In 2008 I completed a Biology degree at Complutense University (Madrid, Spain) specialising in environmental sciences. From 2011 until 2013 I worked in the Climate Change Division of Repsol as an environmental consultant before figuring out that climate modelling was what I truly wanted to do. I have always been fascinated by global environmental change and modelling of the Earth System so undertook a Masters degree in Climate Change Science and Policy in 2014 and obtained a PhD in Physical Geography from the University of Bristol in 2020.
My research interests focus primarily on past climate change. I am interested in using climate models to develop a better understanding of the changes in the ice sheet, sea ice, and climate over the last 800,000 years.
I am currently involved in the EU-funded ANTSIE project, investigating summer sea-ice variability on the Antarctic margin during the last glacial period. In this task, the main objective of my study is to compare the features resulting from Dansgaard-Oeschger-like oscillations from a range of climate models with a novel archive of past sea-ice environments from snow petrels’ (Pagodroma Nivea) regurgitated stomach oils.
My previous research has particularly focused on explaining the Last Interglacial (LIG) Greenland δ18O maximum. In particular, I used the isotope-enabled HadCM3 climate model to investigate the isotopic signature of Arctic sea-ice changes and Greenland Ice Sheet retreat during the Last Interglacial and to determine whether this can be reconciled with Greenland ice core records.
Malmierca Vallet, I., Sime, L., Valdes, P., Klockmann, M., Vettoretti, G., & Slattery, J. (2024). HadCM3 model outputs: Spontaneous Dansgaard-Oeschger type oscillations (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/92b07757-3897-4a26-b93d-c508ffe93846
Guarino, M., & Sime, L. (2022). Last Interglacial summer air temperature observations for the Arctic (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/9ab58d27-596a-472c-a13e-2dcd68612082
Guarino, M., & Sime, L. (2021). HadCM3 and HadGEM3 LIG model outputs: A sea ice-free Arctic (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/9b138820-eec3-43ae-a49b-068a9f5931a4
Sime, L., Malmierca Vallet, I., Domingo, D., & Voss, J. (2019). Surface elevation of 69 Greenland Ice Sheet morphologies and associated δ18O anomalies (with respect to Pre-industrial) simulated by HadCM3 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01283
SDOO project investigates abrupt climate warming episodes recorded in Greenland ice cores, known as Dansgaard-Oeschger events, where temperatures rose by 10-15°C within a decade during the last glacial period.
