Action Group, PETA-CARB
Institute AWI Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research
Publication Date 2022-01-24
Version 2.0
Product Yedoma Thickness and Distribution Map
  1. Shapefile IRYP_v2_yedoma_confidence
  2. Shapefile IRYP_v2_yedoma_domain
  3. Shapefile IRYP_v2_field_sites
  4. Shapefile IRYP_v2_field_photos
  5. Shapefile IRYP_v2_map_sources
  6. ESRI FileGDB IRYP_v2 (map_sources, field_photos, field_sites, yedoma_domain, yedoma_confidence)
Variables [Units]
  1. Source (source of map data)
  2. Scale (scale of the original map source)
  3. Publication (publication in which the map data was published)
  4. Map_ID (identification numbers of the used maps)
  5. confidence (Confidence of yedoma deposits. [uncertain, likely, confirmed])
  6. conf_id (Confidence ID is a combination of confidence classes and conf_source classes. [11 (1_confirmed, 1_field data), 12 (1_confirmed, 2_explicit classification in map), 13 (1_confirmed, 3_context of lithology and field data), 14 (1_confirmed, 4_expert_knowledge), 21 (2_likely, 1_intersection with explicit classification of 2.5M map), 22 (2_likely, 2_lithologic and stratigraphic context), 31 (3_uncertain, 1_stratigraphic context)])
  7. site (site description)
  8. source ((un-)published?)
  9. internal_ID (id of the location)
  10. region (region of the location)
  11. location (name of location)
  12. stratigraphic_unit (stratigraphic unit [Yedoma])
  13. altitude (meter above sea level [m])
  14. yedoma_thickness (thickness information in literature [m])
  15. yedoma_thickness_generalized (thickness information in literature generalized [m])
  16. yedoma_thickness_class (classification of yedoma thickness)
  17. yedoma_top (depth (-). height. [m])
  18. yedoma_base (depth (-). height. [m])
  19. wedge_ice (wedge ice in [%])
  20. latitude (latitude of coordinates °N [dd])
  21. longitude (longitude of coordinates °E/W(-) [dd])
  22. position_accuracy (how the coordinates have been determined)
  23. reference_name (reference author name)
  24. reference_year (year of publication of reference)
  25. citation_language (citation_language [english, russian])
  26. notes_remarks_comments (notes, remarks, comments)
  27. addition (additional information)
  28. input_by (input by [name])
  29. Event (Data collection event, expedition)
  30. Area (photo location)
  31. File type (file type description)
  32. Comment (description of the photo)
  33. Date/Time (date of photograph)
  34. ID (id of photograph)
  35. Investigator (the person who took the photo)
  36. File_name (name of the photo file)
  37. File_format (format of the photo file)
  38. Binary Object (name and url of file)
Region Circum-Arctic
Spatial Reference EPSG:3571 WGS 84 / North Pole LAEA Bering Sea
Spatial Resolution
Spatial Coverage Latitude 47.63 to 90.00, Longitude -180.00 to 180.00
Temporal Coverage 1976-06-30 to 2021-09-02
Temporal Resolution
Format Shapefile, FileGDB
Is Supplement To

Strauss J, Laboor S, Schirrmeister L, Fedorov AN, Fortier D, Froese D, Fuchs M, Günther F, Grigoriev M, Harden J, Hugelius G, Jongejans LL, Kanevskiy M, Kholodov A, Kunitsky V, Kraev G, Lozhkin A, Rivkina E, Shur Y, Siegert C, Spektor V, Streletskaya I, Ulrich M, Vartanyan S, Veremeeva A, Anthony KW, Wetterich S, Zimov N and Grosse G (2021) Circum-Arctic Map of the Yedoma Permafrost Domain. Front. Earth Sci. 9:758360. doi: 10.3389/feart.2021.758360

Related to

Bryant, Robin; Robinson, Joel; Taylor, Maxwell D; Harper, William; DeMasi, Amy; Kyker-Snowman, Emily; Veremeeva, Alexandra; Schirrmeister, Lutz; Harden, Jennifer W; Grosse, Guido (2017): Digital Database and Maps of Quaternary Deposits in East and Central Siberia. U.S. Geological Survey data release,

Grosse, Guido; Robinson, Joel; Bryant, Robin; Taylor, Maxwell D; Harper, William; DeMasi, Amy; Kyker-Snowman, Emily; Veremeeva, Alexandra; Schirrmeister, Lutz; Harden, Jennifer W (2013): Distribution of Late Pleistocene Ice-Rich Syngenetic Permafrost of the Yedoma Suite in East and central Siberia, Russia. Reston, Virginia: U.S. Geological Survey,

Jongejans, Loeka Laura; Strauss, Jens; Lenz, Josefine; Peterse, Francien; Mangelsdorf, Kai; Fuchs, Matthias; Grosse, Guido (2018): Sedimentological, biogeochemical and geochronological data of yedoma and thermokarst deposits in West-Alaska. PANGAEA,

Morgenstern, Anne; Röhr, Christina; Grosse, Guido; Grigoriev, Mikhail N (2011): The Lena River Delta - inventory of lakes and geomorphological terraces. Alfred Wegener Institute - Research Unit Potsdam, PANGAEA,

Shestakova, Alyona; Fedorov, Alexander N; Torgovkin, Y; Konstantinov, Pavel; Vasyliev, Nikolay F; Kalinicheva, Svetlana V; Samsonova, Vera V; Hiyama, Tetsuya; Iijima, Yoshihiro; Park, Hotaek; Iwahana, Go; Gorokhov, Alexey N (2021): Mapping the Main Characteristics of Permafrost on the Basis of a Permafrost-Landscape Map of Yakutia Using GIS. Land, 10(5), 462,

Strauss, Jens; Laboor, Sebastian; Fedorov, Alexander N; Fortier, Daniel; Froese, Duane G; 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, Sergey A (2016): Database of Ice-Rich Yedoma Permafrost (IRYP). PANGAEA, (Version 1)

Veremeeva, Alexandra (2021): Quaternary deposits map of Yana-Indigirka and Kolyma lowlands tundra zone, R-55-57, based on Landsat imagery. PANGAEA,

Yukon Geological Survey (2014): Yukon Digital Surficial Geology Compilation. Eds: Lipovsky, P.S. and Bond, J.D.

Dataset extent

Map tiles and data by OpenStreetMap, under CC BY SA.