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width=150 height=150></div><div class="portrait-title dark:text-white"><div class="text-3xl font-bold mb-2 mt-6">Sarah Pederzani</div><h3 class="font-semibold mb-1">Postdoctoral Researcher</h3><div class=mb-2><a href=https://wateriso.utah.edu/spatial/#people target=_blank rel=noopener><div>University of Utah</div></a></div></div><ul class="network-icon dark:text-zinc-100"><li><a href=mailto:[email protected] aria-label=at-symbol data-toggle=tooltip data-placement=top title="E-mail Me"><svg style="height:1.5rem" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentcolor" stroke-linecap="round" stroke-width="1.5" d="M16.5 12a4.5 4.5.0 11-9 0 4.5 4.5.0 019 0zm0 0c0 1.657 1.007 3 2.25 3S21 13.657 21 12a9 9 0 10-2.636 6.364M16.5 12V8.25"/></svg></a></li><li><a href=https://twitter.com/pederzani_sarah target=_blank rel=noopener aria-label=brands/x><svg style="height:1.5rem" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentcolor" 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2<path fill="currentcolor" d="M336.62 194.538c-7.13-3.328-13.866-5.56-20.253-6.614-6.365-1.095-16.574-1.612-30.71-1.612h-36.704v152.747h37.634c14.673.0 26.081-1.013 34.224-3.017 8.142-2.004 14.921-4.526 20.356-7.626a69.448 69.448.0 0014.942-11.388c14.488-14.714 21.742-33.273 21.742-55.717.0-22.052-7.44-40.052-22.341-53.982-5.498-5.166-11.822-9.444-18.89-12.793zM256 8C119.022 8 8 119.042 8 256s111.022 248 248 248 248-111.042 248-248S392.978 8 256 8zm-82.336 357.513h-29.389V160.148h29.389zM158.95 138.696c-11.14.0-20.213-9.01-20.213-20.212.0-11.118 9.052-20.191 20.213-20.191 11.18.0 20.232 9.052 20.232 20.191a20.194 20.194.0 01-20.232 20.212zm241.386 163.597c-5.29 12.545-12.834 23.581-22.65 33.088-9.982 9.837-21.597 17.194-34.844 22.196-7.75 3.017-14.839 5.063-21.307 6.117-6.49 1.013-18.828 1.509-37.076 1.509h-64.956V160.148h69.233c27.962.0 50.034 4.154 66.32 12.545 16.265 8.37 29.181 20.728 38.792 36.972 9.61 16.265 14.425 34.018 14.425 53.196.023 13.765-2.666 26.908-7.936 39.432z"/></svg></a></li></ul></div></div><div class="flex-auto max-w-prose md:mt-12"><div class="pt-2 justify-content-center prose prose-slate dark:prose-invert"><div class=bio-text><h2 id=about-me>About Me</h2><p>I am a palaeoclimate scientist pursuing questions around terrestrial climate and wildfire changes, the development of climate resilience and adaptability in human history, and how we can leverage observations of both past climate states and human evolution to face the current climate crisis. In my work I use computational (Bayesian forward modelling/proxy system modelling), geochemical (stable isotopes), and biomolecular (lipid biomarker) methods.</p><p>I am postdoctoral researcher at the Department of Geology & Geophysics, University of Utah, where I develop Bayesian methods to improve hydroclimate and wildfire reconstructions. As part of the NSF-funded StalFire project my work at U of U uses stalagmite records of hydroclimate change and wildfire histories in Early Holocene and Late Pleistocene California to shed light on the relationship between rainfall patterns and wildfires with important implications for understanding future wildfire and flooding risks. I lead the development of Bayesian forward models of a range of stalagmite proxy systems of past fire activity (PAHs, Levoglucosan) and hydroclimate (C & O isotopes, trace elements, Ca isotopes).</p><p>In previous and ongoing work I explore how humans developed adaptations to changing climates and ultimately became a global species. In this context I use stable isotope and lipid biomarker methods reconstruct the climatic conditions that different human groups faced and which ecological niches they preferred ~130,000&ndash;30,000 years ago. Some of my recent research has shown that early Homo sapiens groups spreading into Europe were much more resilient to cold climates than previously thought. Going forward I am exploring the role of fire use in shaping the climate adaptations of past humans and how wildfires and anthropogenic fires became intertwined during human evolutionary history.</p></div></div><a href=uploads/resume.pdf target=_blank class="inline-flex items-center px-4 py-2 text-sm font-medium text-gray-900 bg-white border border-gray-200 rounded-lg hover:bg-gray-100 hover:text-primary-700 focus:z-10 focus:ring-4 focus:outline-none focus:ring-gray-200 focus:text-primary-700 dark:bg-gray-800 dark:text-gray-400 dark:border-gray-600 dark:hover:text-white dark:hover:bg-gray-700 dark:focus:ring-gray-700"><svg class="w-3.5 h-3.5 me-2.5" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" fill="currentcolor" viewBox="0 0 20 20"><path d="M14.707 7.793a1 1 0 00-1.414.0L11 10.086V1.5a1 1 0 00-2 0v8.586L6.707 7.793A1 1 0 105.293 9.207l4 4a1 1 0 001.416.0l4-4a1 1 0 00-.002-1.414z"/><path d="M18 12h-2.55l-2.975 2.975a3.5 3.5.0 01-4.95.0L4.55 12H2a2 2 0 00-2 2v4a2 2 0 002 2h16a2 2 0 002-2v-4a2 2 0 00-2-2zm-3 5a1 1 0 110-2 1 1 0 010 2z"/></svg> Download CV</a><div class="grid grid-cols-2 gap-4 justify-between mt-6 dark:text-gray-300"><div><div class="section-subheading mb-3">Interests</div><ul class="list-disc list-inside space-y-1 pl-5"><li>climate change, wildfires, and anthropogenic fires in the past and present</li><li>The evolution of human climate resilience</li><li>Bayesian proxy system modelling</li><li>stable isotope geochemistry</li><li>lipid biomarker analysis</li></ul></div><div><div class="section-subheading mb-3">Education</div><ul><li class="flex items-start gap-3"><svg style="" class="flex-shrink-0 w-5 h-5 me-2 mt-1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
2<path fill="none" stroke="currentcolor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M4.26 10.147a60.436 60.436.0 00-.491 6.347A48.627 48.627.0 0112 20.904a48.627 48.627.0 018.232-4.41 60.46 60.46.0 00-.491-6.347m-15.482.0a50.57 50.57.0 00-2.658-.813A59.905 59.905.0 0112 3.493a59.902 59.902.0 0110.399 5.84 51.39 51.39.0 00-2.658.814m-15.482.0A50.697 50.697.0 0112 13.489a50.702 50.702.0 017.74-3.342M6.75 15a.75.75.0 100-1.5.75.75.0 000 1.5m0 0v-3.675A55.378 55.378.0 0112 8.443m-7.007 11.55A5.981 5.981.0 006.75 15.75v-1.5"/></svg><div class=description><p class=course>PhD Archaeology</p><p class=text-sm>Max-Planck-Institute for Evolutionary Anthropology, Germany & University of Aberdeen, UK</p></div></li><li class="flex items-start gap-3"><svg style="" class="flex-shrink-0 w-5 h-5 me-2 mt-1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentcolor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M4.26 10.147a60.436 60.436.0 00-.491 6.347A48.627 48.627.0 0112 20.904a48.627 48.627.0 018.232-4.41 60.46 60.46.0 00-.491-6.347m-15.482.0a50.57 50.57.0 00-2.658-.813A59.905 59.905.0 0112 3.493a59.902 59.902.0 0110.399 5.84 51.39 51.39.0 00-2.658.814m-15.482.0A50.697 50.697.0 0112 13.489a50.702 50.702.0 017.74-3.342M6.75 15a.75.75.0 100-1.5.75.75.0 000 1.5m0 0v-3.675A55.378 55.378.0 0112 8.443m-7.007 11.55A5.981 5.981.0 006.75 15.75v-1.5"/></svg><div class=description><p class=course>MA Prehistoric and Historic Archaeology</p><p class=text-sm>Christian-Albrechts-University Kiel, Germany</p></div></li><li class="flex items-start gap-3"><svg style="" class="flex-shrink-0 w-5 h-5 me-2 mt-1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="none" stroke="currentcolor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M4.26 10.147a60.436 60.436.0 00-.491 6.347A48.627 48.627.0 0112 20.904a48.627 48.627.0 018.232-4.41 60.46 60.46.0 00-.491-6.347m-15.482.0a50.57 50.57.0 00-2.658-.813A59.905 59.905.0 0112 3.493a59.902 59.902.0 0110.399 5.84 51.39 51.39.0 00-2.658.814m-15.482.0A50.697 50.697.0 0112 13.489a50.702 50.702.0 017.74-3.342M6.75 15a.75.75.0 100-1.5.75.75.0 000 1.5m0 0v-3.675A55.378 55.378.0 0112 8.443m-7.007 11.55A5.981 5.981.0 006.75 15.75v-1.5"/></svg><div class=description><p class=course>BSc Prehistoric and Historic Archaeology (major) & Chemistry (minor)</p><p class=text-sm>Christian-Albrechts-University Kiel, Germany</p></div></li></ul></div></div></div></div></section><section id=papers class="relative hbb-section blox-collection dark" style="padding:4rem 0"><div class=home-section-bg></div><div class="flex flex-col items-center max-w-prose mx-auto gap-3 justify-center"><div class="mb-6 text-3xl font-bold text-gray-900 dark:text-white">Ongoing Projects</div></div><div class="flex flex-col items-center"><div class="container px-8 mx-auto xl:px-5 py-5 lg:py-8 max-w-screen-lg"><div class="grid gap-10 md:grid-cols-2 lg:gap-10"><div class="group cursor-pointer"><div class="overflow-hidden rounded-md bg-gray-100 transition-all hover:scale-105 dark:bg-gray-800"><a class="relative block aspect-video" href=/project/besor/><img alt="Late Pleistocene hydroclimatic change in the Negev Desert" class="object-fill transition-all" data-nimg=fill decoding=async fetchpriority=high height=540 loading=lazy src=/project/besor/featured_hu519d5816abde565767b82a8df6490829_375971_2991c6cc26ab31c4d934f8589bb98bfa.webp style=position:absolute;height:100%;width:100%;inset:0;color:transparent width=960></a></div><div><div><div class="flex gap-3"><a href=/tags/palaeoclimate/><span class="inline-block text-xs font-medium tracking-wider uppercase mt-5 text-primary-700 dark:text-primary-300">Palaeoclimate</span></a></div><h2 class="text-lg font-semibold leading-snug tracking-tight mt-2 dark:text-white"><a href=/project/besor/><span class="bg-gradient-to-r from-primary-200 to-primary-100 bg-[length:0px_10px] bg-left-bottom bg-no-repeat transition-[background-size] duration-500 hover:bg-[length:100%_3px] group-hover:bg-[length:100%_10px] dark:from-primary-800 dark:to-primary-900">Late Pleistocene hydroclimatic change in the Negev Desert</span></a></h2><div class=grow><p class="mt-2 line-clamp-3 text-sm text-gray-500 dark:text-gray-400"><a href=/project/besor/>The Irene Sala Care Foundation project "Site-specific hydroclimatic and palaeoenvironmental markers at B60, an Upper Paleolithic site in the lower Besor Basin" uses plant wax biomarkers to reconstruct hydroclimate change in the Negev desert during late MIS 3</a></p></div><div class=flex-none><div class="mt-3 flex items-center space-x-3 text-gray-500 dark:text-gray-400 cursor-default"><time class="truncate text-sm" datetime=2024-05-07>May 7, 2024</time></div></div></div></div></div><div class="group cursor-pointer"><div class="overflow-hidden rounded-md bg-gray-100 transition-all hover:scale-105 dark:bg-gray-800"><a class="relative block aspect-video" href=/project/stalfire/><img alt="StalFire - Hydroclimate-Wildfire relationships in California" class="object-fill transition-all" data-nimg=fill decoding=async fetchpriority=high height=540 loading=lazy src=/project/stalfire/featured_huebbfad1edfa8e198fe68a27ac6a615ca_1503590_181038c548521e20dcae72df8e56be8b.webp style=position:absolute;height:100%;width:100%;inset:0;color:transparent width=960></a></div><div><div><div class="flex gap-3"><a href=/tags/proxy-system-modelling/>
2<span class="inline-block text-xs font-medium tracking-wider uppercase mt-5 text-primary-700 dark:text-primary-300">Proxy System Modelling</span></a></div><h2 class="text-lg font-semibold leading-snug tracking-tight mt-2 dark:text-white"><a href=/project/stalfire/><span class="bg-gradient-to-r from-primary-200 to-primary-100 bg-[length:0px_10px] bg-left-bottom bg-no-repeat transition-[background-size] duration-500 hover:bg-[length:100%_3px] group-hover:bg-[length:100%_10px] dark:from-primary-800 dark:to-primary-900">StalFire - Hydroclimate-Wildfire relationships in California</span></a></h2><div class=grow><p class="mt-2 line-clamp-3 text-sm text-gray-500 dark:text-gray-400"><a href=/project/stalfire/>StalFire is multi-lab collaborative framework (consortium) established to facilitate research focused on utilizing paleoclimate data archived in stalagmites. The primary goal is to provide new insights into paleo-wildfires, with a specific emphasis on assessing the paleoclimate-wildfire relationship in CA across multiple timescales and under different climate states. As part of this consortium I am developing a Bayesian stalagmite proxy system model targeting both established palaeoclimate proxies and novel biomarker proxies of fire activity.</a></p></div><div class=flex-none><div class="mt-3 flex items-center space-x-3 text-gray-500 dark:text-gray-400 cursor-default"><time class="truncate text-sm" datetime=2024-01-01>Jan 1, 2024</time></div></div></div></div></div><div class="group cursor-pointer"><div class="overflow-hidden rounded-md bg-gray-100 transition-all hover:scale-105 dark:bg-gray-800"><a class="relative block aspect-video" href=/project/laferrassie/><img alt="Climatic drivers of Neanderthal site occupation" class="object-fill transition-all" data-nimg=fill decoding=async fetchpriority=high height=540 loading=lazy src=/project/laferrassie/featured_huf9c2a62ba53c7f4044290c44597890e7_215376_82c2af2e85dc2077fe9148cec0584ad0.webp style=position:absolute;height:100%;width:100%;inset:0;color:transparent width=960></a></div><div><div><div class="flex gap-3"><a href=/tags/lipid-biomarkers/><span class="inline-block text-xs font-medium tracking-wider uppercase mt-5 text-primary-700 dark:text-primary-300">Lipid Biomarkers</span></a></div><h2 class="text-lg font-semibold leading-snug tracking-tight mt-2 dark:text-white"><a href=/project/laferrassie/><span class="bg-gradient-to-r from-primary-200 to-primary-100 bg-[length:0px_10px] bg-left-bottom bg-no-repeat transition-[background-size] duration-500 hover:bg-[length:100%_3px] group-hover:bg-[length:100%_10px] dark:from-primary-800 dark:to-primary-900">Climatic drivers of Neanderthal site occupation</span></a></h2><div class=grow><p class="mt-2 line-clamp-3 text-sm text-gray-500 dark:text-gray-400"><a href=/project/laferrassie/>The Leopoldina funded project "Developing a multi-proxy stable isotope approach to demonstrating the climatic preferences of site-use of Late Pleistocene humans" uses plant wax biomarkers and faunal stable isotope analysis to detect climatic preferences in Neanderthal site occupation strategies</a></p></div><div class=flex-none><div class="mt-3 flex items-center space-x-3 text-gray-500 dark:text-gray-400 cursor-default"><time class="truncate text-sm" datetime=2022-02-01>Feb 1, 2022</time></div></div></div></div></div></div></div></div></section><section id=section-collection class="relative hbb-section blox-collection dark" style="padding:4rem 0"><div class=home-section-bg></div><div class="flex flex-col items-center max-w-prose mx-auto gap-3 justify-center"><div class="mb-6 text-3xl font-bold text-gray-900 dark:text-white">Recent Publications</div></div><div class="flex flex-col items-center"><div class="container px-8 mx-auto xl:px-5 py-5 lg:py-8 max-w-screen-lg"><div class="grid gap-10 md:grid-cols-2 lg:gap-10"><div class="group cursor-pointer"><div class="overflow-hidden rounded-md bg-gray-100 transition-all hover:scale-105 dark:bg-gray-800"><a class="relative block aspect-video" href=/publication/pederzani-2024/><img alt="Stable isotopes show Homo sapiens dispersed into cold steppes ~45,000 years ago at Ilsenhöhle in Ranis, Germany" class="object-fill transition-all" data-nimg=fill decoding=async fetchpriority=high height=540 loading=lazy src=/publication/pederzani-2024/featured_hu23e0ecf1aa8f5be599865159dc87e62b_4255543_5f8db600fa45914d19c4ca19bdea57a5.webp style=position:absolute;height:100%;width:100%;inset:0;color:transparent width=960></a></div><div><div><div class="flex gap-3"><a href=/tags/palaeoclimate/>
2<span class="inline-block text-xs font-medium tracking-wider uppercase mt-5 text-primary-700 dark:text-primary-300">Palaeoclimate</span></a></div><h2 class="text-lg font-semibold leading-snug tracking-tight mt-2 dark:text-white"><a href=/publication/pederzani-2024/><span class="bg-gradient-to-r from-primary-200 to-primary-100 bg-[length:0px_10px] bg-left-bottom bg-no-repeat transition-[background-size] duration-500 hover:bg-[length:100%_3px] group-hover:bg-[length:100%_10px] dark:from-primary-800 dark:to-primary-900">Stable isotopes show Homo sapiens dispersed into cold steppes ~45,000 years ago at Ilsenhöhle in Ranis, Germany</span></a></h2><div class=grow><p class="mt-2 line-clamp-3 text-sm text-gray-500 dark:text-gray-400"><a href=/publication/pederzani-2024/></a></p></div><div class=flex-none><div class="mt-3 flex items-center space-x-3 text-gray-500 dark:text-gray-400 cursor-default"><time class="truncate text-sm" datetime=2024-03-01>Mar 1, 2024</time></div></div></div></div></div><div class="group cursor-pointer"><div class="overflow-hidden rounded-md bg-gray-100 transition-all hover:scale-105 dark:bg-gray-800"><a class="relative block aspect-video" href=/publication/mylopotamitaki-2024/><img alt="Homo sapiens reached the higher latitudes of Europe by 45,000 years ago" class="object-fill transition-all" data-nimg=fill decoding=async fetchpriority=high height=540 loading=lazy src=/publication/mylopotamitaki-2024/featured_huebbfad1edfa8e198fe68a27ac6a615ca_2257703_86f3fd116efbbaaf1a81b8634ef77ea8.webp style=position:absolute;height:100%;width:100%;inset:0;color:transparent width=960></a></div><div><div><div class="flex gap-3"><a href=/tags/human-evolution/><span class="inline-block text-xs font-medium tracking-wider uppercase mt-5 text-primary-700 dark:text-primary-300">Human Evolution</span></a></div><h2 class="text-lg font-semibold leading-snug tracking-tight mt-2 dark:text-white"><a href=/publication/mylopotamitaki-2024/><span class="bg-gradient-to-r from-primary-200 to-primary-100 bg-[length:0px_10px] bg-left-bottom bg-no-repeat transition-[background-size] duration-500 hover:bg-[length:100%_3px] group-hover:bg-[length:100%_10px] dark:from-primary-800 dark:to-primary-900">Homo sapiens reached the higher latitudes of Europe by 45,000 years ago</span></a></h2><div class=grow><p class="mt-2 line-clamp-3 text-sm text-gray-500 dark:text-gray-400"><a href=/publication/mylopotamitaki-2024/></a></p></div><div class=flex-none><div class="mt-3 flex items-center space-x-3 text-gray-500 dark:text-gray-400 cursor-default"><time class="truncate text-sm" datetime=2024-02-01>Feb 1, 2024</time></div></div></div></div></div><div class="group cursor-pointer"><div class="overflow-hidden rounded-md bg-gray-100 transition-all hover:scale-105 dark:bg-gray-800"><a class="relative block aspect-video" href=/publication/pederzani-2023-late/><img alt="Late Pleistocene Neanderthal exploitation of stable and mosaic ecosystems in northern Iberia shown by multi-isotope evidence" class="object-fill transition-all" data-nimg=fill decoding=async fetchpriority=high height=540 loading=lazy src=/publication/pederzani-2023-late/featured_huf9d2dbc2ebb989ddccf1c840ff575e13_3259412_ab1083c13b48547762de1a9257a14fd0.webp style=position:absolute;height:100%;width:100%;inset:0;color:transparent width=960></a></div><div><div><div class="flex gap-3"></div><h2 class="text-lg font-semibold leading-snug tracking-tight mt-2 dark:text-white"><a href=/publication/pederzani-2023-late/><span class="bg-gradient-to-r from-primary-200 to-primary-100 bg-[length:0px_10px] bg-left-bottom bg-no-repeat transition-[background-size] duration-500 hover:bg-[length:100%_3px] group-hover:bg-[length:100%_10px] dark:from-primary-800 dark:to-primary-900">Late Pleistocene Neanderthal exploitation of stable and mosaic ecosystems in northern Iberia shown by multi-isotope evidence</span></a></h2><div class=grow><p class="mt-2 line-clamp-3 text-sm text-gray-500 dark:text-gray-400"><a href=/publication/pederzani-2023-late/></a></p></div><div class=flex-none><div class="mt-3 flex items-center space-x-3 text-gray-500 dark:text-gray-400 cursor-default"><time class="truncate text-sm" datetime=2023-01-01>Jan 1, 2023</time></div></div></div></div></div></div></div></div></section><section id=contact class="relative hbb-section blox-markdown" style="padding:4rem 0"><div class=home-section-bg></div><div class="flex flex-col items-center max-w-prose mx-auto gap-3 justify-center"><div class="mb-6 text-3xl font-bold text-gray-900 dark:text-white">Contact</div><div class="prose prose-slate lg:prose-xl dark:prose-invert max-w-prose"><p>✉️ [email protected]</p><p>🏢 Department of Geology & Geophysics, 115 South 1460 East, FASB, Salt Lake City, UT-84102</p></div></div></section></div><div class=page-footer><footer class="container mx-auto flex flex-col justify-items-center text-sm leading-6 mt-24 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