The role of ice-ocean interactions in the past evolution of the Greenland Ice Sheet

Tesis llevada a cabo para conseguir el grado de Doctor por la Universidad de Complutense de Madrid.--2019-01-10.--Sobresaliente [EN] Assessing the response of the Greenland Ice Sheet (GrIS) to climate variations is crucial to understand its past and constrain its future evolution under a changing cl...

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Bibliographic Details
Main Author: Tabone, Ilaria
Other Authors: Montoya, Marisa, Robinson, Alexander, Ministerio de Economía y Competitividad (España)
Format: Thesis
Language:English
Published: Universidad Complutense de Madrid 2019
Subjects:
Online Access:http://hdl.handle.net/10261/190703
https://doi.org/10.13039/501100003329
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Summary:Tesis llevada a cabo para conseguir el grado de Doctor por la Universidad de Complutense de Madrid.--2019-01-10.--Sobresaliente [EN] Assessing the response of the Greenland Ice Sheet (GrIS) to climate variations is crucial to understand its past and constrain its future evolution under a changing climate. On one hand, the evidence of atmospheric warming observed since the last century has strongly demanded a major understanding of the sensitivity of the GrIS to atmospheric temperature variations, leading to extensive investigation of this topic in the past. On the other hand, only recent evidence connecting GrIS mass loss to warming North Atlantic waters has driven the attention to the potential role of a changing ocean on the GrIS evolution, an aspect that has been overlooked for a long time. Starting from this evidence, several studies have been dedicated to understanding the interactions between the current GrIS evolution and the surrounding ocean. However, although we are now aware that the ocean plays a non-negligible role in shaping the configuration of the present-day GrIS, many uncertainties remain about its role in the past. [ES] Comprender la respuesta del manto de hielo de Groenlandia (del ingles, GreenlandIce Sheet, GrIS) a las variaciones del clima es crucial para entender la evolucion pasada de dicho manto así como para constreñir su evolucion futura en un clima cambiante. Por un lado, la evidencia del calentamiento global observado desde el siglo pasado ha exigido una mejor comprension de la sensibilidad del GrIS frente a las variaciones de la temperatura del aire, lo que ha llevado a investigar ampliamente este asunto en el pasado. Por otra parte, recientemente las observaciones han permitido relacionar la perdida masiva de hielo del GrIS con el calentamiento del Atlantico Norte. Ello ha puesto el foco en el posible papel del oceano en la evolucion del GrIS, aspecto que se ha pasado por alto durante mucho tiempo. Desde entonces se ha hecho un esfuerzo importante por tratar de comprender mejor ...