English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This study investigated the decadal variation of the direct surface solarradiation (DiSR) and the diffuse surface solar radiation (DfSR) during1961–2008 in the Shanghai megacity as well as their relationships to AerosolOptical Depth (AOD) under clear-sky conditions. Three successive periodswith unique features of long term variation of DiSR were identified for bothclear-sky and all-sky conditions: a "dimming" period from the late 1960sto the mid 1980s, a "stabilization"/"slight brightening" period from themid 1980s to the mid 1990s, and a "renewed dimming" period thereafter.During the two dimming periods of DiSR, DfSR brightened significantly underclear-sky conditions, indicating that change in atmospheric transparencyresulting from aerosol emission has an important role on decadal variationof surface solar radiation (SSR) over this area. The analysis on therelationship between the Moderate-resolution Imaging Spectroradiometer(MODIS) retrieved AOD and the corresponding hourly measurements of DiSR andDfSR under clear-sky conditions clearly revealed that AOD is significantlycorrelated and anti-correlated with DfSR and DiSR, respectively, both above99% confidence in all seasons, indicating the great impact of aerosols onSSR through absorption and/or scattering in the atmosphere. In addition,both AOD and the corresponding DiSR and DfSR measured during the satellitepassage over Shanghai show obvious weekly cycles. On weekends, AOD is lowerthan the weekly average, corresponding to higher DiSR and lower DfSR, whilethe opposite pattern was true for weekdays. Less AOD on weekends due to thereduction of transportation and industrial activities results in enhancementof atmospheric transparency under cloud free conditions so as to increaseDiSR and decrease DfSR simultaneously. Results show that aerosol loadingfrom the anthropogenic emissions is an important modulator for the long termvariation of SSR in Shanghai

Analysis on the impact of aerosol optical depth on surface solar radiation in the Shanghai megacity, China