Class information for:
Level 1: SOLAR PHYSICS//SOLAR ACTIVITY//SUN ACTIVITY

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
23 4 ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON 393400
45 3       JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS//ASTRONOMY & ASTROPHYSICS//SOLAR PHYSICS 104301
871 2             SUN PARTICLE EMISSION//SUN HELIOSPHERE//SOLAR PHYSICS 11662
2718 1                   SOLAR PHYSICS//SOLAR ACTIVITY//SUN ACTIVITY 2197

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SOLAR PHYSICS journal 505726 23% 7% 497
2 SOLAR ACTIVITY authKW 375322 7% 18% 145
3 SUN ACTIVITY authKW 369448 12% 10% 263
4 SUNSPOTS authKW 344281 8% 13% 186
5 SUN SUNSPOTS authKW 260795 3% 25% 72
6 SUNSPOT NUMBER authKW 260749 2% 45% 40
7 SOLAR CYCLE authKW 248961 4% 19% 93
8 SUNSPOTS STATISTICS authKW 218110 1% 72% 21
9 OULU UNIT address 155941 2% 25% 44
10 SODANKYLA GEOPHYS OBSERV address 147625 3% 17% 59

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Astronomy & Astrophysics 66949 71% 0% 1566
2 Geochemistry & Geophysics 6352 15% 0% 337
3 Meteorology & Atmospheric Sciences 5704 15% 0% 325
4 Geosciences, Multidisciplinary 3971 16% 0% 361
5 Engineering, Aerospace 499 3% 0% 55
6 History & Philosophy of Science 21 0% 0% 10
7 Physics, Multidisciplinary 14 3% 0% 66
8 Geography, Physical 5 1% 0% 12
9 Remote Sensing 0 0% 0% 5
10 Medieval & Renaissance Studies 0 0% 0% 1

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OULU UNIT 155941 2% 25% 44
2 SODANKYLA GEOPHYS OBSERV 147625 3% 17% 59
3 UK SOLAR SYST DATA 87853 0% 88% 7
4 UNIV INVEST AGUA CAMBIO CLIMAT SOSTENIBILI 59753 0% 42% 10
5 SOLAR ACT 57203 2% 9% 43
6 OLVE EXCELLENCE 53192 1% 23% 16
7 YUNNAN OBSERV 41694 3% 5% 64
8 MATH PHYS MODELS 39839 0% 56% 5
9 SPACE CLIMATE UNIT 33459 0% 33% 7
10 DATING 14C 32594 0% 45% 5

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 SOLAR PHYSICS 505726 23% 7% 497
2 BULLETIN OF THE ASTRONOMICAL INSTITUTES OF CZECHOSLOVAKIA 53212 2% 8% 45
3 GEOMAGNETISM AND AERONOMY 27460 3% 3% 63
4 LIVING REVIEWS IN SOLAR PHYSICS 14942 0% 15% 7
5 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 12638 6% 1% 134
6 NEW ASTRONOMY 11476 2% 2% 35
7 JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 11401 3% 1% 55
8 RADIOCARBON 9084 2% 2% 41
9 JOURNAL OF SPACE WEATHER AND SPACE CLIMATE 9019 1% 6% 11
10 ADVANCES IN SPACE RESEARCH 8504 4% 1% 77

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 SOLAR ACTIVITY 375322 7% 18% 145 Search SOLAR+ACTIVITY Search SOLAR+ACTIVITY
2 SUN ACTIVITY 369448 12% 10% 263 Search SUN+ACTIVITY Search SUN+ACTIVITY
3 SUNSPOTS 344281 8% 13% 186 Search SUNSPOTS Search SUNSPOTS
4 SUN SUNSPOTS 260795 3% 25% 72 Search SUN+SUNSPOTS Search SUN+SUNSPOTS
5 SUNSPOT NUMBER 260749 2% 45% 40 Search SUNSPOT+NUMBER Search SUNSPOT+NUMBER
6 SOLAR CYCLE 248961 4% 19% 93 Search SOLAR+CYCLE Search SOLAR+CYCLE
7 SUNSPOTS STATISTICS 218110 1% 72% 21 Search SUNSPOTS+STATISTICS Search SUNSPOTS+STATISTICS
8 SOLAR CYCLE OBSERVATIONS 95865 1% 35% 19 Search SOLAR+CYCLE+OBSERVATIONS Search SOLAR+CYCLE+OBSERVATIONS
9 NORTH SOUTH ASYMMETRY 86769 1% 55% 11 Search NORTH+SOUTH+ASYMMETRY Search NORTH+SOUTH+ASYMMETRY
10 SPACE CLIMATE 82636 1% 52% 11 Search SPACE+CLIMATE Search SPACE+CLIMATE

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 1


rank cluster_id2 link
1 1667 SUN ROTATION//SUN INTERIOR//SOLAR PHYSICS
2 8845 SOLAR ACTIVITY//SOLAR VARIABILITY//ATMOSPHERIC ELECTRICITY
3 37381 ATMOSPHERIC AND OCEAN PARAMETERS//FREQUENCY CHARACTERISTICS OF RELATIONSHIP//POLAR GEOPHYS KOLA SCI
4 6348 SAN FERNANDO OBSERV//SUN FACULAE PLAGES//SOLAR PHYSICS
5 4824 COSMIC RAYS//FORBUSH DECREASE//HELIOSPHERE
6 18285 GEOMAGNETICALLY INDUCED CURRENTS//GEOMAGNETICALLY INDUCED CURRENTS GIC//GEOMAGNET
7 689 MAGNETIC CLOUDS//CORONAL MASS EJECTIONS//SOLAR WIND
8 24043 K CORONA//HOPKINS OBSERV//COR1
9 15748 SPACE SCI TECHNOL BRANCH//DST PREDICTION//SARISSA TECHNOL
10 31460 NUCL REACT NUCL MED//LIFE EXTINCTION//RADIOISOTOPES OF NEPTUNIUM AND PLUTONIUM

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