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Author Gu, Y., Uprety, S., Blonski, S., Zhang, B., & Cao, C.
Title Improved algorithm for determining the Visible Infrared Imaging Radiometer Suite Day/Night Band high-gain stage dark offset free from light contamination Type Journal Article
Year 2019 Publication (up) Applied Optics Abbreviated Journal
Volume 58 Issue 6 Pages 1400-1407
Keywords Remote Sensing; Instrumentation
Abstract Dark offset is one of the key parameters for Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band (DNB) high-gain stage (HGS) radiometric calibration, whose accuracy strongly impacts applications of DNB low-light detection for Earth observation at nighttime. Currently, DNB observation of the VIIRS onboard calibrator blackbody (OBCBB) view, together with its observation of deep space during the spacecraft pitch maneuver performed early in the mission, has been used to compute the HGS dark offset continuously. However, the relationship between the DNB OBCBB data and the Earth view (EV) data is unclear due to electronic timing differences between these two views. It is questionable whether the DNB OBCBB data can monitor the EV HGS dark offset change. Through comprehensive analysis of the DNB OBCBB data and EV data acquired from the monthly special acquisitions known as the VIIRS recommended operating procedures (VROPs), we have shown that the OBCBB data can only track the dark current component of the DNB HGS EV dark offset, instead of the total dark offset. The DNB observation of deep space during the spacecraft pitch maneuver was also contaminated by starlight. With such background, in this paper we propose an improved algorithm for determining the DNB HGS dark offset. By combined use of the DNB OBCBB data and the DNB VROP data, the generated DNB HGS dark offset is both free from light contamination and capable of tracking continuous drift. The improved algorithm could potentially improve the DNB radiometric performance at low radiance level. Our results provide a solid theoretical basis for dark offset calibration of the VIIRS DNB onboard Suomi National Polar-Orbiting Partnership satellite and the following Joint Polar Satellite System satellites.
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Call Number IDA @ intern @ Serial 2358
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Author Barducci, A.; Marcoionni, P.; Pippi, I.; Poggesi, M.
Title Effects of light pollution revealed during a nocturnal aerial survey by two hyperspectral imagers Type Journal Article
Year 2003 Publication (up) Applied Optics Abbreviated Journal Appl. Opt.
Volume 42 Issue 21 Pages 4349
Keywords Remote Sensing
Abstract A remote-sensing campaign was performed in September 2001 at nighttime under clear-sky conditions before moonrise to assess the level of light pollution of urban and industrial origin. Two hyperspectral sensors, namely, the Multispectral Infrared and Visible Imaging Spectrometer and the Visible Infrared Scanner-200, which provide spectral coverage from the visible to the thermal infrared, were flown over the Tuscany coast (Italy) on board a Casa 212 airplane. The acquired images were processed to produce radiometrically calibrated data, which were then analyzed and compared with ground-based spectral measurements. Calibrated data acquired at high spectral resolution (∼2.5 nm) showed a maximum scene brightness almost of the same order of magnitude as that observed during similar daytime measurements, whereas their average luminosity was 3 orders of magnitude lower. The measurement analysis confirmed that artificial illumination hinders astronomical observations and produces noticeable effects even at great distances from the sources of the illumination.
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ISSN 0003-6935 ISBN Medium
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Call Number GFZ @ kyba @ Serial 2438
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Author Rybnikova, N.A.; Haim, A.; Portnova, B.A.
Title Is Prostate Cancer Incidence Worldwide Linked to Artificial Light at Night Exposures? Earlier Findings' Revisit and Current Trends' Analysis Type Journal Article
Year 2016 Publication (up) Archives of Environmental & Occupational Health Abbreviated Journal Arch Environ Occup Health
Volume 72 Issue 2 Pages 111-122
Keywords Human Health; Remote Sensing
Abstract Widespread use of artificial light at night (ALAN) might contribute to the global burden of hormone-dependent cancers. However, previous attempts to verify this association in population-level studies have been sparse. Using the GLOBOCAN, US-DMSP and World Bank's 2010-2012 databases, we studied the association between ALAN and prostate cancer (PC) incidence in 180 countries worldwide, controlling for several country-level confounders. As our analysis indicates, the PC-ALAN association emerged marginally significant when year-2012 PC age-standardized rate data were compared with ALAN levels (t = 1.886, P<0.1); while this association emerged as more significant (t>2.7; P<0.01) when only 110 countries with well-maintained cancer registries were analyzed. Along with other variables, ALAN explains up to 79% of PC ASRs variability. PC-ALAN association appears to vary regionally, with the greatest deviations in Central Africa, Small Island Developing States, South East Asia and Gulf States.
Address a Department of Natural Resources and Environmental Management, Faculty of Management, University of Haifa, 31805, Carmel, Mt, Israel
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ISSN 1933-8244 ISBN Medium
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Notes PMID:27029744 Approved no
Call Number LoNNe @ kyba @ Serial 1412
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Author You, X.; Monahan, K.M.
Title A thirst for development: mapping water stress using night-time stable lights as predictors of province-level water stress in China Type Journal Article
Year 2017 Publication (up) Area Abbreviated Journal Area
Volume 49 Issue 4 Pages 477-485
Keywords Remote Sensing
Abstract Given the rapid development within China, the inequality of available water resources has been increasingly of interest. Current methods for assessing water stress are inadequate for province‐scale rapid monitoring. A more responsive indicator at a finer scale is needed to understand the distribution of water stress in China. This paper selected Defense Meteorological Satellite Program Operational Line‐scan System night‐time stable lights as a proxy for water stress at the province level in China from 2004 to 2012, as night‐time lights are closely linked with population density, electricity consumption and other social, economic and environmental indicators associated with water stress. The linear regression results showed the intensity of night‐time lights can serve as a predictive tool to assess water stress across provinces with an R2 from 0.797 to 0.854. The model worked especially well in some regions, such as East China, North China and South West China. Nonetheless, confounding factors interfered with the predictive relationship, including population density, level of economic development, natural resource endowment and industrial structures, etc. The model was not greatly improved by building a multi‐variable linear regression including agricultural and industrial indicators. A straightforward predictor of water stress using remotely sensed data was developed.
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ISSN 0004-0894 ISBN Medium
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Call Number GFZ @ kyba @ Serial 2030
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Author Cardiel, N.; Gorgas, J.; Gallego J.; Serrano, A.; Zamorano, J.; Garcia-Vargas, M.-L.; Gomez-Cambronero, P.; Filgueira, J.M.
Title Proper handling of random errors and distortions in astronomical data analysis. Type Report
Year 2002 Publication (up) Astronomical Telescopes and Instrumentation Abbreviated Journal
Volume Issue Pages 297–304
Keywords Remote Sensing
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Call Number LoNNe @ kagoburian @ Serial 911
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