Class information for:
Level 1: VLF EM//VLF EM METHOD//FRASER FILTER

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
26512 253 20.5 34%


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
16 4 ENGINEERING, CIVIL//CONSTRUCTION & BUILDING TECHNOLOGY//MECHANICS 627508
353 3       GEOPHYSICS//GEOPHYSICAL PROSPECTING//GEOCHEMISTRY & GEOPHYSICS 35074
726 2             GEOPHYSICS//JOURNAL OF APPLIED GEOPHYSICS//MAGNETOTELLURICS 12661
26512 1                   VLF EM//VLF EM METHOD//FRASER FILTER 253

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 VLF EM authKW 1544864 6% 80% 16
2 VLF EM METHOD authKW 386216 2% 80% 4
3 FRASER FILTER authKW 362079 1% 100% 3
4 SPSZ authKW 271558 1% 75% 3
5 VLF R authKW 271558 1% 75% 3
6 BELDIH MINE authKW 241386 1% 100% 2
7 GRADIENT RESISTIVITY PROFILING authKW 241386 1% 100% 2
8 VLF ELECTROMAGNETIC authKW 217245 1% 60% 3
9 VLF authKW 171791 4% 13% 11
10 GRADIENT PROFILING authKW 160923 1% 67% 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 Geochemistry & Geophysics 5649 42% 0% 105
2 Mining & Mineral Processing 2706 11% 0% 27
3 Geosciences, Multidisciplinary 2450 36% 0% 92
4 Remote Sensing 1638 11% 0% 28
5 Telecommunications 500 12% 0% 31
6 Imaging Science & Photographic Technology 365 6% 0% 14
7 Engineering, Electrical & Electronic 183 18% 0% 45
8 Meteorology & Atmospheric Sciences 118 7% 0% 17
9 Mineralogy 84 3% 0% 7
10 Geography, Physical 56 3% 0% 7

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 THEORET MODELING GRP 135776 1% 38% 3
2 BACKUP 120693 0% 100% 1
3 CERS GEO 120693 0% 100% 1
4 DIPARIMENTO GEOINGN TECNOL AMBIENTALI 120693 0% 100% 1
5 ETSE TELECOMUNNICAC 120693 0% 100% 1
6 LUMBERGER GEOSOLUT 120693 0% 100% 1
7 PL MARINE PHYS UNDERWATER TECHNOL 120693 0% 100% 1
8 DEGGE IDL 60345 0% 50% 1
9 SCI INGN MAT AMBIENTE URBANIST 60345 0% 50% 1
10 SECT PHYS PROBLEMS 60345 0% 50% 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 GERLANDS BEITRAGE ZUR GEOPHYSIK 58704 2% 8% 6
2 GEOEXPLORATION 54841 4% 5% 10
3 GEOPHYSICAL PROSPECTING 45929 12% 1% 30
4 JOURNAL OF APPLIED GEOPHYSICS 19930 8% 1% 19
5 RADIO SCIENCE 5136 6% 0% 14
6 GEOPHYSICS 4684 7% 0% 17
7 ARABIAN JOURNAL OF GEOSCIENCES 4421 4% 0% 10
8 TRANSACTIONS OF THE INSTITUTION OF MINING AND METALLURGY SECTION B-APPLIED EARTH SCIENCE 4411 2% 1% 4
9 IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 2627 6% 0% 14
10 JOURNAL OF GEOPHYSICS AND ENGINEERING 2370 2% 0% 4

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 VLF EM 1544864 6% 80% 16 Search VLF+EM Search VLF+EM
2 VLF EM METHOD 386216 2% 80% 4 Search VLF+EM+METHOD Search VLF+EM+METHOD
3 FRASER FILTER 362079 1% 100% 3 Search FRASER+FILTER Search FRASER+FILTER
4 SPSZ 271558 1% 75% 3 Search SPSZ Search SPSZ
5 VLF R 271558 1% 75% 3 Search VLF+R Search VLF+R
6 BELDIH MINE 241386 1% 100% 2 Search BELDIH+MINE Search BELDIH+MINE
7 GRADIENT RESISTIVITY PROFILING 241386 1% 100% 2 Search GRADIENT+RESISTIVITY+PROFILING Search GRADIENT+RESISTIVITY+PROFILING
8 VLF ELECTROMAGNETIC 217245 1% 60% 3 Search VLF+ELECTROMAGNETIC Search VLF+ELECTROMAGNETIC
9 VLF 171791 4% 13% 11 Search VLF Search VLF
10 GRADIENT PROFILING 160923 1% 67% 2 Search GRADIENT+PROFILING Search GRADIENT+PROFILING

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 BISWAS, A , SHARMA, SP , (2015) CAN VERY LOW FREQUENCY ELECTROMAGNETIC SURVEY DETECT GRAPHITE DEPOSITS IN THE SUBSURFACE? INITIAL RESULTS FROM DALTANGANJ, JHARKHAND.JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA. VOL. 86. ISSUE 5. P. 530 -534 18 86% 0
2 SHARMA, SP , BARANWAL, VC , (2011) FOCUSING FREQUENCY AND SIGNIFICANCE OF MULTI-FREQUENCY VERY LOW-FREQUENCY ELECTROMAGNETIC MEASUREMENT IN DELINEATING NEAR-SURFACE CONDUCTING STRUCTURES.NEAR SURFACE GEOPHYSICS. VOL. 9. ISSUE 5. P. 435-447 19 86% 1
3 SINGH, A , SHARMA, SP , (2016) INTERPRETATION OF VERY LOW FREQUENCY ELECTROMAGNETIC MEASUREMENTS IN TERMS OF NORMALIZED CURRENT DENSITY OVER VARIABLE TOPOGRAPHY.JOURNAL OF APPLIED GEOPHYSICS. VOL. 133. ISSUE . P. 82 -91 25 46% 0
4 OSKOOI, B , PEDERSEN, LB , (2006) RESOLUTION OF AIRBORNE VLF DATA.JOURNAL OF APPLIED GEOPHYSICS. VOL. 58. ISSUE 2. P. 158 -175 17 81% 10
5 SINGH, A , SHARMA, SP , (2015) FAST IMAGING OF SUBSURFACE CONDUCTORS USING VERY LOW-FREQUENCY ELECTROMAGNETIC DATA.GEOPHYSICAL PROSPECTING. VOL. 63. ISSUE 6. P. 1355 -1370 17 49% 0
6 OSKOOI, B , ABEDI, M , (2015) MAGNETIC AND ELECTROMAGNETIC DATA INTERPRETATION FOR DELINEATING GEOLOGICAL CONTACTS IN THE TOMELILLA AREA, SWEDEN.ARABIAN JOURNAL OF GEOSCIENCES. VOL. 8. ISSUE 6. P. 3971 -3984 14 58% 0
7 AL-TARAZI, E , ABU RAJAB, J , AL-NAQA, A , EL-WAHEIDI, M , (2008) DETECTING LEACHATE PLUMES AND GROUNDWATER POLLUTION AT RUSEIFA MUNICIPAL LANDFILL UTILIZING VLF-EM METHOD.JOURNAL OF APPLIED GEOPHYSICS. VOL. 65. ISSUE 3-4. P. 121-131 12 71% 16
8 JENG, Y , LIN, MJ , CHEN, CS , (2004) A VERY LOW FREQUENCY-ELECTROMAGNETIC STUDY OF THE GEO-ENVIRONMENTAL HAZARDOUS AREAS IN TAIWAN.ENVIRONMENTAL GEOLOGY. VOL. 46. ISSUE 6-7. P. 784-795 12 80% 13
9 SUNDARARAJAN, N , BABU, VR , CHATURVEDI, AK , (2011) DETECTION OF BASEMENT FRACTURES FAVOURABLE TO URANIUM MINERALIZATION FROM VLF-EM SIGNALS.JOURNAL OF GEOPHYSICS AND ENGINEERING. VOL. 8. ISSUE 2. P. 330-340 10 77% 5
10 BISWAS, A , SHARMA, SP , (2016) INTEGRATED GEOPHYSICAL STUDIES TO ELICIT THE SUBSURFACE STRUCTURES ASSOCIATED WITH URANIUM MINERALIZATION AROUND SOUTH PURULIA SHEAR ZONE, INDIA: A REVIEW.ORE GEOLOGY REVIEWS. VOL. 72. ISSUE . P. 1307 -1326 10 56% 1

Classes with closest relation at Level 1


Rank Class id link
1 1834 ELECTRICAL RESISTIVITY TOMOGRAPHY//ELECTRICAL RESISTIVITY IMAGING//JOURNAL OF APPLIED GEOPHYSICS
2 1701 GEOPHYSICS//AIRBORNE ELECTROMAGNETICS//MARINE ELECTROMAGNETICS
3 22173 HORIZONTAL ELECTRIC DIPOLE//VERTICAL ELECTRIC DIPOLE//TRAPPED SURFACE WAVE
4 10829 SELF POTENTIAL//SELF POTENTIAL ANOMALY//SP INTERPRETATION
5 1407 MAGNETOTELLURICS//MAGNETOTELLURIC//GEOMAGNETIC INDUCTION
6 33321 RANKING AND SCALING//RASC//RASC METHOD
7 23048 SINGHBHUM//SINGHBHUM CRATON//MALANJKHAND
8 4428 EULER DECONVOLUTION//GEOPHYSICS//POTENTIAL FIELD
9 12261 SINKHOLE//EVAPORITE KARST//KARST
10 18395 GEOPHYSICS//STATIC CORRECTION//GRM

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