BROWSE

Related Researcher

Author's Photo

Park, Sang Seo
Research Interests

ITEM VIEW & DOWNLOAD

Detection of Absorbing Aerosol Using Single Near-UV Radiance Measurements from a Cloud and Aerosol Imager

DC Field Value Language
dc.contributor.author Go, Sujung ko
dc.contributor.author Kim, Mijin ko
dc.contributor.author Kim, Jhoon ko
dc.contributor.author Park, Sang Seo ko
dc.contributor.author Jeong, Ukkyo ko
dc.contributor.author Choi, Myungje ko
dc.date.available 2019-09-02T09:04:46Z -
dc.date.created 2019-08-30 ko
dc.date.issued 2017-04 ko
dc.identifier.citation REMOTE SENSING, v.9, no.4, pp.378 ko
dc.identifier.issn 2072-4292 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/27357 -
dc.description.abstract The Ultra-Violet Aerosol Index (UVAI) is a practical parameter for detecting aerosols that absorb UV radiation, especially where other aerosol retrievals fail, such as over bright surfaces (e.g., deserts and clouds). However, typical UVAI retrieval requires at least two UV channels, while several satellite instruments, such as the Thermal And Near infrared Sensor for carbon Observation Cloud and Aerosol Imager (TANSO-CAI) instrument onboard a Greenhouse gases Observing SATellite (GOSAT), provide single channel UV radiances. In this study, a new UVAI retrieval method was developed which uses a single UV channel. A single channel aerosol index (SAI) is defined to measure the extent to which an absorbing aerosol state differs from its state with minimized absorption by aerosol. The SAI qualitatively represents absorbing aerosols by considering a 30-day minimum composite and the variability in aerosol absorption. This study examines the feasibility of detecting absorbing aerosols using a UV-constrained satellite, focusing on those which have a single UV channel. The Vector LInearized pseudo-spherical Discrete Ordinate Radiative Transfer (VLIDORT) was used to test the sensitivity of the SAI and UVAI to aerosol optical properties. The theoretical calculations showed that highly absorbing aerosols have a meaningful correlation with SAI. The retrieved SAI from OMI and operational OMI UVAI were also in good agreement when UVAI values were greater than 0.7 (the absorption criteria of UVAI). The retrieved SAI from the TANSO-CAI data was compared with operational OMI UVAI data, demonstrating a reasonable agreement and low rate of false detection for cases of absorbing aerosols in East Asia. The SAI retrieved from TANSO-CAI was in better agreement with OMI UVAI, particularly for the values greater than the absorbing threshold value of 0.7. ko
dc.language 영어 ko
dc.publisher MDPI ko
dc.title Detection of Absorbing Aerosol Using Single Near-UV Radiance Measurements from a Cloud and Aerosol Imager ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85017639846 ko
dc.identifier.wosid 000402571700077 ko
dc.type.rims ART ko
dc.identifier.doi 10.3390/rs9040378 ko
dc.identifier.url https://www.mdpi.com/2072-4292/9/4/378 ko
Appears in Collections:
UEE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show simple item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU