Class information for:
Level 2: PERMAFROST//STATE FROZEN SOIL ENGN//PERMAFROST AND PERIGLACIAL PROCESSES

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
3 4 GEOSCIENCES, MULTIDISCIPLINARY//GEOCHEMISTRY & GEOPHYSICS//METEOROLOGY & ATMOSPHERIC SCIENCES 1953906
188 3       JOURNAL OF GLACIOLOGY//GEOGRAPHY, PHYSICAL//COLD REGIONS SCIENCE AND TECHNOLOGY 55694
2176 2             PERMAFROST//STATE FROZEN SOIL ENGN//PERMAFROST AND PERIGLACIAL PROCESSES 5265
2339 1                   PERMAFROST//PERMAFROST AND PERIGLACIAL PROCESSES//ACTIVE LAYER 2313
9041 1                   STATE FROZEN SOIL ENGN//COLD REGIONS SCIENCE AND TECHNOLOGY//FROZEN SOIL 1224
10994 1                   SOIL THERMAL DIFFUSIVITY//SOIL THERMAL PROPERTIES//SOIL THERMAL CONDUCTIVITY 1045
19016 1                   SOIL FROST//SOIL FREEZING//WINTER CLIMATE CHANGE 548
33657 1                   SHAW MODEL//NW WATERSHED//ACHIEVABLE FUTURE CONDITIONS 135

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PERMAFROST authKW 2102059 14% 47% 743
2 STATE FROZEN SOIL ENGN address 1500068 7% 68% 371
3 PERMAFROST AND PERIGLACIAL PROCESSES journal 792860 6% 43% 310
4 COLD REGIONS SCIENCE AND TECHNOLOGY journal 678880 10% 23% 501
5 FROZEN SOIL authKW 574416 3% 67% 143
6 ACTIVE LAYER authKW 442851 3% 49% 151
7 COLD ARID REG ENVIRONM ENGN address 315902 8% 13% 419
8 THERMOKARST authKW 314634 2% 63% 83
9 FROST HEAVE authKW 282441 1% 64% 74
10 PERMAFROST DEGRADATION authKW 205228 1% 70% 49

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Geosciences, Multidisciplinary 56566 38% 1% 2013
2 Geography, Physical 37397 14% 1% 759
3 Soil Science 24461 13% 1% 686
4 Engineering, Civil 13849 15% 0% 773
5 Geology 13041 7% 1% 373
6 Engineering, Geological 12816 6% 1% 317
7 Engineering, Environmental 10252 12% 0% 613
8 Water Resources 9394 12% 0% 626
9 Environmental Sciences 5518 17% 0% 903
10 Meteorology & Atmospheric Sciences 4230 9% 0% 451

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 STATE FROZEN SOIL ENGN 1500068 7% 68% 371
2 COLD ARID REG ENVIRONM ENGN 315902 8% 13% 419
3 STATE FROZEN SOILS ENGN 154282 1% 68% 38
4 BEILUHE OBSERVAT STN FROZEN SOIL ENVIRONM ENGN 89763 0% 100% 15
5 CAREERI 80956 1% 31% 44
6 STATE FROZEN SOIL ENGN COLD ARID REG EN 63203 0% 81% 13
7 MELNIKOV PERMAFROST 55674 0% 42% 22
8 HIGHWAY CONSTRUCT MAINTENANCE TECHNOL P 50985 0% 61% 14
9 CRYOSPHERE STN QINGHAI TIBET PLATEAU 50557 0% 65% 13
10 COLD REG 48979 1% 30% 27

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PERMAFROST AND PERIGLACIAL PROCESSES 792860 6% 43% 310
2 COLD REGIONS SCIENCE AND TECHNOLOGY 678880 10% 23% 501
3 JOURNAL OF COLD REGIONS ENGINEERING 63877 1% 19% 55
4 CANADIAN GEOTECHNICAL JOURNAL 35219 3% 4% 144
5 JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 27120 2% 5% 89
6 CRYOSPHERE 23866 1% 6% 65
7 SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 20931 3% 2% 182
8 ARCTIC ANTARCTIC AND ALPINE RESEARCH 18723 1% 5% 59
9 ARCTIC AND ALPINE RESEARCH 17866 1% 6% 50
10 VADOSE ZONE JOURNAL 11823 1% 4% 56

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 PERMAFROST 2102059 14% 47% 743 Search PERMAFROST Search PERMAFROST
2 FROZEN SOIL 574416 3% 67% 143 Search FROZEN+SOIL Search FROZEN+SOIL
3 ACTIVE LAYER 442851 3% 49% 151 Search ACTIVE+LAYER Search ACTIVE+LAYER
4 THERMOKARST 314634 2% 63% 83 Search THERMOKARST Search THERMOKARST
5 FROST HEAVE 282441 1% 64% 74 Search FROST+HEAVE Search FROST+HEAVE
6 PERMAFROST DEGRADATION 205228 1% 70% 49 Search PERMAFROST+DEGRADATION Search PERMAFROST+DEGRADATION
7 THERMOKARST LAKES 180635 1% 75% 40 Search THERMOKARST+LAKES Search THERMOKARST+LAKES
8 PERMAFROST REGION 145550 1% 81% 30 Search PERMAFROST+REGION Search PERMAFROST+REGION
9 SOIL FREEZING 144569 1% 58% 42 Search SOIL+FREEZING Search SOIL+FREEZING
10 PALSA 134837 0% 87% 26 Search PALSA Search PALSA

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 2


rank cluster_id2 link
1 4108 ICE JAM//RIVER ICE//FRAZIL ICE
2 2226 TREELINE//TUNDRA//ARCTIC ANTARCTIC AND ALPINE RESEARCH
3 1849 PEATLAND//SPHAGNUM//BOG
4 1776 WIND EROSION//SNOW WATER EQUIVALENT//AEOLIAN RESEARCH
5 2729 WHITE NOSE SYNDROME//MCMURDO DRY VALLEYS//ANTARCTICA
6 855 LANDSLIDE//DEBRIS FLOW//LANDSLIDES
7 2441 GEOTHERMICS//BOREHOLE TEMPERATURES//MOGANITE
8 578 SOIL SCIENCE//SOIL & TILLAGE RESEARCH//SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
9 968 AGRICULTURAL WATER MANAGEMENT//EVAPOTRANSPIRATION//REFERENCE EVAPOTRANSPIRATION
10 323 SOIL MOISTURE//WATER RESOURCES//JOURNAL OF HYDROLOGY

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