Class information for:
Level 1: EVAPORATION DUCT//ATMOSPHERIC DUCT//SPLIT STEP PARABOLIC EQUATION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
16569 647 19.7 41%


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
9 4 COMPUTER SCIENCE, THEORY & METHODS//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE//COMPUTER SCIENCE, INFORMATION SYSTEMS 1247339
22 3       TELECOMMUNICATIONS//ENGINEERING, ELECTRICAL & ELECTRONIC//IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 113649
1954 2             RAIN ATTENUATION//RADIOWAVE PROPAGATION//INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS AND NETWORKING 5720
16569 1                   EVAPORATION DUCT//ATMOSPHERIC DUCT//SPLIT STEP PARABOLIC EQUATION 647

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 EVAPORATION DUCT authKW 757724 3% 94% 17
2 ATMOSPHERIC DUCT authKW 663664 2% 94% 15
3 SPLIT STEP PARABOLIC EQUATION authKW 377552 1% 100% 8
4 GROUND WAVE PROPAGATION authKW 353940 2% 50% 15
5 REFRACTIVITY FROM CLUTTER authKW 330358 1% 100% 7
6 MIXED PATH PROPAGATION authKW 289062 1% 88% 7
7 ATMOSPHERE DUCT authKW 235970 1% 100% 5
8 REFRACTIVITY ESTIMATION authKW 235970 1% 100% 5
9 PARABOLIC EQUATION METHOD authKW 212358 2% 38% 12
10 ATMOSPHER PROPAGAT BRANCH address 201354 1% 53% 8

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 Telecommunications 28509 55% 0% 358
2 Engineering, Electrical & Electronic 6214 57% 0% 368
3 Remote Sensing 5248 12% 0% 80
4 Meteorology & Atmospheric Sciences 4332 23% 0% 151
5 Geochemistry & Geophysics 1507 14% 0% 90
6 Astronomy & Astrophysics 441 12% 0% 78
7 Engineering, Ocean 128 1% 0% 8
8 Physics, Multidisciplinary 79 7% 0% 44
9 Engineering, Aerospace 75 2% 0% 12
10 Oceanography 60 3% 0% 17

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 ATMOSPHER PROPAGAT BRANCH 201354 1% 53% 8
2 METEOROL OCEANG 151019 1% 80% 4
3 FREQUENCY ENGN 113258 1% 40% 6
4 ANTENNA PL ELE OMAGNET GRP 94388 0% 100% 2
5 RADAR TEAM 69396 1% 29% 5
6 MICROWAVE LINKS 62924 0% 67% 2
7 ALYOTECH TECHNOL 47194 0% 100% 1
8 ANTENNA DEV EMC 47194 0% 100% 1
9 ANTENNA PL ELECT GRP 47194 0% 100% 1
10 ATMOSPHER PROPAGAT BRACH 47194 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 IEEE ANTENNAS AND PROPAGATION MAGAZINE 71965 7% 3% 48
2 RADIO SCIENCE 46114 10% 1% 67
3 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 46088 18% 1% 114
4 JOHNS HOPKINS APL TECHNICAL DIGEST 10387 2% 2% 13
5 IEE PROCEEDINGS-F RADAR AND SIGNAL PROCESSING 6634 2% 1% 11
6 INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION 3718 2% 1% 11
7 RADIOENGINEERING 3616 2% 1% 10
8 JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY 2606 2% 1% 10
9 MAUSAM 2433 1% 1% 5
10 INDIAN JOURNAL OF RADIO & SPACE PHYSICS 2322 1% 1% 5

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 EVAPORATION DUCT 757724 3% 94% 17 Search EVAPORATION+DUCT Search EVAPORATION+DUCT
2 ATMOSPHERIC DUCT 663664 2% 94% 15 Search ATMOSPHERIC+DUCT Search ATMOSPHERIC+DUCT
3 SPLIT STEP PARABOLIC EQUATION 377552 1% 100% 8 Search SPLIT+STEP+PARABOLIC+EQUATION Search SPLIT+STEP+PARABOLIC+EQUATION
4 GROUND WAVE PROPAGATION 353940 2% 50% 15 Search GROUND+WAVE+PROPAGATION Search GROUND+WAVE+PROPAGATION
5 REFRACTIVITY FROM CLUTTER 330358 1% 100% 7 Search REFRACTIVITY+FROM+CLUTTER Search REFRACTIVITY+FROM+CLUTTER
6 MIXED PATH PROPAGATION 289062 1% 88% 7 Search MIXED+PATH+PROPAGATION Search MIXED+PATH+PROPAGATION
7 ATMOSPHERE DUCT 235970 1% 100% 5 Search ATMOSPHERE+DUCT Search ATMOSPHERE+DUCT
8 REFRACTIVITY ESTIMATION 235970 1% 100% 5 Search REFRACTIVITY+ESTIMATION Search REFRACTIVITY+ESTIMATION
9 PARABOLIC EQUATION METHOD 212358 2% 38% 12 Search PARABOLIC+EQUATION+METHOD Search PARABOLIC+EQUATION+METHOD
10 ATMOSPHERIC REFRACTIVITY 201354 1% 53% 8 Search ATMOSPHERIC+REFRACTIVITY Search ATMOSPHERIC+REFRACTIVITY

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 ZHANG, P , BAI, L , WU, ZS , GUO, LX , (2016) APPLYING THE PARABOLIC EQUATION TO TROPOSPHERIC GROUNDWAVE PROPAGATION.IEEE ANTENNAS AND PROPAGATION MAGAZINE. VOL. 58. ISSUE 3. P. 31 -44 61 90% 0
2 KARIMIAN, A , YARDIM, C , GERSTOFT, P , HODGKISS, WS , BARRIOS, AE , (2011) REFRACTIVITY ESTIMATION FROM SEA CLUTTER: AN INVITED REVIEW.RADIO SCIENCE. VOL. 46. ISSUE . P. - 48 66% 16
3 ZHAO, XF , HUANG, SX , (2014) ATMOSPHERIC DUCT ESTIMATION USING RADAR SEA CLUTTER RETURNS BY THE ADJOINT METHOD WITH REGULARIZATION TECHNIQUE.JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY. VOL. 31. ISSUE 6. P. 1250-1262 29 85% 2
4 SIRKOVA, I , MIKHALEV, M , (2006) PARABOLIC WAVE EQUATION METHOD APPLIED TO THE TROPOSPHERIC DUCTING PROPAGATION PROBLEM: A SURVEY.ELECTROMAGNETICS. VOL. 26. ISSUE 2. P. 155 -173 39 78% 6
5 ZHAO, XF , WANG, DX , HUANG, SX , (2014) ATMOSPHERIC DUCT ESTIMATION FROM MULTI-SOURCE RADAR SEA CLUTTER RETURNS: THEORETICAL FRAMEWORK AND PRELIMINARY NUMERICAL RESULTS.CHINESE SCIENCE BULLETIN. VOL. 59. ISSUE 34. P. 4899 -4906 23 100% 0
6 SEVGI, L , (2012) TEACHING EM MODELING AND SIMULATION AS A GRADUATE-LEVEL COURSE.IEEE ANTENNAS AND PROPAGATION MAGAZINE. VOL. 54. ISSUE 5. P. 261 -269 24 89% 0
7 ZHAO, XF , HUANG, SX , DU, HD , (2011) THEORETICAL ANALYSIS AND NUMERICAL EXPERIMENTS OF VARIATIONAL ADJOINT APPROACH FOR REFRACTIVITY ESTIMATION.RADIO SCIENCE. VOL. 46. ISSUE . P. - 25 83% 12
8 APAYDIN, G , SEVGI, L , (2012) CALIBRATION OF THREE-DIMENSIONAL PARABOLIC-EQUATION PROPAGATION MODELS WITH THE RECTANGULAR WAVEGUIDE PROBLEM.IEEE ANTENNAS AND PROPAGATION MAGAZINE. VOL. 54. ISSUE 6. P. 102 -116 22 92% 2
9 ZHAO, XF , HUANG, SX , (2012) ESTIMATION OF ATMOSPHERIC DUCT STRUCTURE USING RADAR SEA CLUTTER.JOURNAL OF THE ATMOSPHERIC SCIENCES. VOL. 69. ISSUE 9. P. 2808-2818 22 88% 10
10 KARIMIAN, A , YARDIM, C , HODGKISS, WS , GERSTOFT, P , BARRIOS, AE , (2012) ESTIMATION OF RADIO REFRACTIVITY USING A MULTIPLE ANGLE CLUTTER MODEL.RADIO SCIENCE. VOL. 47. ISSUE . P. - 18 100% 5

Classes with closest relation at Level 1


Rank Class id link
1 19588 ECE WIN//RADIO RELAY LINK//RADIO REPEATERS
2 4679 INDOOR PROPAGATION//PATH LOSS//RADIO PROPAGATION
3 3960 WAVES IN RANDOM MEDIA//ROUGH SURFACE SCATTERING//ROUGH SURFACE
4 36361 FIXED RADIO LINKS//RADAR PERFORMANCE SIGNATURE ANAL//SIGNAL PROC RADIOCOMMUN GRP TSR
5 15386 RADIO OCCULTATION//GPS RADIO OCCULTATION//WEGENER CLIMATE GLOBAL CHANGE WEGC
6 14526 HF RADAR//HIGH FREQUENCY HF RADAR//HIGH FREQUENCY SURFACE WAVE RADAR HFSWR
7 23854 LYAPUNOV CHARACTERISTIC PARAMETER//MULTICHANNEL SCATTERING//TWO CHANNEL SCATTERING
8 2886 JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA//GEOACOUSTIC INVERSION//MATCHED FIELD PROCESSING
9 28102 AIRBORNE NETWORKS GRP//AGENT MOBILITY//BATTLEFIELD INFORMAT PROC BRANCH
10 7124 PHYSICAL OPTICS//PHYSICAL OPTICS PO//PHYSICAL THEORY OF DIFFRACTION

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