Výsledky vyhledávání - "Thomas Krismer"

Effect of horizontal resolution on ECHAM6-AMIP performance

Autor: Irina Fast, Jin-Song von Storch, Dörthe Handorf, Klaus Dethloff, Eileen Hertwig, Thomas Krismer

Publikováno v: Climate Dynamics. 45:185-211

This study analyzes the effect of increasing horizontal resolution in the atmospheric model ECHAM6 on the simulated mean climate state and climate variability. For that purpose three AMIP-style simulations with the resolutions T63L95, T127L95, and T2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e02ff60c7f9633ac2c95ada0a78b4a8e
https://doi.org/10.1007/s00382-014-2396-x

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Wave Forcing of the Quasi-Biennial Oscillation in the Max Planck Institute Earth System Model

Autor: Marco Giorgetta, Thomas Krismer

Publikováno v: Journal of the Atmospheric Sciences

This study investigates the resolved wave forcing of the quasi-biennial oscillation (QBO) in the Max Planck Institute Earth System Model truncated at T63 with 95 vertical levels. The model, which parameterizes unresolved gravity waves, internally gen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa08effefd9da7a5218af3d76d17dfa4
https://doi.org/10.1175/jas-d-13-0310.1

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Seasonal aspects of the quasi‐biennial oscillation in the Max Planck Institute Earth System Model and ERA‐40

Autor: Thomas Krismer, Marco Giorgetta, Monika Esch

Publikováno v: Journal of Advances in Modeling Earth Systems
Journal of Advances in Modeling Earth Systems, Vol 5, Iss 2, Pp 406-421 (2013)

[1] This study investigates seasonal modulations of the quasi-biennial oscillation (QBO) of the tropical stratosphere. For this purpose, the Max Planck Institute Earth System Model (MPI-ESM), which internally generates a realistic QBO compared to the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d43494ca5db8f030086384e0802cb2b4
https://doi.org/10.1002/jame.20024

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A decade of energy and mass balance investigations on the glacier Kongsvegen, Svalbard

Autor: Florian Karner, Thomas Krismer, Friedrich Obleitner, W. Greuell, Jack Kohler

Publikováno v: Journal of Geophysical Research: Atmospheres. 118:3986-4000

[1] Kongsvegen is an Arctic glacier located in northwest Spitzbergen. We use meteorological observations made near the average equilibrium line of Kongsvegen during the decade 2001 to 2010 to drive a glacier energy and mass balance model. Average dai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::188993c58d4052ea63265d04e3f95e0a
https://doi.org/10.1029/2012jd018342

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Response of the middle atmosphere to anthropogenic and natural forcings in the CMIP5 simulations with the Max Planck Institute Earth system model

Autor: Stefan Kinne, Claudia Timmreck, Monika Esch, Georgiy L. Stenchikov, Hauke Schmidt, Thomas Krismer, M. Walz, Felix Bunzel, Lorenzo Tomassini, Marco Giorgetta, Sebastian Rast

Publikováno v: Journal of Advances in Modeling Earth Systems. 5:98-116

[1] The ECHAM6 atmospheric general circulation model is the atmosphere component of the Max Planck Institute Earth System Model (MPI-ESM) that is used in the Coupled Model Intercomparison Project Phase 5 (CMIP5) simulations. As ECHAM6 has its uppermo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::170b67eaae276800bc874f45e9caddfe
https://doi.org/10.1002/jame.20014

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The influence of the spectral truncation on the simulation of waves in the tropical stratosphere

Autor: Thomas Krismer, Jin-Song von Storch, Irina Fast, Marco Giorgetta

Publikováno v: Journal of the Atmospheric Sciences

Convectively triggered waves are the main driver of the tropical stratospheric circulation. In atmospheric models, the model’s resolution limits the length of the simulated wave spectrum. In this study, the authors compare the tropical tropospheric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5159884a6ef2645c1735bd46271e412a
https://hdl.handle.net/11858/00-001M-0000-0028-9C51-211858/00-001M-0000-0028-9C55-9

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The quasi-biennial oscillation in a warmer climate: sensitivity to different gravity wave parameterizations

Autor: Elisa Manzini, Thomas Krismer, Marco Giorgetta, Sebastian Schirber

Publikováno v: Climate Dynamics

In order to simulate the quasi-biennial oscillation (QBO) with a realistic period and amplitude, general circulation models commonly include parameterizations of small scale gravity waves (GW). In this work, we explore how different GW parameterizati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e9b1cee39bfc1bb976c5d542ac2872a
https://hdl.handle.net/11858/00-001M-0000-0027-D2B2-311858/00-001M-0000-0027-D2AE-F

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Kelvin and Rossby-gravity wave packets in the lower stratosphere of some high-top CMIP5 models

Autor: François Lott, Seiji Yukimoto, Jean-Philippe Duvel, Elisa Manzini, Marco Giorgetta, Steven C. Hardiman, Pauline Maury, Shingo Watanabe, Sébastien Denvil, N. Butchart, Chiara Cagnazzo, John Scinocca, Thomas Krismer

Publikováno v: Journal of Geophysical Research-Atmospheres
Journal of Geophysical Research: Atmospheres
Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2014, 119 (5), pp.2156-2173. ⟨10.1002/2013JD020797⟩
Journal of Geophysical Research. Atmospheres (Online) 119 (2014): 2156–2173. doi:10.1002/2013JD020797
info:cnr-pdr/source/autori:Lott F.; Denvil S.; Butchart N.; Cagnazzo C.; Giorgetta M.A.; Hardiman S.C.; Manzini E.; Krismer T.; Duvel J.-P.; Maury P.; Scinocca J.F.; Watanabe S.; Yukimoto S./titolo:Kelvin and Rossby-gravity wave packets in the lower stratosphere of some high-top CMIP5 models/doi:10.1002%2F2013JD020797/rivista:Journal of Geophysical Research. Atmospheres (Online)/anno:2014/pagina_da:2156/pagina_a:2173/intervallo_pagine:2156–2173/volume:119
Journal of Geophysical Research: Atmospheres, 2014, 119 (5), pp.2156-2173. ⟨10.1002/2013JD020797⟩

International audience; We analyze the stratospheric Kelvin and Rossby-gravity wave packets with periods of a few days in nine high-top (i.e., with stratosphere) models of the fifth Coupled Model Intercomparison Project (CMIP5). These models simulate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ede353ea7b1e390ed29e35f1cdba9bf
https://hdl.handle.net/11858/00-001M-0000-0019-11A6-911858/00-001M-0000-002D-EEFE-5

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Kelvin and Rossby gravity wave packets in the lower stratosphere of CMIP5 models

Autor: Francois Lott (1), Sebastien Denvil (2), Neal Butchart (3), Chiara Cagnazzo (4), Marco Giorgetta (5), Steven Hardiman (3), Elisa Manzini (5), Thomas Krismer (5), Jean-Philippe Duvel (1), Pauline Maury (1), John Scinocca (6), Shingo Watanabe (7), Seiji Yukimoto (8)

Publikováno v: EGU, 2014
info:cnr-pdr/source/autori:Francois Lott (1), Sebastien Denvil (2), Neal Butchart (3), Chiara Cagnazzo (4), Marco Giorgetta (5), Steven Hardiman (3), Elisa Manzini (5), Thomas Krismer (5), Jean-Philippe Duvel (1), Pauline Maury (1), John Scinocca (6), Shingo Watanabe (7), and Seiji Yukimoto (8)/congresso_nome:EGU/congresso_luogo:/congresso_data:2014/anno:2014/pagina_da:/pagina_a:/intervallo_pagine

We analyse the stratospheric Kelvin and Rossby-gravity wave packets with periods of a few days in nine high-top (i.e. with stratosphere) models of the fifth Coupled Model Intercomparison Project (CMIP5). These models simulate realistic aspects of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::20e3cb32097c9495d8390e254aa96d76
http://www.cnr.it/prodotto/i/318347

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