G. Helas

2.7k total citations
30 papers, 1.2k citations indexed

About

G. Helas is a scholar working on Atmospheric Science, Global and Planetary Change and Pollution. According to data from OpenAlex, G. Helas has authored 30 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Atmospheric Science, 22 papers in Global and Planetary Change and 3 papers in Pollution. Recurrent topics in G. Helas's work include Atmospheric chemistry and aerosols (23 papers), Atmospheric Ozone and Climate (12 papers) and Atmospheric and Environmental Gas Dynamics (11 papers). G. Helas is often cited by papers focused on Atmospheric chemistry and aerosols (23 papers), Atmospheric Ozone and Climate (12 papers) and Atmospheric and Environmental Gas Dynamics (11 papers). G. Helas collaborates with scholars based in Germany, France and South Africa. G. Helas's co-authors include Meinrat O. Andreae, L. T. Marufu, Otmar Schmid, Patience Gwaze, J. Rudolph, Frank Drewnick, Stephan Borrmann, Johannes Schneider, S. Weimer and U. Kirchner and has published in prestigious journals such as Nature, Journal of Geophysical Research Atmospheres and Geophysical Research Letters.

In The Last Decade

G. Helas

30 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
G. Helas Germany 20 987 641 357 125 100 30 1.2k
N. Kumar India 16 744 0.8× 309 0.5× 408 1.1× 266 2.1× 53 0.5× 21 1.0k
K. Acker Germany 24 1.2k 1.3× 582 0.9× 609 1.7× 358 2.9× 53 0.5× 42 1.5k
W. Wieprecht Germany 20 1.1k 1.1× 505 0.8× 546 1.5× 296 2.4× 34 0.3× 41 1.2k
Kentaro Murano Japan 22 1.3k 1.3× 560 0.9× 689 1.9× 192 1.5× 74 0.7× 88 1.6k
Gary Kleiman United States 13 565 0.6× 335 0.5× 371 1.0× 165 1.3× 93 0.9× 19 866
Y. Desyaterik United States 19 1.6k 1.6× 674 1.1× 1.0k 2.9× 188 1.5× 69 0.7× 34 1.8k
Ingrid George United States 22 1.3k 1.3× 510 0.8× 950 2.7× 235 1.9× 77 0.8× 43 1.7k
S. A. Penkett United Kingdom 27 1.6k 1.6× 753 1.2× 529 1.5× 337 2.7× 32 0.3× 45 1.9k
Huan Yu China 17 919 0.9× 402 0.6× 682 1.9× 215 1.7× 42 0.4× 24 1.1k
Michael Aucott United States 11 492 0.5× 275 0.4× 317 0.9× 105 0.8× 119 1.2× 20 885

Countries citing papers authored by G. Helas

Since Specialization
Citations

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

Fields of papers citing papers by G. Helas

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by G. Helas. 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 G. Helas. The network helps show where G. Helas may publish in the future.

Co-authorship network of co-authors of G. Helas

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

All Works

20 of 20 papers shown
1.
Parmar, Rahul, M. Welling, Meinrat O. Andreae, & G. Helas. (2008). Water vapor release from biomass combustion. Atmospheric chemistry and physics. 8(20). 6147–6153. 26 indexed citations
2.
Helas, G. & Meinrat O. Andreae. (2008). Surface features on Sahara soil dust particles made visible by atomic force microscope (AFM) phase images. Atmospheric measurement techniques. 1(1). 1–8. 6 indexed citations
3.
Hungershoefer, K., Yoshiteru Iinuma, G. Helas, et al.. (2008). Modelling the optical properties of fresh biomass burning aerosol produced in a smoke chamber: results from the EFEU campaign. Atmospheric chemistry and physics. 8(13). 3427–3439. 32 indexed citations
4.
Winkler, Hartmut, Paola Formenti, Robert Swap, et al.. (2008). Evidence for large-scale transport of biomass burning aerosols from sunphotometry at a remote South African site. Atmospheric Environment. 42(22). 5569–5578. 20 indexed citations
5.
Chand, D., Otmar Schmid, Patience Gwaze, et al.. (2005). Laboratory measurements of smoke optical properties from the burning of Indonesian peat and other types of biomass. Geophysical Research Letters. 32(12). 30 indexed citations
6.
Dusek, Ulrike, G. P. Frank, G. Helas, et al.. (2005). “Missing” cloud condensation nuclei in peat smoke. Geophysical Research Letters. 32(11). 26 indexed citations
7.
Wiedensohler, Alfred, et al.. (2004). PHYSICAL PROPERTIES OF BIOMASS BURNING AEROSOL PARTICLES FROM THE EFEU EXPERIMENT. Journal of Aerosol Science. 35. S1165–S1166. 1 indexed citations
8.
Makarau, Amos, et al.. (2003). FIVE-DAY BACK TRAJECTORY CLIMATOLOGY FOR RUKOMECHI (ZAMBEZI VALLEY, ZIMBABWE). EGS - AGU - EUG Joint Assembly. 12704. 1 indexed citations
9.
Ludwig, Jörg, et al.. (2003). Domestic Combustion of Biomass Fuels in Developing Countries: A Major Source of Atmospheric Pollutants. Journal of Atmospheric Chemistry. 44(1). 23–37. 72 indexed citations
10.
Kituyi, Evans, et al.. (2001). Carbon monoxide and nitric oxide from biofuel fires in Kenya. Energy Conversion and Management. 42(13). 1517–1542. 30 indexed citations
11.
Helas, G., et al.. (1996). THE INFLUENCE OF VEGETATION FIRES ON THE CHEMICAL COMPOSITION OF THE ATMOSPHERE. South African Journal of Science. 92(3). 132–136. 7 indexed citations
12.
Andreae, Meinrat O., E. Atlas, G. W. Harris, et al.. (1996). Methyl halide emissions from savanna fires in southern Africa. Journal of Geophysical Research Atmospheres. 101(D19). 23603–23613. 137 indexed citations
13.
Helas, G., D. Scharffe, J. G. Goldammer, et al.. (1995). Airborne measurements of savanna fire emissions and the regional distributio of pyrogenic pollutants over Western Africa. Journal of Atmospheric Chemistry. 22(1-2). 217–239. 28 indexed citations
14.
Helas, G., D. Scharffe, J. G. Goldammer, et al.. (1995). Ozone production due to emissions from vegetation burning. Journal of Atmospheric Chemistry. 22(1-2). 163–174. 22 indexed citations
15.
Helas, G., et al.. (1992). Behavior of atmospheric formic and acetic acid in the presence of hydrometeors. Journal of Atmospheric Chemistry. 15(2). 101–115. 15 indexed citations
16.
Dlugi, R., R. Steinbrecher, Jan van Eijk, et al.. (1992). Biosphere/Atmosphere interactions: Integrated research in a European coniferous forest ecosystem. Atmospheric Environment Part A General Topics. 26(1). 171–189. 56 indexed citations
17.
Hamm, Stephan, G. Helas, & Peter Warneck. (1989). Acetonitrile in the air over Europe. Geophysical Research Letters. 16(6). 483–486. 17 indexed citations
18.
Andreae, Meinrat O., et al.. (1989). Measurements of organic acids over central Germany. Atmospheric Environment (1967). 23(7). 1531–1533. 50 indexed citations
19.
Perner, D., U. Platt, M. Trainer, et al.. (1987). Measurements of tropospheric OH concentrations: A comparison of field data with model predictions. Journal of Atmospheric Chemistry. 5(2). 185–216. 96 indexed citations
20.
Helas, G., et al.. (1987). Gas chromatographic determination of peroxyacetyl nitrate: Two convenient calibration techniques. Journal of Atmospheric Chemistry. 5(4). 405–415. 13 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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