S. Twomey

13.9k total citations · 5 hit papers
102 papers, 9.8k citations indexed

About

S. Twomey is a scholar working on Global and Planetary Change, Atmospheric Science and Environmental Engineering. According to data from OpenAlex, S. Twomey has authored 102 papers receiving a total of 9.8k indexed citations (citations by other indexed papers that have themselves been cited), including 53 papers in Global and Planetary Change, 48 papers in Atmospheric Science and 13 papers in Environmental Engineering. Recurrent topics in S. Twomey's work include Atmospheric aerosols and clouds (49 papers), Atmospheric chemistry and aerosols (39 papers) and Atmospheric Ozone and Climate (17 papers). S. Twomey is often cited by papers focused on Atmospheric aerosols and clouds (49 papers), Atmospheric chemistry and aerosols (39 papers) and Atmospheric Ozone and Climate (17 papers). S. Twomey collaborates with scholars based in United States, Australia and Armenia. S. Twomey's co-authors include Tim Wolfe, Steven Platnick, J. Warner, H. B. Howell, Tomasz Wojciechowski, Craig F. Bohren, P. Squires, J. L. Mergenthaler, H. Jacobowitz and Peter Pilewskie and has published in prestigious journals such as Nature, Science and The Journal of Chemical Physics.

In The Last Decade

S. Twomey

98 papers receiving 8.8k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

The Influence of Pollution on the Shortwave Albedo of Clouds

1977 2.5k citations S. Twomey Journal of the Atmospheric Sciences profile →
Pollution and the planetary albedo

1974 1.5k citations S. Twomey profile →
On the Numerical Solution of Fredholm Integral Equations of the First Kind by the Inversion of the Linear System Produced by Quadrature

1963 689 citations S. Twomey profile →
Aerosols, clouds and radiation

1991 516 citations S. Twomey profile →
The nuclei of natural cloud formation part II: The supersaturation in natural clouds and the variation of cloud droplet concentration

1959 501 citations S. Twomey profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
S. Twomey United States	34	7.9k	7.8k	1.1k	1.0k	570	102	9.8k
James D. Klett United States	22	6.7k 0.9×	6.4k 0.8×	541 0.5×	925 0.9×	587 1.0×	37	8.9k
Zev Levin Israel	39	4.6k 0.6×	4.5k 0.6×	709 0.7×	1.1k 1.1×	339 0.6×	126	6.2k
R. D. Cess United States	47	9.0k 1.1×	8.7k 1.1×	828 0.8×	256 0.3×	599 1.1×	188	12.6k
James A. Coakley United States	40	7.0k 0.9×	6.7k 0.9×	946 0.9×	433 0.4×	454 0.8×	106	8.8k
H. R. Pruppacher United States	42	7.9k 1.0×	6.5k 0.8×	666 0.6×	1.5k 1.4×	1.0k 1.8×	101	11.4k
D. Stauffer United States	34	6.0k 0.8×	4.1k 0.5×	792 0.7×	173 0.2×	1.2k 2.1×	112	8.6k
W. J. Wiscombe United States	44	9.2k 1.2×	9.1k 1.2×	384 0.4×	543 0.5×	983 1.7×	146	13.1k
C. W. Fairall United States	66	12.8k 1.6×	10.5k 1.4×	402 0.4×	1.8k 1.7×	1.6k 2.7×	272	17.1k
Kenneth Sassen United States	46	8.4k 1.1×	8.6k 1.1×	189 0.2×	761 0.7×	262 0.5×	151	9.4k
Yongxiang Hu United States	57	10.4k 1.3×	11.8k 1.5×	465 0.4×	785 0.8×	958 1.7×	324	13.8k

Countries citing papers authored by S. Twomey

Since Specialization

Citations

This map shows the geographic impact of S. Twomey's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by S. Twomey with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites S. Twomey more than expected).

Fields of papers citing papers by S. Twomey

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S. Twomey. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by S. Twomey. The network helps show where S. Twomey may publish in the future.

Co-authorship network of co-authors of S. Twomey

This figure shows the co-authorship network connecting the top 25 collaborators of S. Twomey. A scholar is included among the top collaborators of S. Twomey based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with S. Twomey. S. Twomey is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

1.

Twomey, S., et al.. (1989). Remote sensing of cloud parameters from spectral reflectance in the near-infrared. 62(3). 172–179. 62 indexed citations

2.

Twomey, S., Craig F. Bohren, & J. L. Mergenthaler. (1986). Reflectance and albedo differences between wet and dry surfaces. Applied Optics. 25(3). 431–431. 139 indexed citations

3.

Twomey, S., et al.. (1984). An assessment of the impact of pollution on global cloud albedo. Tellus B. 36(5). 356–356. 446 indexed citations

4.

Twomey, S., et al.. (1982). Spectral Reflectance of Clouds in the Near-Infrared: Comparison of Measurements and Calculations. Journal of the Meteorological Society of Japan Ser II. 60(1). 583–592. 82 indexed citations

5.

Twomey, S., et al.. (1981). Multifilter Technique for Examination of the Size Distribution of the Natural Aerosol in the Submicrometer Size Range. Environmental Science & Technology. 15(2). 177–184. 14 indexed citations

6.

Twomey, S.. (1980). Cloud nucleation in the atmosphere and influence of nucleus concentration levels in atmospheric physics. The Journal of Physical Chemistry. 84(12). 1459–1463. 21 indexed citations

7.

Twomey, S., et al.. (1978). Results of Five Years' Observations of Cloud Nucleus Concentration at Robertson, New South Wales. Journal of the Atmospheric Sciences. 35(4). 650–656. 16 indexed citations

8.

Twomey, S., et al.. (1977). An Extension to the Chahine Method of Inverting the Radiative Transfer Equation. Journal of the Atmospheric Sciences. 34(7). 1085–1090. 66 indexed citations

9.

Twomey, S.. (1977). The Role of Aerosols in Influencing Radiative Properties of Clouds. 172.

10.

Twomey, S.. (1970). On the Possible Absorption of Visible Light by Clouds. Journal of the Atmospheric Sciences. 27(3). 514–515. 3 indexed citations

11.

Twomey, S.. (1969). Comments on “Estimating the Vertical Ozone Distribution”. Journal of the Atmospheric Sciences. 26(5). 1154–1154. 3 indexed citations

12.

Twomey, S. & H. B. Howell. (1967). Some Aspects of the Optical Estimation of Microstructure in Fog and Cloud. Applied Optics. 6(12). 2125–2125. 64 indexed citations

13.

Twomey, S., H. Jacobowitz, & H. B. Howell. (1966). Matrix Methods for Multiple-Scattering Problems. Journal of the Atmospheric Sciences. 23(3). 289–298. 106 indexed citations

14.

Twomey, S.. (1965). The application of numerical filtering to the solution of integral equations encountered in indirect sensing measurements. Journal of the Franklin Institute. 279(2). 95–109. 275 indexed citations

15.

Twomey, S.. (1963). Table of the planck function for terrestrial temperatures. Infrared Physics. 3(1). 9–26. 3 indexed citations

16.

Twomey, S.. (1963). The determination of aerosol size distributions from diffusional decay measurements. Journal of the Franklin Institute. 275(2). 121–138. 17 indexed citations

17.

Smith, E. J., et al.. (1956). Measurements of Natural Freezing Nuclei at High Altitudes. Nature. 177(4498). 82–83. 8 indexed citations

18.

Warner, J. & S. Twomey. (1956). The Use of Silver Iodide for Seeding Individual Clouds. Tellus A Dynamic Meteorology and Oceanography. 8(4). 453–459. 3 indexed citations

19.

Twomey, S.. (1955). THE DISTRIBUTION OF SEA-SALT NUCLEI IN AIR OVER LAND. Journal of Meteorology. 12(1). 81–86. 39 indexed citations

20.

Twomey, S.. (1953). The Identification of Individual Hygroscopic Particles in the Atmosphere by a Phase-Transition Method. Journal of Applied Physics. 24(9). 1099–1102. 48 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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