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.
A new, lower value of total solar irradiance: Evidence and climate significance
This map shows the geographic impact of Greg Kopp'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 Greg Kopp with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Greg Kopp more than expected).
This network shows the impact of papers produced by Greg Kopp. 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 Greg Kopp. The network helps show where Greg Kopp may publish in the future.
Co-authorship network of co-authors of Greg Kopp
This figure shows the co-authorship network connecting the top 25 collaborators of Greg Kopp.
A scholar is included among the top collaborators of Greg Kopp 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 Greg Kopp. Greg Kopp is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Wit, Thierry Dudok de & Greg Kopp. (2020). 1/f noise in irradiance records affects our understanding of trends in solar radiative forcing. AGU Fall Meeting Abstracts. 2020.1 indexed citations
Coddington, Odele, J. Lean, Peter Pilewskie, et al.. (2018). Recent Advances of the NOAA Solar Irradiance Climate Data Record and Comparisons with Independent Datasets. EGU General Assembly Conference Abstracts. 5539.
8.
Pilewskie, Peter, et al.. (2018). TSIS-1 and Continuity of the Total and Spectral Solar Irradiance Climate Data Record. EGU General Assembly Conference Abstracts. 5527.7 indexed citations
9.
Pilewskie, Peter, et al.. (2016). Continuing the Solar Irradiance Data Record with TSIS. AGU Fall Meeting Abstracts. 2016.1 indexed citations
10.
Wielicki, Bruce A., Rosemary R. Baize, M. G. Mlynczak, et al.. (2015). CLARREO Pathfinder Mission: Enabling Faster Observation of Climate Change. AGU Fall Meeting Abstracts. 2015.1 indexed citations
11.
Kopp, Greg. (2015). Solar Variability Magnitudes and Timescales. 29. 2251303.1 indexed citations
12.
Fehlmann, André, Greg Kopp, W. Schmütz, et al.. (2011). PREMOS Absolute Radiometer Calibration and Implications to on-orbit Measurements of the Total Solar Irradiance. AGU Fall Meeting Abstracts. 2011.1 indexed citations
13.
Pilewskie, Peter, et al.. (2009). Evaluating the Variability of Earth-reflected Hyperspectral Data Using Principal Component Analysis. AGU Fall Meeting Abstracts. 2009.1 indexed citations
Harder, J. W., G. M. Lawrence, Peter Pilewskie, et al.. (2008). SI-Traceable Solar Spectral Irradiance Measurements: The NPOESS TSIS Spectral Irradiance Monitor. AGU Fall Meeting Abstracts. 2008.1 indexed citations
16.
Pankratz, C. K., Barry G. Knapp, J. M. Fontenla, et al.. (2005). SORCE Solar Irradiance Data Products. AGU Spring Meeting Abstracts. 2005.1 indexed citations
17.
Kopp, Greg, James J. Butler, & G. M. Lawrence. (2005). The Absolute Accuracy of Space-Borne TSI Instruments: A Summary From the July 2005 TSI Accuracy Workshop. AGU Fall Meeting Abstracts. 2005.
18.
Kopp, Greg, Martin Snow, W. McClintock, & T. N. Woods. (2005). A Comparison of Total Solar Irradiance to the Mg II Index Based on SORCE Measurements. AGU Spring Meeting Abstracts. 2005.1 indexed citations
19.
Kopp, Greg, G. M. Lawrence, & G. J. Rottman. (2003). What is the Accuracy of the Total Irradiance Monitor. AGU Fall Meeting Abstracts. 2003.1 indexed citations
20.
Lindsey, C., et al.. (1988). Simultaneous Observations of Far-Infrared Solar Continuum Brightness Variations and Five-Minute Oscillations. Bulletin of the American Astronomical Society. 20. 690.2 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.