scholarly journals Noise attenuation varies by interactions of land cover and season in an urban/peri-urban landscape

2022 ◽  
Author(s):  
Justin M. Gaudon ◽  
Michael J. McTavish ◽  
Jonas Hamberg ◽  
Heather A. Cray ◽  
Stephen D. Murphy
Keyword(s):  
Land Cover ◽  
Urban Landscape ◽  
Noise Attenuation

scholarly journals A Modified Bare Soil Index to Identify Bare Land Features during Agricultural Fallow-Period in Southeast Asia Using Landsat 8

Land ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 231
Author(s):  
Can Trong Nguyen ◽  
Amnat Chidthaisong ◽  
Phan Kieu Diem ◽  
Lian-Zhi Huo
Keyword(s):  
Remote Sensing ◽  
Land Cover ◽  
Urban Areas ◽  
Near Infrared ◽  
Urban Landscape ◽  
Bare Soil ◽  
Critical Element ◽  
Landsat 8 ◽  
Climate Conditions ◽  
Fallow Period

Bare soil is a critical element in the urban landscape and plays an essential role in urban environments. Yet, the separation of bare soil and other land cover types using remote sensing techniques remains a significant challenge. There are several remote sensing-based spectral indices for barren detection, but their effectiveness varies depending on land cover patterns and climate conditions. Within this research, we introduced a modified bare soil index (MBI) using shortwave infrared (SWIR) and near-infrared (NIR) wavelengths derived from Landsat 8 (OLI—Operational Land Imager). The proposed bare soil index was tested in two different bare soil patterns in Thailand and Vietnam, where there are large areas of bare soil during the agricultural fallow period, obstructing the separation between bare soil and urban areas. Bare soil extracted from the MBI achieved higher overall accuracy of about 98% and a kappa coefficient over 0.96, compared to bare soil index (BSI), normalized different bare soil index (NDBaI), and dry bare soil index (DBSI). The results also revealed that MBI considerably contributes to the accuracy of land cover classification. We suggest using the MBI for bare soil detection in tropical climatic regions.

Rich lizards: How affluence and land cover influence the diversity and abundance of desert reptiles persisting in an urban landscape

2015 ◽  
Vol 182 ◽  
pp. 87-92 ◽  
Author(s):  
Jeffrey W. Ackley ◽  
Jianguo Wu ◽  
Michael J. Angilletta ◽  
Soe W. Myint ◽  
Brian Sullivan
Keyword(s):  
Land Cover ◽  
Urban Landscape ◽  
Desert Reptiles

scholarly journals MONITORING KEANEKARAGAMAN JENIS BURUNG PADA BERBAGAI TUTUPAN LAHAN DI CIBINONG SCIENCE CENTER (CSC), JAWA BARAT

2020 ◽  
Vol 19 (3B) ◽  
Author(s):  
Yohanna Dalimunthe
Keyword(s):  
Land Cover ◽  
Urban Landscape ◽  
Landsat Imagery ◽  
Community Response ◽  
Paddy Fields ◽  
Land Cover Changes ◽  
Urban Landscapes ◽  
Science Center ◽  
Landsat Images ◽  
Point Count

Birds play an essential role in ecosystems, especially in urban landscapes such as the Cibinong Science Center (CSC). As an urban landscape, CSC always experiences land cover changes due to the development of research infrastructure resulting in various human-made land cover types. This study aims to determine the diversity of birds in various types of land cover as a community response to CSC development dynamics. Bird data was collected using the point count method modified with a grid (plot) measuring 200mx200m with a radius of observation as far as 50m at 34 points. Landsat images were analyzed from 2006 to 2018 to see changes in land cover changes. The observations show that there are 35 species of birds. Among those, three birds are protected by Indonesian regulation. There are six type of land cover in CSC paddy fields, buildings, opened area, farm land, plantation, and water. CSC has total diversity S(mean) = 32 covering 65% of all recorded birds. At land cover level, building area show the highest diversity (Shannon=2.03) while paddy fields is the lowest (Shannon=1.45). Based on the Landsat imagery, there are several changes in vegetation and the addition of some buildings.   

scholarly journals Historical land use and land cover for assessing the northern Colorado Front Range urban landscape

2019 ◽  
Vol 15 (2) ◽  
pp. 89-93 ◽  
Author(s):  
Mark A. Drummond ◽  
Michael P. Stier ◽  
James (Jay) E. Diffendorfer
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Urban Landscape ◽  
Colorado Front Range ◽  
Front Range ◽  
Northern Colorado ◽  
Historical Land Use

scholarly journals Substantial ozone enhancement over the North China Plain from increased biogenic emissions due to heat waves and land cover in summer 2017

2019 ◽  
Author(s):  
Mingchen Ma ◽  
Yang Gao ◽  
Yuhang Wang ◽  
Shaoqing Zhang ◽  
L. Ruby Leung ◽  
...  
Keyword(s):  
Land Cover ◽  
Land Cover Change ◽  
North China Plain ◽  
North China ◽  
Urban Landscape ◽  
Heat Waves ◽  
Biogenic Emissions ◽  
Ozone Pollution ◽  
The North ◽  
The North China Plain

Abstract. In the summer of 2017, heavy ozone pollution swamped most of the North China Plain (NCP), with the maximum regional average of daily maximum 8-h ozone concentration (MDA8) reaching almost 120 ppbv. In light of the continuing reduction of anthropogenic emissions in China, the underlying mechanisms for the occurrences of these regional extreme ozone episodes are elucidated from two perspectives: meteorology and biogenic emissions. The significant positive correlation between MDA8 and temperature, which is amplified during heat waves concomitant with stagnant air and no precipitation, supports the crucial role of meteorology in driving high ozone concentrations. We also find that biogenic emissions are enhanced due to factors previously not considered. During the heavy ozone pollution episodes in June 2017, biogenic emissions driven by high vapor pressure deficit (VPD), land cover change and urban landscape yield an extra mean MDA8 ozone of 3.08, 2.79 and 4.74 ppbv, respectively over the NCP, which together contribute as much to MDA8 ozone as biogenic emissions simulated using the land cover of 2003 and ignoring VPD and urban landscape. In Beijing, the biogenic emission increase due to urban landscape has a comparable effect on MDA8 ozone to the combined effect of high VPD and land cover change between 2003 and 2016. This study highlights the vital contributions of heat waves, land cover change and urbanization to the occurrence of extreme ozone episode, with significant implications for ozone pollution control in a future when heat wave frequency and intensity are projected to increase under global warming.

scholarly journals Is there Urban Landscape in Metropolitan Areas? An Unobvious Answer Based on Corine Land Cover Analyses

Land ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 51
Author(s):  
Urszula Myga-Piątek ◽  
Anna Żemła-Siesicka ◽  
Katarzyna Pukowiec-Kurda ◽  
Michał Sobala ◽  
Jerzy Nita
Keyword(s):  
Land Cover ◽  
Metropolitan Area ◽  
Urban Areas ◽  
Spatial Organization ◽  
Urban Landscape ◽  
Metropolitan Areas ◽  
Urban Landscapes ◽  
Corine Land Cover ◽  
Levels Of Detail ◽  
Landscape Factors

The recent increase in urban areas has stimulated landscape urbanization. One of the ways to study this process is an analysis based on the structure of land cover. The aim of this paper is to assess the intensity of the urban landscape on the basis of the CORINE in the seven largest metropolitan areas in Poland and in the Ruhr Metropolis in Germany. To this end, an urban landscape intensity indicator (ULII) was used based on Corine Land Cover at three levels of detail: the metropolitan area, municipalities and hexagons. There are similarities in landscape structure in areas with similar origin (industrial function) and spatial organization (mono- and polycentric agglomerations). The landscape of the Upper Silesia-Zagłębie Metropolis differs from the landscape of other metropolitan areas in Poland and simultaneously shows similarities to the landscape of the Ruhr Metropolis. The results of the ULII also revealed a dependency: the dominance of rural and transitional landscapes in a majority of the study areas. Urban landscapes occur only in the central zones of the metropolitan areas. This proves that determining the range of a metropolitan area in terms of landscape factors is different from doing it with formal or legal ones.

scholarly journals Using Urban Landscape Trajectories to Develop a Multi-Temporal Land Cover Database to Support Ecological Modeling

2009 ◽  
Vol 1 (4) ◽  
pp. 1353-1379 ◽  
Author(s):  
Jeffrey Hepinstall-Cymerman ◽  
Stefan Coe ◽  
Marina Alberti
Keyword(s):  
Land Cover ◽  
Urban Landscape ◽  
Ecological Modeling ◽  
Multi Temporal

Shannon entropy as a peri-urban landscape metric: concentration of anthropogenic land cover element

2018 ◽  
Vol 64 (3) ◽  
pp. 469-489 ◽  
Author(s):  
Katarzyna Cegielska ◽  
Anita Kukulska-Kozieł ◽  
Tomasz Salata ◽  
Piotr Piotrowski ◽  
Marta Szylar
Keyword(s):  
Land Cover ◽  
Shannon Entropy ◽  
Urban Landscape ◽  
Landscape Metric

scholarly journals Substantial ozone enhancement over the North China Plain from increased biogenic emissions due to heat waves and land cover in summer 2017

2019 ◽  
Vol 19 (19) ◽  
pp. 12195-12207 ◽  
Author(s):  
Mingchen Ma ◽  
Yang Gao ◽  
Yuhang Wang ◽  
Shaoqing Zhang ◽  
L. Ruby Leung ◽  
...  
Keyword(s):  
Land Cover ◽  
Land Cover Change ◽  
North China Plain ◽  
Urban Landscape ◽  
Heat Waves ◽  
Biogenic Emissions ◽  
Ozone Pollution ◽  
Biogenic Emission ◽  
The North ◽  
Ozone Episodes

Abstract. In the summer of 2017, heavy ozone pollution swamped most of the North China Plain (NCP), with the maximum regional average of daily maximum 8 h ozone concentration (MDA8) reaching almost 120 ppbv. In light of the continuing reduction of anthropogenic emissions in China, the underlying mechanisms for the occurrences of these regional extreme ozone episodes are elucidated from two perspectives: meteorology and biogenic emissions. The significant positive correlation between MDA8 ozone and temperature, which is amplified during heat waves concomitant with stagnant air and no precipitation, supports the crucial role of meteorology in driving high ozone concentrations. We also find that biogenic emissions are enhanced due to factors previously not considered. During the heavy ozone pollution episodes in June 2017, biogenic emissions driven by high vapor pressure deficit (VPD), land cover change and urban landscape yield an extra mean MDA8 ozone of 3.08, 2.79 and 4.74 ppbv, respectively, over the NCP, which together contribute as much to MDA8 ozone as biogenic emissions simulated using the land cover of 2003 and ignoring VPD and urban landscape. In Beijing, the biogenic emission increase due to urban landscape has a comparable effect on MDA8 ozone to the combined effect of high VPD and land cover change between 2003 and 2016. In light of the large effect of urban landscape on biogenic emission and the subsequent ozone formation, the types of trees may be cautiously selected to take into account of the biogenic volatile organic compound (BVOC) emission during the afforestation of cities. This study highlights the vital contributions of heat waves, land cover change and urbanization to the occurrence of extreme ozone episodes, with significant implications for ozone pollution control in a future when heat wave frequency and intensity are projected to increase under global warming.

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