1,782,770 research outputs found
The COST 2100 MIMO channel model
Get PDFThe COST 2100 channel model is a geometry-based stochastic channel model (GSCM) that can reproduce the stochastic properties of multi-link Multiple-Input Mulitple-Output (MIMO) channels over time, frequency and space. By contrast to other popular GSCMs, the COST 2100 approach is generic and flexible, making it suitable to model multi-user or distributed MIMO scenarios. In this paper a concise overview of the COST 2100 channel model is presented. Main concepts are described, together with useful implementation guidelines. Recent developments, including dense multipath components, polarization and multi-link aspects are also discussed
MITgcm_SeaIce_GFDL_CM3_RCP85_2006-2100
No full textMonthly average sea ice and snow conditions in the Canadian Arctic Archipelago 2006-2100 under climate warming scenario RCP85. Model output in netcdf files, time steps of 1 month starting on January 2006
Historical and Projected Fire Weather Variables 1972-2100
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Historical and Projected Fire Weather Variables 1972-2100
This dataset includes the bias corrected surface elements produced from the Fire Weather Climatology for Victoria project documented in the reports by Brown et al (2015; 2016) and the journal paper Brown et al (2016). The current version of the historical data is referred to as VicClim5. Additionally, there are 32 levels of upper atmosphere weather variables including temperature, atmospheric moisture, wind and other common meteorological variables.
Finally, projected fire weather variables from twelve Global Climate Models were used to statistically downscale these outputs at 4km spatial resolution using the Victoria fire weather climatology as the historical base period. Together this provides a climatology and projected datasets for the period 1972 to 2100. See the two journal articles for details on the projected datasets (Clarke et al. 2022, Parts 1 and 2 attached).
Please see the metadata files, reports, and journal articles for the details of the construction and applicability of the data.
Three data outputs are available:
Historical surface hourly fire weather 1972-2020 at 4km spatial resolution;
Upper air variables of historical fire weather variables 1972-2020 (netCDF formatted);
Climate change projections through 2100 of surface fire weather.
For questions or comments, please contact:
Sarah Harris, [email protected] and Tim Brown, [email protected]
Acknowledge the funding and support provided for the various projects to develop these datasets including: Bushfire and Natural Hazards CRC, the Department of Environment, Land, Water and Planning, Parks Victoria, and the Victorian Country Fire Authority through the Safer Together Program, a Victorian Government initiative.</p
Convection-permitting downscaling of climate change 1950-2100
No full textWe provide a dynamically downscaled and bias corrected dataset at 3 km horizontal resolution over the U.S. Midwest, covering the period 1951-2100 under historical and RCP8.5 conditions. Data is produced using a regional model (WRF 3.9), driven by NCEP/NCAR reanalysis 1 and CESM1 simulations designed for downscaling with WRF. Data provided includes temperature (T2) and precipitation (PRECIP). This is associated with Lauer et al. (2022), doi:XXXX.Indiana University Environmental Resilience Institut
Climate velocity and land-use instability 1971-2100
No full textDatasets contains (a) Raster layers of climate and land-use velocity during 1971-2000, 2021-2050, and 2071-2100. (see Asamoah et al. Climate and land use changes reduce the benefits of terrestrial protected areas for detailed methodology). Spatial
resolution: 24 km in a Mollweide projection (ESRI: 54009).(b) Microsoft excel spreadsheets and R codes for visualizing some of the plots in Asamoah et al.</div
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
FLOAT HOLLAND 2100: Role of maritime to build sustainable floating ecosystems
No full textThe Netherlands is inextricably linked to a network of water, polders, and dykes. Recent climatic and anthropogenic transitions pose several threats to destabilize this balance including the rise in sea level, extreme weather, and floods which could drastically change the landscape of South Holland as we know it by 2100. With this potentially unstable future in context, the demand for space and houses in the Netherlands rises consistently. However, the combination of these issues presents an opportunity to restore the balance and linkages of Dutch ways with water. The future of the Maritime manufacturing industry can act as an adhesive to sustain these links by drawing on transitions around water at a global as well as local scale. Hence, the project intends to investigate the changes in the role of water systems in 2100 and how the Maritime manufacturing sector can steer it to address future spatial and climatic adversities.In 2100, we envision the Maritime Manufacturing industry to expand its role to facilitate the adaptivity of the natural, social and technological landscape of South Holland, using water as the primary medium. We intend to introduce a radical transition by planning for diversified spaces on and for water, serving both an economic prospect as well as increasing consciousness of its role within society. The vision addresses 3 major transitioning landscapes (wet peatlands, salt marshes, and water bodies) to develop systemic strategies and plan spaces by making optimum use of products by the Maritime industry. The vision opens up several areas of investigation around the 2100 ‘Portscape’ including the scope of circularity in the shipbuilding/ship-recycling industry, rethinking material-flows, and transitions in socio-economic structure in context to new social environments.AR2U086 R&D Studio – Spatial Strategies for the Global MetropolisArchitecture, Urbanism and Building Sciences | Urbanis
Projected pH reductions by 2100 might put deep North Atlantic biodiversity at risk
Get PDFThis study aims to evaluate the potential for impacts of ocean acidification on North Atlantic deep-sea ecosystems in response to IPCC AR5 Representative Concentration Pathways (RCPs). Deep-sea biota is likely highly vulnerable to changes in seawater chemistry and sensitive to moderate excursions in pH. Here we show, from seven fully coupled Earth system models, that for three out of four RCPs over 17% of the seafloor area below 500 m depth in the North Atlantic sector will experience pH reductions exceeding −0.2 units by 2100. Increased stratification in response to climate change partially alleviates the impact of ocean acidification on deep benthic environments. We report on major pH reductions over the deep North Atlantic seafloor (depth >500 m) and at important deep-sea features, such as seamounts and canyons. By 2100, and under the high CO2 scenario RCP8.5, pH reductions exceeding −0.2 (−0.3) units are projected in close to 23% (~15%) of North Atlantic deep-sea canyons and ~8% (3%) of seamounts – including seamounts proposed as sites of marine protected areas. The spatial pattern of impacts reflects the depth of the pH perturbation and does not scale linearly with atmospheric CO2 concentration. Impacts may cause negative changes of the same magnitude or exceeding the current target of 10% of preservation of marine biomes set by the convention on biological diversity, implying that ocean acidification may offset benefits from conservation/management strategies relying on the regulation of resource exploitation
Climability 2100: Towards a livable urban microclimate
No full textWith a growing world population and changing climate conditions, cities have many problems to face in the future. The changing climate can affect the way we appropriate urban outdoor spaces which will affect the social sustainability in the city, so adaptation strategies in cities are necessary. Urban designers should create conditions to maintain the quality of life in these spaces and therefore the question is asked: “How can urban design improve the urban microclimate of- and (temporary) appropriation in urban outdoor spaces to make Milan sustainable towards 2100? This thesis is in search of urban design solutions for a social- and environmentally sustainable development of cities in the future. To achieve this the thesis will elaborate at first on temporary appropriation and the guidelines that urban designers should take into account to create (a) pleasant walkability, places for staying and soft edges. Secondly, it will elaborate on urban microclimate and it’s guidelines. Thirdly, and most importantly, the relations between appropriation and urban microclimate will be explained. Through a strong analysis of the theoretical subjects and an analysis of Milan as a case study a vision and design strategy is developed. On different spatial scales, the projects show the opportunities and necessary actions that should be taken to create a sustainable living environment towards 2100. Design methods are used to research how urban designers can make the spatial translation of the theoretical guidelines and these solutions are shown in a handbook called: “Climability solutions for urban design”. These solutions have been applied to multiple project locations in Milan where is shown how the solutions work, who is involved and which necessary actions are needed. After all, to create a sustainable environment towards 2100 interventions on different scale levels should be designed with great attention to the urban microclimate and appropriation of urban outdoor spaces. Designers should be more climate aware and should integrate choice in their design where people should have many opportunities to appropriate the space and to choose a microclimate that is pleasant for them. This research can be extended by site visits with interviews of residents and professionals in the fields of social- and environmental sustainability. Moreover, more extensive use of design tools, like ENVI-met, will give more insight into the design of urban microclimate and will improve the design ideas.Architecture, Urbanism and Building Science
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