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The difference between laboratory and in-situ pixel-averaged emissivity: the effects on temperature-emissivity separation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Matsunaga, Tsuneo |
| Copyright Year | 1993 |
| Description | Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is a Japanese future imaging sensor which has five channels in thermal infrared (TIR) region. To extract spectral emissivity information from ASTER and/or TIMS data, various temperature-emissivity (T-E) separation methods have been developed to date. Most of them require assumptions on surface emissivity, in which emissivity measured in a laboratory is often used instead of in-situ pixel-averaged emissivity. But if these two emissivities are different, accuracies of separated emissivity and surface temperature are reduced. In this study, the difference between laboratory and in-situ pixel-averaged emissivity and its effect on T-E separation are discussed. TIMS data of an area containing both rocks and vegetation were also processed to retrieve emissivity spectra using two T-E separation methods. |
| File Size | 261435 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950017499 |
| Archival Resource Key | ark:/13960/t0zp8z704 |
| Language | English |
| Publisher Date | 1993-10-25 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing In Situ Measurement Scattering Imaging Techniques Surface Temperature Pixels Emissivity Thermal Radiation Thermal Emission Spectrum Analysis Vegetation Spectral Emission Rocks Infrared Radiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
