Differences in climate change impacts between weather patterns: possible effects on spatial heterogeneous changes in future extreme rainfall

Ohba, Masamichi; Sugimoto, Soichiro

doi:10.1007/s00382-018-4374-1

Cited by 62 publications

(40 citation statements)

References 46 publications

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“…Even when there are studies that have investigated the atmospheric circulation near the study site [10,52], as far as we know, no efforts have been made to understand these processes from a multiscale perspective. Further, as it is widely known that climate change can affect wind patterns [53][54][55], and that in the study site the reduction of the zonal wind has decreased the potential evaporation by 10%-20% compared to the second half of the twentieth century [11], it is important to ensure a continuous monitoring in order to quantify evaporation changes that will modify the water balance and biogeochemical processes of this high Andean wetland.…”

Section: Discussionmentioning

confidence: 99%

E-DATA: A Comprehensive Field Campaign to Investigate Evaporation Enhanced by Advection in the Hyper-Arid Altiplano

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et al. 2020

Water

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In the endorheic basins of the Altiplano, water is crucial for sustaining unique ecological habitats. Here, the wetlands act as highly localized evaporative environments, and little is known about the processes that control evaporation. Understanding evaporation in the Altiplano is challenging because these environments are immersed in a complex topography surrounded by desert and are affected by atmospheric circulations at various spatial scales. Also, these environments may be subject to evaporation enhancement events as the result of dry air advection. To better characterize evaporation processes in the Altiplano, the novel Evaporation caused by Dry Air Transport over the Atacama Desert (E-DATA) field campaign was designed and tested at the Salar del Huasco, Chile. The E-DATA combines surface and airborne measurements to understand the evaporation dynamics over heterogeneous surfaces, with the main emphasis on the open water evaporation. The weather and research forecasting model was used for planning the instruments installation strategy to understand how large-scale air flow affects evaporation. Instrumentation deployed included: meteorological stations, eddy covariance systems, scintillometers, radiosondes and an unmanned aerial vehicle, and fiber-optic distributed temperature sensing. Additional water quality and CO2 fluxes measurements were carried out to identify the link between meteorological conditions and the biochemical dynamics of Salar del Huasco. Our first results show that, in the study site, evaporation is driven by processes occurring at multiple spatial and temporal scales and that, even in the case of available water and energy, evaporation is triggered by mechanical turbulence induced by wind.

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Section: Discussionmentioning

confidence: 99%

E-DATA: A Comprehensive Field Campaign to Investigate Evaporation Enhanced by Advection in the Hyper-Arid Altiplano

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Lobos

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et al. 2020

Water

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“…The Database for Policy Decision‐Making for Future Climate Change (d4PDF) is useful not only for future projections in extreme events (Kamae et al, ; Kawase et al, ; Mizuta et al, ; Ohba & Sugimoto, ; Osakada & Nakakita, ; Yoshida et al, ) but also for the attribution of extreme events to global warming in the twentieth century (Imada et al, ; Mizuta et al, ; Shiogama et al, ). The d4PDF includes both global climate simulations with approximately 60‐km grid spacings, which are conducted by the Meteorological Research Institute Atmospheric General Circulation Model version 3.2 (MRI‐AGCM3.2; Mizuta et al, ), and regional climate simulations with 20‐km grid spacing, which are conducted by the Non‐Hydrostatic Regional Climate Model (NHRCM; Sasaki et al, ).…”

Section: Simulation Design and Observational Datamentioning

confidence: 99%

Contribution of Historical Global Warming to Local‐Scale Heavy Precipitation in Western Japan Estimated by Large Ensemble High‐Resolution Simulations

et al. 2019

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Large ensemble pairs of high‐resolution global and regional climate simulations, which are composed of 100 members of 60 years each, make it possible to attribute changes in local‐scale heavy precipitation to historical global warming. Mountain ranges separate local climates and can modulate the impact of global warming on heavy precipitation. In the summer, Japan's Kyushu region, with mountain ranges approximately 200‐km long from south to north, receives large amounts of precipitation. Over western Kyushu, the monthly maximum daily precipitation (maxPrdaily) in July increases due to historical global warming, while the maxPrdaily is unchanged over eastern Kyushu. Moisture advection and convergence due to stationary weather fronts are primary factors causing heavy precipitation in western Kyushu and moistening due to warming increases the maxPrdaily. On the other hand, typhoons heading to Kyushu are related to heavy precipitation over eastern Kyushu. The changes in typhoons heading to Kyushu result in unchanged maxPrdaily in eastern Kyushu. Our results suggest that local‐scale mountain ranges can change synoptic‐scale disturbances causing heavy precipitation and modulate the impact of historical global warming on heavy precipitation across mountain ranges.

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“…We selected a map size based on sensitivity tests. The SOM projection process is summarized in [28]; here we trained a SOM from either the present and future climate simulations. When used in other studies, this approach is often termed a "master SOM" [40,41].…”

Section: Self-organizing Mapsmentioning

confidence: 99%

“…Future changes in East Asian climates are particularly difficult to project since they depend on simulated sea surface temperature (SST) anomalies in the Indo-Pacific sector [23][24][25] that are not fundamentally understood and strong model diversity still exists both for the future mean climate [26] and its variations [27,28]. Ongoing research should push these boundaries to better understand future changes in wind energy resources and their associated dynamic mechanisms.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Global Warming on Wind Energy Resources and Ramp Events in Japan

Ohba¹

2019

Atmosphere

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This study investigated the impact of global warming on Japanese wind energy resources and their short-term variations using the large ensemble d4PDF dataset, which consists of dynamically downscaled historical and +4K future climate projections. The capacity factor under the future and present climate was estimated from an idealized power curve based on hourly near-surface wind speeds. The +4K warming future climate projections showed significant changes in wind energy resources that varied both regionally and seasonally. The wind energy potential was projected to slightly increase (decrease) from winter to spring over northern (southern) Japan and decrease from summer to autumn over most of Japan. The projected annual production decreased by about ~5% over Japan in response to climate change. The frequency of wind ramp events also decreased in the latter seasons. The relationship to synoptic weather was investigated using self-organizing maps, whereby weather patterns (WPs) over the region in the present and future +4K climate were classified for a two-dimensional lattice. Future probabilistic projections of WPs under the global warming scenario showed both increases and decreases in the frequency of different WPs, with corresponding advantages and disadvantages for wind power generation with regard to future changes in capacity factors in Japan. The importance of these frequency changes on the total change was further assessed by separating the dynamical and thermodynamic contributions.

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Differences in climate change impacts between weather patterns: possible effects on spatial heterogeneous changes in future extreme rainfall

Cited by 62 publications

References 46 publications

E-DATA: A Comprehensive Field Campaign to Investigate Evaporation Enhanced by Advection in the Hyper-Arid Altiplano

E-DATA: A Comprehensive Field Campaign to Investigate Evaporation Enhanced by Advection in the Hyper-Arid Altiplano

Contribution of Historical Global Warming to Local‐Scale Heavy Precipitation in Western Japan Estimated by Large Ensemble High‐Resolution Simulations

The Impact of Global Warming on Wind Energy Resources and Ramp Events in Japan

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