Zobrazeno 1 - 10
of 986
pro vyhledávání: '"D. Notz"'
Publikováno v:
The Cryosphere, Vol 18, Pp 2473-2486 (2024)
The net Arctic sea-ice area (SIA) can be estimated from the sea-ice concentration (SIC) by passive microwave measurements from satellites. To be a truly useful metric, for example of the sensitivity of the Arctic sea-ice cover to global warming, we n
Externí odkaz:
https://doaj.org/article/cf11118868ce41c6a0fd646dff0b68a0
Publikováno v:
The Cryosphere, Vol 17, Pp 2563-2583 (2023)
With progressing global warming, snowfall in Antarctica is expected to increase, which could counteract or even temporarily overcompensate increased ice-sheet mass losses caused by increased ice discharge and melting. For sea-level projections it is
Externí odkaz:
https://doaj.org/article/31bf3893d4924e9db9f12222d0be8876
Autor:
P. de Vrese, G. Georgievski, J. F. Gonzalez Rouco, D. Notz, T. Stacke, N. J. Steinert, S. Wilkenskjeld, V. Brovkin
Publikováno v:
The Cryosphere, Vol 17, Pp 2095-2118 (2023)
The current generation of Earth system models exhibits large inter-model differences in the simulated climate of the Arctic and subarctic zone, with differences in model structure and parametrizations being one of the main sources of uncertainty. One
Externí odkaz:
https://doaj.org/article/54ac9c3178cc4875a9b3e479ff436cd1
Publikováno v:
The Cryosphere, Vol 16, Pp 3235-3248 (2022)
Seasonal transitions in Arctic sea ice, such as the melt onset, have been found to be useful metrics for evaluating sea ice in climate models against observations. However, comparisons of melt onset dates between climate models and satellite observat
Externí odkaz:
https://doaj.org/article/0f2b9be061064fc98b20e98fa7d3658c
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 4891-4908 (2021)
We investigate the impact of three different parameterizations of ice–ocean heat exchange on modeled sea ice thickness, sea ice concentration, and water masses. These three parameterizations are (1) an ice bath assumption with the ocean temperature
Externí odkaz:
https://doaj.org/article/f379432aef6b47fbbc6f6922ab520062
Autor:
M. Thomas, J. France, O. Crabeck, B. Hall, V. Hof, D. Notz, T. Rampai, L. Riemenschneider, O. J. Tooth, M. Tranter, J. Kaiser
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 1833-1849 (2021)
Sea ice is difficult, expensive, and potentially dangerous to observe in nature. The remoteness of the Arctic Ocean and Southern Ocean complicates sampling logistics, while the heterogeneous nature of sea ice and rapidly changing environmental condit
Externí odkaz:
https://doaj.org/article/9ae30dbf5e354fb3b8fb392b81d40828
Autor:
J. H. Jungclaus, S. J. Lorenz, H. Schmidt, V. Brovkin, N. Brüggemann, F. Chegini, T. Crüger, P. De‐Vrese, V. Gayler, M. A. Giorgetta, O. Gutjahr, H. Haak, S. Hagemann, M. Hanke, T. Ilyina, P. Korn, J. Kröger, L. Linardakis, C. Mehlmann, U. Mikolajewicz, W. A. Müller, J. E. M. S. Nabel, D. Notz, H. Pohlmann, D. A. Putrasahan, T. Raddatz, L. Ramme, R. Redler, C. H. Reick, T. Riddick, T. Sam, R. Schneck, R. Schnur, M. Schupfner, J.‐S. vonStorch, F. Wachsmann, K.‐H. Wieners, F. Ziemen, B. Stevens, J. Marotzke, M. Claussen
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 14, Iss 4, Pp n/a-n/a (2022)
Abstract This work documents the ICON‐Earth System Model (ICON‐ESM V1.0), the first coupled model based on the ICON (ICOsahedral Non‐hydrostatic) framework with its unstructured, icosahedral grid concept. The ICON‐A atmosphere uses a nonhydro
Externí odkaz:
https://doaj.org/article/d4a9fd1ac03347ca8b5319a9e4b74f16
Publikováno v:
The Cryosphere, Vol 14, Pp 2469-2493 (2020)
We report on results of a systematic inter-comparison of 10 global sea-ice concentration (SIC) data products at 12.5 to 50.0 km grid resolution from satellite passive microwave (PMW) observations for the Arctic during summer. The products are compa
Externí odkaz:
https://doaj.org/article/790de1c7d8494609becb308f0a070f9f
Publikováno v:
The Cryosphere, Vol 14, Pp 2387-2407 (2020)
The observational uncertainty in sea ice concentration estimates from remotely sensed passive microwave brightness temperatures is a challenge for reliable climate model evaluation and initialization. To address this challenge, we introduce a new too
Externí odkaz:
https://doaj.org/article/7354c325b6df434bbba5669d3bd80d7a
Publikováno v:
The Cryosphere, Vol 14, Pp 2369-2386 (2020)
We explore the feasibility of an observation operator producing passive microwave brightness temperatures for sea ice at a frequency of 6.9 GHz. We investigate the influence of simplifying assumptions for the representation of sea ice vertical prop
Externí odkaz:
https://doaj.org/article/9191f886969a4b50bea3e233f39d0c31