Hola,
¿eres nuevo aquí?

Regístrate gratis y conecta tu empresa con financiación pública, partners y proyectos.

Tengo cuenta

Regístrate

Ver video

Clumped Isotopes

Financiado

Cerrado

Reconstructing atmospheric oxidation processes in the past with clumped isotope...

Reconstructing atmospheric oxidation processes in the past with clumped isotope measurements in O2 trapped in polar firn and ice air Air trapped in polar ice cores provides a unique archive of atmospheric composition in the past. However, reactive gases are not stable in ice core air, and therefore no paleo-proxies exist that allow reconstructing the oxidation... ver más

24/09/2019

178K€

Presupuesto del proyecto: 178K€

Líder del proyecto

UNIVERSITEIT UTRECHT No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2019-09-24

MSCA-IF-2016: Individual Fellowships

I+D

Cerrada hace 8 años

0% 100%

Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

177.60K€ | Lider

Conecta tu I+D

¿Tienes un proyecto y buscas un partner? Gracias a nuestro motor inteligente podemos recomendarte los mejores socios y ponerte en contacto con ellos. Te lo explicamos en este video

Proyectos interesantes

OXYPRO Global biological productivity during abrupt climate change 219K€ Cerrado

PID2021-124991OB-I00 CHANGES IN THE EARTH'S STRATOSPHERE STRUCTURE 108K€ Cerrado

DOC-PAST Deciphering the Oxidizing Capacity of the PAST atmosphere 3M€ Cerrado

IRONLAKE Establishing stable IRON isotopes of laminated LAKE sediment... 175K€ Cerrado

ASIBIA Arctic sea ice biogeochemistry and impacts on the atmospher... 1M€ Cerrado

CNS2023-145305 Ciencias de la Tierra y del agua 192K€ Cerrado

Duración del proyecto: 31 meses Fecha Inicio: 2017-02-24
Fecha Fin: 2019-09-24

Líder del proyecto

UNIVERSITEIT UTRECHT No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 178K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Air trapped in polar ice cores provides a unique archive of atmospheric composition in the past. However, reactive gases are not stable in ice core air, and therefore no paleo-proxies exist that allow reconstructing the oxidation capacity of the past atmosphere from ice cores. Recent study shows that isotope exchange between highly reactive oxygen atoms (O(3P)) and relatively non-reactive O2 in the atmosphere imprints an isotope signal in the clumped isotopic composition of atmospheric O2, which can be a tracer for the abundance of O(3P) in the troposphere. Clumped isotopes are isotopologues containing more than one heavy isotope (e.g., 18O18O), and they are now detectable at high precision using modern technology. I propose here to develop these novel clumped isotope measurements on O2 into a tool to reconstruct the oxidative capacity in the past atmosphere from O2 trapped in firn and ice core air. I will first verify the hypothesis that the large clumped isotope signal originates from fast O(3P)+O2 exchange at low temperatures in the stratosphere, and that this signal is only partially erased by further exchange in the troposphere, where much lower O(3P) and higher temperatures prevail. Clumped isotope analyses on O2 trapped in ice cores will then be used to decipher past variations in atmospheric oxidation processes with a temporal resolution of decades to millennia. I am particularly interested in determining the effects of both natural (glacial-interglacial) climate variability and anthropogenic climate change associated with fossil fuel combustion on oxidation processes in the atmosphere. My experience in the field of clumped isotopes fits perfectly to the expertise of the host group in atmospheric research using isotopes, and the project will make use of the new world-leading high precision isotope ratio mass spectrometer MAT 253 ULTRA facility that will enable measurement of all 6 isotopologues of O2, including the rarest one, 17O17O, for the first time.

Conecta tu I+D

Entra hoy

¿Olvidé mi contraseña?

Financiación

Empresas

CTIs/Universidades

Proyectos

Investigadores