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.
How to decarbonise international shipping: Options for fuels, technologies and policies
2019472 citationsPaul Balcombe, Jamie Speirs et al.Energy Conversion and Managementprofile →
Levelized cost of CO2mitigation from hydrogen production routes
2018438 citationsBrett Parkinson, Paul Balcombe et al.Energy & Environmental Scienceprofile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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This map shows the geographic impact of Jamie Speirs'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 Jamie Speirs with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jamie Speirs more than expected).
This network shows the impact of papers produced by Jamie Speirs. 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 Jamie Speirs. The network helps show where Jamie Speirs may publish in the future.
Co-authorship network of co-authors of Jamie Speirs
This figure shows the co-authorship network connecting the top 25 collaborators of Jamie Speirs.
A scholar is included among the top collaborators of Jamie Speirs 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 Jamie Speirs. Jamie Speirs is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Balcombe, Paul, et al.. (2019). How to decarbonise international shipping: Options for fuels, technologies and policies. Energy Conversion and Management. 182. 72–88.472 indexed citations breakdown →
Parkinson, Brett, Paul Balcombe, Jamie Speirs, Adam Hawkes, & Klaus Hellgardt. (2018). Levelized cost of CO2mitigation from hydrogen production routes. Energy & Environmental Science. 12(1). 19–40.438 indexed citations breakdown →
Blyth, William, et al.. (2014). Low carbon jobs: the evidence for net job creation from policy support for energy efficiency and renewable energy. Figshare.64 indexed citations
McGlade, Christophe, Jamie Speirs, & Steven Sorrell. (2012). A review of regional and global estimates of unconventional gas resources. Sussex Research Online (University of Sussex).19 indexed citations
Sorrell, Steve, Jamie Speirs, Roger Bentley, Adam R. Brandt, & Richard G. Miller. (2010). Global oil depletion: A review of the evidence. Energy Policy. 38(9). 5290–5295.278 indexed citations
Sorrell, Steven, Jamie Speirs, Roger Bentley, Adam R. Brandt, & Richard G. Miller. (2009). Global oil depletion - an assessment of the evidence for a near-term peak in global oil production. Figshare.103 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.