Class information for: |
Basic class information |
| Class id | #P | Avg. number of references |
Database coverage of references |
|---|---|---|---|
| 20440 | 460 | 31.1 | 47% |
Hierarchy of classes |
The table includes all classes above and classes immediately below the current class. |
| Cluster id | Level | Cluster label | #P |
|---|---|---|---|
| 1 | 4 | ECONOMICS//EDUCATION & EDUCATIONAL RESEARCH//PSYCHOL | 3876184 |
| 155 | 3 | URBAN STUDIES//GEOGRAPHY//ENVIRONMENTAL STUDIES | 62328 |
| 2668 | 2 | LIGHT POLLUTION//DMSP OLS//NIGHTTIME LIGHTS | 3427 |
| 20440 | 1 | LIGHT POLLUTION//SKY GLOW//NIGHT SKY BRIGHTNESS | 460 |
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 | LIGHT POLLUTION | authKW | 4163269 | 24% | 56% | 112 |
| 2 | SKY GLOW | authKW | 617843 | 2% | 85% | 11 |
| 3 | NIGHT SKY BRIGHTNESS | authKW | 597422 | 2% | 100% | 9 |
| 4 | ARTIFICIAL LIGHT AT NIGHT | authKW | 358446 | 2% | 60% | 9 |
| 5 | ECOLOGICAL LIGHT POLLUTION | authKW | 276583 | 1% | 83% | 5 |
| 6 | ARTIFICIAL LIGHT POLLUTION | authKW | 265521 | 1% | 100% | 4 |
| 7 | LIGHT LOGGERS | authKW | 265521 | 1% | 100% | 4 |
| 8 | SITE TESTING | authKW | 202215 | 6% | 11% | 29 |
| 9 | PROFESS COLOR SCI ENGN | address | 199141 | 1% | 100% | 3 |
| 10 | SKY QUALITY METER | authKW | 199141 | 1% | 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 | Astronomy & Astrophysics | 5567 | 46% | 0% | 210 |
| 2 | Ecology | 500 | 13% | 0% | 58 |
| 3 | Optics | 360 | 13% | 0% | 59 |
| 4 | Biodiversity Conservation | 206 | 3% | 0% | 16 |
| 5 | Spectroscopy | 155 | 6% | 0% | 26 |
| 6 | Construction & Building Technology | 146 | 3% | 0% | 15 |
| 7 | Ornithology | 143 | 2% | 0% | 9 |
| 8 | Biology | 131 | 5% | 0% | 25 |
| 9 | Evolutionary Biology | 87 | 3% | 0% | 15 |
| 10 | Environmental Sciences | 71 | 8% | 0% | 36 |
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 | PROFESS COLOR SCI ENGN | 199141 | 1% | 100% | 3 |
| 2 | INVEST DR JOSE MARIA LUIS MORA | 132760 | 0% | 100% | 2 |
| 3 | PROGRAMA INTERDISCIPLINARIO ESTUDIOS METROPOLITAN | 132760 | 0% | 100% | 2 |
| 4 | ANTWERP EDUC | 74674 | 1% | 38% | 3 |
| 5 | ACOUST FUNCT ECOL | 66380 | 0% | 100% | 1 |
| 6 | AM OBUKHOVS ATMOSPHER PHYS | 66380 | 0% | 100% | 1 |
| 7 | CIELOBUIO | 66380 | 0% | 100% | 1 |
| 8 | COORDINAMENTO PROTEZ CIELO NOTTURNO | 66380 | 0% | 100% | 1 |
| 9 | GEN ELECT ENGN 420 | 66380 | 0% | 100% | 1 |
| 10 | H BILDANAL | 66380 | 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 | OBSERVATORY | 61673 | 6% | 4% | 26 |
| 2 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 35500 | 12% | 1% | 53 |
| 3 | LIGHTING RESEARCH & TECHNOLOGY | 27007 | 3% | 3% | 13 |
| 4 | QUARTERLY JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY | 21171 | 2% | 3% | 11 |
| 5 | SKY AND TELESCOPE | 8865 | 1% | 3% | 5 |
| 6 | JOURNAL OF THE ROYAL ASTRONOMICAL SOCIETY OF CANADA | 5411 | 1% | 2% | 4 |
| 7 | JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 4243 | 5% | 0% | 21 |
| 8 | JOURNAL OF THE KOREAN ASTRONOMICAL SOCIETY | 4224 | 1% | 2% | 4 |
| 9 | ENVIRONMENTAL REVIEWS | 2839 | 1% | 1% | 3 |
| 10 | LIGHT & ENGINEERING | 2685 | 1% | 1% | 3 |
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 | LIGHT POLLUTION | 4163269 | 24% | 56% | 112 | Search LIGHT+POLLUTION | Search LIGHT+POLLUTION |
| 2 | SKY GLOW | 617843 | 2% | 85% | 11 | Search SKY+GLOW | Search SKY+GLOW |
| 3 | NIGHT SKY BRIGHTNESS | 597422 | 2% | 100% | 9 | Search NIGHT+SKY+BRIGHTNESS | Search NIGHT+SKY+BRIGHTNESS |
| 4 | ARTIFICIAL LIGHT AT NIGHT | 358446 | 2% | 60% | 9 | Search ARTIFICIAL+LIGHT+AT+NIGHT | Search ARTIFICIAL+LIGHT+AT+NIGHT |
| 5 | ECOLOGICAL LIGHT POLLUTION | 276583 | 1% | 83% | 5 | Search ECOLOGICAL+LIGHT+POLLUTION | Search ECOLOGICAL+LIGHT+POLLUTION |
| 6 | ARTIFICIAL LIGHT POLLUTION | 265521 | 1% | 100% | 4 | Search ARTIFICIAL+LIGHT+POLLUTION | Search ARTIFICIAL+LIGHT+POLLUTION |
| 7 | LIGHT LOGGERS | 265521 | 1% | 100% | 4 | Search LIGHT+LOGGERS | Search LIGHT+LOGGERS |
| 8 | SITE TESTING | 202215 | 6% | 11% | 29 | Search SITE+TESTING | Search SITE+TESTING |
| 9 | SKY QUALITY METER | 199141 | 1% | 100% | 3 | Search SKY+QUALITY+METER | Search SKY+QUALITY+METER |
| 10 | ATMOSPHERIC EFFECTS | 160765 | 9% | 6% | 42 | Search ATMOSPHERIC+EFFECTS | Search ATMOSPHERIC+EFFECTS |
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 | KYBA, CCM , TONG, KP , BENNIE, J , BIRRIEL, I , BIRRIEL, JJ , COOL, A , DANIELSEN, A , DAVIES, TW , DEN OUTER, PN , EDWARDS, W , ET AL (2015) WORLDWIDE VARIATIONS IN ARTIFICIAL SKYGLOW.SCIENTIFIC REPORTS. VOL. 5. ISSUE . P. - | 31 | 78% | 9 |
| 2 | BARA, S , (2016) ANTHROPOGENIC DISRUPTION OF THE NIGHT SKY DARKNESS IN URBAN AND RURAL AREAS.ROYAL SOCIETY OPEN SCIENCE. VOL. 3. ISSUE 10. P. - | 24 | 96% | 0 |
| 3 | ZAMORANO, J , MIGUEL, AS , OCANA, F , PILA-DIEZ, B , CASTANO, JG , PASCUAL, S , TAPIA, C , GALLEGO, J , FERNANDEZ, A , NIEVAS, M , (2016) TESTING SKY BRIGHTNESS MODELS AGAINST RADIAL DEPENDENCY: A DENSE TWO DIMENSIONAL SURVEY AROUND THE CITY OF MADRID, SPAIN.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER. VOL. 181. ISSUE . P. 52 -66 | 26 | 79% | 0 |
| 4 | JECHOW, A , HOLKER, F , KOLLATH, Z , GESSNER, MO , KYBA, CCM , (2016) EVALUATING THE SUMMER NIGHT SKY BRIGHTNESS AT A RESEARCH FIELD SITE ON LAKE STECHLIN IN NORTHEASTERN GERMANY.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER. VOL. 181. ISSUE . P. 24 -32 | 19 | 95% | 1 |
| 5 | DURISCOE, DM , (2016) PHOTOMETRIC INDICATORS OF VISUAL NIGHT SKY QUALITY DERIVED FROM ALL-SKY BRIGHTNESS MAPS.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER. VOL. 181. ISSUE . P. 33 -45 | 21 | 84% | 1 |
| 6 | KOCIFAJ, M , POSCH, T , LAMPHAR, HAS , (2015) ON THE RELATION BETWEEN ZENITH SKY BRIGHTNESS AND HORIZONTAL ILLUMINANCE.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. VOL. 446. ISSUE 3. P. 2895 -2901 | 19 | 95% | 2 |
| 7 | CINZANO, P , FALCHI, F , (2014) QUANTIFYING LIGHT POLLUTION.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER. VOL. 139. ISSUE . P. 13 -20 | 20 | 87% | 5 |
| 8 | KOCIFAJ, M , LAMPHAR, HAS , (2016) ANGULAR EMISSION FUNCTION OF A CITY AND SKYGLOW MODELING: A CRITICAL PERSPECTIVE.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC. VOL. 128. ISSUE 970. P. - | 19 | 86% | 0 |
| 9 | KATZ, Y , LEVIN, N , (2016) QUANTIFYING URBAN LIGHT POLLUTION - A COMPARISON BETWEEN FIELD MEASUREMENTS AND EROS-B IMAGERY.REMOTE SENSING OF ENVIRONMENT. VOL. 177. ISSUE . P. 65 -77 | 24 | 55% | 3 |
| 10 | PUN, CSJ , SO, CW , LEUNG, WY , WONG, CF , (2014) CONTRIBUTIONS OF ARTIFICIAL LIGHTING SOURCES ON LIGHT POLLUTION IN HONG KONG MEASURED THROUGH A NIGHT SKY BRIGHTNESS MONITORING NETWORK.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER. VOL. 139. ISSUE . P. 90 -108 | 17 | 89% | 9 |
Classes with closest relation at Level 1 |