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Spatial distribution mapping of permafrost in Mongolia using TTOP

Author

Listed:
  • Jambaljav Yamkhin
  • Gansukh Yadamsuren
  • Temuujin Khurelbaatar
  • Tsogt‐Erdene Gansukh
  • Undrakhtsetseg Tsogtbaatar
  • Saruulzaya Adiya
  • Amarbayasgalan Yondon
  • Dashtseren Avirmed
  • Sharkhuu Natsagdorj

Abstract

This study presents the results of permafrost mapping in Mongolia based on the TTOP (temperature‐on‐top‐of‐permafrost) approach, which were validated against in situ measurements at various locations. In situ measurements indicated that the mean annual ground temperature (MAGT) ranged from 0.6 to 2.2°C interannually, showing the greatest variability when furthest from 0°C. The differences between the modeled and measured MAGTs exceeded ±1°C in locations where permafrost was in a nonequilibrium state and was controlled predominantly by local factors. It was estimated that permafrost occupies one‐third of Mongolia. We divided the extent of the permafrost into five zones: continuous, discontinuous, sporadic, isolated, and seasonally frozen ground. In total, the permafrost zones cover ~462.8 × 103 km2, accounting for 29.3% of Mongolia. Of this total area, continuous permafrost accounted for 118.3 × 103 km2 (7.5%), discontinuous permafrost 127.7 × 103 km2 (8.1%), sporadic permafrost 112.4 × 103 km2 (7.1%), and isolated permafrost 104.4 × 103 km2 (6.6%).

Suggested Citation

  • Jambaljav Yamkhin & Gansukh Yadamsuren & Temuujin Khurelbaatar & Tsogt‐Erdene Gansukh & Undrakhtsetseg Tsogtbaatar & Saruulzaya Adiya & Amarbayasgalan Yondon & Dashtseren Avirmed & Sharkhuu Natsagdorj, 2022. "Spatial distribution mapping of permafrost in Mongolia using TTOP," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 33(4), pages 386-405, October.
    • Handle: RePEc:wly:perpro:v:33:y:2022:i:4:p:386-405
    DOI: 10.1002/ppp.2165
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    References listed on IDEAS

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    1. M. W. Smith & D. W. Riseborough, 1996. "Permafrost monitoring and detection of climate change," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 7(4), pages 301-309, October.
    2. T. E. Osterkamp & V. E. Romanovsky, 1999. "Evidence for warming and thawing of discontinuous permafrost in Alaska," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 10(1), pages 17-37, January.
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