Assessment of Spatiotemporal Variability of Ultraviolet Index (UVI) over Kerala, India, Using Satellite Remote Sensing (OMI/AURA) Data
Environmental monitoring and assessment(2024)
摘要
The spatial and temporal dynamics of daily ultraviolet index (UVI) for a period of 18 years (2004–2022) over the Indian state of Kerala were statistically characterised in the study. The UVI measurements used for the study were derived from the ultraviolet-B (UVB) irradiance measured by the Ozone Monitoring Instrument (OMI) of the AURA satellite and classified into different severity levels for analysis. Basic statistics of daily, monthly and seasonal UVI as well as Mann-Kendall (MK) statistical trend characteristics and the rate of change of daily UVI using Theil-Sen’s slope test were also evaluated. A higher variability of UVI characteristics was observed in the Kerala region, and more than 79
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关键词
UV index,OMI/AURA,Trend,Mann-Kendal, Sen’s slope estimator,Health effects
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