Class information for:
Level 1: ACTIVE EXPERIMENTS//IONOSPHERIC HEATING//STIMULATED ELECTROMAGNETIC EMISSION

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
491 2             IONOSPHERE//JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS//EQUATORIAL IONOSPHERE 15919
7099 1                   ACTIVE EXPERIMENTS//IONOSPHERIC HEATING//STIMULATED ELECTROMAGNETIC EMISSION 1433

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ACTIVE EXPERIMENTS authKW 601770 3% 61% 45
2 IONOSPHERIC HEATING authKW 530944 2% 93% 26
3 STIMULATED ELECTROMAGNETIC EMISSION authKW 178133 1% 90% 9
4 IONOSPHERIC MODIFICATION authKW 168927 1% 59% 13
5 RADIOPHYSICS AND QUANTUM ELECTRONICS journal 168471 6% 10% 79
6 HF HEATING authKW 137021 1% 69% 9
7 HAARP authKW 91631 0% 83% 5
8 RADIO SCIENCE journal 88463 10% 3% 137
9 PHILIPS GEOPHYS address 87968 0% 100% 4
10 GEOMAGNETIZM I AERONOMIYA journal 87337 8% 3% 118

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Meteorology & Atmospheric Sciences 12738 27% 0% 383
2 Geochemistry & Geophysics 11955 26% 0% 366
3 Astronomy & Astrophysics 11577 37% 0% 537
4 Remote Sensing 6748 10% 0% 138
5 Geosciences, Multidisciplinary 3077 18% 0% 255
6 Physics, Fluids & Plasmas 2344 10% 0% 148
7 Telecommunications 2199 11% 0% 158
8 Physics, Multidisciplinary 461 10% 0% 140
9 Engineering, Electrical & Electronic 321 11% 0% 162
10 Physics, Applied 188 10% 0% 149

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PHILIPS GEOPHYS 87968 0% 100% 4
2 LOIS SPACE 54975 0% 50% 5
3 TERR MAGNET IONOSPHERE RADIOWAVE PROPAGAT 43984 0% 100% 2
4 ELE OMAGNET ENVIRONM 41274 1% 14% 13
5 UPPSALA 40203 1% 12% 15
6 SPACE VEHICLES DIRECTORATE 38876 3% 4% 45
7 VSBI 32985 0% 50% 3
8 AURORAL OBSERV 29702 1% 14% 10
9 SERGIEV POSAD BRANCH 29321 0% 67% 2
10 AFRL USBI 21992 0% 100% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 RADIOPHYSICS AND QUANTUM ELECTRONICS 168471 6% 10% 79
2 RADIO SCIENCE 88463 10% 3% 137
3 GEOMAGNETIZM I AERONOMIYA 87337 8% 3% 118
4 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 71138 18% 1% 255
5 JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS 45490 5% 3% 66
6 IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII RADIOFIZIKA 36584 4% 3% 58
7 JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 17538 4% 1% 55
8 ANNALES GEOPHYSICAE 12763 3% 1% 47
9 GEOPHYSICAL RESEARCH LETTERS 9738 9% 0% 124
10 JOURNAL OF PLASMA PHYSICS 9574 3% 1% 36

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 ACTIVE EXPERIMENTS 601770 3% 61% 45 Search ACTIVE+EXPERIMENTS Search ACTIVE+EXPERIMENTS
2 IONOSPHERIC HEATING 530944 2% 93% 26 Search IONOSPHERIC+HEATING Search IONOSPHERIC+HEATING
3 STIMULATED ELECTROMAGNETIC EMISSION 178133 1% 90% 9 Search STIMULATED+ELECTROMAGNETIC+EMISSION Search STIMULATED+ELECTROMAGNETIC+EMISSION
4 IONOSPHERIC MODIFICATION 168927 1% 59% 13 Search IONOSPHERIC+MODIFICATION Search IONOSPHERIC+MODIFICATION
5 HF HEATING 137021 1% 69% 9 Search HF+HEATING Search HF+HEATING
6 HAARP 91631 0% 83% 5 Search HAARP Search HAARP
7 IONOSPHERE ACTIVE EXPERIMENTS 78540 0% 71% 5 Search IONOSPHERE+ACTIVE+EXPERIMENTS Search IONOSPHERE+ACTIVE+EXPERIMENTS
8 RADIO SCIENCE NONLINEAR PHENOMENA 70373 0% 80% 4 Search RADIO+SCIENCE+NONLINEAR+PHENOMENA Search RADIO+SCIENCE+NONLINEAR+PHENOMENA
9 ELF WAVES 68721 0% 63% 5 Search ELF+WAVES Search ELF+WAVES
10 HF PUMPING OF THE IONOSPHERE 65976 0% 100% 3 Search HF+PUMPING+OF+THE+IONOSPHERE Search HF+PUMPING+OF+THE+IONOSPHERE

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 35472 ARTIFICIAL PERIODIC IRREGULARITIES//ARTIFICIAL PERIODIC IRREGULARITIES APIS//INTERNAL GRAVITY WAVE IGW
2 23409 INCOHERENT SCATTER RADAR//AMISR//INCOHERENT RADAR SPECTRA
3 22192 SOUNDER ACCELERATED ELECTRONS//Z MODE//ACTIVE PLASMA ANTENNA
4 10356 WHISTLERS//JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS//TWEEK ATMOSPHERICS
5 20136 ELECTRON BERNSTEIN WAVE//COLLECTIVE THOMSON SCATTERING//ELECTRON CYCLOTRON LAUNCHER
6 25814 CUBIC QUINTIC SCHRODINGER EQUATION//OPTICAL LOSSLESS CUBIC QUINTIC SCHRODINGER EQUATION//CONTROLLED THERMONUCL
7 19435 ARTIFICIAL IONOSPHERIC HOLE//BARIUM RELEASES//PULSED POWER LASER TECHNOL STATE
8 18582 IONOGRAM//AUTOMATIC SCALING//IONOSONDE
9 4477 SUN RADIO RADIATION//SOLAR PHYSICS//ZEBRA PATTERN
10 9395 IONOSPHERIC IRREGULARITIES//SPORADIC E//SPORADIC E LAYER

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