Class information for:
Level 1: NITRATE ISOTOPES//NITRATE SOURCES//NITRATE

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
5520 1612 45.2 58%


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
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
134 3       WATER RESOURCES//GROUND WATER//BIODEGRADATION 65700
122 2             WATER RESOURCES//GROUND WATER//GROUNDWATER 24288
5520 1                   NITRATE ISOTOPES//NITRATE SOURCES//NITRATE 1612

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 NITRATE ISOTOPES authKW 460257 2% 90% 27
2 NITRATE SOURCES authKW 366689 1% 88% 22
3 NITRATE authKW 279881 22% 4% 352
4 NITROGEN ISOTOPES authKW 190806 5% 13% 75
5 NITRATE POLLUTION authKW 170419 2% 27% 33
6 NITROGEN AND OXYGEN ISOTOPES authKW 151527 0% 100% 8
7 NITRATE CONTAMINATION authKW 120686 1% 28% 23
8 GROUNDWATER authKW 89459 13% 2% 212
9 DENITRIFICATION authKW 83075 9% 3% 152
10 OSONA authKW 75763 0% 100% 4

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 Water Resources 21662 31% 0% 504
2 Environmental Sciences 12665 43% 0% 691
3 Geosciences, Multidisciplinary 9507 29% 0% 462
4 Oceanography 3249 10% 0% 168
5 Limnology 2782 5% 0% 83
6 Engineering, Environmental 1922 9% 0% 148
7 Geochemistry & Geophysics 955 7% 0% 119
8 Engineering, Civil 743 7% 0% 105
9 Meteorology & Atmospheric Sciences 443 5% 0% 86
10 Ecology 362 6% 0% 103

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 GRP MINERAL LICADA MEDI AMBIENT 72837 1% 38% 10
2 RECERCA GEOL CARTOG AMBIENTAL GEOCAMB 60609 0% 80% 4
3 IFBM 48698 0% 43% 6
4 AQUAT ENVIRONM WATER OURCE 42615 0% 75% 3
5 GRP HIDROL SUBTERRANIA 42615 0% 75% 3
6 431 38395 1% 17% 12
7 DUTCH GEOL SURVEY 37882 0% 100% 2
8 413 35686 0% 27% 7
9 GRP HIDROGEOQUIM 34091 0% 60% 3
10 UNIT KNOWLEDGE BASED SYST 26299 0% 28% 5

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 GROUND WATER 12357 3% 2% 43
2 JOURNAL OF HYDROLOGY 10088 5% 1% 80
3 JOURNAL OF ENVIRONMENTAL QUALITY 10051 4% 1% 60
4 GLOBAL BIOGEOCHEMICAL CYCLES 8366 2% 1% 31
5 JOURNAL OF CONTAMINANT HYDROLOGY 8326 2% 1% 32
6 ENVIRONMENTAL EARTH SCIENCES 7835 3% 1% 50
7 APPLIED GEOCHEMISTRY 7583 2% 1% 39
8 BIOGEOSCIENCES 6216 2% 1% 33
9 ENVIRONMENTAL GEOLOGY 5268 2% 1% 30
10 HYDROGEOLOGY JOURNAL 5072 1% 1% 22

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 NITRATE ISOTOPES 460257 2% 90% 27 Search NITRATE+ISOTOPES Search NITRATE+ISOTOPES
2 NITRATE SOURCES 366689 1% 88% 22 Search NITRATE+SOURCES Search NITRATE+SOURCES
3 NITRATE 279881 22% 4% 352 Search NITRATE Search NITRATE
4 NITROGEN ISOTOPES 190806 5% 13% 75 Search NITROGEN+ISOTOPES Search NITROGEN+ISOTOPES
5 NITRATE POLLUTION 170419 2% 27% 33 Search NITRATE+POLLUTION Search NITRATE+POLLUTION
6 NITROGEN AND OXYGEN ISOTOPES 151527 0% 100% 8 Search NITROGEN+AND+OXYGEN+ISOTOPES Search NITROGEN+AND+OXYGEN+ISOTOPES
7 NITRATE CONTAMINATION 120686 1% 28% 23 Search NITRATE+CONTAMINATION Search NITRATE+CONTAMINATION
8 GROUNDWATER 89459 13% 2% 212 Search GROUNDWATER Search GROUNDWATER
9 DENITRIFICATION 83075 9% 3% 152 Search DENITRIFICATION Search DENITRIFICATION
10 OSONA 75763 0% 100% 4 Search OSONA Search OSONA

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 XU, SG , KANG, PP , SUN, Y , (2016) A STABLE ISOTOPE APPROACH AND ITS APPLICATION FOR IDENTIFYING NITRATE SOURCE AND TRANSFORMATION PROCESS IN WATER.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH. VOL. 23. ISSUE 2. P. 1133 -1148 91 83% 4
2 XUE, DM , BOTTE, J , DE BAETS, B , ACCOE, F , NESTLER, A , TAYLOR, P , VAN CLEEMPUT, O , BERGLUND, M , BOECKX, P , (2009) PRESENT LIMITATIONS AND FUTURE PROSPECTS OF STABLE ISOTOPE METHODS FOR NITRATE SOURCE IDENTIFICATION IN SURFACE- AND GROUNDWATER.WATER RESEARCH. VOL. 43. ISSUE 5. P. 1159-1170 66 73% 126
3 NESTLER, A , BERGLUND, M , ACCOE, F , DUTA, S , XUE, DM , BOECKX, P , TAYLOR, P , (2011) ISOTOPES FOR IMPROVED MANAGEMENT OF NITRATE POLLUTION IN AQUEOUS RESOURCES: REVIEW OF SURFACE WATER FIELD STUDIES.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH. VOL. 18. ISSUE 4. P. 519 -533 72 72% 28
4 GRANGER, J , WANKEL, SD , (2016) ISOTOPIC OVERPRINTING OF NITRIFICATION ON DENITRIFICATION AS A UBIQUITOUS AND UNIFYING FEATURE OF ENVIRONMENTAL NITROGEN CYCLING.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. VOL. 113. ISSUE 42. P. E6391 -E6400 52 75% 0
5 CASCIOTTI, KL , (2016) NITROGEN AND OXYGEN ISOTOPIC STUDIES OF THE MARINE NITROGEN CYCLE.ANNUAL REVIEW OF MARINE SCIENCE, VOL 8. VOL. 8. ISSUE . P. 379 -407 73 48% 1
6 TSUNOGAI, U , MIYAUCHI, T , OHYAMA, T , KOMATSU, DD , NAKAGAWA, F , OBATA, Y , SATO, K , OHIZUMI, T , (2016) ACCURATE AND PRECISE QUANTIFICATION OF ATMOSPHERIC NITRATE IN STREAMS DRAINING LAND OF VARIOUS USES BY USING TRIPLE OXYGEN ISOTOPES AS TRACERS.BIOGEOSCIENCES. VOL. 13. ISSUE 11. P. 3441 -3459 47 71% 0
7 STOEWER, MM , KNOLLER, K , STUMPP, C , (2015) TRACING FRESHWATER NITRATE SOURCES IN PRE-ALPINE GROUNDWATER CATCHMENTS USING ENVIRONMENTAL TRACERS.JOURNAL OF HYDROLOGY. VOL. 524. ISSUE . P. 753 -767 41 77% 4
8 MATIATOS, I , (2016) NITRATE SOURCE IDENTIFICATION IN GROUNDWATER OF MULTIPLE LAND-USE AREAS BY COMBINING ISOTOPES AND MULTIVARIATE STATISTICAL ANALYSIS: A CASE STUDY OF ASOPOS BASIN (CENTRAL GREECE).SCIENCE OF THE TOTAL ENVIRONMENT. VOL. 541. ISSUE . P. 802 -814 39 68% 3
9 TREIBERGS, LA , GRANGER, J , (2017) ENZYME LEVEL N AND O ISOTOPE EFFECTS OF ASSIMILATORY AND DISSIMILATORY NITRATE REDUCTION.LIMNOLOGY AND OCEANOGRAPHY. VOL. 62. ISSUE 1. P. 272 -288 45 63% 0
10 LI, WB , SONG, YB , XU, HK , CHEN, LY , DAI, WH , DONG, M , (2015) ION-EXCHANGE METHOD IN THE COLLECTION OF NITRATE FROM FRESHWATER ECOSYSTEMS FOR NITROGEN AND OXYGEN ISOTOPE ANALYSIS: A REVIEW.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH. VOL. 22. ISSUE 13. P. 9575 -9588 41 71% 0

Classes with closest relation at Level 1


Rank Class id link
1 19593 PROC OCEANOG CLIMA PROFC//FOR BEREICH MARINE BIOGEOCHEM//SORST PROJECT
2 17187 DELTA N 15//NATURAL N 15 ABUNDANCE//N 15 NATURAL ABUNDANCE
3 15177 DRASTIC//GROUNDWATER VULNERABILITY//AQUIFER VULNERABILITY
4 10063 GROUNDWATER AGE//ENVIRONMENTAL TRACERS//GROUNDWATER DATING
5 16269 HLTH EFFECTS ENVIRONM CONTAMINAT//BREATH NITROUS OXIDE//JAIPUR ZONAL
6 22448 CHALK//QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY//RELIABLE YIELD
7 9888 VEGETATIVE FILTER STRIPS//FILTER STRIPS//RIPARIAN BUFFERS
8 1453 WATER QUALITY INDEX//GROUNDWATER QUALITY//HYDROGEOCHEMISTRY
9 11811 PEAK PHOSPHORUS//NANI//SUBSTANCE FLOW ANALYSIS
10 26491 URBAN GROUNDWATER//EXFILTRATION//SEWER LEAKAGE

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