{"title":"Optimal Estimation of Surface Reflectance from Landsat TM Visible and Mid Infrared Data over Penang Island","authors":"H. S. Lim, M. Z. MatJafri, K. Abdullah, N. Mohd. Saleh","volume":26,"journal":"International Journal of Physical and Mathematical Sciences","pagesStart":130,"pagesEnd":133,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/15515","abstract":"Retrieval of the surface reflectance is important in the\r\nremotely sensed data analysis to obtain the atmospheric reflectance or\r\natmospheric correction. The relationship between visible and mid\r\ninfrared reflectance over land was investigated and developed in this\r\nstudy. The surface reflectances of the two visible bands were\r\nmeasured using a handheld spectroradiometer collected around\r\nPenang Island. In this study, we use the assumption that the 2.1 \u03bcm\r\nband is not affected by aerosol and it is transparent to most aerosol\r\ntypes (except dust). Therefore the satellite observed signal is the\r\nsame as the surface signal in 2.1 \u03bcm band. The correlation between\r\nthe surface reflectance measured by the spectroradiometer in the blue\r\nand red region and the 2.1 \u03bcm observed by the satellite has been\r\nestablished. We investigate five dates of Landsat TM scenes in this\r\nstudy. The finding obtained by this study indicates that the surface\r\nreflectance can be retrieved from the 2.1 \u03bcm band.","references":"[1] Slater, J. F., Dibba, J. E., Campbell, J. W. and Moore, T. S. 2004,\r\nPhysical and chemical properties of surface and column aerosols at a\r\nrural New England site during MODIS overpass, Remote Sensing of\r\nEnvironment, Volume 92, Issue 2, 173-180.\r\n[2] Wald, L. and Baleynaud, J-M., 1999, Observing air quality over the city\r\nof Nantes by means of Landsat thermal infrared data, International\r\nJournal of Remote Sensing, 20 (5), 947-959.\r\n[3] Kokhanovskya,b, A.A., Mayer, B. and Rozanov, V. V., 2005, A\r\nparameterization of the diffuse transmittance and reflectance for aerosol\r\nremote sensing problems, Atmospheric Research, 73, 37 - 43.\r\n[4] Kaufman, Y. J., Wald, A. E., Remer, L. A., Gao, B. C., Li, R. R. and\r\nFlynn, L., 1997, The MODIS 2.1- m cannel\u00d4\u00c7\u00f6correlation with visible\r\nreflectance for use in remote sensing of aerosol, IEEE Transactions On\r\nGeoscience and Remote Sensing, V. 35, NO. 5, 1286 - 1298.\r\n[5] Wen, G. Y., Tsay, S. C., Cahalan, R. F and Oreopolos, L., (1999). Path\r\nradiance technique for retrieving aerosol optical thickness over land,\r\nJournal of Geophysical Research, 104 (D24), 31321 - 31332.\r\n[6] Vermote, E. and Roger, J. C., 1996, Radiative transfer modeling for\r\ncalibration and atmospheric correction, Advances in the Use of NOAA\r\nAVHRR Data for Land Applications, 49-72.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 26, 2009"}