Matches in SemOpenAlex for { <https://semopenalex.org/work/W289279552> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W289279552 endingPage "142" @default.
- W289279552 startingPage "131" @default.
- W289279552 abstract "Spectral solar irradiances were observed using a visible and UV Multi-Filter Rotating Shadowband Radiometer on the rooftop of the Science Building at Yonsei University, Seoul (, , 86 m) during one year period in 2006. 1-min measurements of global(total) and diffuse solar irradiances over the solar zenith angle (SZA) ranges from to were used to examine the effects of clouds and total optical depth (TOD) on enhancing four solar irradiance components (broadband 395-955 nm, UV channel 304.5 nm, visible channel 495.2 nm, and infrared channel 869.2 nm) together with the sky camera images for the assessment of cloud conditions at the time of each measurement. The obtained clear-sky irradiance measurements were used for empirical model of clear-sky irradiance with the cosine of the solar zenith angle (SZA) as an independent variable. These developed models produce continuous estimates of global and diffuse solar irradiances for clear sky. Then, the clear-sky irradiances are used to estimate the effects of clouds and TOD on the enhancement of surface solar irradiance as a difference between the measured and the estimated clear-sky values. It was found that the enhancements occur at TODs less than 1.0 (i.e. transmissivity greater than 37%) when solar disk was not obscured or obscured by optically thin clouds. Although the TOD is less than 1.0, the probability of the occurrence for the enhancements shows 50~65% depending on four different solar radiation components with the low UV irradiance. The cumulus types such as stratoculmus and altoculumus were found to produce localized enhancement of broadband global solar irradiance of up to 36.0% at TOD of 0.43 under overcast skies (cloud cover 90%) when direct solar beam was unobstructed through the broken clouds. However, those same type clouds were found to attenuate up to 80% of the incoming global solar irradiance at TOD of about 7.0. The maximum global UV enhancement was only 3.8% which is much lower than those of other three solar components because of the light scattering efficiency of cloud drops. It was shown that the most of the enhancements occurred under cloud cover from 40 to 90%. The broadband global enhancement greater than 20% occurred for SZAs ranging from 28 to . The broadband diffuse irradiance has been increased up to 467.8% (TOD 0.34) by clouds. In the case of channel 869.0 nm, the maximum diffuse enhancement was 609.5%. Thus, it is required to measure irradiance for various cloud conditions in order to obtain climatological values, to trace the differences among cloud types, and to eventually estimate the influence on solar irradiance by cloud characteristics." @default.
- W289279552 created "2016-06-24" @default.
- W289279552 creator A5007817245 @default.
- W289279552 creator A5048569858 @default.
- W289279552 creator A5050163637 @default.
- W289279552 creator A5077721033 @default.
- W289279552 creator A5081375923 @default.
- W289279552 date "2011-01-01" @default.
- W289279552 modified "2023-09-27" @default.
- W289279552 title "The effects of clouds on enhancing surface solar irradiance" @default.
- W289279552 doi "https://doi.org/10.14191/atmos.2011.21.2.131" @default.
- W289279552 hasPublicationYear "2011" @default.
- W289279552 type Work @default.
- W289279552 sameAs 289279552 @default.
- W289279552 citedByCount "0" @default.
- W289279552 crossrefType "journal-article" @default.
- W289279552 hasAuthorship W289279552A5007817245 @default.
- W289279552 hasAuthorship W289279552A5048569858 @default.
- W289279552 hasAuthorship W289279552A5050163637 @default.
- W289279552 hasAuthorship W289279552A5077721033 @default.
- W289279552 hasAuthorship W289279552A5081375923 @default.
- W289279552 hasConcept C120189094 @default.
- W289279552 hasConcept C120665830 @default.
- W289279552 hasConcept C121332964 @default.
- W289279552 hasConcept C153294291 @default.
- W289279552 hasConcept C205649164 @default.
- W289279552 hasConcept C2776573159 @default.
- W289279552 hasConcept C39432304 @default.
- W289279552 hasConcept C46423501 @default.
- W289279552 hasConcept C53970728 @default.
- W289279552 hasConcept C62649853 @default.
- W289279552 hasConcept C73329638 @default.
- W289279552 hasConcept C91586092 @default.
- W289279552 hasConcept C9695528 @default.
- W289279552 hasConceptScore W289279552C120189094 @default.
- W289279552 hasConceptScore W289279552C120665830 @default.
- W289279552 hasConceptScore W289279552C121332964 @default.
- W289279552 hasConceptScore W289279552C153294291 @default.
- W289279552 hasConceptScore W289279552C205649164 @default.
- W289279552 hasConceptScore W289279552C2776573159 @default.
- W289279552 hasConceptScore W289279552C39432304 @default.
- W289279552 hasConceptScore W289279552C46423501 @default.
- W289279552 hasConceptScore W289279552C53970728 @default.
- W289279552 hasConceptScore W289279552C62649853 @default.
- W289279552 hasConceptScore W289279552C73329638 @default.
- W289279552 hasConceptScore W289279552C91586092 @default.
- W289279552 hasConceptScore W289279552C9695528 @default.
- W289279552 hasIssue "2" @default.
- W289279552 hasLocation W2892795521 @default.
- W289279552 hasOpenAccess W289279552 @default.
- W289279552 hasPrimaryLocation W2892795521 @default.
- W289279552 hasRelatedWork W1955215968 @default.
- W289279552 hasRelatedWork W1966582550 @default.
- W289279552 hasRelatedWork W2003373911 @default.
- W289279552 hasRelatedWork W2014012904 @default.
- W289279552 hasRelatedWork W2016093451 @default.
- W289279552 hasRelatedWork W2018827553 @default.
- W289279552 hasRelatedWork W2030852427 @default.
- W289279552 hasRelatedWork W2032472258 @default.
- W289279552 hasRelatedWork W2049389443 @default.
- W289279552 hasRelatedWork W2107558239 @default.
- W289279552 hasRelatedWork W2113987583 @default.
- W289279552 hasRelatedWork W2168582304 @default.
- W289279552 hasRelatedWork W2266835003 @default.
- W289279552 hasRelatedWork W2320121969 @default.
- W289279552 hasRelatedWork W2365429323 @default.
- W289279552 hasRelatedWork W2386116010 @default.
- W289279552 hasRelatedWork W2473171900 @default.
- W289279552 hasRelatedWork W2511444592 @default.
- W289279552 hasRelatedWork W2884526136 @default.
- W289279552 hasRelatedWork W91611608 @default.
- W289279552 hasVolume "21" @default.
- W289279552 isParatext "false" @default.
- W289279552 isRetracted "false" @default.
- W289279552 magId "289279552" @default.
- W289279552 workType "article" @default.