Class information for:
Level 1: SODIUM LAYER//SPORADIC SODIUM LAYERS//MESOSPHERIC METAL

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
14889 744 33.7 57%


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
828 2             MESOSPHERE//JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS//JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS 11850
14889 1                   SODIUM LAYER//SPORADIC SODIUM LAYERS//MESOSPHERIC METAL 744

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 SODIUM LAYER authKW 422130 2% 86% 12
2 SPORADIC SODIUM LAYERS authKW 328326 1% 100% 8
3 MESOSPHERIC METAL authKW 205204 1% 100% 5
4 RESONANCE LIDAR authKW 205204 1% 100% 5
5 MESOSPHERIC SODIUM authKW 171002 1% 83% 5
6 PUERTO RICO PHOTON address 164163 1% 100% 4
7 LIDAR OBSERVATION authKW 131329 1% 80% 4
8 METEORIC ABLATION authKW 131329 1% 80% 4
9 MESOSPHERIC SODIUM LAYER authKW 123122 0% 100% 3
10 POTASSIUM LAYER authKW 123122 0% 100% 3

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 6464 26% 0% 197
2 Geosciences, Multidisciplinary 2690 23% 0% 169
3 Physics, Atomic, Molecular & Chemical 1847 20% 0% 152
4 Astronomy & Astrophysics 1249 18% 0% 134
5 Chemistry, Physical 1045 27% 0% 199
6 Geochemistry & Geophysics 442 7% 0% 55
7 Engineering, Aerospace 105 2% 0% 15
8 Optics 57 5% 0% 38
9 Thermodynamics 37 2% 0% 18
10 Engineering, General 34 2% 0% 16

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 PUERTO RICO PHOTON 164163 1% 100% 4
2 METEOROL KLIMAFOR ATMOSPHAR SPURENGASE 92340 0% 75% 3
3 RADAR SPACE SCI 68395 1% 33% 5
4 429UCB 41041 0% 100% 1
5 AERONOMY REA12 325 BROADWAY 41041 0% 100% 1
6 AERONOMY REAL2 325 BROADWAY 41041 0% 100% 1
7 ARECIBO OBSERV GEOSPACE STUDIES 41041 0% 100% 1
8 ATOM MOLEC PHYS HIGH ENERGY PHYS 41041 0% 100% 1
9 CHINESE MAGNET ONANCE ATOM PHYS 41041 0% 100% 1
10 ECOT614 41041 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 JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 17731 5% 1% 40
2 GEOPHYSICAL RESEARCH LETTERS 12724 14% 0% 102
3 JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS 11209 3% 1% 24
4 JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 8849 9% 0% 68
5 JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 6046 7% 0% 54
6 JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II 4809 2% 1% 14
7 ANNALES GEOPHYSICAE 3950 3% 1% 19
8 COMBUSTION 2278 0% 6% 1
9 HIGH TEMPERATURE 1780 2% 0% 13
10 JOURNAL OF PHYSICAL CHEMISTRY A 1277 4% 0% 31

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 SODIUM LAYER 422130 2% 86% 12 Search SODIUM+LAYER Search SODIUM+LAYER
2 SPORADIC SODIUM LAYERS 328326 1% 100% 8 Search SPORADIC+SODIUM+LAYERS Search SPORADIC+SODIUM+LAYERS
3 MESOSPHERIC METAL 205204 1% 100% 5 Search MESOSPHERIC+METAL Search MESOSPHERIC+METAL
4 RESONANCE LIDAR 205204 1% 100% 5 Search RESONANCE+LIDAR Search RESONANCE+LIDAR
5 MESOSPHERIC SODIUM 171002 1% 83% 5 Search MESOSPHERIC+SODIUM Search MESOSPHERIC+SODIUM
6 LIDAR OBSERVATION 131329 1% 80% 4 Search LIDAR+OBSERVATION Search LIDAR+OBSERVATION
7 METEORIC ABLATION 131329 1% 80% 4 Search METEORIC+ABLATION Search METEORIC+ABLATION
8 MESOSPHERIC SODIUM LAYER 123122 0% 100% 3 Search MESOSPHERIC+SODIUM+LAYER Search MESOSPHERIC+SODIUM+LAYER
9 POTASSIUM LAYER 123122 0% 100% 3 Search POTASSIUM+LAYER Search POTASSIUM+LAYER
10 SODIUM LIDAR 113998 1% 56% 5 Search SODIUM+LIDAR Search SODIUM+LIDAR

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 QIU, SC , TANG, YH , JIA, MJ , XUE, XH , DOU, XK , LI, T , WANG, YH , (2016) A REVIEW OF LATITUDINAL CHARACTERISTICS OF SPORADIC SODIUM LAYERS, INCLUDING NEW RESULTS FROM THE CHINESE MERIDIAN PROJECT.EARTH-SCIENCE REVIEWS. VOL. 162. ISSUE . P. 83 -106 90 85% 0
2 PLANE, JMC , FENG, W , DAWKINS, ECM , (2015) THE MESOSPHERE AND METALS: CHEMISTRY AND CHANGES.CHEMICAL REVIEWS. VOL. 115. ISSUE 10. P. 4497 -4541 109 37% 22
3 PLANE, JMC , (2003) ATMOSPHERIC CHEMISTRY OF METEORIC METALS.CHEMICAL REVIEWS. VOL. 103. ISSUE 12. P. 4963 -4984 87 55% 199
4 YI, F , ZHANG, SD , YU, CM , ZHANG, YP , HE, YJ , LIU, FC , HUANG, KM , HUANG, CM , TAN, Y , (2013) SIMULTANEOUS AND COMMON-VOLUME THREE-LIDAR OBSERVATIONS OF SPORADIC METAL LAYERS IN THE MESOPAUSE REGION.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS. VOL. 102. ISSUE . P. 172-184 46 92% 7
5 JIAO, J , YANG, GT , WANG, JH , CHENG, XW , LI, FQ , YANG, Y , GONG, W , WANG, ZL , DU, LF , YAN, CX , ET AL (2015) FIRST REPORT OF SPORADIC K LAYERS AND COMPARISON WITH SPORADIC NA LAYERS AT BEIJING, CHINA (40.6 DEGREES N, 116.2 DEGREES E).JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. VOL. 120. ISSUE 6. P. 5214 -5225 40 95% 1
6 DELGADO, R , FRIEDMAN, JS , FENTZKE, JT , RAIZADA, S , TEPLEY, CA , ZHOU, QH , (2012) SPORADIC METAL ATOM AND ION LAYERS AND THEIR CONNECTION TO CHEMISTRY AND THERMAL STRUCTURE IN THE MESOPAUSE REGION AT ARECIBO.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS. VOL. 74. ISSUE . P. 11-23 46 84% 16
7 RAIZADA, S , TEPLEY, CA , ZHOU, QH , SARKHEL, S , MATHEWS, J , APONTE, NA , SEKER, I , KERR, R , CABASSA, E , (2015) DEPENDENCE OF MESOSPHERIC NA AND FE DISTRIBUTIONS ON ELECTRON DENSITY AT ARECIBO.EARTH PLANETS AND SPACE. VOL. 67. ISSUE . P. - 47 80% 0
8 DOU, XK , XUE, XH , CHEN, TD , WAN, WX , CHENG, XW , LI, T , CHEN, C , QIU, S , CHEN, ZY , (2009) A STATISTICAL STUDY OF SPORADIC SODIUM LAYER OBSERVED BY SODIUM LIDAR AT HEFEI (31.8 DEGREES N, 117.3 DEGREES E).ANNALES GEOPHYSICAE. VOL. 27. ISSUE 6. P. 2247 -2257 42 98% 17
9 DAWKINS, ECM , PLANE, JMC , CHIPPERFIELD, MP , FENG, W , (2015) THE NEAR-GLOBAL MESOSPHERIC POTASSIUM LAYER: OBSERVATIONS AND MODELING.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES. VOL. 120. ISSUE 15. P. 7975 -7987 45 75% 0
10 YUE, XC , ZHOU, QH , YI, F , FRIEDMAN, J , RAIZADA, S , TEPLEY, C , (2016) SIMULTANEOUS AND COMMON-VOLUME LIDAR OBSERVATIONS OF K/NA LAYERS AND TEMPERATURE AT ARECIBO OBSERVATORY (18 DEGREES N, 67 DEGREES W).JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES. VOL. 121. ISSUE 13. P. 8038 -8054 41 80% 0

Classes with closest relation at Level 1


Rank Class id link
1 8399 NOCTILUCENT CLOUDS//POLAR MESOSPHERIC CLOUDS//PMSE
2 7406 AIRGLOW//AIRGLOW AND AURORA//HYDROXYL AIRGLOW
3 9470 IONOSPHERIC IRREGULARITIES//SPORADIC E//SPORADIC E LAYER
4 2215 MIDDLE ATMOSPHERE DYNAMICS//WAVES AND TIDES//PLANETARY WAVES
5 9790 QUIM FIS ARTADO 644//BAD 3//ELECTRONIC BRANCHING RATIOS
6 3721 METEORS//METEOROIDS//METEORS METEOROIDS
7 18037 LONG TERM TRENDS//IONOSPHERIC TRENDS//GEOMAGNETISM AND AERONOMY
8 9374 SHANGHAI MOL CATALYSTS INNOVAT MAT//LASER CHEM//BORON CARBONYL
9 21986 DOPPLER GLOBAL VELOCIMETRY//PLANAR DOPPLER VELOCIMETRY//ATOMIC FILTER
10 1792 GRAVITY WAVES//MST RADAR//RADIO SCIENCE

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