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- Du, J., et al.
(author)
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Storm runoff simulation based on the spatially distributed runoff curve number and time variant routing methods
- 2007
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In: Methodology in Hydrology. - Wallingford, England : IAHS. - 9781901502930 ; , s. 186-194
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Book chapter (other academic/artistic)abstract
- In this study, a GIS-based, simple and easily performed modelling approach was proposed to simulate storm runoff response processes with consideration of spatial and temporal variability of runoff generation and flow routing through the hillslope and river network. The watershed was discretized into grid cells, and the river network was delineated from the DEM by use of GIS. In the modelling approach, the US Department of Agriculture Soil Conservation Service (SCS) curve number (CN) method in its differential form was used to calculate surface runoff (or excess rainfall) for each grid cell. The surface runoff was then routed to the watershed outlet using an improved spatially distributed travel time method. The approach was applied to simulate eight storm runoff events in the Jiaokou Reservoir watershed, a sub-basin of the Yongjiang River basin in southeast China. The results showed that the proposed approach predicted the runoff processes with an average efficiency of 0.94.
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- Walker, Donald A., et al.
(author)
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Cumulative Effects of Rapid Land-Cover and Land-Use Changes on the Yamal Peninsula, Russia
- 2011
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In: Eurasian Arctic Land Cover and Land Use in a Changing Climate. - New York : Springer Netherlands. - 9789048191178 - 9789048191185 ; , s. 207-236
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Book chapter (other academic/artistic)abstract
- The Yamal Peninsula in northwest Siberia is undergoing some of the most rapid land-cover and land-use changes in the Arctic due to a combination of gas development, reindeer herding, and climate change. Unusual geological conditions (nutrient-poor sands, massive ground ice and extensive landslides) exacerbate the impacts. These changes will likely increase markedly as transportation corridors are built to transport the gas to market. Understanding the nature, extent, causes and consequences (i.e., the cumulative effects) of the past and ongoing rapid changes on the Yamal is important for effective, long-term decision-making and planning. The cumulative effects to vegetation are the focus of this chapter because the plants are a critical component of the Yamal landscape that support the indigenous Nenets people and their reindeer and also protect the underlying ice-rich permafrost from melting. We are using a combination of ground-based studies (a transect of live locations across the Yamal), remote-sensing studies, and analyses of Nenets land-use activities to develop vegetation-change models that can be used to help anticipate future states of the tundra and how those changes might affect traditional reindeer herding practices and the thermal state of the permafrost. This chapter provides an overview of the approach, some early results, and recommendations for expanding the concept of cumulative-effects analysis to include examining the simultaneous and interactive effects of multiple drivers of change.
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- Yu, X., et al.
(author)
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Photonics-Aided 300–500 GHz Wireless Communications Beyond 100 Gbps
- 2022
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In: THz Communications. - Cham : Springer Science and Business Media Deutschland GmbH. ; , s. 467-472
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Book chapter (peer-reviewed)abstract
- We experimentally demonstrated a series of photonics-wireless transmissions in the 300–500 GHz band at the Technical University of Denmark (DTU) and the Zhejiang University (ZJU), with special efforts to drive the data rates beyond 100 Gbps and to extend the THz wireless reach by combining the techniques of state-of-the-art optoelectronic THz devices, spectrally efficient modulation formats and advanced digital signal processing.
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