Detection of cirrus based on refractive index using MODIS data

Sungwook Hong, Inchul Shin, Wontae Yun

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Cirrus is important in the energy balance of the earth-atmosphere system. Previous studies are based on the forward models using the single scattering in the cirrus. In this study, we provide a unique method to detect the cirrus using the polarized reflectivities, single-scattering, and optical properties of water and ice with Moderate Resolution Imaging Spectrometer (MODIS) observations. Consequently, the polarized reflectivities at MODIS 1.375 μm channel show the reasonable characteristics of the cirrus. The effective refractive indexes are retrieved approximately from 1.1 to 1.4. This investigation provides an effective inversion procedure for detecting the cirrus using the physical characteristics in the cirrus on the basis of the polarization and refractive index.

Original languageEnglish
Title of host publicationRemote Sensing and Modeling of the Atmosphere, Oceans, and Interactions III
DOIs
StatePublished - 2010
EventRemote Sensing and Modeling of the Atmosphere, Oceans, and Interactions III - Incheon, Korea, Republic of
Duration: 13 Oct 201014 Oct 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7856
ISSN (Print)0277-786X

Conference

ConferenceRemote Sensing and Modeling of the Atmosphere, Oceans, and Interactions III
Country/TerritoryKorea, Republic of
CityIncheon
Period13/10/1014/10/10

Keywords

  • Cirrus
  • infrared
  • polarization
  • refractive index
  • remote sensing
  • single scattering

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