World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
44
Citations
8592
World Ranking
6678
National Ranking
289

Ahmad Al Bitar 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 Ahmad Al Bitar 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: 283 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: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 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 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 171 publications — 52nd percentile

52% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Ahmad Al Bitar 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 Ahmad Al Bitar 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: 199 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: 19 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: 99 scientists
30 D-Index 125+

This scientist: 44 D-Index — 32nd percentile

32% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Ahmad Al Bitar is affiliated with the Federal University of Toulouse Midi-Pyrénées in France, focusing on environmental science with a particular emphasis on global and planetary change.

Their recent publications cover a range of topics within environmental science, emphasizing hydrology, remote sensing, and carbon dynamics. Notable papers include:

  • Denitrification in wetlands: A review towards a quantification at global scale, 2020, The Science of The Total Environment
  • How much inundation occurs in the Amazon River basin?, 2022, Remote Sensing of Environment
  • On the Use of Satellite Remote Sensing to Detect Floods and Droughts at Large Scales, 2020, Surveys in Geophysics
  • Trade-Offs Between 1-D and 2-D Regional River Hydrodynamic Models, 2020, Water Resources Research
  • Estimation of daily CO2 fluxes and of the components of the carbon budget for winter wheat by the assimilation of Sentinel 2-like remote sensing data into a crop model, 2020, Geoderma

Al Bitar's research spans several specialized subfields, including:

  • Global and Planetary Change
  • Environmental Engineering
  • Ecology
  • Atmospheric Science
  • Water Science and Technology

Their main topics of work are diverse and reflect an integration of remote sensing technology with environmental and agricultural sciences:

  • Soil Moisture and Remote Sensing
  • Flood Risk Assessment and Management
  • Hydrology and Watershed Management Studies
  • Plant Water Relations and Carbon Dynamics
  • Remote Sensing in Agriculture
  • Precipitation Measurement and Analysis
  • Climate change impacts on agriculture

Al Bitar frequently collaborates with a core group of co-authors, including Éric Ceschia, Taeken Wijmer, Marie Parrens, Ayan Santos Fleischmann, and Rémy Fieuzal. These collaborations reflect a networked approach to multidisciplinary environmental science research.

The most common venues for Al Bitar's research publications illustrate their engagement with remote sensing and hydrology fields. Key journals and conferences include:

  • Remote Sensing
  • Zenodo (CERN European Organization for Nuclear Research)
  • Water Resources Research
  • Journal of Hydrology
  • IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium

Best Publications

  • The SMOS Soil Moisture Retrieval Algorithm

    Y. H. Kerr;P. Waldteufel;P. Richaume;J. P. Wigneron

  • Modelling the Passive Microwave Signature from Land Surfaces: A Review of Recent Results and Application to the L-Band SMOS SMAP Soil Moisture Retrieval Algorithms

    J.-P. Wigneron;T.J. Jackson;P. O'Neill;G. De Lannoy

  • Estimating maize biomass and yield over large areas using high spatial and temporal resolution Sentinel-2 like remote sensing data

    Marjorie Battude;Ahmad Al Bitar;David Morin;Jérôme Cros

  • Overview of SMOS performance in terms of global soil moisture monitoring after six years in operation

    Yann H. Kerr;A. Al-Yaari;N. Rodriguez-Fernandez;M. Parrens

  • Evaluation of SMOS Soil Moisture Products Over Continental U.S. Using the SCAN/SNOTEL Network

    Ahmad Al Bitar;D. Leroux;Y. H. Kerr;O. Merlin

  • Disaggregation of SMOS Soil Moisture in Southeastern Australia

    O. Merlin;C. Rudiger;Ahmad Al Bitar;P. Richaume

  • Global-scale evaluation of two satellite-based passive microwave soil moisture datasets (SMOS and AMSR-E) with respect to Land Data Assimilation System estimates

    A. Al-Yaari;A. Al-Yaari;J.-P. Wigneron;A. Ducharne;Y. Kerr

  • Self-calibrated evaporation-based disaggregation of SMOS soil moisture: An evaluation study at 3 km and 100 m resolution in Catalunya, Spain

    Olivier Merlin;Maria José Escorihuela;Miquel Aran Mayoral;Olivier Hagolle

  • The global SMOS Level 3 daily soil moisture and brightness temperature maps

    Ahmad Al Bitar;Arnaud Mialon;Yann H. Kerr;Yann H. Kerr;François Cabot;François Cabot

  • SMOS-IC: An Alternative SMOS Soil Moisture and Vegetation Optical Depth Product

    Roberto Fernandez-Moran;Amen Al-Yaari;Arnaud Mialon;Ali Mahmoodi

  • SMOS soil moisture assimilation for improved hydrologic simulation in the Murray Darling Basin, Australia

    H. Lievens;S.K. Tomer;A. Al Bitar;G.J.M. De Lannoy

  • DART: Recent Advances in Remote Sensing Data Modeling With Atmosphere, Polarization, and Chlorophyll Fluorescence

    Jean-Philippe Gastellu-Etchegorry;Nicolas Lauret;Tiangang Yin;Lucas Landier

  • Global-Scale Comparison of Passive (SMOS) and Active (ASCAT) Satellite Based Microwave Soil Moisture Retrievals with Soil Moisture Simulations (MERRA-Land)

    A. Al-Yaari;A. Al-Yaari;A. Al-Yaari;J.-P. Wigneron;A. Ducharne;Y.H. Kerr

  • An improved algorithm for disaggregating microwave-derived soil moisture based on red, near-infrared and thermal-infrared data

    Olivier Merlin;Ahmad Al Bitar;Jeffrey P. Walker;Yann Kerr

  • SMOS disaggregated soil moisture product at 1 km resolution: Processor overview and first validation results

    B. Molero;Olivier Merlin;Y. Malbeteau;A. Al Bitar

  • An evaluation of SMOS L-band vegetation optical depth (L-VOD) data sets: high sensitivity of L-VOD to above-ground biomass in Africa

    Nemesio J. Rodríguez-Fernández;Arnaud Mialon;Stephane Mermoz;Alexandre Bouvet

  • Evaluating soil moisture retrievals from ESA's SMOS and NASA's SMAP brightness temperature datasets.

    A. Al-Yaari;J.-P. Wigneron;Y. Kerr;N. Rodriguez-Fernandez

  • Comparison Between SMOS, VUA, ASCAT, and ECMWF Soil Moisture Products Over Four Watersheds in U.S.

    Delphine J. Leroux;Yann H. Kerr;Ahmad Al Bitar;Rajat Bindlish

  • Denitrification in wetlands: A review towards a quantification at global scale

    Columba Martínez-Espinosa;Sabine Sauvage;Ahmad Al Bitar;Pamela A. Green

  • Evaluation of microwave remote sensing for monitoring live fuel moisture content in the Mediterranean region.

    Lei Fan;Lei Fan;J.-P. Wigneron;Qing Xiao;A. Al-Yaari

  • Detection of Irrigated Crops from Sentinel-1 and Sentinel-2 Data to Estimate Seasonal Groundwater Use in South India

    Sylvain Ferrant;Adrien Selles;Adrien Selles;Michel Le Page;Pierre Alexis Herrault

  • SMOS-IC: An alternative SMOS soil moisture and vegetation optical depth product

    Roberto Fernandez-Moran;Roberto Fernandez-Moran;Amen Al-Yaari;Arnaud Mialon;Ali Mahmoodi

Frequent Co-Authors

Yann Kerr
Yann Kerr Federal University of Toulouse Midi-Pyrénées
Arnaud Mialon
Arnaud Mialon Centre national de la recherche scientifique, CNRS
Jean-Pierre Wigneron
Jean-Pierre Wigneron University of Rennes
Philippe Richaume
Philippe Richaume Centre national de la recherche scientifique, CNRS
Amen Al-Yaari
Amen Al-Yaari Sorbonne University
Olivier Merlin
Olivier Merlin Paul Sabatier University
Jeffrey P. Walker
Jeffrey P. Walker Monash University
Jean-Philippe Gastellu-Etchegorry
Jean-Philippe Gastellu-Etchegorry Federal University of Toulouse Midi-Pyrénées
Eric F. Wood
Eric F. Wood Princeton University
Ming Pan
Ming Pan Princeton University

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