Irka Hajdas

32.8k total citations · 4 hit papers
267 papers, 13.4k citations indexed

About

Irka Hajdas is a scholar working on Atmospheric Science, Paleontology and Archeology. According to data from OpenAlex, Irka Hajdas has authored 267 papers receiving a total of 13.4k indexed citations (citations by other indexed papers that have themselves been cited), including 172 papers in Atmospheric Science, 101 papers in Paleontology and 56 papers in Archeology. Recurrent topics in Irka Hajdas's work include Geology and Paleoclimatology Research (164 papers), Archaeology and ancient environmental studies (93 papers) and Pleistocene-Era Hominins and Archaeology (49 papers). Irka Hajdas is often cited by papers focused on Geology and Paleoclimatology Research (164 papers), Archaeology and ancient environmental studies (93 papers) and Pleistocene-Era Hominins and Archaeology (49 papers). Irka Hajdas collaborates with scholars based in Switzerland, United States and Germany. Irka Hajdas's co-authors include Georges Bonani, Gérard C. Bond, William Showers, Bernd Kromer, Raimund Muscheler, J. Beer, S. S. Hoffmann, Michael N. Evans, Rusty Lotti and Heidi Cullen and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Irka Hajdas

262 papers receiving 12.9k 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.

Persistent Solar Influence on North Atlantic Climate During the Holocene

2001 2.6k citations Irka Hajdas et al. profile →
A Pervasive Millennial-Scale Cycle in North Atlantic Holocene and Glacial Climates

1997 2.5k citations Irka Hajdas et al. profile →
High-precision 14C and 40Ar/39Ar dating of the Campanian Ignimbrite (Y-5) reconciles the time-scales of climatic-cultural processes at 40 ka

2017 196 citations Biagio Giaccio, Irka Hajdas et al. profile →
Radiocarbon dating

2021 126 citations Irka Hajdas et al. profile →

Peers

Countries citing papers authored by Irka Hajdas

Since Specialization

Citations

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

Fields of papers citing papers by Irka Hajdas

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Irka Hajdas

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Unbalanced social–ecological acceleration led to state formation failure in early medieval Poland 2025 ·Proceedings of the National Academy of Sciences ·Adam Izdebski, Sambor Czerwiński, (unknown), (unknown), (unknown), Raphael Gromig, Piotr Guzowski, Negar Haghipour, Irka Hajdas, Piotr Kołaczek, Mariusz Lamentowicz, Katarzyna Marcisz, (unknown), (unknown), Bernd Wagner	3
2	Late Pleistocene to Holocene event stratigraphy of Lake Hallstatt (Salzkammergut, Austria): revealed by the Hipercorig drilling system and borehole logging 2024 ·Scientific Drilling ·(unknown), Achim Brauer, (unknown), Jean Nicolas Haas, Irka Hajdas, (unknown), (unknown), Hans Reschreiter, Michael Strasser	1
3	Late Pleistocene to Holocene alluvial deposits of the Inaouène Valley and their paleoenvironmental significance (north Morocco) 2024 ·Quaternary Science Reviews ·(unknown), (unknown), Vincenzo Picotti, Irka Hajdas, Negar Haghipour, (unknown), (unknown), (unknown)	2
4	SAMPLE SELECTION, CHARACTERIZATION AND CHOICE OF TREATMENT FOR ACCURATE RADIOCARBON ANALYSIS—INSIGHTS FROM THE ETH LABORATORY 2024 ·Radiocarbon ·Irka Hajdas, (unknown), Negar Haghipour, (unknown)	1
5	The Dunes of Belvedere–San Marco of Aquileia: Integrating High-Resolution Digital Terrain Models and Multispectral Images with Ground-Penetrating Radar Survey to Map the Largest System of Continental Dunes of Northern Italy 2024 ·Remote Sensing ·(unknown), Alessandro Fontana, (unknown), Jacopo Boaga, Veronica Chiarini, Irka Hajdas	1
6	The Searsville Lake Site (California, USA) as a candidate Global boundary Stratotype Section and Point for the Anthropocene series 2023 ·The Anthropocene Review ·M. Allison Stegner, Elizabeth A. Hadly, Anthony D. Barnosky, S. La Selle, Brian L. Sherrod, R. Scott Anderson, (unknown), (unknown), K. L. Weaver, Andrew B. Cundy, P. Gaca, Neil L. Rose, Handong Yang, (unknown), Irka Hajdas, Bryan A. Black, Trisha Spanbauer	8
7	RADIOCARBON DATING OF MANUSCRIPTS KEPT IN THE CENTRAL LIBRARY OF THE UNIVERSITY OF TEHRAN 2023 ·Radiocarbon ·(unknown), (unknown), Irka Hajdas, (unknown), (unknown), (unknown)	1
8	The Biogeochemical Legacy of Arctic Subglacial Sediments Exposed by Glacier Retreat 2022 ·Global Biogeochemical Cycles ·(unknown), Tyler J. Kohler, Myrna J. Simpson, Irka Hajdas, Jacob C. Yde, Lukáš Falteisek, Jakub D. Žárský, Tiange Yuan, Václav Tejnecký, Filip Mercl, Eran Hood, Marek Stibal	22
9	COMPARISON OF THERMAL DECOMPOSITION AND SEQUENTIAL DISSOLUTION—TWO SAMPLE PREPARATION METHODS FOR RADIOCARBON DATING OF LIME MORTARS 2021 ·Radiocarbon ·(unknown), Alf Lindroos, Irka Hajdas, Åsa Ringbom, Jesper Olsen	7
10	Tree‐ring stable isotopes and radiocarbon reveal pre‐ and post‐eruption effects of volcanic processes on trees on Mt. Etna (Sicily, Italy) 2021 ·Ecohydrology ·(unknown), Irka Hajdas, Matthias Saurer, Nicolas Houlié, Rosanne D’Arrigo, James W. Kirchner, Paolo Cherubini	6
11	A field guide to mortar sampling for radiocarbon dating* 2020 ·Archaeometry ·(unknown), Alf Lindroos, Jan Heinemeier, Åsa Ringbom, (unknown), Danuta Michalska, Irka Hajdas, Rubina Raja, Jesper Olsen	19
12	The Awakening of the Dormant Mount Vettore Fault (2016 Central Italy Earthquake, M_w 6.6): Paleoseismic Clues on Its Millennial Silences 2019 ·Tectonics ·Paolo Galli, (unknown), Edoardo Peronace, Biagio Giaccio, Irka Hajdas, Paolo Messina, (unknown), (unknown)	44
13	Untargeted metabolomics-like screening approach for chemical characterization and differentiation of canopic jar and mummy samples from Ancient Egypt using GC-high resolution MS 2018 ·The Analyst ·(unknown), (unknown), Irka Hajdas, Francesco M. Galassi, Frank Rühli, Thomas Kræmer	25
14	The importance of independent chronology in integrating records of past climate change for the 60–8 ka INTIMATE time interval 2014 ·Quaternary Science Reviews ·Achim Brauer, Irka Hajdas, Simon Blockley, Christopher Bronk Ramsey, Marcus Christl, Susan Ivy‐Ochs, Gina E. Moseley, (unknown), Sune Olander Rasmussen, Helen M. Roberts, Christoph Spötl, Richard A. Staff, Anders Svensson	60
15	Reconnaissance dans la vallée de la Falémé (Sénégal oriental): la 15ème année de recherche du programme international «Peuplement humain et paléoenvironnement en Afrique de l'Ouest» 2013 ·Archive ouverte UNIGE (University of Geneva) ·Éric Huysecom, (unknown), (unknown), Benoît Chevrier, (unknown), (unknown), (unknown), Hamady Bocoum, (unknown), Irka Hajdas, Laurent Lespez, Michel Rassé	6
16	Soil acidity affects fine root turnover of European beech 2012 ·Plant Biosystems - An International Journal Dealing with all Aspects of Plant Biology ·(unknown), Irka Hajdas, Emmanuel Frossard, Ivano Brunner	21
17	Dating the Irrigation System of the Samarkand Oasis: A Geoarchaeological Study 2012 ·Radiocarbon ·Luca C. Malatesta, Sébastien Castelltort, (unknown), Vincenzo Picotti, Irka Hajdas, Guy Simpson, (unknown), Maurizio Tosi, Sean D. Willett	0
18	Dating the Irrigation System of the Samarkand Oasis: A Geoarchaeological Study 2012 ·Radiocarbon ·Luca C. Malatesta, Sébastien Castelltort, (unknown), Vincenzo Picotti, Irka Hajdas, Guy Simpson, (unknown), Maurizio Tosi, Sean D. Willett	6
19	Testing the Lake Agassiz meltwater trigger for the Younger Dryas 2005 ·Eos ·Thomas V. Lowell, (unknown), Timothy G. Fisher, Henry M. Loope, (unknown), (unknown), Irka Hajdas, George H. Denton, Joerg M. Schaefer, Vincent Rinterknecht, Wallace S. Broecker, James T. Teller	80
20	Radiocarbon and luminescence dating of overbank deposits in outwash sediments of the Last Glacial Maximum in North Westland, New Zealand 2003 ·New Zealand Journal of Geology and Geophysics ·Anne Hormes, Frank Preusser, George H. Denton, Irka Hajdas, Dominik Weiß, Thomas F. Stocker, Christian Schlüchter	21

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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