| Records |
| Author |
Yao, J.Q.; Zhai, H.R.; Tang, X.M.; Gao, X.M.; Yang, X.D. |
Title  |
Amazon Fire Monitoring and Analysis Based on Multi-source Remote Sensing Data |
Type |
Journal Article |
| Year |
2020 |
Publication |
IOP Conference Series: Earth and Environmental Science |
Abbreviated Journal |
IOP Conf. Ser.: Earth Environ. Sci. |
| Volume |
474 |
Issue |
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Pages |
042025 |
| Keywords |
Remote Sensing |
| Abstract |
In August 2019, a large-scale fire broke out in the Amazon rainforest, bringing serious harm to the ecosystem and human beings. In order to accurately monitor the dynamic change of forest fire in Amazon rainforest and analyse the impact of fire spreading and extinction on the environment, firstly, based on NPP VIIRS data covering the Amazon fire area, the sliding window threshold method is adopted to extract the fire point, and the cause of fire change is monitored and analysed according to the time series. Secondly, based on the time series of CALIPSO data, the vertical distribution changes of atmospheric pollutants in the amazon fire area are analysed, and the comprehensive analysis is carried out by combining NPP VIIRS data. The experimental results show that only NPP VIIRS data is used to predict the fire, and the combination of CALIPSO data can better monitor the forest fire and predict the fire development trend. The combination of optical image and laser radar has greater advantages in dynamic fire monitoring and fire impact analysis. The method described in this paper can provide basic data reference for real-time and accurate prediction of forest fires and provide new ideas for dynamic fire monitoring. |
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| ISSN |
1755-1315 |
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| Call Number |
GFZ @ kyba @ |
Serial |
2927 |
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| Author |
Raap, T.; Pinxten, R.; Casasole, G.; Dehnhard, N.; Eens, M. |
| Title |
Ambient anthropogenic noise but not light is associated with the ecophysiology of free-living songbird nestlings |
Type |
Journal Article |
| Year |
2017 |
Publication |
Scientific Reports |
Abbreviated Journal |
Sci Rep |
| Volume |
7 |
Issue |
1 |
Pages |
2754 |
| Keywords |
Animals |
| Abstract |
Urbanization is associated with dramatic increases in noise and light pollution, which affect animal behaviour, physiology and fitness. However, few studies have examined these stressors simultaneously. Moreover, effects of urbanization during early-life may be detrimental but are largely unknown. In developing great tits (Parus major), a frequently-used model species, we determined important indicators of immunity and physiological condition: plasma haptoglobin (Hp) and nitric oxide (NOx) concentration. We also determined fledging mass, an indicator for current health and survival. Associations of ambient noise and light exposure with these indicators were studied. Anthropogenic noise, light and their interaction were unrelated to fledging mass. Nestlings exposed to more noise showed higher plasma levels of Hp but not of NOx. Light was unrelated to Hp and NOx and did not interact with the effect of noise on nestlings' physiology. Increasing levels of Hp are potentially energy demanding and trade-offs could occur with life-history traits, such as survival. Effects of light pollution on nestlings of a cavity-nesting species appear to be limited. Nonetheless, our results suggest that the urban environment, through noise exposure, may entail important physiological costs for developing organisms. |
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Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, Wilrijk, Belgium |
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English |
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| ISSN |
2045-2322 |
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PMID:28584270; PMCID:PMC5459827 |
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no |
| Call Number |
GFZ @ kyba @ |
Serial |
2451 |
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| Author |
He, L.; Páez, A.; Jiao, J.; An, P.; Lu, C.; Mao, W.; Long, D. |
| Title |
Ambient Population and Larceny-Theft: A Spatial Analysis Using Mobile Phone Data |
Type |
Journal Article |
| Year |
2020 |
Publication |
ISPRS International Journal of Geo-Information |
Abbreviated Journal |
Ijgi |
| Volume |
9 |
Issue |
6 |
Pages |
342 |
| Keywords |
Remote Sensing; Public Safety |
| Abstract |
In the spatial analysis of crime, the residential population has been a conventional measure of the population at risk. Recent studies suggest that the ambient population is a useful alternative measure of the population at risk that can better capture the activity patterns of a population. However, current studies are limited by the availability of high precision demographic characteristics, such as social activities and the origins of residents. In this research, we use spatially referenced mobile phone data to measure the size and activity patterns of various types of ambient population, and further investigate the link between urban larceny-theft and population with multiple demographic and activity characteristics. A series of crime attractors, generators, and detractors are also considered in the analysis to account for the spatial variation of crime opportunities. The major findings based on a negative binomial model are three-fold. (1) The size of the non-local population and people’s social regularity calculated from mobile phone big data significantly correlate with the spatial variation of larceny-theft. (2) Crime attractors, generators, and detractors, measured by five types of Points of Interest (POIs), significantly depict the criminality of places and impact opportunities for crime. (3) Higher levels of nighttime light are associated with increased levels of larceny-theft. The results have practical implications for linking the ambient population to crime, and the insights are informative for several theories of crime and crime prevention efforts. |
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2220-9964 |
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no |
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GFZ @ kyba @ |
Serial |
2997 |
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| Author |
Aceituno, J.; Sánchez, S.F.; Aceituno, F.J.; GaladÃ-EnrÃquez, D.; Negro, J.J.; Soriguer, R.C.; Gomez, G.S. |
| Title |
An All-Sky Transmission Monitor: ASTMON |
Type |
Journal Article |
| Year |
2011 |
Publication |
Publications of the Astronomical Society of the Pacific |
Abbreviated Journal |
Publications of the Astronomical Society of the Pacific |
| Volume |
123 |
Issue |
907 |
Pages |
1076-1086 |
| Keywords |
monitoring; light at night; light pollution; skyglow |
| Abstract |
We present here the All-Sky Transmission Monitor (ASTMON), designed to perform a continuous monitoring of the surface brightness of the complete night sky in several bands. The data acquired are used to derive, in addition, a subsequent map of the multiband atmospheric extinction at any location in the sky and a map of the cloud coverage. The instrument has been manufactured to withstand extreme weather conditions and to remain operative. Designed to be fully robotic, it is ideal to be installed outdoors as a permanent monitoring station. The preliminary results based on two of the currently operative units (at Doñana National Park, Huelva, and at the Calar Alto Observatory, AlmerÃa, Spain) are presented here. The parameters derived using ASTMON are in good agreement with those previously reported, which illustrates the validity of the design and the accuracy of the manufacturing. The information provided by this instrument will be presented in forthcoming articles, once we have accumulated a statistically significant amount of data. |
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0004-6280 |
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no |
| Call Number |
IDA @ john @ |
Serial |
195 |
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| Author |
Bowden, J. |
| Title |
An Analysis of Factors Affecting Catches of Insects in Light-Traps |
Type |
Journal Article |
| Year |
1982 |
Publication |
Bulletin of Entomological Research |
Abbreviated Journal |
Bull. Entomol. Res. |
| Volume |
72 |
Issue |
4 |
Pages |
535-556 |
| Keywords |
Ecology; Animals |
| Abstract |
Analysis of published data on catches of insects in light-traps with a variety of light sources and of different designs showed that all conformed to the previously proposed model describing the functioning of a light-trap: catch = constant × where W = trap illumination and I = background illumination. Light-trap catches in differing cloud conditions and in open and woodland situations also varied as predicted by the model. A table of correction factors for different amounts of cloud cover is provided. The results are discussed in relation to use of light-traps and interpretation of light-trap data. |
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0007-4853 |
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no |
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GFZ @ kyba @ |
Serial |
2589 |
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