Profiles

Jules Kajtar

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Jules B. Kajtar

Research Fellow

Institute for Marine and Antarctic Studies , Hobart CBD Campuses

Dr Jules Kajtar is a Research Fellow in Marine Heatwaves at the Institute for Marine and Antarctic Studies. His position is funded by the Australian Research Council’s Centre of Excellence for Climate Extremes (CLEX). He is a part of the UTAS research team for the Climate System Hub of National Environmental Science Program (NESP), Phase 2.

Biography

Before joining the University of Tasmania in March 2019, Jules was a postdoctoral researcher at the University of Exeter (UK) for two years. He was also a postdoctoral researcher at the University of New South Wales (Sydney) between 2012-2016.

Career summary

Qualifications

Degree

Thesis title

University

Country

Date of award

PhD

Smooth lattice general relativity, and SPH simulations of swimming linked bodies

Monash University

Australia

21/10/2010

BSc/BCS (1st Class Hons)

 

Monash University

Australia

27/04/2006

View more on Dr Jules Kajtar in WARP

Expertise

  • Marine heatwaves
  • Climate prediction
  • Climate variability

Research Themes

Jules’s research is aligned with two of the University’s research themes: Marine and Environment. The focus of his research are marine heatwaves – events during which sea temperatures are much warmer than usual for an extended period. These events can have profound impacts on marine ecosystems. Jules’s work will help to advance the understanding of processes driving marine heatwaves, with a view to improving predictability.

Jules also has in interest in studying large scale modes of climate variability, such as the El NiƱo/South Oscillation (ENSO) or the Interdecadal Pacific Oscillation (IPO).

Fields of Research

  • Physical oceanography (370803)
  • Climate change processes (370201)
  • Atmospheric dynamics (370105)

Research Objectives

  • Climate variability (excl. social impacts) (190502)
  • Climate change models (190501)
  • Effects of climate change on Australia (excl. social impacts) (190504)

Publications

Total publications

26

Highlighted publications

(4 outputs)
YearTypeCitationAltmetrics
2019Journal ArticleCai W, Wu L, Lengaigne M, Li T, McGregor S, et al., 'Pantropical climate interactions', Science, 363, (6430) Article aav4236. ISSN 0036-8075 (2019) [Refereed Article]

DOI: 10.1126/science.aav4236 [eCite] [Details]

Citations: Scopus - 264Web of Science - 249

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2018Journal ArticleKajtar JB, Santoso A, McGregor S, England MH, Baillie Z, 'Model under-representation of decadal Pacific trade wind trends and its link to tropical Atlantic bias', Climate Dynamics, 50, (3-4) pp. 1471-1484. ISSN 0930-7575 (2018) [Refereed Article]

DOI: 10.1007/s00382-017-3699-5 [eCite] [Details]

Citations: Scopus - 30Web of Science - 26

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2018Journal ArticleMcGregor S, Stuecker MF, Kajtar JB, England MH, Collins M, 'Model tropical Atlantic biases underpin diminished Pacific decadal variability', Nature Climate Change, 8 pp. 493-498. ISSN 1758-678X (2018) [Refereed Article]

DOI: 10.1038/s41558-018-0163-4 [eCite] [Details]

Citations: Scopus - 56Web of Science - 47

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2017Journal ArticleKajtar JB, Santoso A, England MH, Cai W, 'Tropical climate variability: interactions across the Pacific, Indian, and Atlantic Oceans', Climate Dynamics, 48, (7-8) pp. 2173-2190. ISSN 0930-7575 (2017) [Refereed Article]

DOI: 10.1007/s00382-016-3199-z [eCite] [Details]

Citations: Scopus - 44Web of Science - 37

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Journal Article

(20 outputs)
YearCitationAltmetrics
2022Holbrook NJ, Hernaman V, Koshiba S, Lako J, Kajtar JB, et al., 'Impacts of marine heatwaves on tropical western and central Pacific Island nations and their communities', Global and Planetary Change, 208 Article 103680. ISSN 0921-8181 (2022) [Refereed Article]

DOI: 10.1016/j.gloplacha.2021.103680 [eCite] [Details]

Citations: Scopus - 4Web of Science - 3

Co-authors: Holbrook NJ

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2022Kajtar JB, Hernaman V, Holbrook NJ, Petrelli P, 'Tropical western and central Pacific marine heatwave data calculated from gridded sea surface temperature observations and CMIP6', Data in Brief, 40 Article 107694. ISSN 2352-3409 (2022) [Refereed Article]

DOI: 10.1016/j.dib.2021.107694 [eCite] [Details]

Co-authors: Holbrook NJ; Petrelli P

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2022Wang Y, Kajtar JB, Alexander LV, Pilo GS, Holbrook NJ, 'Understanding the changing nature of marine cold-spells', Geophysical Research Letters, 49, (6) Article e2021GL097002. ISSN 0094-8276 (2022) [Refereed Article]

DOI: 10.1029/2021GL097002 [eCite] [Details]

Co-authors: Wang Y; Pilo GS; Holbrook NJ

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2021Kajtar JB, Holbrook NJ, Hernaman V, 'A catalogue of marine heatwave metrics and trends for the Australian region', Journal of Southern Hemisphere Earth Systems Science, 71, (3) pp. 284-302. ISSN 2206-5865 (2021) [Refereed Article]

DOI: 10.1071/ES21014 [eCite] [Details]

Citations: Scopus - 1Web of Science - 1

Co-authors: Holbrook NJ

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2021Kajtar JB, Santoso A, Collins M, Taschetto AS, England MH, et al., 'CMIP5 intermodel relationships in the baseline Southern Ocean climate system and with future projections', Earth's Future, 9, (6) Article e2020EF001873. ISSN 2328-4277 (2021) [Refereed Article]

DOI: 10.1029/2020EF001873 [eCite] [Details]

Citations: Scopus - 5Web of Science - 5

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2020Grose MR, Narsay S, Delage F, Dowdy AJ, Bador M, et al., 'Insights from CMIP6 for Australia's future climate', Earth's Future, 8, (5) Article e2019EF001469. ISSN 2328-4277 (2020) [Refereed Article]

DOI: 10.1029/2019EF001469 [eCite] [Details]

Citations: Scopus - 71Web of Science - 73

Co-authors: Holbrook NJ

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2019Cai W, Wu L, Lengaigne M, Li T, McGregor S, et al., 'Pantropical climate interactions', Science, 363, (6430) Article aav4236. ISSN 0036-8075 (2019) [Refereed Article]

DOI: 10.1126/science.aav4236 [eCite] [Details]

Citations: Scopus - 264Web of Science - 249

Tweet

2019Kajtar JB, Collins M, Frankcombe LM, England MH, Osborn TJ, et al., 'Global mean surface temperature response to large‐scale patterns of variability in observations and CMIP5', Geophysical Research Letters, 46, (4) pp. 2232-2241. ISSN 0094-8276 (2019) [Refereed Article]

DOI: 10.1029/2018GL081462 [eCite] [Details]

Citations: Scopus - 19Web of Science - 19

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2018Frankcombe LM, England MH, Kajtar JB, Mann ME, Steinman BA, 'On the choice of ensemble mean for estimating the forced signal in the presence of internal variability', Journal of Climate, 31 pp. 5681-5693. ISSN 0894-8755 (2018) [Refereed Article]

DOI: 10.1175/JCLI-D-17-0662.1 [eCite] [Details]

Citations: Scopus - 34Web of Science - 34

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2018Kajtar JB, Santoso A, McGregor S, England MH, Baillie Z, 'Model under-representation of decadal Pacific trade wind trends and its link to tropical Atlantic bias', Climate Dynamics, 50, (3-4) pp. 1471-1484. ISSN 0930-7575 (2018) [Refereed Article]

DOI: 10.1007/s00382-017-3699-5 [eCite] [Details]

Citations: Scopus - 30Web of Science - 26

Tweet

2018McGregor S, Stuecker MF, Kajtar JB, England MH, Collins M, 'Model tropical Atlantic biases underpin diminished Pacific decadal variability', Nature Climate Change, 8 pp. 493-498. ISSN 1758-678X (2018) [Refereed Article]

DOI: 10.1038/s41558-018-0163-4 [eCite] [Details]

Citations: Scopus - 56Web of Science - 47

Tweet

2017Kajtar JB, Santoso A, England MH, Cai W, 'Tropical climate variability: interactions across the Pacific, Indian, and Atlantic Oceans', Climate Dynamics, 48, (7-8) pp. 2173-2190. ISSN 0930-7575 (2017) [Refereed Article]

DOI: 10.1007/s00382-016-3199-z [eCite] [Details]

Citations: Scopus - 44Web of Science - 37

Tweet

2015England MH, Kajtar JB, Maher N, 'Robust warming projections despite the recent hiatus', Nature Climate Change, 5 pp. 394-396. ISSN 1758-678X (2015) [Contribution to Refereed Journal]

DOI: 10.1038/nclimate2575 [eCite] [Details]

Citations: Scopus - 36Web of Science - 37

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2015Kajtar JB, Santoso A, England MH, Cai W, 'Indo-Pacific climate interactions in the absence of an Indonesian Throughflow', Journal of Climate, 28 pp. 5017-5029. ISSN 0894-8755 (2015) [Refereed Article]

DOI: 10.1175/JCLI-D-14-00114.1 [eCite] [Details]

Citations: Scopus - 15Web of Science - 12

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2013Monaghan JJ, Kajtar JB, 'Leonardo da Vinci's turbulent tank in two dimensions', European Journal of Mechanics B - Fluids, 44 pp. 1-9. ISSN 0997-7546 (2013) [Refereed Article]

DOI: 10.1016/j.euromechflu.2013.09.005 [eCite] [Details]

Citations: Scopus - 6Web of Science - 6

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2012Kajtar JB, Monaghan JJ, 'On the swimming of fish like bodies near free and fixed boundaries', European Journal of Mechanics B - Fluids, 33 pp. 1-13. ISSN 0997-7546 (2012) [Refereed Article]

DOI: 10.1016/j.euromechflu.2011.12.005 [eCite] [Details]

Citations: Scopus - 16Web of Science - 15

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2010Kajtar JB, Monaghan JJ, 'On the dynamics of swimming linked bodies', European Journal of Mechanics B - Fluids, 29, (5) pp. 377-386. ISSN 0997-7546 (2010) [Refereed Article]

DOI: 10.1016/j.euromechflu.2010.05.003 [eCite] [Details]

Citations: Scopus - 20Web of Science - 20

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2009Brewin L, Kajtar J, 'Smooth lattice construction of the Oppenheimer-Snyder spacetime', Physical Review D, 80, (10) Article 104004. ISSN 2470-0010 (2009) [Refereed Article]

DOI: 10.1103/PhysRevD.80.104004 [eCite] [Details]

Citations: Scopus - 6Web of Science - 4

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2009Monaghan JJ, Kajtar JB, 'SPH particle boundary forces for arbitrary boundaries', Computer Physics Communications, 180, (10) pp. 1811-1820. ISSN 0010-4655 (2009) [Refereed Article]

DOI: 10.1016/j.cpc.2009.05.008 [eCite] [Details]

Citations: Scopus - 231Web of Science - 207

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2008Kajtar J, Monaghan JJ, 'SPH simulations of swimming linked bodies', Journal of Computational Physics, 227, (19) pp. 8568-8587. ISSN 0021-9991 (2008) [Refereed Article]

DOI: 10.1016/j.jcp.2008.06.004 [eCite] [Details]

Citations: Scopus - 57Web of Science - 53

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Chapter in Book

(1 outputs)
YearCitationAltmetrics
2019Collins M, Sutherland M, Bouwer L, Cheong S-M, Frolicher T, et al., 'Extremes, Abrupt Changes and Managing Risk', IPCC Special Report on the Ocean and Cryosphere in a Changing Climate, The Intergovernmental Panel on Climate Change, H-O Portner, DC Roberts, V Masson-Delmotte, P Zhai, M Tignor, E Poloczanska, K Mintenbeck (ed), United Nations, pp. 589-655. (2019) [Other Book Chapter]

[eCite] [Details]

Co-authors: Hemer M

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Other Public Output

(5 outputs)
YearCitationAltmetrics
2021Kajtar J, Holbrook NJ, Hernaman V, 'Marine heatwaves off Western Australia: future projections', The Earth Systems and Climate Change Hub Project 5.8 - Marine and coastal climate services for extremes, National Environmental Science Programme, Australia (2021) [Report Other]

[eCite] [Details]

Co-authors: Holbrook NJ

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2021Kajtar J, Holbrook NJ, Hernaman V, 'Marine heatwaves in the Tasman Sea: future projections', The Earth Systems and Climate Change Hub Project 5.8 - Marine and coastal climate services for extremes, National Environmental Science Programme, Australia (2021) [Report Other]

[eCite] [Details]

Co-authors: Holbrook NJ

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2021Kajtar JB, Holbrook NJ, 'Future projections of marine heatwave hazards to aquaculture and fisheries in Tasmania', Institute for Marine and Antarctic Studies, University of Tasmania, Australia, October (2021) [Government or Industry Research]

[eCite] [Details]

Co-authors: Holbrook NJ

2021Kajtar JB, Holbrook NJ, Lyth A, 'Assessment and communication of risks to Tasmanian aquaculture and fisheries from marine heatwaves: stakeholder engagement synthesis', Institute for Marine and Antarctic Studies, University of Tasmania, Australia, October (2021) [Government or Industry Research]

[eCite] [Details]

Co-authors: Holbrook NJ

2021McInnes K, Kajtar J, Holbrook N, Hemer M, Hernaman V, 'Coastal Climate Services: A Review of Needs for Coastal, Marine and Offshore Applications', Earth Systems and Climate Change Hub, Australia, Report No. 18, March, pp. 1-42. (2021) [Report Other]

[eCite] [Details]

Co-authors: Holbrook N; Hemer M

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Grants & Funding

Funding Summary

Number of grants

3

Total funding

$39,362,474

Projects

NESP 2 CLIMATE SYSTEMS HUB CSIRO UMBRELLA AGREEMENT (2021 - 2027)$38,000,000
Description
The Climate Systems Hub provides the opportunity to further develop Australias climate science capability while working directly with adaptation practitioners . Having science and adaptation entwined together with other NESP Hubs is critical. Our vision involves scientists, practitioners, data-users and decision-makers participating in a two-way feedback loop with the Hub in shaping a national resilience buildingclimate research program with practical on-ground results.
Funding
Department of Agriculture Water and the Environment ($38,000,000)
Scheme
Grant-National Environmental Science Prgm (NESP)
Administered By
CSIRO-Commonwealth Scientific & Industrial Research Organisation
Research Team
Marsland S; Holbrook NJ; Harris R; Remenyi TA; Phillips HE; Kajtar JB; McDonald J
Period
2021 - 2027
Assessment and communication of risks to Tasmanian aquaculture and fisheries from marine heatwaves (2020 - 2021)$49,973
Description
Marine heatwaves are a growing threat to Tasmanias aquaculture and wild fishery industries underclimate change. This project will synthesise the highest quality projections data available for the Tasman Sea, and developtools to help industry prepare adaptation and mitigation strategies
Funding
Department of Premier and Cabinet ($49,973)
Scheme
Climate Research Grants Program
Administered By
University of Tasmania
Research Team
Kajtar JB; Holbrook NJ
Period
2020 - 2021
Marine and coastal climate services for extremes information (2019 - 2020)$1,312,501
Description
Australia is a coastal nation. Changes in coastal climate, via sea-level, waves and coastal extremes (including marine heatwaves), have broad implications for a range of coastal stakeholders (e.g., marine and coastal industry, coastal infrastructure design and management, coastal environmental management, lending and insurance). Hub research conducted to date has led to improved and new information on how marine and coastal extremes are changing and projected to change in future. In this phase, we will extend this understanding, by investigating and analysing a range of coastal and near-shore variables, such as sea level trends, current and future marine heat waves, extreme sea level, waves, estimates of ocean mass increases and the effects of wind, waves, sea level rise and storm surge on sediment compartments. This project will work closely with stakeholders to ensure this research is appropriately consolidated and delivered via a readily available, coproduced range of tools and data delivery mechanisms, to facilitate better understood and managed coastal climate risks in Australia.
Funding
Department of Environment and Energy (Cwth) ($1,312,501)
Scheme
Grant-National Environmental Science Prgm (NESP)
Administered By
CSIRO-Commonwealth Scientific & Industrial Research Organisation
Research Team
McInnes K; Hemer M; Zhang X; Holbrook NJ; Legresy B; O'Grady J; Trenham C; Kajtar JB
Period
2019 - 2020

Research Supervision

Current

1

Current

DegreeTitleCommenced
PhDUnderstanding the Predictability of Marine Heatwaves2020