Spatial interpolation of temperature in the United States using residual kriging

Wu, Tingting; Li, Yingru

doi:10.1016/j.apgeog.2013.07.012

Cited by 126 publications

(76 citation statements)

References 37 publications

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“…For each heavy metal, at least two hundred different combinations of scenarios and parameters were tested, and the best model result was used to create a relevant kriging surface in ArcGIS. The predicted water pollution data of the 174 cities was extracted from the kriging surface and validated by comparing them to the observed values using a paired t test and root-mean-square-error (RMSE) [45]. The optimal estimation data set for each heavy metal was identified based on the results of paired t test (p-value > 0.05) and smallest RMSE.…”

Section: Methodsmentioning

confidence: 99%

Spatiotemporal Analysis of Heavy Metal Water Pollution in Transitional China

Lee

et al. 2015

Sustainability

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China's socioeconomic transitions have dramatically accelerated its economic growth in last three decades, but also companioned with continuous environmental degradation. This study will advance the knowledge of heavy metal water pollution in China from a spatial-temporal perspective. Specifically, this study addressed the following: (1) spatial patterns of heavy metal water pollution levels were analyzed using data of prefecture-level cities from 2004 to 2011; and (2) spatial statistical methods were used to examine the underlying socioeconomic and physical factors behind water pollution including socioeconomic transitions (industrialization, urbanization, globalization and economic development), and environmental characteristic (natural resources, hydrology and vegetation coverage). The results show that only Cr pollution levels increased over the years. The individual pollution levels of the other four heavy metals, As, Cd, Hg, and Pb, declined. High heavy metal water pollution levels are closely associated with both anthropogenic activities and physical environments, in particular abundant mineral resources and industrialization prosperity. On the other hand, economic development and urbanization play important roles in controlling water pollution problems. The analytical findings will provide valuable information for OPEN ACCESSSustainability 2015, 7 9068 policy-makers to initiate and adjust protocols and strategies for protecting water sources and controlling water pollution; thus improving the quality of living environments.

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Section: Methodsmentioning

confidence: 99%

Spatiotemporal Analysis of Heavy Metal Water Pollution in Transitional China

Lee

et al. 2015

Sustainability

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“…The ICBl units were located in an open, windless space. To observe the temperature changes, a Kriging interpolation map was generated for different temperatures using ArcGIS 10.0 [23]. To analyze error estimates, grid points on the right side of the ICBl, 15 cm apart, were inspected regularly.…”

Section: Temperature Changes In Icbl Longitudinal Sectionmentioning

confidence: 99%

Integrated Furnace for Combustion/Gasification of Biomass Fuel for Tobacco Curing

Wang

Zhang

Wei

et al. 2018

Waste Biomass Valor

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A new system for providing heat for the flue-curing of tobacco was developed by modifying the conventional direct combustion of biomass fuel (bio-fuel) such that the energy stored in the fuels was fully utilized. The system consisted of an integrated furnace with a heat dissipation structure for combusting and gasifying bio-fuel including solid fuel as well as combusting the generated gas, and a heat exchanger with a special flue pipe layout. The new device was tested through experiments in different tobacco-growing areas, using the controlled direct combustion of coal and biomass fuel for flue-curing in a bulk curing barn. The results showed that the distribution of temperature in the longitudinal section of the new system exhibited a regular temperature transition pattern corresponding to the solid fuel and gas combustion areas. The amount of carbon monoxide in the flue gas at the chimney exit indicated that the burning of the biomass briquette fuel was more complete, with less than 1.7% carbon monoxide generated. The thermal efficiencies of the biomass briquette fuel and firewood were 55.26 and 53.17%, respectively, which were higher than that of coal (49.52%). The newly developed integrated furnace would be well suited for tobacco curing in tobacco-growing areas, and could be used commercially for drying agricultural products on different scales.

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“…Kriging models in ArcGIS were used to estimate the levels of five types of heavy metals from industrial wastewater. Previous studies have shown kriging to be an accurate method for data estimation because of its low bias [3,[51][52][53][54]. For each metal, at least 50 different scenarios with different parameters were tested, and the optimal model was identified by comparing root-mean-square deviation (RMSE) and paired t test results.…”

Section: Methodsmentioning

confidence: 99%

Spatial Assessment of Cancer Incidences and the Risks of Industrial Wastewater Emission in China

Liu

et al. 2016

Sustainability

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China's rapid economic growth and social transitions have deteriorated environmental conditions and caused further public health issues in last three decades. This study examines the complex mechanisms of how socioeconomic transitions and physical environmental conditions impact public health, especially with respect to increasing cancer incidences in mainland China from a spatial-temporal perspective. Specifically, (1) spatial variations of seven types of cancer incidences were analyzed in relation to heavy metal emissions from industrial wastewater at the prefecture-level city scale from 2004 to 2009. Additionally; (2) spatial statistical methods were employed to explore the associations between health outcome, heavy metal emissions from industrial wastewater (arsenic, chromium, cadmium, mercury, lead), as well as socioeconomic transitions (industrialization, urbanization, globalization) and physical environmental factors (hydrology and vegetation coverage). Results showed a significant increase of cancer incidences between 2004 and 2009. Consistent with the spatial pattern of heavy metal emissions, cancer patient clusters were identified in both traditional industrial bases and newly industrialized economic zones, especially in major cities located at downstream watersheds, including Beijing, Shanghai, Guangzhou, Shenyang, and Wuhan. The results also revealed the double-edged effects of industrialization, economic growth, and urbanization on natural environment and human health. The findings provide informative knowledge of heavy metal pollution and cancer outbreaks in China and therefore offer valuable reference for authorities formulating regulations.

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Spatial interpolation of temperature in the United States using residual kriging

Cited by 126 publications

References 37 publications

Spatiotemporal Analysis of Heavy Metal Water Pollution in Transitional China

Spatiotemporal Analysis of Heavy Metal Water Pollution in Transitional China

Integrated Furnace for Combustion/Gasification of Biomass Fuel for Tobacco Curing

Spatial Assessment of Cancer Incidences and the Risks of Industrial Wastewater Emission in China

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