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Schirrmeister, Lutz; Pestryakova, Ludmila A; Schneider, Andrea; Wetterich, Sebastian (2016): Characteristics of samples obtained during Pokhodsk 2012-2013 campaigns in the joint Russian-German POLYGON Project. PANGAEA,, Supplement to: Schirrmeister, L et al. (2016): Studies of Polygons in Siberia and Svalbard. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 697, 275 pp,

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Polygonal tundra, thermokarst basins and pingos are common and characteristic periglacial features of arctic lowlands underlain by permafrost in Northeast Siberia. Modern polygonal mires are in the focus of biogeochemical, biological, pedological, and cryolithological research with special attention to their carbon stocks and greenhouse-gas fluxes, their biodiversity and their dynamics and functioning under past, present and future climate scenarios. Within the frame of the joint German-Russian DFG-RFBR project Polygons in tundra wetlands: state and dynamics under climate variability in Polar Regions (POLYGON) field studies of recent and of late Quaternary environmental dynamics were carried out in the Indigirka lowland and in the Kolyma River Delta in summer 2012 and summer 2013.
Using a multidisciplinary approach, several types of polygons and thermokarst lakes were studied in different landscapes units in the Kolyma Delta in 2012 around the small fishing settlement Pokhodsk. The floral and faunal associations of polygonal tundra were described during the fieldwork. Ecological, hydrological, meteorological, limnological, pedological and cryological features were studied in order to evaluate modern and past environmental conditions and their essential controlling parameters. The ecological monitoring and collection program of polygonal ponds were undertaken as in 2011 in the Indigirka lowland by a former POLYGON expedition (Schirrmeister et al. [eds.] 2012). Exposures, pits and drill cores in the Kolyma Delta were studied to understand the cryolithological structures of frozen ground and to collect samples for detailed paleoenvironmental research of the late Quaternary past. Dendrochronological and ecological studies were carried out in the tree line zone south of the Kolyma Delta. Based on previous work in the Indigirka lowland in 2011 (Schirrmeister et al. [eds.] 2012), the environmental monitoring around the Kytalyk research station was continued until the end of August 2012. In addition, a classical exposure of the late Pleistocene permafrost at the Achchaygy Allaikha River near Chokurdakh was studied. The ecological studies near Pokhodsk were continued in 2013 (chapter 13). Other fieldwork took place at the Pokhodsk-Yedoma-Island in the northwestern part of the Kolyma Delta.
Median Latitude: 69.398094 * Median Longitude: 158.821143 * South-bound Latitude: 69.037250 * West-bound Longitude: 147.440150 * North-bound Latitude: 70.831210 * East-bound Longitude: 161.011383
Date/Time Start: 2012-06-30T00:00:00 * Date/Time End: 2013-08-29T00:00:00
13 datasets

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Datasets listed in this publication series

  1. Pogasyan, L; Beermann, J (2016): (Appendix 7-1) Characteristics of soil samples.
  2. Schirrmeister, L; Schneider, A; Tumskoy, V (2016): (Appendix 12-1) Characteristics of Kytalyk cores and exposures.
  3. Schirrmeister, L; Schneider, A; Tumskoy, V (2016): (Appendix 12-2) Characteristics of Achchagyi Alaikha cores and exposures.
  4. Schirrmeister, L; Schneider, A; Wetterich, S (2016): (Appendix 3) General and physico-chemical characteristics of monitoring site Pok-01.
  5. Schirrmeister, L; Tumskoy, V; Wetterich, S (2016): (Appendix 9) Characteristics of Pokhodsk cores and pits.
  6. Schirrmeister, L; Wetterich, S (2016): (Table 14-1) Bedrock description of samples from the Pokhodskaya Yedoma.
  7. Schirrmeister, L; Wetterich, S (2016): (Table 14-2) Cryotexture, sediment description and selected ice content of samples from the Pokhodskaya Yedoma Island.
  8. Schneider, A (2016): (Appendix 4) General and physico-chemical characteristics of the studied ponds and lakes POK-02 to POK-31.
  9. Sitalo, V; Schirrmeister, L (2016): (Appendix 5-1) Field measurements of limnological samples.
  10. Sitalo, V; Schirrmeister, L (2016): (Appendix 5-2) Characteristics of lake and pond sediment samples from short cores.
  11. Wetterich, S; Schirrmeister, L; Pogosyan, L (2016): (Appendix 8-1+2) Sample description and field data of the pingo exposure 'Shirokovsky Kholm'.
  12. Wetterich, S; Schirrmeister, L; Pogosyan, L (2016): (Appendix 8-3) Soil description and pH measurements of the pingo 'Shirokovsky Kholm'.
  13. Wetterich, S; Schirrmeister, L (2016): (Table 13-2) Ground temperature data (annual mean, minimum, maximum) of the polygon wall POK-01.