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Topic · Environmental Engineering

Groundwater and Watershed Analysis

Groundwater and Watershed Analysis is a research topic within Environmental Engineering. Science Explorer counts 17k research works in it since 1950. 10.2% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the mapping and assessment of groundwater potential zones using a variety of techniques including remote sensing, GIS, machine learning models, morphometric analysis, and hydrological analysis. The studies also explore methods for artificial recharge, multi-criteria decision analysis, and watershed prioritization to support sustainable groundwater management.

  • Groundwater Potential
  • Remote Sensing
  • GIS
  • Machine Learning Models
  • Morphometric Analysis
  • Hydrological Analysis
  • Artificial Recharge
  • Multi-Criteria Decision Analysis
  • Geospatial Technology
  • Watershed Prioritization
Research works
17k
fractional, since 1950
In the world top 10%
1.7k
per year above
Top-10% rate
10.2%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+32%
the tick is no change
Largest producer
India
39% of the 10 largest, 2022-now
Groundwater and Watershed Analysis

Which countries lead Groundwater and Watershed Analysis research?

By volume, India and China publish the most (1.6k and 507 works in 2022-now).

By volume, 2022-now

  1. 1 India 1.6k works
  2. 2 China 507 works
  3. 3 Nigeria 369 works
  4. 4 Indonesia 265 works
  5. 5 Iraq 253 works
  6. 6 United States 245 works
  7. 7 Türkiye 231 works
  8. 8 Iran 213 works
  9. 9 Ethiopia 211 works
  10. 10 Brazil 202 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.

India: 39.4%China: 12.3%Nigeria: 9.0%Indonesia: 6.4%6 others listed: 32.9%39%largest
India1,624 · 39.4%China507 · 12.3%Nigeria369 · 9.0%Indonesia265 · 6.4%6 others listed1,355 · 32.9%

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

Which institutions lead Groundwater and Watershed Analysis research?

By volume in 2022-now, Indian Council of Agricultural Research publishes the most Groundwater and Watershed Analysis research, followed by Chinese Academy of Sciences and University of Baghdad.

By volume, 2022-now

  1. 1 Indian Council of Agricultural ResearchIndia 55 works
  2. 2 Chinese Academy of SciencesChina 52 works
  3. 3 University of BaghdadIraq 36 works
  4. 4 Universitas Gadjah MadaIndonesia 36 works
  5. 5 Arba Minch UniversityEthiopia 34 works
  6. 6 Tribhuvan UniversityNepal 30 works
  7. 7 Indian Institute of Technology RoorkeeIndia 28 works
  8. 8 Centre National de la Recherche ScientifiqueFrance 27 works
  9. 9 King Saud UniversitySaudi Arabia 26 works
  10. 10 Islamic Azad University, TehranIran 26 works

Who are the leading researchers in Groundwater and Watershed Analysis?

The most-cited researchers publishing on Groundwater and Watershed Analysis include Sudhir Kumar, Hung Chak Ho and Anil K. Sood.

  1. 1 Sudhir Kumar United States 295k citations
  2. 2 Hung Chak Ho China 180k citations
  3. 3 Anil K. Sood United States 152k citations
  4. 4 Robert B. Jackson United States 149k citations
  5. 5 Subir Sarkar Germany 143k citations
  6. 6 ‪Damià Barceló Spain 132k citations
  7. 7 Rattan Lal United States 126k citations

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

What are the most cited papers in Groundwater and Watershed Analysis?

The most cited paper in Groundwater and Watershed Analysis is "Quantitative analysis of watershed geomorphology" (Arthur N. Strahler, 1957), with 6,044 citations. Next come "New Global Hydrography Derived From Spaceborne Elevation Data" (2,526) and "Choosing appropriate techniques for quantifying groundwater recharge" (1,747).

Most cited papers
#PaperReleasedCitations
1 Quantitative analysis of watershed geomorphology Arthur N. Strahler · Transactions American Geophysical Union Dec 1957 6,044
2 New Global Hydrography Derived From Spaceborne Elevation Data Bernhard Lehner, Kristine L. Verdin, Andy Jarvis · Eos Open access 4 Mar 2008 2,526
3 Choosing appropriate techniques for quantifying groundwater recharge Bridget R. Scanlon, Richard W. Healy, Peter G. Cook · Hydrogeology Journal 17 Jan 2002 1,747
4 Global Patterns of Groundwater Table Depth Ying Fan, Hong Li, Gonzalo Miguez‐Macho · Science 21 Feb 2013 1,372
5 Global synthesis of groundwater recharge in semiarid and arid regions Bridget R. Scanlon, Kelley E. Keese, Alan L. Flint et al. · Hydrological Processes 25 Sep 2006 1,329
All 100 most cited papers, with filters and sorting

Where is Groundwater and Watershed Analysis research done?

The largest centres of Groundwater and Watershed Analysis research in 2022-now are Beijing (China), New Delhi (India), Tehran (Iran) and Kolkata (India). Among places with at least 20 works in it, it is an unusually large share of all research in Arba Minch.

Largest cities, 2022-now

  1. 1 BeijingChina 156 works
  2. 2 New DelhiIndia 100 works
  3. 3 TehranIran 81 works
  4. 4 KolkataIndia 71 works
  5. 5 BaghdadIraq 69 works
  6. 6 DhakaBangladesh 67 works
  7. 7 ChennaiIndia 63 works
  8. 8 CairoEgypt 54 works
  9. 9 RoorkeeIndia 46 works
  10. 10 Addis AbabaEthiopia 45 works

Where it is the local speciality

  1. Arba MinchET · 33.5 works79×
← less than its size predicts1×more →

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

See Groundwater and Watershed Analysis on the map

Where is the best place to study Groundwater and Watershed Analysis?

Among universities, judged by research, King Saud University, National Institute of Technology Tiruchirappalli and Arba Minch University 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 25.05%fractional works in this field (log) →share of work in the world top 10% →National Institute o…King Saud UniversityChina University of …Arba Minch University
above the meannear itbelow it

One dot per university in the first ten of the table below, at the default weights. The upper left is the interesting corner: small places doing unusually strong work.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1King Saud UniversitySaudi Arabia 75.928.4%4.9×26 +157.7%
2National Institute of Technology TiruchirappalliIndia 69.047.0%9.9×12 +94.6%
3Arba Minch UniversityEthiopia 67.115.5%89.5×34 +386.2%
4China University of GeosciencesChina 64.227.4%7.4×18 +60.2%
5Jamia Millia IslamiaIndia 61.535.2%6.8×10 +52.3%
6Indian Institute of Technology RoorkeeIndia 59.813.8%11.2×28 +83.4%
7King Fahd University of Petroleum and MineralsSaudi Arabia 58.528.8%5.7×11 +609.1%
8Adama Science and Technology UniversityEthiopia 56.826.5%31.1×9 +110.9%
9Addis Ababa UniversityEthiopia 55.415.3%13.9×18 +67.9%
10Abdelmalek Essaâdi UniversityMorocco 53.612.6%20.8×21 +311.1%

Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.

Every institution in Groundwater and Watershed Analysis, country by country

Is Groundwater and Watershed Analysis research growing?

Output in 2022-2025 was 32% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Groundwater and Watershed Analysis.

still counting19801990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Groundwater and Watershed Analysis as a percentage of every work published that year, 0.023% in 2024.

still counting0.010%0.020%0.030%Groundwater and Watershed Analysis0.026% in 202519801990200020102020

Fractional works of Groundwater and Watershed Analysis over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year.

still counting5%10%15%Groundwater and Watershed Analysis10.4% in 2025200020102020

Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.

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.

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