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Topic · Geochemistry and Petrology

Groundwater and Isotope Geochemistry

Groundwater and Isotope Geochemistry is a research topic within Geochemistry and Petrology. Science Explorer counts 31k research works in it since 1950. 25.6% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the stable isotopic analysis of groundwater and precipitation, including the use of isotopes to study nitrate contamination, groundwater recharge, climate change impacts, and water quality. It also addresses global depletion of groundwater resources and hydrogeochemical processes influencing groundwater composition.

  • Groundwater
  • Isotopes
  • Stable
  • Precipitation
  • Nitrate
  • Recharge
  • Climate Change
  • Water Quality
  • Hydrogeochemical Processes
  • Global Depletion
Research works
31k
fractional, since 1950
In the world top 10%
8k
per year above
Top-10% rate
25.6%
share of its works in the world top 10%
Growth, 2013–17 → 2018–22
+34%
the tick is no change

Which countries lead Groundwater and Isotope Geochemistry research?

By volume, China and India publish the most (1.3k and 758 works in 2022–2025).

By volume, 2022–2025

  1. 1 China 1.3k works
  2. 2 India 758 works
  3. 3 United States 616 works
  4. 4 France 157 works
  5. 5 Germany 152 works
  6. 6 Nigeria 131 works
  7. 7 Egypt 126 works
  8. 8 Iran 119 works
  9. 9 Italy 116 works
  10. 10 Japan 116 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 36.4%India: 21.0%United States: 17.1%France: 4.4%6 others listed: 21.1%36%largest
China1,312 · 36.4%India758 · 21.0%United States616 · 17.1%France157 · 4.4%6 others listed760 · 21.1%

Shares of the rows listed above, not of the whole node.

Which institutions lead Groundwater and Isotope Geochemistry research?

By volume in 2022–2025, China University of Geosciences publishes the most Groundwater and Isotope Geochemistry research, followed by Chinese Academy of Sciences and China University of Geosciences (Beijing).

By volume, 2022–2025

  1. 1 China University of GeosciencesChina 60 works
  2. 2 Chinese Academy of SciencesChina 59 works
  3. 3 China University of Geosciences (Beijing)China 51 works
  4. 4 China Geological SurveyChina 35 works
  5. 5 Chinese Academy of Geological SciencesChina 35 works
  6. 6 Hohai UniversityChina 33 works
  7. 7 United States Geological SurveyUnited States 32 works
  8. 8 University of Chinese Academy of SciencesChina 27 works
  9. 9 Chang'an UniversityChina 26 works
  10. 10 Centre National de la Recherche ScientifiqueFrance 26 works

Who are the leading researchers in Groundwater and Isotope Geochemistry?

The most-cited researchers publishing on Groundwater and Isotope Geochemistry include Robert B. Jackson, Martin J. Whitehouse and James N. Galloway.

  1. 1 Robert B. Jackson United States 2.4k citations
  2. 2 Martin J. Whitehouse Sweden 2.4k citations
  3. 3 James N. Galloway United States 2.3k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

Where is Groundwater and Isotope Geochemistry research done?

The largest centres of Groundwater and Isotope Geochemistry research in 2022–2025 are Beijing (China), Wuhan (China), Nanjing (China) and Xi'an (China). Among places with at least 20 works in it, it is an unusually large share of all research in Reston and Roorkee.

Largest cities, 2022–2025

  1. 1 Beijing China 410 works
  2. 2 Wuhan China 90 works
  3. 3 Nanjing China 88 works
  4. 4 Xi'an China 58 works
  5. 5 Paris France 54 works
  6. 6 New Delhi India 48 works
  7. 7 Qingdao China 48 works
  8. 8 Cairo Egypt 43 works
  9. 9 Tehran Iran 42 works
  10. 10 Chennai India 39 works

Where it is the local speciality

  1. RestonUS · 32.2 works25×
  2. RoorkeeIN · 31.7 works12×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Groundwater and Isotope Geochemistry than the world average.

See Groundwater and Isotope Geochemistry on the map

Where is the best place to study Groundwater and Isotope Geochemistry?

Among universities, judged by research, Chang'an University, China University of Geosciences (Beijing) and China University of Geosciences score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%20%40%mean 37.73%fractional works in this node (log) →share in the world top 10% →Chang'an University: 26, 43.4%China University of Geosciences (Beijing): 51, 37.0%China University of Geosciences: 60, 35.7%Hohai University: 33, 28.3%Northwest Normal University: 9, 38.9%Indian Institute of Technology Kharagpur: 12, 43.3%Anna University, Chennai: 11, 42.5%National Institute of Technology Patna: 8, 34.7%Inner Mongolia Agricultural University: 10, 30.5%Banaras Hindu University: 10, 43.0%Chang'an UniversityChina University of …China University of …Hohai University
above the meannear itbelow it

One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.

#UniversityScoreTop 10%SpecialisationWorksGrowth
1 Chang'an UniversityChina 78.443.4%12.4×26 +131.1%
2 China University of Geosciences (Beijing)China 77.337.0%31.2×51 +76.1%
3 China University of GeosciencesChina 76.935.7%23.5×60 +43.8%
4 Hohai UniversityChina 63.628.3%10.6×33 +27.6%
5 Northwest Normal UniversityChina 59.138.9%7.0×9 +204.5%
6 Indian Institute of Technology KharagpurIndia 55.843.3%4.3×12 +145.8%
7 Anna University, ChennaiIndia 55.442.5%7.6×11 +23.9%
8 National Institute of Technology PatnaIndia 54.534.7%10.5×8 —
9 Inner Mongolia Agricultural UniversityChina 53.630.5%13.3×10 —
10 Banaras Hindu UniversityIndia 52.043.0%3.9×10 +141.5%

Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.

Is Groundwater and Isotope Geochemistry research growing?

Output in 2018–2022 was 34% higher than in 2013–2017, peaking in 2020. The fastest-growing topics are Groundwater and Isotope Geochemistry.

19801990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.