D. O'Hara

1.1k total citations · 1 hit paper
17 papers, 925 citations indexed

About

D. O'Hara is a scholar working on Atmospheric Science, Global and Planetary Change and Spectroscopy. According to data from OpenAlex, D. O'Hara has authored 17 papers receiving a total of 925 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Atmospheric Science, 10 papers in Global and Planetary Change and 3 papers in Spectroscopy. Recurrent topics in D. O'Hara's work include Atmospheric Ozone and Climate (15 papers), Atmospheric chemistry and aerosols (14 papers) and Atmospheric and Environmental Gas Dynamics (10 papers). D. O'Hara is often cited by papers focused on Atmospheric Ozone and Climate (15 papers), Atmospheric chemistry and aerosols (14 papers) and Atmospheric and Environmental Gas Dynamics (10 papers). D. O'Hara collaborates with scholars based in United States, Japan and Germany. D. O'Hara's co-authors include H. B. Singh, D. Herlth, J. D. Bradshaw, D. R. Blake, Paul J. Crutzen, Maria Kanakidou, J. F. Vedder, Edward C. Y. Inn, S. T. Sandholm and G. L. Gregory and has published in prestigious journals such as Science, Journal of Geophysical Research Atmospheres and Geophysical Research Letters.

In The Last Decade

D. O'Hara

17 papers receiving 712 citations

Hit 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.

Acetone in the atmosphere: Distribution, sources, and sinks

1994 324 citations H. B. Singh, D. O'Hara et al. Journal of Geophysical Research Atmospheres profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
D. O'Hara United States	14	825	522	142	109	76	17	925
C. S. Eubank United States	13	971 1.2×	657 1.3×	150 1.1×	89 0.8×	101 1.3×	19	1.1k
Tyrrel W. Smith United States	8	723 0.9×	371 0.7×	210 1.5×	56 0.5×	60 0.8×	10	772
B. R. Greally United Kingdom	14	829 1.0×	684 1.3×	177 1.2×	80 0.7×	65 0.9×	24	1.1k
F. J. Johnen Germany	12	657 0.8×	363 0.7×	185 1.3×	75 0.7×	82 1.1×	19	755
D. Herlth United States	11	797 1.0×	503 1.0×	152 1.1×	97 0.9×	84 1.1×	11	871
A. Khedim Germany	15	646 0.8×	505 1.0×	78 0.5×	85 0.8×	30 0.4×	28	731
Uwe Parchatka Germany	20	899 1.1×	614 1.2×	170 1.2×	313 2.9×	129 1.7×	34	1.1k
Peter J. Maroulis United States	12	470 0.6×	304 0.6×	85 0.6×	35 0.3×	92 1.2×	14	625
J. Heland Germany	14	877 1.1×	617 1.2×	278 2.0×	118 1.1×	146 1.9×	28	1.1k

Countries citing papers authored by D. O'Hara

Since Specialization

Citations

This map shows the geographic impact of D. O'Hara'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 D. O'Hara with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites D. O'Hara more than expected).

Fields of papers citing papers by D. O'Hara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. O'Hara. 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 D. O'Hara. The network helps show where D. O'Hara may publish in the future.

Co-authorship network of co-authors of D. O'Hara

This figure shows the co-authorship network connecting the top 25 collaborators of D. O'Hara. A scholar is included among the top collaborators of D. O'Hara 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 D. O'Hara. D. O'Hara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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17 of 17 papers shown

Talbot, R. W., J. D. Bradshaw, S. T. Sandholm, et al.. (1994). Summertime distribution and relations of reactive odd nitrogen species and NO_y in the troposphere over Canada. Journal of Geophysical Research Atmospheres. 99(D1). 1863–1885. 33 indexed citations

Singh, H. B., D. O'Hara, D. Herlth, et al.. (1994). Acetone in the atmosphere: Distribution, sources, and sinks. Journal of Geophysical Research Atmospheres. 99(D1). 1805–1819. 324 indexed citations breakdown →

Singh, H. B., D. Herlth, D. O'Hara, et al.. (1994). Summertime distribution of PAN and other reactive nitrogen species in the northern high‐latitude atmosphere of eastern Canada. Journal of Geophysical Research Atmospheres. 99(D1). 1821–1835. 66 indexed citations

Sandholm, S. T., J. D. Bradshaw, R. W. Talbot, et al.. (1994). Summertime partitioning and budget of NO_y compounds in the troposphere over Alaska and Canada: ABLE 3B. Journal of Geophysical Research Atmospheres. 99(D1). 1837–1861. 67 indexed citations

Singh, H. B., D. Herlth, D. O'Hara, et al.. (1992). Relationship of peroxyacetyl nitrate to active and total odd nitrogen at northern high latitudes: Influence of reservoir species on NO_x and O₃. Journal of Geophysical Research Atmospheres. 97(D15). 16523–16530. 61 indexed citations

Singh, H. B., D. O'Hara, D. Herlth, et al.. (1992). Atmospheric measurements of peroxyacetyl nitrate and other organic nitrates at high latitudes: Possible sources and sinks. Journal of Geophysical Research Atmospheres. 97(D15). 16511–16522. 81 indexed citations

Singh, H. B., D. Herlth, D. O'Hara, et al.. (1990). Atmospheric peroxyacetyl nitrate measurements over the Brazilian Amazon Basin during the wet season: Relationships with nitrogen oxides and ozone. Journal of Geophysical Research Atmospheres. 95(D10). 16945–16954. 28 indexed citations

Singh, H. B., E. P. Condon, J. F. Vedder, et al.. (1990). Peroxyacetyl nitrate measurements during CITE 2: Atmospheric distribution and precursor relationships. Journal of Geophysical Research Atmospheres. 95(D7). 10163–10178. 62 indexed citations

O'Hara, D. & H. B. Singh. (1988). Sensitive gas chromatographic detection of acetaldehyde and acetone using a reduction gas detector. Atmospheric Environment (1967). 22(11). 2613–2615. 16 indexed citations

10.

Oberbeck, V. R., D. O'Hara, & G. C. Carle. (1987). Concepts for collection of aerosols in Titan's atmosphere. Journal of Geophysical Research Atmospheres. 92(B4). E717–22. 2 indexed citations

11.

Pollock, G. E., D. O'Hara, & O. L. Hollis. (1984). Gas Chromatographic Separation of Nitrogen, Oxygen, Argon, and Carbon Monoxide Using Custom-Made Porous Polymers from High Purity Divinylbenzene. Journal of Chromatographic Science. 22(8). 343–347. 13 indexed citations

12.

Inn, Edward C. Y., J. F. Vedder, E. P. Condon, & D. O'Hara. (1982). Precursor gases of aerosols in the Mount St. Helens eruption plumes at stratospheric altitudes. NASA Technical Reports Server (NASA). 47. 1 indexed citations

13.

Inn, Edward C. Y., J. F. Vedder, & D. O'Hara. (1981). Measurement of stratospheric sulfur constituents. Geophysical Research Letters. 8(1). 5–8. 43 indexed citations

14.

Vedder, J. F., et al.. (1981). Measurements of CF₂Cl₂, CFCl₃, and N₂O in the lower stratosphere between 2° S and 73° N latitude. Journal of Geophysical Research Atmospheres. 86(C8). 7363–7368. 23 indexed citations

15.

Inn, Edward C. Y., J. F. Vedder, Estelle P. Condon, & D. O'Hara. (1981). Gaseous Constituents in the Plume from Eruptions of Mount St. Helens. Science. 211(4484). 821–823. 32 indexed citations

16.

Inn, Edward C. Y., et al.. (1979). COS in the stratosphere. Geophysical Research Letters. 6(3). 191–193. 58 indexed citations

17.

Arvesen, J. C., et al.. (1978). Interhemispheric gradients of CF₂Cl₂, CFCl₃, CCl₄, and N₂O. Geophysical Research Letters. 5(6). 535–538. 15 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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