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

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
7501 1361 21.8 49%


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
19 4 ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON 523489
45 3       JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS//ASTRONOMY & ASTROPHYSICS//SOLAR PHYSICS 95613
625 2             IONOSPHERE//JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS//EQUATORIAL IONOSPHERE 13833
7501 1                   ACTIVE EXPERIMENTS//IONOSPHERIC HEATING//STIMULATED ELECTROMAGNETIC EMISSION 1361

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ACTIVE EXPERIMENTS authKW 650254 3% 63% 46
2 IONOSPHERIC HEATING authKW 452422 2% 92% 22
3 STIMULATED ELECTROMAGNETIC EMISSION authKW 181716 1% 90% 9
4 IONOSPHERIC MODIFICATION authKW 172326 1% 59% 13
5 RADIOPHYSICS AND QUANTUM ELECTRONICS journal 171266 6% 10% 76
6 HF HEATING authKW 139778 1% 69% 9
7 HAARP authKW 93475 0% 83% 5
8 PHILIPS GEOPHYS address 89737 0% 100% 4
9 RADIO SCIENCE journal 83787 10% 3% 131
10 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS journal 73918 19% 1% 254

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Meteorology & Atmospheric Sciences 12484 27% 0% 370
2 Astronomy & Astrophysics 11789 39% 0% 529
3 Geochemistry & Geophysics 9979 24% 0% 328
4 Remote Sensing 6633 10% 0% 131
5 Geosciences, Multidisciplinary 3182 19% 0% 252
6 Telecommunications 2179 11% 0% 151
7 Physics, Fluids & Plasmas 2109 10% 0% 137
8 Physics, Multidisciplinary 401 9% 0% 129
9 Engineering, Electrical & Electronic 310 11% 0% 154
10 Physics, Applied 180 10% 0% 142

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PHILIPS GEOPHYS 89737 0% 100% 4
2 LOIS SPACE 56081 0% 50% 5
3 TERR MAGNET IONOSPHERE RADIOWAVE PROPAGAT 44869 0% 100% 2
4 SPACE VEHICLES DIRECTORATE 41251 3% 4% 45
5 UPPSALA 41012 1% 12% 15
6 VSBI 33648 0% 50% 3
7 AURORAL OBSERV 30715 1% 14% 10
8 ARCTIC ANTARCTIC AANII 29911 0% 67% 2
9 SERGIEV POSAD BRANCH 29911 0% 67% 2
10 ELE OMAGNET ENVIRONM 24541 1% 12% 9

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 RADIOPHYSICS AND QUANTUM ELECTRONICS 171266 6% 10% 76
2 RADIO SCIENCE 83787 10% 3% 131
3 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 73918 19% 1% 254
4 GEOMAGNETIZM I AERONOMIYA 57796 7% 3% 95
5 JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS 46407 5% 3% 66
6 IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII RADIOFIZIKA 32361 4% 3% 54
7 JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 15113 4% 1% 50
8 ANNALES GEOPHYSICAE 14403 4% 1% 49
9 JOURNAL OF PLASMA PHYSICS 11197 3% 1% 38
10 GEOPHYSICAL RESEARCH LETTERS 10198 9% 0% 124

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 ACTIVE EXPERIMENTS 650254 3% 63% 46 Search ACTIVE+EXPERIMENTS Search ACTIVE+EXPERIMENTS
2 IONOSPHERIC HEATING 452422 2% 92% 22 Search IONOSPHERIC+HEATING Search IONOSPHERIC+HEATING
3 STIMULATED ELECTROMAGNETIC EMISSION 181716 1% 90% 9 Search STIMULATED+ELECTROMAGNETIC+EMISSION Search STIMULATED+ELECTROMAGNETIC+EMISSION
4 IONOSPHERIC MODIFICATION 172326 1% 59% 13 Search IONOSPHERIC+MODIFICATION Search IONOSPHERIC+MODIFICATION
5 HF HEATING 139778 1% 69% 9 Search HF+HEATING Search HF+HEATING
6 HAARP 93475 0% 83% 5 Search HAARP Search HAARP
7 HF PUMPING OF THE IONOSPHERE 67303 0% 100% 3 Search HF+PUMPING+OF+THE+IONOSPHERE Search HF+PUMPING+OF+THE+IONOSPHERE
8 IONOSPHERE HEATING 67303 0% 100% 3 Search IONOSPHERE+HEATING Search IONOSPHERE+HEATING
9 IONOSPHERE ACTIVE EXPERIMENTS 59822 0% 67% 4 Search IONOSPHERE+ACTIVE+EXPERIMENTS Search IONOSPHERE+ACTIVE+EXPERIMENTS
10 ELF WAVES 51275 0% 57% 4 Search ELF+WAVES Search ELF+WAVES

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.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 LEYSER, TB , (2001) STIMULATED ELECTROMAGNETIC EMISSIONS BY HIGH-FREQUENCY ELECTROMAGNETIC PUMPING OF THE IONOSPHERIC PLASMA.SPACE SCIENCE REVIEWS. VOL. 98. ISSUE 3-4. P. 223 -328 122 98% 96
2 MISHIN, E , WATKINS, B , LEHTINEN, N , ELIASSON, B , PEDERSEN, T , GRACH, S , (2016) ARTIFICIAL IONOSPHERIC LAYERS DRIVEN BY HIGH-FREQUENCY RADIOWAVES: AN ASSESSMENT.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. VOL. 121. ISSUE 4. P. 3497 -3524 76 89% 2
3 ZHOU, C , NI, BB , WANG, X , LIU, MR , XU, X , WANG, C , SHI, R , GU, XD , ZHANG, YN , ZHAO, ZY , (2016) A NUMERICAL STUDY OF LARGE-SCALE IONOSPHERIC MODULATION DUE TO THE THERMAL PROCESS BY POWERFUL WAVE HEATING.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. VOL. 121. ISSUE 3. P. 2704 -2714 66 99% 0
4 GUREVICH, AV , (2007) NONLINEAR EFFECTS IN THE IONOSPHERE.PHYSICS-USPEKHI. VOL. 50. ISSUE 11. P. 1091 -1121 69 95% 91
5 DJUTH, FT , DUBOIS, DF , (2015) TEMPORAL DEVELOPMENT OF HF-EXCITED LANGMUIR AND ION TURBULENCE AT ARECIBO.EARTH MOON AND PLANETS. VOL. 116. ISSUE 1. P. 19 -53 79 78% 0
6 STUBBE, P , (1996) REVIEW OF IONOSPHERIC MODIFICATION EXPERIMENTS AT TROMSO.JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS. VOL. 58. ISSUE 1-4. P. 349-368 75 96% 101
7 ASHRAFI, M , KOSCH, MJ , KAILA, K , ISHAM, B , (2007) SPATIOTEMPORAL EVOLUTION OF RADIO WAVE PUMP-INDUCED IONOSPHERIC PHENOMENA NEAR THE FOURTH ELECTRON GYROHARMONIC.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. VOL. 112. ISSUE A5. P. - 56 98% 17
8 KUO, SP , (2015) IONOSPHERIC MODIFICATIONS IN HIGH FREQUENCY HEATING EXPERIMENTS.PHYSICS OF PLASMAS. VOL. 22. ISSUE 1. P. - 38 93% 7
9 WONG, AY , LEYSER, TB , (2009) POWERFUL ELECTROMAGNETIC WAVES FOR ACTIVE ENVIRONMENTAL RESEARCH IN GEOSPACE.REVIEWS OF GEOPHYSICS. VOL. 47. ISSUE . P. - 73 60% 8
10 BLAGOVESHCHENSKAYA, NF , BORISOVA, TD , YEOMAN, TK , HAGGSTROM, I , KALISHIN, AS , (2015) MODIFICATION OF THE HIGH LATITUDE IONOSPHERE F REGION BY X-MODE POWERFUL HF RADIO WAVES: EXPERIMENTAL RESULTS FROM MULTI-INSTRUMENT DIAGNOSTICS.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS. VOL. 135. ISSUE . P. 50 -63 37 100% 2

Classes with closest relation at Level 1


Rank Class id link
1 33602 ARTIFICIAL PERIODIC IRREGULARITIES//ARTIFICIAL PERIODIC IRREGULARITIES APIS//INTERNAL GRAVITY WAVE IGW
2 22395 INCOHERENT SCATTER//INCOHERENT RADAR SPECTRA//AURORAL IONOSPHERE
3 25936 SOUNDER ACCELERATED ELECTRONS//Z MODE//CHERENKOV CRITERION
4 22536 ELECT PROP PLASMA DYNAM EPPDYL//LEUVEN MATH MODELLING COMPUTAT SCI LMCC//PLASMA HOLE
5 8563 LANGMUIR WAVES//LANGMUIR TURBULENCE//STRONG LANGMUIR TURBULENCE
6 22159 COUPLED SCHRODINGER BOUSSINESQ EQUATIONS//GINZBURG LANDAU BBM EQUATIONS//APPROXIMATE STATIONARY SOLITON SOLUTION
7 9470 IONOSPHERIC IRREGULARITIES//SPORADIC E//SPORADIC E LAYER
8 20497 ELECTRON BERNSTEIN WAVE//COLLECTIVE THOMSON SCATTERING//ELECTRON CYCLOTRON LAUNCHER
9 16600 AURORAL KILOMETRIC RADIATION//MASER INSTABILITY//AURORAL RADIO EMISSIONS
10 30309 COSM PLASMA PHYS//AMPLIFIED WAVE//BEHAVIOR PATTERNS DISCOVERY

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