Class information for:
Level 1: LIGHT POLLUTION//DMSP OLS//NIGHTTIME LIGHTS

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
691 3       COLOR RESEARCH AND APPLICATION//LIGHT POLLUTION//MUNSELL COLOR SCI 8415
3614 2             LIGHT POLLUTION//DMSP OLS//NIGHTTIME LIGHTS 1365
14375 1                   LIGHT POLLUTION//DMSP OLS//NIGHTTIME LIGHTS 805

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 LIGHT POLLUTION authKW 3332117 17% 61% 139
2 DMSP OLS authKW 1745571 7% 84% 53
3 NIGHTTIME LIGHTS authKW 1366661 6% 73% 48
4 NIGHT LIGHTS authKW 634225 2% 90% 18
5 SKY GLOW authKW 472593 2% 93% 13
6 NIGHT SKY BRIGHTNESS authKW 352349 1% 100% 9
7 ARTIFICIAL LIGHT AT NIGHT authKW 315054 2% 62% 13
8 GEOPHYS DATA address 294019 5% 19% 40
9 NIGHTTIME LIGHT IMAGERY authKW 278397 1% 89% 8
10 NPP VIIRS authKW 243928 1% 69% 9

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Remote Sensing 37953 30% 0% 242
2 Imaging Science & Photographic Technology 13671 19% 0% 150
3 Geography, Physical 1576 8% 0% 62
4 Astronomy & Astrophysics 1221 17% 0% 138
5 Environmental Sciences 610 15% 0% 120
6 Ecology 577 11% 0% 85
7 Environmental Studies 293 4% 0% 30
8 Biodiversity Conservation 211 3% 0% 22
9 Optics 200 8% 0% 64
10 Geography 173 2% 0% 19

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 GEOPHYS DATA 294019 5% 19% 40
2 EARTH OBSERVAT GRP 129517 2% 22% 15
3 INVEST DR JOSE MARIA LUIS MORA 78300 0% 100% 2
4 PROGRAMA INTERDISCIPLINARIO ESTUDIOS METROPOLITAN 78300 0% 100% 2
5 ANTWERP EDUC 61165 1% 31% 5
6 HUMAN ENVIRONM SYST SUSTAINABIL 54368 1% 28% 5
7 ACOUST FUNCT ECOL 39150 0% 100% 1
8 ALASKA SEA ICE PROGRAM 39150 0% 100% 1
9 AM OBUKHOVS ATMOSPHER PHYS 39150 0% 100% 1
10 BARBARA HARDY SUSTAINABLE ENVIRONM 39150 0% 100% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 REMOTE SENSING 40704 8% 2% 65
2 GISCIENCE & REMOTE SENSING 16641 2% 3% 13
3 LIGHTING RESEARCH & TECHNOLOGY 16618 2% 3% 14
4 INTERNATIONAL JOURNAL OF REMOTE SENSING 14430 7% 1% 60
5 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 11130 5% 1% 39
6 OBSERVATORY 6441 1% 2% 11
7 REMOTE SENSING OF ENVIRONMENT 6216 4% 1% 32
8 JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 2892 3% 0% 23
9 LIGHT & ENGINEERING 2635 0% 2% 4
10 REMOTE SENSING LETTERS 2607 1% 1% 7

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 LIGHT POLLUTION 3332117 17% 61% 139 Search LIGHT+POLLUTION Search LIGHT+POLLUTION
2 DMSP OLS 1745571 7% 84% 53 Search DMSP+OLS Search DMSP+OLS
3 NIGHTTIME LIGHTS 1366661 6% 73% 48 Search NIGHTTIME+LIGHTS Search NIGHTTIME+LIGHTS
4 NIGHT LIGHTS 634225 2% 90% 18 Search NIGHT+LIGHTS Search NIGHT+LIGHTS
5 SKY GLOW 472593 2% 93% 13 Search SKY+GLOW Search SKY+GLOW
6 NIGHT SKY BRIGHTNESS 352349 1% 100% 9 Search NIGHT+SKY+BRIGHTNESS Search NIGHT+SKY+BRIGHTNESS
7 ARTIFICIAL LIGHT AT NIGHT 315054 2% 62% 13 Search ARTIFICIAL+LIGHT+AT+NIGHT Search ARTIFICIAL+LIGHT+AT+NIGHT
8 NIGHTTIME LIGHT IMAGERY 278397 1% 89% 8 Search NIGHTTIME+LIGHT+IMAGERY Search NIGHTTIME+LIGHT+IMAGERY
9 NPP VIIRS 243928 1% 69% 9 Search NPP+VIIRS Search NPP+VIIRS
10 NIGHTTIME SATELLITE IMAGERY 195749 1% 100% 5 Search NIGHTTIME+SATELLITE+IMAGERY Search NIGHTTIME+SATELLITE+IMAGERY

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 19592 AREAL INTERPOLATION//DASYMETRIC MAPPING//POPULATION MAPPING
2 18770 ROAD LIGHTING//LIGHTING RESEARCH & TECHNOLOGY//STREET LIGHTING
3 38425 THE UPPER REACHES OF MIN RIVER//ALTITUDE CHAMBER TRAINING//ARDECHE GORGE NATURAL RESERVE
4 13900 SCI EXPLORAT DIRECTORATE//RADIOMETRIC CALIBRATION//VICARIOUS CALIBRATION
5 29500 AFRICAN HERMENEUTICS//ARCHAEOL NEAR EASTERN STUDIES//BIBLICAL MONOTHEISM
6 737 REMOTE SENSING//IMAGING SCIENCE & PHOTOGRAPHIC TECHNOLOGY//PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING
7 9836 MELATONIN//CIRCADIAN DISRUPTION//LIGHT AT NIGHT
8 3314 HABITAT INTERNATIONAL//URBAN VILLAGES//URBAN STUDIES
9 22405 BUILDING DAMAGE DETECTION//TEMPORAL INDICES//COLLAPSED BUILDING
10 32846 CIGARETTE BEETLE//LASIODERMA SERRICORNE//CIGARETTE BEETLE LASIODERMA SERRICORNE

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