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Allegra N. LeGrande
Researcher at Goddard Institute for Space Studies
Publications - 120
Citations - 9321
Allegra N. LeGrande is an academic researcher from Goddard Institute for Space Studies. The author has contributed to research in topics: Climate model & Climate change. The author has an hindex of 44, co-authored 113 publications receiving 7407 citations. Previous affiliations of Allegra N. LeGrande include Lamont–Doherty Earth Observatory & Goddard Space Flight Center.
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Journal ArticleDOI
Global gridded data set of the oxygen isotopic composition in seawater
TL;DR: A 3D 1° × 1° gridded data set for the annual mean seawater oxygen isotope ratio (δ18O) to use in oceanographic and paleoceanographic applications is presented in this article.
Journal ArticleDOI
Configuration and Assessment of the GISS ModelE2 Contributions to the CMIP5 Archive
Gavin A. Schmidt,Max Kelley,Larissa Nazarenko,Reto Ruedy,Gary L. Russell,Igor Aleinov,Mike Bauer,Mike Bauer,Susanne E. Bauer,Maharaj K. Bhat,Rainer Bleck,Rainer Bleck,Vittorio Canuto,Yonghua Chen,Y. Cheng,Thomas Clune,Anthony D. Del Genio,Rosalinda de Fainchtein,Greg Faluvegi,James Hansen,R. Healy,Nancy Y. Kiang,Dorothy Koch,Andrew A. Lacis,Allegra N. LeGrande,Jean Lerner,Ken K. Lo,Elaine Matthews,Surabi Menon,Ron L. Miller,Valdar Oinas,Amidu Oloso,Jan P. Perlwitz,Jan P. Perlwitz,Michael J. Puma,William M. Putman,David Rind,Anastasia Romanou,Anastasia Romanou,Makiko Sato,Drew Shindell,Shan Sun,Rahman A. Syed,N. Tausnev,Kostas Tsigaridis,Nadine Unger,Apostolos Voulgarakis,Mao-Sung Yao,Jinlun Zhang +48 more
TL;DR: In this article, the authors present a description of the ModelE2 version of the GISS General Circulation Model (GCM) and the configurations used in the simulations performed for the Coupled Model Intercomparison Project Phase 5 (CMIP5).
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Ice melt, sea level rise and superstorms: evidence from paleoclimate data, climate modeling, and modern observations that 2 °C global warming could be dangerous
James Hansen,Makiko Sato,Paul J. Hearty,Reto Ruedy,Maxwell Kelley,Valérie Masson-Delmotte,Gary L. Russell,George Tselioudis,Junji Cao,Eric Rignot,Eric Rignot,Isabella Velicogna,Isabella Velicogna,Blair R. Tormey,Bailey G. Donovan,Evgeniya Kandiano,Karina von Schuckmann,Pushker Kharecha,Pushker Kharecha,Allegra N. LeGrande,Michael Bauer,Michael Bauer,K. Lo +22 more
TL;DR: The authors used numerical climate simulations, paleoclimate data, and modern observations to study the effect of growing ice melt from Antarctica and Greenland and found that ice mass loss from the most vulnerable ice, sufficient to raise sea level several meters, is better approximated as exponential than by a more linear response.
Journal ArticleDOI
Past and future polar amplification of climate change: climate model intercomparisons and ice-core constraints
Valérie Masson-Delmotte,Masa Kageyama,Pascale Braconnot,Sylvie Charbit,Gerhard Krinner,Catherine Ritz,Eric Guilyardi,Jean Jouzel,Ayako Abe-Ouchi,Ayako Abe-Ouchi,Michel Crucifix,Rupert Gladstone,Chris Hewitt,A. Kitoh,Allegra N. LeGrande,Olivier Marti,Ute Merkel,T. Motoi,Rumi Ohgaito,Bette L. Otto-Bliesner,W. R. Peltier,I. Ross,Paul J. Valdes,G. Vettoretti,S. L. Weber,Frank Wolk,Yongqiang Yu +26 more
TL;DR: In this article, a comparison of climate model simulations available from the PMIP1, PMIP2 and CMIP-AR4 intercomparison projects for past and future climate change simulations are examined in terms of polar temperature changes in comparison to global temperature changes and with respect to pre-industrial reference simulations.
Journal ArticleDOI
Rapid early Holocene deglaciation of the Laurentide ice sheet
Anders E. Carlson,Allegra N. LeGrande,Delia W Oppo,Rosemarie E Came,Gavin A. Schmidt,Faron S. Anslow,Joseph M. Licciardi,E. A. Obbink +7 more
TL;DR: In this paper, the authors use terrestrial and marine records of the deglaciation to identify two periods of rapid melting during the final demise of the Laurentide ice sheet, when melting ice contributed about 1.3 and 0.7 cm of sea level rise per year, respectively.