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Researcher · Waikato Regional Council · New Zealand

John Hadfield

John Hadfield publishes mostly in Geochemistry and Petrology, Environmental Engineering and Water Science and Technology, on topics such as Groundwater and Isotope Geochemistry, Groundwater flow and contamination studies and Water Treatment and Disinfection.

OpenAlex
World rank
#4,333,023
of 7,710,434 ranked researchers
Rank in New Zealand
#15,017
of 21,128
Works
15
Citations
395
Citations per work
26.3
h-index
10
i10-index 10Top 53% in Geochemistry and Petrology
John Hadfield

What does John Hadfield research?

John Hadfield's work is mostly in Environmental Science (68%), Earth and Planetary Sciences (24%).

Physical Sciences: 14 works · 92.8% of their workEnvironmental Science: 10 works · 68.4% of their workEnvironmental Engineering: 3 works · 22.0% of their workWater Science and Technology: 3 works · 19.5% of their workPollution: 2 works · 12.2% of their workHealth, Toxicology and Mutagenesis: 1 works · 9.8% of their workEcology: 1 works · 4.9% of their workEarth and Planetary Sciences: 4 works · 24.4% of their workGeochemistry and Petrology: 4 works · 24.4% of their workEverything else: 1 works · 7.2% of their workTHEIR WORKJohn Hadfield15works
Physical Sciences93%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
    1. Environmental Science1068.4%
    2. Earth and Planetary Sciences424.4%
  2. Everything else17.2%
  1. 1Geochemistry and Petrology24% of their works
  2. 2Environmental Engineering22% of their works
  3. 3Water Science and Technology20% of their works
  4. 4Pollution12% of their works
  5. 5Health, Toxicology and Mutagenesis10% of their works
  6. 6Ecology5% of their works

Research topics

Which keywords describe John Hadfield's research?

The keywords of their largest research topics: Climate Change, Groundwater, Isotopes, Groundwater Flow, Transport Modeling, Environmental Impact, Disinfection By-Products and Drinking Water.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most. The words come from the keyword list OpenAlex gives each topic, not from the text of the papers, so a word can appear that none of the papers uses.

All 18 words, with their numbers
  1. Climate Change142 topics
  2. Groundwater101 topic
  3. Isotopes101 topic
  4. Groundwater Flow71 topic
  5. Transport Modeling71 topic
  6. Environmental Impact62 topics
  7. Disinfection By-Products41 topic
  8. Drinking Water41 topic
  9. Hydrological Modeling41 topic
  10. Water Resources41 topic
  11. Antibiotics31 topic
  12. Multivariate Statistical Techniques31 topic
  13. Resistance Genes31 topic
  14. Water Quality Index31 topic
  15. DNA nanotechnology11 topic
  16. Herbicide Resistance11 topic
  17. Self-Assembly11 topic
  18. Weed Control11 topic

Where does John Hadfield work?

John Hadfield's main affiliation in the publication record is Waikato Regional Council, New Zealand.

How many publications and citations does John Hadfield have?

OpenAlex counts 15 works and 395 citations for John Hadfield, an h-index of 10, ranking #4,333,023 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised citation excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

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