World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
75
Citations
20598
World Ranking
1276
National Ranking
19

Nadhir Al-Ansari publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Nadhir Al-Ansari sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 282 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 616 publications — 99th percentile

99% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

Nadhir Al-Ansari D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Nadhir Al-Ansari sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 198 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 20 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125 D-Index: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 75 D-Index — 87th percentile

87% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

Nadhir Al-Ansari is affiliated with Luleå University of Technology in Sweden. The scientist's research spans environmental science and engineering, with notable contributions in subfields such as global and planetary change, environmental engineering, water science and technology, civil and structural engineering, and artificial intelligence.

The main research topics covered include hydrology and watershed management studies, hydrological forecasting using AI, flood risk assessment and management, groundwater and watershed analysis, hydrology and drought analysis, climate variability and models, and groundwater and isotope geochemistry.

Recent publications by Nadhir Al-Ansari include the following papers:

  • Influence of Data Splitting on Performance of Machine Learning Models in Prediction of Shear Strength of Soil (2021, Mathematical Problems in Engineering)
  • A review on emerging water contaminants and the application of sustainable removal technologies (2022, Case Studies in Chemical and Environmental Engineering)
  • Flood Detection and Susceptibility Mapping Using Sentinel-1 Remote Sensing Data and a Machine Learning Approach: Hybrid Intelligence of Bagging Ensemble Based on K-Nearest Neighbor Classifier (2020, Remote Sensing)
  • Groundwater level prediction using machine learning models: A comprehensive review (2022, Neurocomputing)
  • Performance Evaluation of Machine Learning Methods for Forest Fire Modeling and Prediction (2020, Symmetry)

Nadhir Al-Ansari has frequently published in the following academic journals and venues:

  • Scientific Reports
  • Engineering
  • Applied Water Science
  • Sustainability
  • Water

Collaboration is a significant part of their work, with frequent co-authors including Jan Laue, Zaher Mundher Yaseen, Varoujan K. Sissakian, Ahmed Elbeltagi, and Mohamed A. Mattar.

Best Publications

  • Influence of Data Splitting on Performance of Machine Learning Models in Prediction of Shear Strength of Soil

    Quang Hung Nguyen;Hai-Bang Ly;Lanh Si Ho;Nadhir Al-Ansari

  • Groundwater level prediction using machine learning models: A comprehensive review

    Unknown

  • Flood Detection and Susceptibility Mapping Using Sentinel-1 Remote Sensing Data and a Machine Learning Approach: Hybrid Intelligence of Bagging Ensemble Based on K-Nearest Neighbor Classifier

    Himan Shahabi;Ataollah Shirzadi;Kayvan Ghaderi;Ebrahim Omidvar

  • Management of Water Resources in Iraq: Perspectives and Prognoses

    Nadhir A. Al-Ansari

  • Shallow Landslide Susceptibility Mapping: A Comparison between Logistic Model Tree, Logistic Regression, Naïve Bayes Tree, Artificial Neural Network, and Support Vector Machine Algorithms

    Viet-Ha Nhu;Ataollah Shirzadi;Himan Shahabi;Sushant K. Singh

  • Irrigation Induced Salinity and Sodicity Hazards on Soil and Groundwater: An Overview of Its Causes, Impacts and Mitigation Strategies

    Aadhityaa Mohanavelu;Sujay Raghavendra Naganna;Nadhir Al-Ansari

  • Performance Evaluation of Machine Learning Methods for Forest Fire Modeling and Prediction

    Binh Thai Pham;Abolfazl Jaafari;Mohammadtaghi Avand;Nadhir Al-Ansari

  • Experimental and Numerical Analysis for Earth-Fill Dam Seepage

    Ahmed Mohammed Sami Al-Janabi;Abdul Halim Ghazali;Yousry Mahmoud Ghazaw;Haitham Abdulmohsin Afan

  • Sand and dust storm events in Iraq

    Varoujan K. Sissakian;Nadhir Al-Ansari;Sven Knutsson

  • Impact of climate change on groundwater hydrology: a comprehensive review and current status of the Indian hydrogeology

    Unknown

  • Crop Water Requirements and Irrigation Schedules for Some Major Crops in Southern Iraq

    Salam Hussein Ewaid;Salwan Ali Abed;Nadhir Al-Ansari

  • Waste foundry sand/MgFe-layered double hydroxides composite material for efficient removal of Congo red dye from aqueous solution.

    Dooraid N. Ahmed;Laith A. Naji;Ayad A. H. Faisal;Nadhir Al-Ansari

  • GIS Based Hybrid Computational Approaches for Flash Flood Susceptibility Assessment

    Binh Thai Pham;Mohammadtaghi Avand;Saeid Janizadeh;Tran Van Phong

  • Impact of COVID-19 lockdown on NO2, O3, PM2.5 and PM10 concentrations and assessing air quality changes in Baghdad, Iraq

    Bassim Mohammed Hashim;Saadi K. Al-Naseri;Ali Al-Maliki;Nadhir Al-Ansari

  • Estimation of SPEI Meteorological Drought Using Machine Learning Algorithms

    Ali Mokhtar;Mohammadnabi Jalali;Hongming He;Nadhir Al-Ansari

  • Development and Evaluation of a Water Quality Index for the Iraqi Rivers

    Salam Hussein Ewaid;Salwan Ali Abed;Nadhir Al-Ansari;Riyadh M. Salih

  • Toward Prudent management of Water Resources in Iraq

    Nadhir Abbas Al-Ansari;Sven Knutsson

  • Seasonal Drought Pattern Changes Due to Climate Variability: Case Study in Afghanistan

    Ishanch Qutbudin;Mohammed Sanusi Shiru;Ahmad Sharafati;Kamal Ahmed

  • Soft Computing Ensemble Models Based on Logistic Regression for Groundwater Potential Mapping

    Phong Tung Nguyen;Duong Hai Ha;Mohammadtaghi Avand;Abolfazl Jaafari

  • Precipitation projection using a CMIP5 GCM ensemble model: a regional investigation of Syria

    Rajab Homsi;Mohammed Sanusi Shiru;Shamsuddin Shahid;Tarmizi Ismail

  • Deep Learning Data-Intelligence Model Based on Adjusted Forecasting Window Scale: Application in Daily Streamflow Simulation

    Minglei Fu;Tingchao Fan;Zi'ang Ding;Sinan Q. Salih

  • Water Footprint of Wheat in Iraq

    Salam Hussein Ewaid;Salwan Ali Abed;Nadhir Al-Ansari

  • Present Conditions and Future Challenges of Water Resources Problems in Iraq

    Nadhir Al-Ansari;Ammar A. Ali;Sven Knutsson

  • Water quality assessment along Tigris River (Iraq) using water quality index (WQI) and GIS software

    Ali Chabuk;Qais Al-Madhlom;Qais Al-Madhlom;Ali Al-Maliki;Nadhir Al-Ansari

Frequent Co-Authors

Zaher Mundher Yaseen
Zaher Mundher Yaseen King Fahd University of Petroleum and Minerals
Shamsuddin Shahid
Shamsuddin Shahid University of Technology Malaysia
Indra Prakash
Indra Prakash Geological Survey of India
Himan Shahabi
Himan Shahabi University of Kurdistan
Ataollah Shirzadi
Ataollah Shirzadi University of Kurdistan
Kwok-wing Chau
Kwok-wing Chau Hong Kong Polytechnic University
Baharin Bin Ahmad
Baharin Bin Ahmad University of Technology Malaysia
Ahmed El-Shafie
Ahmed El-Shafie United Arab Emirates University
Mumtaz Ali
Mumtaz Ali University of Southern Queensland
Marten Geertsema
Marten Geertsema University of Northern British Columbia

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