Class information for:
Level 1: HF RADAR//HIGH FREQUENCY HF RADAR//HIGH FREQUENCY SURFACE WAVE RADAR HFSWR

Basic class information

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
12 4 COMPUTER SCIENCE, THEORY & METHODS//COMPUTER SCIENCE, INFORMATION SYSTEMS//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE 1181119
247 3       IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS//JOURNAL OF GEODESY//IET RADAR SONAR AND NAVIGATION 46948
937 2             IET RADAR SONAR AND NAVIGATION//RADAR SIGNAL PROC//SYNTHETIC APERTURE RADAR SAR 11210
14670 1                   HF RADAR//HIGH FREQUENCY HF RADAR//HIGH FREQUENCY SURFACE WAVE RADAR HFSWR 785

Terms with highest relevance score



rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 HF RADAR authKW 1625745 9% 58% 70
2 HIGH FREQUENCY HF RADAR authKW 760355 3% 76% 25
3 HIGH FREQUENCY SURFACE WAVE RADAR HFSWR authKW 412941 2% 86% 12
4 HIGH FREQUENCY SURFACE WAVE RADAR authKW 256940 1% 80% 8
5 HFSWR authKW 232275 1% 64% 9
6 IONOSPHERIC CLUTTER authKW 206471 1% 86% 6
7 HIGH FREQUENCY RADAR authKW 205588 2% 39% 13
8 RADIO WAVE PROPAGAT address 178833 1% 64% 7
9 CURRENT VELOCITY MEASUREMENT authKW 167279 1% 83% 5
10 HF SURFACE WAVE RADAR authKW 160590 1% 100% 4

Web of Science journal categories



chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Engineering, Ocean 51947 22% 1% 169
2 Oceanography 17656 34% 0% 264
3 Remote Sensing 14251 19% 0% 147
4 Telecommunications 5203 22% 0% 174
5 Imaging Science & Photographic Technology 4756 11% 0% 88
6 Engineering, Electrical & Electronic 4048 43% 0% 335
7 Geochemistry & Geophysics 2580 16% 0% 128
8 Meteorology & Atmospheric Sciences 2542 16% 0% 129
9 Engineering, Civil 1402 12% 0% 96
10 Engineering, Aerospace 206 3% 0% 21

Address terms



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 RADIO WAVE PROPAGAT 178833 1% 64% 7
2 MARINE PHYS REMOTE SENSING 160590 1% 100% 4
3 OCEAN TELEMETRY ENGN TECHNOL 90330 0% 75% 3
4 COASTAL OBSERV DEV 80295 0% 100% 2
5 SEZ RIC VENEZIA 53529 0% 67% 2
6 AGO MARE 40147 0% 100% 1
7 CARIBBEAN REG ASSOC 40147 0% 100% 1
8 CEDAR R IDS DESIGN 40147 0% 100% 1
9 CLIMA GLOBALE MEDITERRANEO F19 40147 0% 100% 1
10 CNRS USTV 40147 0% 100% 1

Journals



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IEEE JOURNAL OF OCEANIC ENGINEERING 120542 10% 4% 79
2 IET RADAR SONAR AND NAVIGATION 38642 4% 3% 34
3 JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY 32927 7% 1% 57
4 IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION 16205 2% 3% 16
5 IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 16059 5% 1% 37
6 RADIO SCIENCE 15872 5% 1% 43
7 JOURNAL OF OPERATIONAL OCEANOGRAPHY 13840 1% 5% 7
8 OCEAN DYNAMICS 13138 2% 2% 19
9 JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 9302 7% 0% 54
10 INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION 5399 2% 1% 15

Author Key Words



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 HF RADAR 1625745 9% 58% 70 Search HF+RADAR Search HF+RADAR
2 HIGH FREQUENCY HF RADAR 760355 3% 76% 25 Search HIGH+FREQUENCY+HF+RADAR Search HIGH+FREQUENCY+HF+RADAR
3 HIGH FREQUENCY SURFACE WAVE RADAR HFSWR 412941 2% 86% 12 Search HIGH+FREQUENCY+SURFACE+WAVE+RADAR+HFSWR Search HIGH+FREQUENCY+SURFACE+WAVE+RADAR+HFSWR
4 HIGH FREQUENCY SURFACE WAVE RADAR 256940 1% 80% 8 Search HIGH+FREQUENCY+SURFACE+WAVE+RADAR Search HIGH+FREQUENCY+SURFACE+WAVE+RADAR
5 HFSWR 232275 1% 64% 9 Search HFSWR Search HFSWR
6 IONOSPHERIC CLUTTER 206471 1% 86% 6 Search IONOSPHERIC+CLUTTER Search IONOSPHERIC+CLUTTER
7 HIGH FREQUENCY RADAR 205588 2% 39% 13 Search HIGH+FREQUENCY+RADAR Search HIGH+FREQUENCY+RADAR
8 CURRENT VELOCITY MEASUREMENT 167279 1% 83% 5 Search CURRENT+VELOCITY+MEASUREMENT Search CURRENT+VELOCITY+MEASUREMENT
9 HF SURFACE WAVE RADAR 160590 1% 100% 4 Search HF+SURFACE+WAVE+RADAR Search HF+SURFACE+WAVE+RADAR
10 WERA 160590 1% 100% 4 Search WERA Search WERA

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.

Classes with closest relation at Level 1



rank cluster_id2 link
1 18582 IONOGRAM//AUTOMATIC SCALING//IONOSONDE
2 10714 MARINE X BAND RADAR//SEA STATE MONITORING//MARINE RADAR
3 37750 FIXED RADIO LINKS//RADAR PERFORMANCE SIGNATURE ANAL//SIGNAL PROC RADIOCOMMUN GRP TSR
4 15129 LOOP CURRENT//YUCATAN CHANNEL//GULF OF MEXICO
5 15307 PROJET MOISE//DATA ASSIMILATION//ENSEMBLE OPTIMAL INTERPOLATION
6 3901 CALIFORNIA CURRENT//CALIFORNIA COOPERATIVE OCEANIC FISHERIES INVESTIGATIONS REPORTS//JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
7 21412 PASSIVE RADAR//PASSIVE BISTATIC RADAR//PASSIVE COHERENT LOCATION
8 15873 EVAPORATION DUCT//ATMOSPHERIC DUCT//SPLIT STEP PARABOLIC EQUATION
9 26701 MONOPULSE ESTIMATION//SPATIAL POLARIZATION CHARACTERISTIC//MONOPULSE RADAR
10 4507 WIND WAVES//WAVE AGE//SWELL

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