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

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
8076 1221 40.2 51%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
399 16137 GROUND WATER//HYDROGEOLOGY JOURNAL//SUBMARINE GROUNDWATER DISCHARGE

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 NITRATE SOURCES Author keyword 13 71% 1% 10
2 NITRATE ISOTOPES Author keyword 12 63% 1% 12
3 NITRATE SOURCE Author keyword 11 100% 0% 6
4 NITROGEN AND OXYGEN ISOTOPES Author keyword 11 100% 0% 6
5 NATURAL BACKGROUND LEVEL Author keyword 8 100% 0% 5
6 NITRATE ISOTOPE Author keyword 6 80% 0% 4
7 NATURAL BACKGROUND LEVELS Author keyword 6 71% 0% 5
8 OSONA Author keyword 6 100% 0% 4
9 NITRATE POLLUTION Author keyword 6 20% 2% 25
10 DUAL ISOTOPES Author keyword 5 63% 0% 5

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 NITRATE SOURCES 13 71% 1% 10 Search NITRATE+SOURCES Search NITRATE+SOURCES
2 NITRATE ISOTOPES 12 63% 1% 12 Search NITRATE+ISOTOPES Search NITRATE+ISOTOPES
3 NITRATE SOURCE 11 100% 0% 6 Search NITRATE+SOURCE Search NITRATE+SOURCE
4 NITROGEN AND OXYGEN ISOTOPES 11 100% 0% 6 Search NITROGEN+AND+OXYGEN+ISOTOPES Search NITROGEN+AND+OXYGEN+ISOTOPES
5 NATURAL BACKGROUND LEVEL 8 100% 0% 5 Search NATURAL+BACKGROUND+LEVEL Search NATURAL+BACKGROUND+LEVEL
6 NITRATE ISOTOPE 6 80% 0% 4 Search NITRATE+ISOTOPE Search NITRATE+ISOTOPE
7 NATURAL BACKGROUND LEVELS 6 71% 0% 5 Search NATURAL+BACKGROUND+LEVELS Search NATURAL+BACKGROUND+LEVELS
8 OSONA 6 100% 0% 4 Search OSONA Search OSONA
9 NITRATE POLLUTION 6 20% 2% 25 Search NITRATE+POLLUTION Search NITRATE+POLLUTION
10 DUAL ISOTOPES 5 63% 0% 5 Search DUAL+ISOTOPES Search DUAL+ISOTOPES

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 NATURAL DENITRIFICATION 68 84% 3% 37
2 DENITRIFIER METHOD 29 51% 3% 40
3 NITRATE CONTAMINATION 20 30% 5% 58
4 RIPARIAN ZONE 12 26% 3% 40
5 SANDY AQUIFER 11 18% 5% 58
6 LARGE KARSTIC SPRINGS 8 100% 0% 5
7 SCHIST AQUIFER 7 50% 1% 10
8 NITRATE SOURCES 7 57% 1% 8
9 ATMOSPHERIC NITRATE 7 31% 1% 18
10 CONTAMINATION SOURCES 7 39% 1% 13

Journals

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
Present limitations and future prospects of stable isotope methods for nitrate source identification in surface- and groundwater 2009 85 91 71%
Nitrate attenuation in groundwater: A review of biogeochemical controlling processes 2008 205 150 21%
Isotopes for improved management of nitrate pollution in aqueous resources: review of surface water field studies 2011 18 100 67%
The potential for a suite of isotope and chemical markers to differentiate sources of nitrate contamination: A review 2012 23 132 24%
Using Cl/Br ratios and other indicators to assess potential impacts on groundwater quality from septic systems: A review and examples from principal aquifers in the United States 2011 25 57 30%
Tracing sources and pathways of dissolved nitrate in forest and river ecosystems using high-resolution isotopic techniques: a review 2013 3 68 44%
Groundwater recharge and agricultural contamination 2002 215 93 31%
Ion-exchange method in the collection of nitrate from freshwater ecosystems for nitrogen and oxygen isotope analysis: a review 2015 0 58 72%
Comprehensive isotopic composition of atmospheric nitrate in the Atlantic Ocean boundary layer from 65 degrees S to 79 degrees N 2009 43 97 18%
Evaluation of contamination sources of groundwater NO3- using nitrogen isotope data: A review 2003 13 20 65%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 AQUAT ENVIRONM WATER OURCE 4 75% 0.2% 3
2 RECERCA GEOL CARTOG AMBIENTAL GEOCAMB 4 75% 0.2% 3
3 GRP MINERAL LICADA MEDI AMBIENT 4 36% 0.7% 9
4 CENT WISCONSIN GROUNDWATER 3 100% 0.2% 3
5 GRP HIDROGEOQUIM 3 60% 0.2% 3
6 EARTH ENVIRONM SCI SEES BK21 2 67% 0.2% 2
7 GRP HIDROL SUBTERRANIA 2 67% 0.2% 2
8 413 2 25% 0.5% 6
9 UNIT KNOWLEDGE BASED SYST 2 28% 0.4% 5
10 CHAIR ENVIRONM GEOL 1 50% 0.2% 2

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000244078 HALIFAX MARINE//KOBR KOH TREATMENT//IFBM
2 0.0000168701 GROUNDWATER AGE//ENVIRONMENTAL TRACERS//WATER OURCES DRINKING WATER
3 0.0000167892 DRASTIC//GROUNDWATER VULNERABILITY//DRASTIC MODEL
4 0.0000140645 NANI//THEORIE MUTAT URBAINES//UMR SISYPHE 7619
5 0.0000123582 URBAN GROUNDWATER//SEWER LEAKAGE//MARKER SPECIES
6 0.0000121245 CHALK//CHALK GROUNDWATER//DUAL PERMEABILITY MODELS
7 0.0000117480 NLEAP//SOIL PLANT NUTRIENT UNIT//SPNRU
8 0.0000116987 GROUNDWATER QUALITY//HYDROCHEMISTRY//HYDROGEOCHEMISTRY
9 0.0000113158 FOR UNGSBEREICH MARINE BIOGEOCHEM//FOR BEREICH MARINE BIOGEOCHEM//PROC OCEANOG CLIMA PROFC
10 0.0000109477 VEGETATIVE FILTER STRIPS//GRASS FILTERS//FILTER STRIPS