Annette Hammer

1.4k total citations
25 papers, 999 citations indexed

About

Annette Hammer is a scholar working on Artificial Intelligence, Renewable Energy, Sustainability and the Environment and Global and Planetary Change. According to data from OpenAlex, Annette Hammer has authored 25 papers receiving a total of 999 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Artificial Intelligence, 17 papers in Renewable Energy, Sustainability and the Environment and 9 papers in Global and Planetary Change. Recurrent topics in Annette Hammer's work include Solar Radiation and Photovoltaics (24 papers), Photovoltaic System Optimization Techniques (16 papers) and Solar Thermal and Photovoltaic Systems (10 papers). Annette Hammer is often cited by papers focused on Solar Radiation and Photovoltaics (24 papers), Photovoltaic System Optimization Techniques (16 papers) and Solar Thermal and Photovoltaic Systems (10 papers). Annette Hammer collaborates with scholars based in Germany, India and Türkiye. Annette Hammer's co-authors include Elke Lorenz, Detlev Heinemann, Hans Georg Beyer, Carsten Hoyer-Klick, Richard Müller, R. Kuhlemann, Richard Mueller, Bülent G. Akinoglu, Thomas Schmidt and Jan Kühnert and has published in prestigious journals such as Remote Sensing of Environment, Applied Energy and IEEE Transactions on Geoscience and Remote Sensing.

In The Last Decade

Annette Hammer

23 papers receiving 917 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Annette Hammer Germany 13 828 565 284 255 120 25 999
Frank Vignola United States 15 878 1.1× 675 1.2× 300 1.1× 203 0.8× 116 1.0× 46 1.1k
Bella Espinar France 11 797 1.0× 479 0.8× 375 1.3× 161 0.6× 173 1.4× 12 937
J.L. Bosch Spain 20 832 1.0× 663 1.2× 269 0.9× 249 1.0× 121 1.0× 42 1.1k
Karl Hemker United States 10 814 1.0× 547 1.0× 187 0.7× 383 1.5× 166 1.4× 11 984
Jan Remund Switzerland 17 807 1.0× 502 0.9× 315 1.1× 332 1.3× 237 2.0× 49 1.2k
Luis F. Zarzalejo Spain 21 1.3k 1.5× 933 1.7× 297 1.0× 354 1.4× 88 0.7× 80 1.5k
Óscar Perpiñán Spain 18 648 0.8× 505 0.9× 171 0.6× 381 1.5× 84 0.7× 26 946
Nicholas A. Engerer Australia 15 768 0.9× 541 1.0× 271 1.0× 274 1.1× 168 1.4× 29 1.0k
R. George United States 10 579 0.7× 430 0.8× 183 0.6× 200 0.8× 54 0.5× 26 799
James Schlemmer United States 15 571 0.7× 404 0.7× 272 1.0× 244 1.0× 233 1.9× 27 880

Countries citing papers authored by Annette Hammer

Since Specialization
Citations

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

Fields of papers citing papers by Annette Hammer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Annette Hammer

This figure shows the co-authorship network connecting the top 25 collaborators of Annette Hammer. A scholar is included among the top collaborators of Annette Hammer 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 Annette Hammer. Annette Hammer 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.
2.
Blum, Niklas, Annette Hammer, Stefan Wilbert, et al.. (2025). Eye2Sky – a network of all-sky imager and meteorological measurement stations for high resolution nowcasting of solar irradiance. Meteorologische Zeitschrift. 34(1). 35–55.
3.
Nouri, Bijan, Niklas Blum, Annette Hammer, et al.. (2024). Application of nowcasting to reduce the impact of irradiance ramps on PV power plants. EPJ Photovoltaics. 15. 15–15. 3 indexed citations
4.
Roy, Arindam, Barun Kumar, Annette Hammer, et al.. (2023). Development of a day-ahead solar power forecasting model chain for a 250 MW PV park in India. International journal of energy and environmental engineering. 14(4). 973–989. 7 indexed citations
5.
Roy, Arindam, et al.. (2022). Impact of tropical convective conditions on solar irradiance forecasting based on cloud motion vectors. Environmental Research Letters. 17(10). 104048–104048. 6 indexed citations
6.
Kashyap, Yashwant, Ankit Bansal, Anil Kumar Sao, & Annette Hammer. (2018). Model for Estimation of Global Horizontal Irradiance in the Presence of Dust, Fog, and Clouds. IEEE Transactions on Geoscience and Remote Sensing. 56(12). 7030–7037. 4 indexed citations
7.
Lohmann, Gerald M., Annette Hammer, Adam H. Monahan, Thomas Schmidt, & Detlev Heinemann. (2017). Simulating clear-sky index increment correlations under mixed sky conditions using a fractal cloud model. Solar Energy. 150. 255–264. 25 indexed citations
8.
9.
Hammer, Annette, et al.. (2015). Short-Term Forecasting of Surface Solar Irradiance Based on Meteosat-SEVIRI Data Using a Nighttime Cloud Index. Remote Sensing. 7(7). 9070–9090. 23 indexed citations
10.
11.
Hammer, Annette, et al.. (2013). Solar spectral irradiance derived from satellite data: A tool to improve thin film PV performance estimations?. Solar Energy. 98. 100–110. 20 indexed citations
12.
Mueller, Richard, et al.. (2012). A New Algorithm for the Satellite-Based Retrieval of Solar Surface Irradiance in Spectral Bands. Remote Sensing. 4(3). 622–647. 103 indexed citations
13.
14.
Mayer, Bernhard, Thomas R. Betts, Ralph Gottschalg, et al.. (2010). Systematic Analysis of Meteorological Irradiation Effects. EU PVSEC. 4545–4548. 11 indexed citations
15.
Kuhlemann, R., Annette Hammer, Anja Drews, et al.. (2006). Energy-Specific Solar Radiation Data from Meteosat Second Generation (MSG): The Heliosat-3 Project. 5 indexed citations
16.
Lorenz, Elke, Annette Hammer, & Detlev Heinemann. (2004). Short term forecasting of solar radiation based on satellite data. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 73 indexed citations
17.
Hammer, Annette, Detlev Heinemann, Carsten Hoyer-Klick, et al.. (2003). Solar energy assessment using remote sensing technologies. Remote Sensing of Environment. 86(3). 423–432. 315 indexed citations
18.
Hammer, Annette. (2001). Satellite Based Short-Term Forecasting of Solar Irradiance-Comparison of Methods and Error Analysis. 12 indexed citations
19.
Beyer, Hans Georg, Annette Hammer, & Detlev Heinemann. (1997). Satellite-derived irradiance statistics for Africa. Solar Energy. 59(4-6). 233–240. 2 indexed citations
20.
Beyer, Hans Georg, et al.. (1994). Analysis and synthesis of cloud pattern for radiation field studies. Solar Energy. 52(5). 379–390. 19 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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