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  • 1
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    Chapter 8 Storylining Climes (2023)
    Taylor & Francis | Storying Multipolar Climes of the Himalaya, Andes and Arctic | Routledge
    Details
    Publication Date: 2024-04-14
    Description: Modern climate science aims to explain and predict climate based on spatio-temporally invariant laws of nature. This physics-based mindset largely displaced a more contingent, historical approach to climate. However, what is being called the “storyline” approach to climate science has recently been gaining traction. Although storylines are well-established vehicles in many scholarly disciplines, their use in physical climate science is radical insofar as they immediately raise questions such as “Who tells the stories?” and “Whose stories get told?” Such a personalization of climate science aligns with the concept of clime. This chapter reflects on various traditions in the hitherto remotely related disciplines of climate science and anthropology, and experiments with integrating different forms of knowledge in the sweetgrass-braiding fashion. Drawing on two illustrations of natural disasters, in Nepal and Alaska, four potential threads for a productive dialogue between climate science and the environmental humanities are identified: (i) time; (ii) agency and intentionality; (iii) chaos, both temporal and spatial; and (iv) dichotomies in ways of knowing, most notably between descriptive and explanatory traditions. Through the device of contingency and by enlivening ethnography, it becomes possible to storyline climes.
    Keywords: Environmental humanities; Climate science; Anthropology; Himalayas; Andes; Arctic; Climate change ; thema EDItEUR::W Lifestyle, Hobbies and Leisure::WN Nature and the natural world: general interest::WNW The Earth: natural history: general interest ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RN The environment::RNC Applied ecology ; thema EDItEUR::R Earth Sciences, Geography, Environment, Planning::RN The environment::RNP Pollution and threats to the environment::RNPG Climate change ; thema EDItEUR::W Lifestyle, Hobbies and Leisure::WN Nature and the natural world: general interest
    Language: English
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  • 2
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    Nonlinear response of mid-latitude weather to the changing Arctic (2016)
    In:  EPIC3NATURE CLIMATE CHANGE, 6, pp. 992-999
    Details
    Publication Date: 2016-12-12
    Description: Are continuing changes in the Arctic influencing wind patterns and the occurrence of extreme weather events in northern midlatitudes? The chaotic nature of atmospheric circulation precludes easy answers. The topic is a major science challenge, as continued Arctic temperature increases are an inevitable aspect of anthropogenic climate change. We propose a perspective that rejects simple cause-and-effect pathways and notes diagnostic challenges in interpreting atmospheric dynamics. We present a way forward based on understanding multiple processes that lead to uncertainties in Arctic and mid-latitude weather and climate linkages. We emphasize community coordination for both scientific progress and communication to a broader public.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
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  • 3
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    Climate model biases in jet streams, blocking and storm tracks resulting from missing orographic drag (2016)
    In:  EPIC3Geophysical Research Letters, 43(13), pp. 7231-7240, ISSN: 00948276
    Details
    Publication Date: 2016-12-14
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 4
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    Impacts of parameterized orographic drag on the Northern Hemisphere winter circulation (2015)
    In:  EPIC3Journal of Advances in Modeling Earth Systems, pp. n/a-n/a, ISSN: 19422466
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    Publication Date: 2016-04-13
    Repository Name: EPIC Alfred Wegener Institut
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  • 5
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    Impacts of orography on large-scale atmospheric circulation (2019)
    Springer Science and Business Media LLC
    In:  EPIC3npj Climate and Atmospheric Science, Springer Science and Business Media LLC, 2(1), pp. 10-10, ISSN: 2397-3722
    Details
    Publication Date: 2023-06-21
    Description: Some of the largest and most persistent circulation errors in global numerical weather prediction and climate models are attributable to the inadequate representation of the impacts of orography on the atmospheric flow. Existing parametrization approaches attempting to account for unresolved orographic processes, such as turbulent form drag, low-level flow blocking or mountain waves, have been successful to some extent. They capture the basic impacts of the unresolved orography on atmospheric circulation in a qualitatively correct way and have led to significant progress in both numerical weather prediction and climate modelling. These approaches, however, have apparent limitations and inadequacies due to poor observational evidence, insufficient fundamental knowledge and an ambiguous separation between resolved and unresolved orographic scales and between different orographic processes. Numerical weather prediction and climate modelling has advanced to a stage where these inadequacies have become critical and hamper progress by limiting predictive skill on a wide range of spatial and temporal scales. More physically based approaches are needed to quantify the relative importance of apparently disparate orographic processes and to account for their combined effects in a rational and accurate way in numerical models. We argue that, thanks to recent advances, significant progress can be made by combining theoretical approaches with observations, inverse modelling techniques and high-resolution and idealized numerical simulations.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 6
    Electronic Resource
    Electronic Resource
    On the existence of two-dimensional Euler flows satisfying energy-Casimir stability criteria (2000)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 12 (2000), S. 727-730 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The energy-Casimir stability method, also known as the Arnold stability method, has been widely used in fluid dynamical applications to derive sufficient conditions for nonlinear stability. The most commonly studied system is two-dimensional Euler flow. It is shown that the set of two-dimensional Euler flows satisfying the energy-Casimir stability criteria is empty for two important cases: (i) domains having the topology of the sphere, and (ii) simply-connected bounded domains with zero net vorticity. The results apply to both the first and the second of Arnold's stability theorems. In the spirit of Andrews' theorem, this puts a further limitation on the applicability of the method. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870280
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  • 7
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    Impact of the Mesoscale Range on Error Growth and the Limits to Atmospheric Predictability (2020)
    American Meteorological Society
    Details
    Publication Date: 2020-10-20
    Description: Global numerical weather prediction (NWP) models have begun to resolve the mesoscale k−5/3 range of the energy spectrum, which is known to impose an inherently finite range of deterministic predictability per se as errors develop more rapidly on these scales than on the larger scales. However, the dynamics of these errors under the influence of the synoptic-scale k−3 range is little studied. Within a perfect-model context, the present work examines the error growth behavior under such a hybrid spectrum in Lorenz’s original model of 1969, and in a series of identical-twin perturbation experiments using an idealized two-dimensional barotropic turbulence model at a range of resolutions. With the typical resolution of today’s global NWP ensembles, error growth remains largely uniform across scales. The theoretically expected fast error growth characteristic of a k−5/3 spectrum is seen to be largely suppressed in the first decade of the mesoscale range by the synoptic-scale k−3 range. However, it emerges once models become fully able to resolve features on something like a 20-km scale, which corresponds to a grid resolution on the order of a few kilometers.
    Print ISSN: 0022-4928
    Electronic ISSN: 1520-0469
    Topics: Geography , Geosciences , Physics
    Published by American Meteorological Society
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  • 8
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    The improbable clouds at the edge of the atmosphere (2018)
    American Institute of Physics
    Details
    Publication Date: 2018-06-01
    Print ISSN: 0031-9228
    Electronic ISSN: 1945-0699
    Topics: Physics
    Published by American Institute of Physics
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  • 9
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    Time-evolving sea-surface warming patterns modulate the climate change response of subtropical precipitation over land (2020)
    National Academy of Sciences
    Details
    Publication Date: 2020-02-18
    Description: Greenhouse gas (GHG) emissions affect precipitation worldwide. The response is commonly described by two timescales linked to different processes: a rapid adjustment to radiative forcing, followed by a slower response to surface warming. However, additional timescales exist in the surface-warming response, tied to the time evolution of the sea-surface-temperature (SST) response. Here, we show that in climate model projections, the rapid adjustment and surface mean warming are insufficient to explain the time evolution of the hydro-climate response in three key Mediterranean-like areas—namely, California, Chile, and the Mediterranean. The time evolution of those responses critically depends on distinct shifts in the regional atmospheric circulation associated with the existence of distinct fast and slow SST warming patterns. As a result, Mediterranean and Chilean drying are in quasiequilibrium with GHG concentrations, meaning that the drying will not continue after GHG concentrations are stabilized, whereas California wetting will largely emerge only after GHG concentrations are stabilized. The rapid adjustment contributes to a reduction in precipitation, but has a limited impact on the balance between precipitation and evaporation. In these Mediterranean-like regions, future hydro-climate–related impacts will be substantially modulated by the time evolution of the pattern of SST warming that is realized in the real world.
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 10
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    A Multiscale Asymptotic Theory of Extratropical Wave–Mean Flow Interaction (2018)
    American Meteorological Society
    Details
    Publication Date: 2018-05-18
    Description: Multiscale asymptotic methods are used to derive wave activity equations for planetary- and synoptic-scale eddies and their interactions with a zonal mean flow. The eddies are assumed to be of small amplitude, and the synoptic-scale zonal and meridional length scales are taken to be equal. Under these assumptions, the zonal-mean and planetary-scale dynamics are planetary geostrophic (i.e., dominated by vortex stretching), and the interaction between planetary- and synoptic-scale eddies occurs only through the zonal mean flow or through diabatic processes. Planetary-scale heat fluxes are shown to enter the angular momentum budget through meridional mass redistribution. After averaging over synoptic length and time scales, momentum fluxes disappear from the synoptic-scale wave activity equation while synoptic-scale heat fluxes disappear from the baroclinicity equation, leaving planetary-scale heat fluxes as the only adiabatic term coupling the baroclinic and barotropic components of the zonal mean flow. In the special case of weak planetary waves, the decoupling between the baroclinic and barotropic parts of the flow is complete with momentum fluxes driving the barotropic zonal mean flow, heat fluxes driving the wave activity, and diabatic processes driving baroclinicity. These results help explain the apparent decoupling between the baroclinic and barotropic components of flow variability recently identified in observations and may provide a means of better understanding the link between thermodynamic and dynamic aspects of climate variability and change.
    Print ISSN: 0022-4928
    Electronic ISSN: 1520-0469
    Topics: Geography , Geosciences , Physics
    Published by American Meteorological Society
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