Class information for:
Level 1: IONOSPHERIC TOMOGRAPHY//COMPUTERIZED IONOSPHERIC TOMOGRAPHY//COMPUTERIZED IONOSPHERIC TOMOGRAPHY CIT

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
20712 448 20.5 53%


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
20712 1                   IONOSPHERIC TOMOGRAPHY//COMPUTERIZED IONOSPHERIC TOMOGRAPHY//COMPUTERIZED IONOSPHERIC TOMOGRAPHY CIT 448

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 IONOSPHERIC TOMOGRAPHY authKW 1221793 5% 81% 22
2 COMPUTERIZED IONOSPHERIC TOMOGRAPHY authKW 417468 2% 88% 7
3 COMPUTERIZED IONOSPHERIC TOMOGRAPHY CIT authKW 350527 1% 86% 6
4 IMAGE RECONSTRUCTION FROM PROJECTIONS authKW 238547 2% 50% 7
5 IONOSPHERIC ELECTRON DENSITY IED authKW 204475 1% 100% 3
6 IONOSPHERIC IMAGING authKW 204475 1% 100% 3
7 IONOSPHERIC ELECTRON DENSITY authKW 175257 1% 43% 6
8 SATELLITE POSITIONING NAV address 136317 0% 100% 2
9 STATISTICAL RECONSTRUCTION ALGORITHM authKW 136317 0% 100% 2
10 STATISTICALLY TAILORED NEURAL NETWORK authKW 136317 0% 100% 2

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 Remote Sensing 12989 23% 0% 104
2 Meteorology & Atmospheric Sciences 8040 38% 0% 169
3 Geochemistry & Geophysics 7648 36% 0% 163
4 Astronomy & Astrophysics 3782 38% 0% 172
5 Telecommunications 2433 20% 0% 89
6 Imaging Science & Photographic Technology 1167 7% 0% 33
7 Geosciences, Multidisciplinary 1160 19% 0% 87
8 Engineering, Electrical & Electronic 196 15% 0% 65
9 Optics 115 8% 0% 36
10 Engineering, Aerospace 98 2% 0% 11

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 SATELLITE POSITIONING NAV 136317 0% 100% 2
2 ADV DIGITAL COMMUN TECHNOL 68158 0% 100% 1
3 AERCIBO OBSERV 68158 0% 100% 1
4 CHAIR PHYS ATMOSPHERE 68158 0% 100% 1
5 COMP SCI SYST 313 68158 0% 100% 1
6 FIS PL CARRARA 68158 0% 100% 1
7 IONOSPHER HAZARDS SPECIFICAT FORECAST 68158 0% 100% 1
8 NERTU 68158 0% 100% 1
9 SATCOM IT PLICAT AREA 68158 0% 100% 1
10 SIGNAL GEOPHYS 68158 0% 100% 1

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 RADIO SCIENCE 79144 16% 2% 73
2 INTERNATIONAL JOURNAL OF IMAGING SYSTEMS AND TECHNOLOGY 20496 4% 2% 16
3 ANNALES GEOPHYSICAE-ATMOSPHERES HYDROSPHERES AND SPACE SCIENCES 17932 4% 1% 20
4 GPS SOLUTIONS 10478 2% 2% 9
5 GEOMAGNETIZM I AERONOMIYA 5607 4% 0% 17
6 ADVANCES IN SPACE RESEARCH 4389 6% 0% 25
7 ANNALS OF GEOPHYSICS 3668 2% 1% 8
8 JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 3595 3% 0% 14
9 PHYSICS AND CHEMISTRY OF THE EARTH PART C-SOLAR-TERRESTIAL AND PLANETARY SCIENCE 3307 1% 1% 4
10 JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS 3226 2% 0% 10

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 IONOSPHERIC TOMOGRAPHY 1221793 5% 81% 22 Search IONOSPHERIC+TOMOGRAPHY Search IONOSPHERIC+TOMOGRAPHY
2 COMPUTERIZED IONOSPHERIC TOMOGRAPHY 417468 2% 88% 7 Search COMPUTERIZED+IONOSPHERIC+TOMOGRAPHY Search COMPUTERIZED+IONOSPHERIC+TOMOGRAPHY
3 COMPUTERIZED IONOSPHERIC TOMOGRAPHY CIT 350527 1% 86% 6 Search COMPUTERIZED+IONOSPHERIC+TOMOGRAPHY+CIT Search COMPUTERIZED+IONOSPHERIC+TOMOGRAPHY+CIT
4 IMAGE RECONSTRUCTION FROM PROJECTIONS 238547 2% 50% 7 Search IMAGE+RECONSTRUCTION+FROM+PROJECTIONS Search IMAGE+RECONSTRUCTION+FROM+PROJECTIONS
5 IONOSPHERIC ELECTRON DENSITY IED 204475 1% 100% 3 Search IONOSPHERIC+ELECTRON+DENSITY+IED Search IONOSPHERIC+ELECTRON+DENSITY+IED
6 IONOSPHERIC IMAGING 204475 1% 100% 3 Search IONOSPHERIC+IMAGING Search IONOSPHERIC+IMAGING
7 IONOSPHERIC ELECTRON DENSITY 175257 1% 43% 6 Search IONOSPHERIC+ELECTRON+DENSITY Search IONOSPHERIC+ELECTRON+DENSITY
8 STATISTICAL RECONSTRUCTION ALGORITHM 136317 0% 100% 2 Search STATISTICAL+RECONSTRUCTION+ALGORITHM Search STATISTICAL+RECONSTRUCTION+ALGORITHM
9 STATISTICALLY TAILORED NEURAL NETWORK 136317 0% 100% 2 Search STATISTICALLY+TAILORED+NEURAL+NETWORK Search STATISTICALLY+TAILORED+NEURAL+NETWORK
10 THE MULTIPLICATIVE ALGEBRAIC RECONSTRUCTION TECHNIQUE MART 136317 0% 100% 2 Search THE+MULTIPLICATIVE+ALGEBRAIC+RECONSTRUCTION+TECHNIQUE+MART Search THE+MULTIPLICATIVE+ALGEBRAIC+RECONSTRUCTION+TECHNIQUE+MART

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 BUST, GS , MITCHELL, CN , (2008) HISTORY, CURRENT STATE, AND FUTURE DIRECTIONS OF IONOSPHERIC IMAGING.REVIEWS OF GEOPHYSICS. VOL. 46. ISSUE 1. P. - 67 61% 74
2 ZHENG, DY , LI, PQ , HE, J , HU, WS , LI, CK , (2016) RESEARCH ON IONOSPHERIC TOMOGRAPHY BASED ON VARIABLE PIXEL HEIGHT.ADVANCES IN SPACE RESEARCH. VOL. 57. ISSUE 9. P. 1847 -1858 28 90% 0
3 ZHENG, DY , HU, WS , NIE, WF , (2015) MULTISCALE IONOSPHERIC TOMOGRAPHY.GPS SOLUTIONS. VOL. 19. ISSUE 4. P. 579 -588 29 83% 0
4 BHUYAN, K , SINGH, SB , BHUYAN, PK , (2004) APPLICATION OF GENERALIZED SINGULAR VALUE DECOMPOSITION TO IONOSPHERIC TOMOGRAPHY.ANNALES GEOPHYSICAE. VOL. 22. ISSUE 10. P. 3437-3444 28 93% 8
5 PRYSE, SE , (2003) RADIO TOMOGRAPHY: A NEW EXPERIMENTAL TECHNIQUE.SURVEYS IN GEOPHYSICS. VOL. 24. ISSUE 1. P. 1-38 41 62% 35
6 YAO, YB , TANG, J , CHEN, P , ZHANG, S , CHEN, JJ , (2014) AN IMPROVED ITERATIVE ALGORITHM FOR 3-D IONOSPHERIC TOMOGRAPHY RECONSTRUCTION.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING. VOL. 52. ISSUE 8. P. 4696-4706 23 82% 5
7 NANDI, S , BANDYOPADHYAY, B , (2015) STUDY OF LOW-LATITUDE IONOSPHERE OVER INDIAN REGION USING SIMULTANEOUS ALGEBRAIC RECONSTRUCTION TECHNIQUE.ADVANCES IN SPACE RESEARCH. VOL. 55. ISSUE 2. P. 545 -553 23 82% 1
8 BHUYAN, K , BHUYAN, PK , (2007) INTERNATIONAL REFERENCE IONOSPHERE AS A POTENTIAL REGULARIZATION PROFILE FOR COMPUTERIZED IONOSPHERIC TOMOGRAPHY.ADVANCES IN SPACE RESEARCH. VOL. 39. ISSUE 5. P. 851-858 24 96% 3
9 OU, M , ZHEN, WM , LIU, YW , DENG, ZX , XIONG, W , XU, JS , (2015) A NEW IONOSPHERIC TOMOGRAPHY ALGORITHM BASED ON LEO BEACON MEASUREMENT.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION. VOL. 58. ISSUE 10. P. 3469 -3480 23 79% 0
10 YAO, YB , TANG, J , KONG, J , ZHANG, L , ZHANG, S , (2013) APPLICATION OF HYBRID REGULARIZATION METHOD FOR TOMOGRAPHIC RECONSTRUCTION OF MIDLATITUDE IONOSPHERIC ELECTRON DENSITY.ADVANCES IN SPACE RESEARCH. VOL. 52. ISSUE 12. P. 2215-2225 22 81% 5

Classes with closest relation at Level 1


Rank Class id link
1 174 IONOSPHERE//TOTAL ELECTRON CONTENT//IONOSPHERIC STORM
2 19135 GEOMAGNETIZM I AERONOMIYA//SAR ARCS//SUBAURORAL ION DRIFT
3 16142 IONOGRAM//AUTOMATIC SCALING//RADIO SCIENCE
4 34716 CLIP7//CUSTOM LSI//PRIMAL DUAL METHOD FOR OPTIMIZATION
5 14319 MSTID//TRAVELING IONOSPHERIC DISTURBANCES//MEDIUM SCALE TRAVELING IONOSPHERIC DISTURBANCES
6 17748 GEOCORONAL HYDROGEN//TECHNIQUES AND METHODS//THERMOSPHERIC REMOTE SENSING
7 32383 ACOUSTIC SIGNAL FROM NEUTRINO BEAM//FORECAST OF EARTHQUAKE//QGSJET
8 15386 RADIO OCCULTATION//GPS RADIO OCCULTATION//WEGENER CLIMATE GLOBAL CHANGE WEGC
9 2936 IONOSPHERIC IRREGULARITIES//EQUATORIAL IONOSPHERE//PLASMA BUBBLES
10 31977 GEOMAGNETIZM I AERONOMIYA//ACTIVE CONTROL OF A BODY CHARGE//AIRCRAFT CHARGING

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