World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
35
Citations
9402
World Ranking
9219
National Ranking
3307

H. Annamalai 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 H. Annamalai 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: 86 publications — 7th percentile

7% of scientists in this discipline score the same or lower.

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

H. Annamalai 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 H. Annamalai 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: 35 D-Index — 5th percentile

5% of scientists in this discipline score the same or lower.

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

Overview

H. Annamalai is affiliated with the University of Hawaii at Manoa in the United States. Their research primarily focuses on Earth and Planetary Sciences and Environmental Science, with significant contributions in the subfields of Global and Planetary Change, Atmospheric Science, Oceanography, and Geology.

The scientist's work explores key topics such as Climate variability and models, Oceanographic and Atmospheric Processes, Meteorological Phenomena and Simulations, Tropical and Extratropical Cyclones Research, Marine and coastal ecosystems, Geophysics and Gravity Measurements, and Arctic and Antarctic ice dynamics.

H. Annamalai has published extensively in several prominent scientific journals. Frequent publication venues include:

  • Journal of Climate
  • Geophysical Research Letters
  • Bulletin of the American Meteorological Society
  • Journal of Geophysical Research Oceans
  • Progress In Oceanography

Notable recent papers authored or co-authored by Annamalai include:

  • "A Road Map to IndOOS-2: Better Observations of the Rapidly Warming Indian Ocean" (2020), Bulletin of the American Meteorological Society
  • "Seasonal-to-interannual prediction of North American coastal marine ecosystems: Forecast methods, mechanisms of predictability, and priority developments" (2020), Progress In Oceanography
  • "Seasonal Forecasting Skill of Sea-Level Anomalies in a Multi-Model Prediction Framework" (2021), Journal of Geophysical Research Oceans
  • "Intraseasonal, Seasonal, and Interannual Characteristics of Regional Monsoon Simulations in CESM2" (2020), Journal of Advances in Modeling Earth Systems
  • "The impact of vertical resolution in reducing biases in sea surface temperature in a tropical Pacific Ocean model" (2020), Ocean Modelling

In their collaborative research, H. Annamalai has frequently worked with a group of co-authors, including:

  • Kelvin J Richards
  • Aneesh C. Subramanian
  • Matthew J. Widlansky
  • Antonietta Capotondi
  • P. R. Thompson

Best Publications

  • Climate change and the South Asian summer monsoon

    A. G. Turner;Hariharasubramanian Annamalai

  • Structure and Mechanisms of South Indian Ocean Climate Variability

    Shang-Ping Xie;H. Annamalai;Friedrich A. Schott;Julian P. McCreary

  • The Asian Summer Monsoon: An Intercomparison of CMIP5 vs. CMIP3 Simulations of the Late 20th Century

    K. R. Sperber;H. Annamalai;I. Kang;A. Kitoh

  • Active / break cycles: diagnosis of the intraseasonal variability of the Asian Summer Monsoon

    H. Annamalai;J. M. Slingo

  • Most atolls will be uninhabitable by the mid-21st century because of sea-level rise exacerbating wave-driven flooding.

    Curt D. Storlazzi;Stephen B. Gingerich;Ap van Dongeren;Olivia M. Cheriton

  • The South Asian Summer Monsoon and Its Relationship with ENSO in the IPCC AR4 Simulations

    H. Annamalai;K. Hamilton;K. R. Sperber

  • Impact of Indian Ocean Sea Surface Temperature on Developing El Niño

    H. Annamalai;S. P. Xie;J. P. McCreary;R. Murtugudde

  • Coupled dynamics over the Indian Ocean: spring initiation of the Zonal Mode

    H Annamalai;R Murtugudde;J Potemra;S.P Xie

  • The mean evolution and variability of the Asian summer monsoon: comparison of ECMWF and NCEP/NCAR reanalyses

    H. Annamalai;J. M. Slingo;K. R. Sperber;K. Hodges

  • Southwest Indian Ocean SST variability : Its local effect and remote influence on Asian monsoons

    H. Annamalai;Ping Liu;Shang-Ping Xie

  • Regional Heat Sources and the Active and Break Phases of Boreal Summer Intraseasonal (30–50 Day) Variability*

    H. Annamalai;K. R. Sperber

  • 1997: The El Niño of the Century and the Response of the Indian Summer Monsoon

    J. M. Slingo;H. Annamalai

  • Predictability and the relationship between subseasonal and interannual variability during the Asian summer monsoon

    Kenneth R. Sperber;Julia M. Slingo;H. Annamalai

  • Global Warming Shifts the Monsoon Circulation, Drying South Asia

    H. Annamalai;Jan Hafner;K. P. Sooraj;P. Pillai

  • Coupled model simulations of boreal summer intraseasonal (30–50 day) variability, Part 1: Systematic errors and caution on use of metrics

    K. R. Sperber;H. Annamalai

  • An improved bias correction method of daily rainfall data using a sliding window technique for climate change impact assessment

    P.S. Smitha;B. Narasimhan;K.P. Sudheer;H. Annamalai

  • Response of the South Asian Summer Monsoon to Global Warming: Mean and Synoptic Systems

    Markus Stowasser;H. Annamalai;Jan Hafner

  • Possible Impact of the Indian Ocean SST on the Northern Hemisphere Circulation during El Niño

    H. Annamalai;H. Okajima;M. Watanabe

  • Role of the Indian Ocean in Regional Climate Variability

    H. Annamalai;Raghu Murtugudde

  • Response of the Asian summer monsoon to changes in El Niño properties

    H. Annamalai;P. Liu

Frequent Co-Authors

Kenneth R. Sperber
Kenneth R. Sperber Lawrence Livermore National Laboratory
Julian P. McCreary
Julian P. McCreary University of Hawaii at Manoa
Arun Kumar
Arun Kumar National Oceanic and Atmospheric Administration
Mark A. Merrifield
Mark A. Merrifield University of California, San Diego
Julia Slingo
Julia Slingo University of Bristol
Julie M. Arblaster
Julie M. Arblaster National Center for Atmospheric Research
Bin Wang
Bin Wang University of Hawaii at Manoa
Shang-Ping Xie
Shang-Ping Xie University of California, San Diego
Raghu Murtugudde
Raghu Murtugudde University of Maryland, College Park
Annette Rinke
Annette Rinke Alfred Wegener Institute for Polar and Marine Research

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