Class information for:
Level 1: DMSP OLS//NIGHTTIME LIGHTS//NIGHT LIGHTS

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
16696 641 38.4 54%


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
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
16696 1                   DMSP OLS//NIGHTTIME LIGHTS//NIGHT LIGHTS 641

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 DMSP OLS authKW 1528568 6% 84% 38
2 NIGHTTIME LIGHTS authKW 1524329 6% 80% 40
3 NIGHT LIGHTS authKW 630470 2% 88% 15
4 URBAN EXPANSION authKW 320102 5% 20% 34
5 NIGHTTIME LIGHT IMAGERY authKW 285815 1% 100% 6
6 NIGHTTIME SATELLITE IMAGERY authKW 238179 1% 100% 5
7 GEOPHYS DATA address 228955 5% 15% 32
8 NIGHTTIME LIGHT DATA authKW 170125 1% 71% 5
9 GLOBAL HUMAN SETTLEMENT LAYER authKW 142907 0% 100% 3
10 URBAN GROWTH MODES authKW 142907 0% 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 Remote Sensing 51531 39% 0% 247
2 Imaging Science & Photographic Technology 19922 25% 0% 160
3 Geography, Physical 6813 17% 0% 112
4 Environmental Studies 3092 13% 0% 81
5 Urban Studies 2174 6% 0% 41
6 Environmental Sciences 1693 26% 0% 165
7 Geography 1332 7% 0% 44
8 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 711 5% 0% 29
9 Meteorology & Atmospheric Sciences 399 8% 0% 49
10 Geosciences, Multidisciplinary 293 9% 0% 57

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 GEOPHYS DATA 228955 5% 15% 32
2 EARTH OBSERVAT GRP 131954 2% 21% 13
3 CHINESE AGR POLICY 114446 5% 8% 32
4 URBANIZAT GLOBAL ENVIRONM CHANGE PROJECT 95272 0% 100% 2
5 GEOG SCI NAT OURCES 77207 14% 2% 92
6 ABDRAT INNOVAT GEOSPATIAL TECHNOL 47636 0% 100% 1
7 ADM SURVEYING GEOINFORMAT 47636 0% 100% 1
8 ALASKA SEA ICE PROGRAM 47636 0% 100% 1
9 BARBARA HARDY SUSTAINABLE ENVIRONM 47636 0% 100% 1
10 CLIMATE ECOSYST GRP 47636 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 JOURNAL OF GEOGRAPHICAL SCIENCES 45822 4% 4% 27
2 REMOTE SENSING 37105 8% 2% 50
3 GISCIENCE & REMOTE SENSING 21851 2% 4% 13
4 CHINESE GEOGRAPHICAL SCIENCE 13609 2% 2% 16
5 INTERNATIONAL JOURNAL OF REMOTE SENSING 12061 8% 1% 49
6 REMOTE SENSING OF ENVIRONMENT 9487 5% 1% 35
7 IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 8194 3% 1% 19
8 JOURNAL OF URBAN PLANNING AND DEVELOPMENT 7767 1% 2% 7
9 REMOTE SENSING LETTERS 5828 1% 1% 9
10 LANDSCAPE AND URBAN PLANNING 5170 3% 1% 18

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 DMSP OLS 1528568 6% 84% 38 Search DMSP+OLS Search DMSP+OLS
2 NIGHTTIME LIGHTS 1524329 6% 80% 40 Search NIGHTTIME+LIGHTS Search NIGHTTIME+LIGHTS
3 NIGHT LIGHTS 630470 2% 88% 15 Search NIGHT+LIGHTS Search NIGHT+LIGHTS
4 URBAN EXPANSION 320102 5% 20% 34 Search URBAN+EXPANSION Search URBAN+EXPANSION
5 NIGHTTIME LIGHT IMAGERY 285815 1% 100% 6 Search NIGHTTIME+LIGHT+IMAGERY Search NIGHTTIME+LIGHT+IMAGERY
6 NIGHTTIME SATELLITE IMAGERY 238179 1% 100% 5 Search NIGHTTIME+SATELLITE+IMAGERY Search NIGHTTIME+SATELLITE+IMAGERY
7 NIGHTTIME LIGHT DATA 170125 1% 71% 5 Search NIGHTTIME+LIGHT+DATA Search NIGHTTIME+LIGHT+DATA
8 GLOBAL HUMAN SETTLEMENT LAYER 142907 0% 100% 3 Search GLOBAL+HUMAN+SETTLEMENT+LAYER Search GLOBAL+HUMAN+SETTLEMENT+LAYER
9 URBAN GROWTH MODES 142907 0% 100% 3 Search URBAN+GROWTH+MODES Search URBAN+GROWTH+MODES
10 PANTEX 132317 1% 56% 5 Search PANTEX Search PANTEX

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 HUANG, QX , YANG, X , GAO, B , YANG, Y , ZHAO, YY , (2014) APPLICATION OF DMSP/OLS NIGHTTIME LIGHT IMAGES: A META-ANALYSIS AND A SYSTEMATIC LITERATURE REVIEW.REMOTE SENSING. VOL. 6. ISSUE 8. P. 6844 -6866 59 72% 14
2 MA, L , WU, JS , LI, WF , PENG, J , LIU, H , (2014) EVALUATING SATURATION CORRECTION METHODS FOR DMSP/OLS NIGHTTIME LIGHT DATA: A CASE STUDY FROM CHINA'S CITIES.REMOTE SENSING. VOL. 6. ISSUE 10. P. 9853 -9872 36 90% 5
3 SU, YX , CHEN, XZ , WANG, CY , ZHANG, HO , LIAO, JS , YE, YY , WANG, CJ , (2015) A NEW METHOD FOR EXTRACTING BUILT-UP URBAN AREAS USING DMSP-OLS NIGHTTIME STABLE LIGHTS: A CASE STUDY IN THE PEARL RIVER DELTA, SOUTHERN CHINA.GISCIENCE & REMOTE SENSING. VOL. 52. ISSUE 2. P. 218 -238 33 79% 6
4 TAN, MH , (2016) USE OF AN INSIDE BUFFER METHOD TO EXTRACT THE EXTENT OF URBAN AREAS FROM DMSP/OLS NIGHTTIME LIGHT DATA IN NORTH CHINA.GISCIENCE & REMOTE SENSING. VOL. 53. ISSUE 4. P. 444 -458 31 89% 0
5 SHI, KF , YU, BL , HUANG, YX , HU, YJ , YIN, B , CHEN, ZQ , CHEN, LJ , WU, JP , (2014) EVALUATING THE ABILITY OF NPP-VIIRS NIGHTTIME LIGHT DATA TO ESTIMATE THE GROSS DOMESTIC PRODUCT AND THE ELECTRIC POWER CONSUMPTION OF CHINA AT MULTIPLE SCALES: A COMPARISON WITH DMSP-OLS DATA.REMOTE SENSING. VOL. 6. ISSUE 2. P. 1705 -1724 32 70% 33
6 JING, X , SHAO, X , CAO, CY , FU, XD , YAN, L , (2016) COMPARISON BETWEEN THE SUOMI-NPP DAY-NIGHT BAND AND DMSP-OLS FOR CORRELATING SOCIO-ECONOMIC VARIABLES AT THE PROVINCIAL LEVEL IN CHINA.REMOTE SENSING. VOL. 8. ISSUE 1. P. - 26 96% 1
7 HAO, RF , YU, DY , SUN, Y , CAO, Q , LIU, Y , LIU, YP , (2015) INTEGRATING MULTIPLE SOURCE DATA TO ENHANCE VARIATION AND WEAKEN THE BLOOMING EFFECT OF DMSP-OLS LIGHT.REMOTE SENSING. VOL. 7. ISSUE 2. P. 1422 -1440 33 80% 2
8 ZHUO, L , ZHENG, J , ZHANG, XF , LI, J , LIU, L , (2015) AN IMPROVED METHOD OF NIGHT-TIME LIGHT SATURATION REDUCTION BASED ON EVI.INTERNATIONAL JOURNAL OF REMOTE SENSING. VOL. 36. ISSUE 16. P. 4114 -4130 29 88% 3
9 XU, M , HE, CY , LIU, ZF , DOU, YY , (2016) HOW DID URBAN LAND EXPAND IN CHINA BETWEEN 1992 AND 2015? A MULTI-SCALE LANDSCAPE ANALYSIS.PLOS ONE. VOL. 11. ISSUE 5. P. - 30 73% 2
10 XIAO, PF , WANG, XH , FENG, XZ , ZHANG, XL , YANG, YK , (2014) DETECTING CHINA'S URBAN EXPANSION OVER THE PAST THREE DECADES USING NIGHTTIME LIGHT DATA.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING. VOL. 7. ISSUE 10. P. 4095 -4106 32 76% 2

Classes with closest relation at Level 1


Rank Class id link
1 20440 LIGHT POLLUTION//SKY GLOW//NIGHT SKY BRIGHTNESS
2 17740 AREAL INTERPOLATION//DASYMETRIC MAPPING//GEODEMOGRAPHICS
3 7817 IMPERVIOUS SURFACE//OBJECT BASED IMAGE ANALYSIS//REMOTE SENSING
4 3258 AGENT BASED MODEL//SLEUTH//URBAN GROWTH
5 10219 URBAN SPRAWL//GROWTH MANAGEMENT//SPRAWL
6 21368 LAND CONSOLIDATION//LAND FRAGMENTATION//LAND REALLOCATION
7 23583 INTERNATIONAL CHARTER//BUILDING DAMAGE DETECTION//COLLAPSED BUILDING
8 8868 CHANGE DETECTION//UNSUPERVISED CHANGE DETECTION//MULTITEMPORAL IMAGES
9 14953 CITY SIZE DISTRIBUTION//ZIPFS LAW//HEAD TAIL BREAKS
10 2520 HUKOU//URBAN VILLAGES//CHINA

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