Results 151 to 160 of about 61,146 (187)

Circular and Cylindrical Hotspots Detection for Spatial and Spatio-temporal Data

2019 Twelfth International Conference on Contemporary Computing (IC3), 2019
Developments in the field of information technology are opening ways to automate many real-life applications by analyzing and solving the problems in more effective way. These real-life applications often required to explore/analyze huge demographic data of social relevance, viz. demographic details of population, crime, education, disease, etc.
Shubham Agarwal, Lavish Yadav, Manish K Thakur   +2 more
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Propagation of soil moisture droughts in a hotspot region: Spatial pattern and temporal trajectory

Journal of Hydrology, 2021
Abstract Droughts evolve in space and time simultaneously, but its spatio-temporal propagation remains less explored. As one of the hotspot regions in global soil moisture (SM) drought, the Southeastern Asia supports billions of population and trillions of dollars in gross domestic product.
Yongwei Liu, Yuanbo Liu, Wen Wang, Han Zhou   +3 more
openaire   +1 more source

A slot assignment algorithm for exploiting temporal-spatial diversity in wireless hotspots

IET Conference on Wireless, Mobile and Sensor Networks 2007 (CCWMSN07), 2007
This paper presents a distributed slot assignment algorithm from the angle of temporal-spatial diversity of concurrent transmissions to achieve high capacity in wireless hotspots. The unique characteristics of wireless hotspots, such as multiple interference links and many flows, are the key limitations in the existing wireless network technology ...
null Bo Chen, null Shoubao Yang, null Da Teng, null Wen Ji   +3 more
openaire   +1 more source

Visualizing Traffic Accident Hotspots Based on Spatial-Temporal Network Kernel Density Estimation

Proceedings of the 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2017
Understanding where traffic accidents occur is crucial for improving road safety and proper traffic enforcement allocation. One of the most common methods of analyzing traffic accidents is spatial hotspot detection. Existing hotspot detection methods, e.g., spatial scan statistics, spatial and spatiotemporal kernel density estimation, mostly focus on ...
Benjamin Romano, Zhe Jiang
openaire   +1 more source

Spatial and temporal variability in Hawaiian hotspot volcanism induced by small-scale convection

Nature Geoscience, 2011
be explained by the classical mantle plume concept. Here we present a numerical model of mantle plume upwelling beneath Hawaii. We find that small-scale convection in the ambient mantle can erode the base of the lithosphere, creating a washboard topography on the underside of the plate.
Maxim D. Ballmer, Garrett Ito, Jeroen van Hunen, Paul J. Tackley   +3 more
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Spatial and Temporal Hotspot Analysis of COVID-19 in Toronto

ABSTRACTThe COVID-19 pandemic in Toronto, Canada was unequal for its 2.7 million residents. As a dynamic pandemic, COVID-19 trends might have also varied over space and time. We conducted a spatiotemporal hotspot analysis of COVID-19 over the first four major waves of COVID-19 using three different applications of Moran’s I to highlight the variable ...
Afia Amoako, Mabel Carabali, Erjia Ge, Ashleigh R Tuite, David N Fisman   +4 more
openaire   +1 more source

Spatial–Temporal Variation of Bird Roadkill Hotspots in the Brazilian Semi‐Arid Region

Austral Ecology
ABSTRACT Birds are vulnerable to roadkill on highways. Understanding which factors may be associated with bird roadkill and the formation of roadkill hotspots is crucial for informing evidence‐based mitigation measures.
Raul Santos, Sofia Oliveira Cabral, Fernando Ascensão, Cecilia Calabuig   +3 more
openaire   +1 more source

Challenges to incorporating spatially and temporally explicit phenomena (hotspots and hot moments) in denitrification models

Biogeochemistry, 2009
Denitrification, the anaerobic reduction of nitrogen oxides to nitrogenous gases, is an extremely challenging process to measure and model. Much of this challenge arises from the fact that small areas (hotspots) and brief periods (hot moments) frequently account for a high percentage of the denitrification activity that occurs in both terrestrial and ...
Groffman, P. M., Butterbach-Bahl, K., Fulweiler, R. W., Gold, A. J., Morse, J. L., Stander, E. K., Tague, C., Tonitto, C., Vidon, P.   +8 more
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Biogeochemical hotspots: temporal and spatial scaling of the impact of freshwater mussels on ecosystem function

Freshwater Biology, 2014
Summary In streams, the creation of nutrient‐transformation hotspots by aggregated organisms may have heterogeneous and strong cumulative influences on stream nutrient dynamics. Here, we examine the potential for aggregations of freshwater mussels to create such hotspots.
Carla L. Atkinson, Caryn C. Vaughn
openaire   +1 more source

Mapping Tornado Hotspots in the U.S.: Spatial and Temporal Analysis Across the U.S.

ACADEMIC JOURNAL ON SCIENCE, TECHNOLOGY, ENGINEERING & MATHEMATICS EDUCATION
Tornadoes rank among the most damaging weather events in the US. They put lives at risk, wreck infrastructure, and upset economic systems. This study examines data from 1950 to 2022 using Geographic Information Systems (GIS) to uncover tornado hotspots, pinpoint high-risk areas, and grasp why some regions face bigger threats.
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