World's Best Scientists 2026 revealed!
Clemens Simmer

Clemens Simmer

D-Index & Metrics

Environmental Sciences

D-Index
56
Citations
10052
World Ranking
3694
National Ranking
252

Clemens Simmer 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 Clemens Simmer 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: 347 publications — 90th percentile

90% of scientists in this discipline score the same or lower.

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

Clemens Simmer 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 Clemens Simmer 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: 56 D-Index — 63rd percentile

63% of scientists in this discipline score the same or lower.

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

Overview

Clemens Simmer is affiliated with the University of Bonn in Germany. Their research primarily focuses on Earth and Planetary Sciences, with a significant number of publications in Environmental Science as well. The main subfields covered by their work include Atmospheric Science, Global and Planetary Change, Environmental Engineering, Oceanography, and Aerospace Engineering.

The scientific topics addressed by Clemens Simmer span several areas, including:

  • Meteorological Phenomena and Simulations
  • Soil Moisture and Remote Sensing
  • Climate Variability and Models
  • Precipitation Measurement and Analysis
  • Cryospheric Studies and Observations
  • Atmospheric Aerosols and Clouds
  • Climate Change and Permafrost

Their recent publications demonstrate a focus on atmospheric and precipitation processes. Notable papers include:

  • "The Added Value of Large-eddy and Storm-resolving Models for Simulating Clouds and Precipitation," 2020, Journal of the Meteorological Society of Japan Ser II
  • "Overview: Fusion of radar polarimetry and numerical atmospheric modelling towards an improved understanding of cloud and precipitation processes," 2021, Atmospheric Chemistry and Physics
  • "Multimodel Ensemble Forecasts of Precipitation Based on an Object-Based Diagnostic Evaluation," 2020, Monthly Weather Review
  • "Comparison between precipitation estimates of ground-based weather radar composites and GPM's DPR rainfall product over Germany," 2020, Meteorologische Zeitschrift
  • "Assessing the benefits of specific attenuation for quantitative precipitation estimation with a C-band radar network," 2021, Journal of Hydrometeorology

Frequent publication venues for Clemens Simmer include:

  • Meteorologische Zeitschrift
  • Atmospheric Chemistry and Physics
  • Monthly Weather Review
  • Journal of Hydrometeorology
  • Journal of the Meteorological Society of Japan Ser II

The scientist collaborates regularly with a group of coauthors who contribute to related fields and topics. Frequent coauthors include Silke Trömel, Shaoning Lv, Jun Wen, Yijian Zeng, and Prabhakar Shrestha. Collaboration counts suggest ongoing multi-author research projects and team efforts in atmospheric sciences and related disciplines.

Best Publications

  • A network suitable microwave radiometer for operational monitoring of the cloudy atmosphere

    Thomas Rose;Susanne Crewell;Ulrich Löhnert;Clemens Simmer

  • The Convective and Orographically Induced Precipitation Study. A Research and Development Project of the World Weather Research Program for Improving Quantitative Precipitation Forecasting in Low-Mountain Regions

    Volker Wulfmeyer;Andreas Behrendt;Hans-Stefan Bauer;Christoph Kottmeier

  • PARSIVEL Snow Observations: A Critical Assessment

    Alessandro Battaglia;Elke Rustemeier;Ali Tokay;Ulrich Blahak

  • ISCCP Cloud Algorithm Intercomparison

    W. B. Rossow;F. Mosher;E. Kinsella;A. Arking

  • Changing structure of European precipitation: Longer wet periods leading to more abundant rainfalls

    Olga Zolina;Olga Zolina;Clemens Simmer;Sergey K. Gulev;Stefan Kollet

  • Large-eddy simulations over Germany using ICON: a comprehensive evaluation

    Rieke Heinze;Rieke Heinze;Anurag Dipankar;Cintia Carbajal Henken;Christopher Moseley

  • Proof of concept of regional scale hydrologic simulations at hydrologic resolution utilizing massively parallel computer resources

    Stefan J. Kollet;Reed M. Maxwell;Carol S. Woodward;Steve Smith

  • Changes in the Duration of European Wet and Dry Spells during the Last 60 Years

    Olga Zolina;Clemens Simmer;Konstantin Belyaev;Sergey K. Gulev

  • Potential Utilization of Specific Attenuation for Rainfall Estimation, Mitigation of Partial Beam Blockage, and Radar Networking

    Alexander Ryzhkov;Malte Diederich;Pengfei Zhang;Clemens Simmer

  • The Added Value of Large-Eddy and Storm-Resolving Models for Simulating Clouds and Precipitation

    Bjorn Stevens;Claudia Acquistapace;Akio Hansen;Rieke Heinze

  • Quasi-Vertical Profiles—A New Way to Look at Polarimetric Radar Data

    Alexander Ryzhkov;Pengfei Zhang;Heather Reeves;Matthew Kumjian

  • Remote sensing of cloud liquid water

    U. Karstens;C. Simmer;E. Ruprecht

  • The Influence of Hydrologic Modeling on the Predicted Local Weather: Two-Way Coupling of a Mesoscale Weather Prediction Model and a Land Surface Hydrologic Model

    G. Seuffert;P. Gross;C. Simmer;E. F. Wood

  • Analysis of extreme precipitation over Europe from different reanalyses: a comparative assessment

    Olga Zolina;Alice Kapala;Clemens Simmer;Sergey K. Gulev

  • Improving Estimates of Heavy and Extreme Precipitation Using Daily Records from European Rain Gauges

    Olga Zolina;Clemens Simmer;Konstantin Belyaev;Alice Kapala

  • Seasonally dependent changes of precipitation extremes over Germany since 1950 from a very dense observational network

    Olga Zolina;Olga Zolina;Clemens Simmer;Alice Kapala;Susanne Bachner

  • An Integrated Approach toward Retrieving Physically Consistent Profiles of Temperature, Humidity, and Cloud Liquid Water

    Ulrich Löhnert;Susanne Crewell;Clemens Simmer

  • Radiation physics and modelling for off-nadir satellite sensing of non-Lambertian surfaces

    S A W Gerstl;C Simmer

  • JOYCE: Jülich Observatory for cloud evolution

    U. Löhnert;J. H. Schween;C. Acquistapace;K. Ebell

  • Land-atmosphere coupling in EURO-CORDEX evaluation experiments

    Sebastian Knist;Klaus Goergen;Erasmo Buonomo;Ole Bøssing Christensen

Frequent Co-Authors

Stefan Kollet
Stefan Kollet Forschungszentrum Jülich
Susanne Crewell
Susanne Crewell University of Cologne
Alexander V. Ryzhkov
Alexander V. Ryzhkov University of Oklahoma
Ulrich Löhnert
Ulrich Löhnert University of Cologne
Harry Vereecken
Harry Vereecken Forschungszentrum Jülich
Harrie-Jan Hendricks Franssen
Harrie-Jan Hendricks Franssen Forschungszentrum Jülich
Sergey K. Gulev
Sergey K. Gulev Institute of Oceanology. PP Shirshov Russian Academy of Sciences
Sabine Attinger
Sabine Attinger Helmholtz Centre for Environmental Research
Volker Wulfmeyer
Volker Wulfmeyer University of Hohenheim
Harald Kunstmann
Harald Kunstmann Karlsruhe Institute of Technology

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