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Using thermal remote sensing in the classification of mountain permafrost landscapes

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Journal of mountain Science 2021年第3期18卷 635-645页

作者： Svetlana V.KALINICHEVA Alyona A.SHESTAKOVA Melnikov permafrost Institute Siberian Branch of Russian Academy of SciencesYakutsk 677010Russia

Thermal infrared satellite imagery is increasingly utilized in permafrost *** useful application of the land surface temperature(LST)products is classification and mapping of landscapes in permafrost regions,as LST values can help differentiate between frozen and unfrozen *** article describes a new approach to the use of *** essence of the new approach lies in the fact that in the territory where it is impossible to determine(indicate)the state of the underlying ground according to the same morphological characteristics(relief,vegetation,soil composition,etc.),the LST parameter,which reflects the thermal state of the landscape,allows as an additional criterion(indicator)identify frozen/un-frozen *** this work,using the above approach,a map has been compiled,which shows the permafrost natural-territorial complexes of the Elkon Massif,Eastern Siberia,including topography,slope aspect,slope angle,vegetation,snow cover and *** map provides a more detailed and updated description of permafrost distribution in the study area.

关键词： permafrost mapping permafrost landscape classification Landsat Thermal infrared imagery mountain permafrost Land surface temperature Eastern Siberia

Eastern Siberia permafrost transect(ESPT).A first stage:The Verkhoyansk Range part

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Journal of mountain Science 2023年第6期20卷 1499-1507页

作者： Robert SYSOLYATIN Svetlana KALINICHEVA Alexander FEDOROV Maria ROZHINA Melnikov permafrost Institute Yakutsk 677010Russia

Environmental and geomorphological processes in the mountainous areas of Eastern Siberia is strongly conditioned by the thermal state of permafrost(permanently frozen ground).However,the scarce data about climate and weak of permafrost study have led to the unclarity of mountain permafrost condition in this *** increase in the mean annual air temperature over the past 50 years in the northeastern Siberia by various estimates is from 1.1℃to 3.3℃.So far,almost no information is available on the permafrost response to climatic changes in the *** Kolyma Route(around 2000 km length),connecting Yakutsk and Magadan that crosses 5 climatic types and more than 10 permafrost landscapes,so it seems a suitable path for establishing basic(reference)monitoring *** 12 target boreholes,on the first stage 5 boreholes up to 30 m in depth were drilled and instrumented for measuring temperature at sites adjacent to weather stations in the Verkhoyansk Range from 283 to 1288 m *** we present conception,purpose,and methods for permafrost study project with first preliminary results from the highest weather station of the East Siberia *** following research about geophysical investigations,permafrost landscape description,mapping and spatial modelling,numerical computing,physical modelling of permafrost thickness might be initiated by the Eastern Siberia permafrost Transect(ESPT)-project.

关键词： Ground temperature mountain permafrost Temperature e monitoring Verkhoyansk Range Climate change.

Temperature monitoring from 2012 to 2019 in central part of Suntar-Khayat Ridge,Russia

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Journal of mountain Science 2020年第10期17卷 2321-2338页

作者： Robert SYSOLYATIN Sergei SERIKOV Mikhai Yana TIKHONRAVOVA Vladimir ZHIZHIN Maria ROJINA Melnikov permafrost Institute Yakutsk 677010Russia

In recent decades,research of the Alps,Qinghai-Tibet Plateau,and Cordillera have made great progress in understanding the phenomenon of *** the most part,this has been made possible due to temperature ***,the permafrost parameters in an area of more than 2 million square km of the mountainous regions of northeast Asia,for the most part,remain a blank spot in the scientific *** to the lack and insufficiency of factual materials,in 2012 the *** permafrost Institute began to take temperature measurements in the upper part of the permafrost in the central part of the VerkhoyanKolyma uplands,namely the Suntar-Khayat *** article describes the temperature characteristics of air,surface and rocks of the active layer in the range of heights from 850 to 1821 m,in various landscape and topographic *** the observation period from 2012 to 2019,we obtained information on temperatures in the soils of the active layer at depths of 1 m,3 m,4 m,and 5 m and also air and surface temperature *** availability of data on automated monitoring of rock temperatures in the active layer and the upper horizons of the layer of annual heat rotations made it possible to substantiate the most typical conditions of the temperature conditions of the permafrost zone of the characterized *** parameters of permafrost existence and development are in favorable *** is shown in the analysis of temperature data of air,surface and active *** temperatures in the active layer of annual heat rotations are most clearly represented at a depth of 1 ***,on the territory of the mountain regions of Eastern Siberia,there are no more such sites for monitoring the temperature regime of *** on the permafrost parameters in the region will allow us to begin the process of creating new models or checking existing forecasts and the distribution of the temperature *** will also make it possible to eval

关键词： Air temperature Ground temperature Climate change mountain permafrost Active layer thickness

Mapping the permafrost stability on the Tibetan Plateau for 2005–2015

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Science China Earth Sciences 2021年第1期64卷 62-79页

作者： Youhua RAN Xin LI Guodong CHENG Zhuotong NAN Jinxing CHE Yu SHENG Qingbai WU Huijun JIN Dongliang LUO Zhiguang TANG Xiaobo WU Northwest Institute of Eco-Environment and Resources Chinese Academy of SciencesLanzhou 730000China Institute of Tibetan Plateau Research Chinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Tibetan Plateau Earth Sciences Beijing 100101China University of Chinese Academy of Sciences Beijing 100049China Institute of Urban Study Shanghai Normal UniversityShanghai 200234China Key Laboratory of Virtual Geographic Environment Ministry of EducationNanjing Normal UniversityNanjing 210023China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023China School of Science Nanchang Institute of TechnologyNanchang 330099China National-Local Joint Engineering Laboratory of Geo-Spatial Information Technology Hunan University of Science and TechnologyXiangtan 411201China

Data scarcity is a major obstacle for high-resolution mapping of permafrost on the Tibetan Plateau(TP).This study produces a new permafrost stability distribution map for the 2010 s(2005–2015)derived from the predicted mean annual ground temperature(MAGT)at a depth of zero annual amplitude(10–25 m)by integrating remotely sensed freezing degree-days and thawing degree-days,snow cover days,leaf area index,soil bulk density,high-accuracy soil moisture data,and in situ MAGT measurements from 237 boreholes on the TP by using an ensemble learning method that employs a support vector regression model based on distance-blocked resampled training data with 200 *** of the new permafrost map indicates that it is probably the most accurate of all currently available *** map shows that the total area of permafrost on the TP,excluding glaciers and lakes,is approximately 115.02(105.47–129.59)×10^4 km^*** areas corresponding to the very stable,stable,semi-stable,transitional,and unstable types are 0.86×10^4,9.62×10^4,38.45×10^4,42.29×10^4,and 23.80×10^4 km^2,*** new map is of fundamental importance for engineering planning and design,ecosystem management,and evaluation of the permafrost change in the future on the TP as a baseline.

关键词： mountain permafrost Third Pole Remote sensing Statistical learning

Frozen ground and periglacial processes relationship in temperate high mountains: a case study at Monte Perdido-Tucarroya area(The Pyrenees, Spain)

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Journal of mountain Science 2020年第5期17卷 1013-1031页

作者： SERRANO Enrique LóPEZ-MORENO Juan Ignacio GóMEZ-LENDE Manuel PISABARRO Alfonso MARTíN-MORENO Raúl RICO Ibai ALONSO-GONZáLEZ Esteban Dept of GeographyUniversity of ValladolidValladolid 47011Spain Dept of Geoenvironmental Processes and Global ChangePyrenean Institute of EcologyZaragoza 50.080Spain Dept.Specific Didactics.Autonom University of Madrid.Madrid 28049Spain Dept of GeographyPrehistory and ArcheologyUniversity of the Basque CountryVitoria 01006Spain

Seasonally frozen ground,mountain permafrost and cryogenic geomorphological processes are important components of the Pyrenean high *** work presents the results of a study on the distribution of frozen ground in a marginal and paraglacial environment of temperate *** inventory was made of landforms and indicators of frozen ground,and frozen ground was mapped *** 2014 and 2016 ground temperatures and thermal regimes were monitored,basal temperatures of snow-cover(BTS)were measured and a thermal map was *** thermal behaviours were detected among different elevations and slope *** processes are the most widespread,in which frost weathering and nivation,together with gelifluction and cryoturbation,are the most efficient processes;the latter two are generally linked to the presence of frozen *** fall in air and ground temperatures with altitude,slope orientations,and snowpack thickness and evolution determine ground thermal *** the study area,three types of thermal regimes were established:climate-controlled,snowcover-controlled,and frozen *** frozen ground occurs across a broad range of elevation between 2650 and 3075 m asl,whereas possible permafrost only occurs above 2750 m asl.

关键词： Geomorphology Periglacial Seasonally frozen ground mountain permafrost Pyrenees