* Gabriel Cotlier <gabikl...@gmail.com> [2018-08-21 12:00:24 -0300]:
I would like to ask if nonetheless the effect due to "stray light" the *i.landsat8.swlst* code for split window is still applicable to Landsat 8 data and whether these error is specially visible on water bodies?
The implemented algorithm (Du, 2015) bases upon the generalized split-window algorithm proposed by Wan (2014). The 'stray light' issue is not dealt upfront with this approach. The 'stray light' issue is dealt with an algorithmic correction introduced in the Collection 1 products. And, of course, there might be more questions that relate to the quality and performance of the algorithm by Du. Regarding "water bodies", I don't know.
whether band 10 is better than band 11 in terms of correction processing for Level -1 data products?
Band 10 is the one selected for the single-channel based LST products that span across all Landsat sensors. See: "Landsat Provisional Surface Temperature (ST) Digital Object Identification (DOI): doi.org/10.5066/F7J38RTH". Band 11 is the one with large calibration uncertainties. A good reference is this publication: Malakar, N. K., Hulley, G. C., Hook, S. J., Laraby, K., Cook, M., & Schott, J. R. (2018). An Operational Land Surface Temperature Product for Landsat Thermal Data: Methodology and Validation. IEEE Transactions on Geoscience and Remote Sensing, (99), 1-19. http://dx.doi.org/10.1109/TGRS.2018.2824828. Nikos _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user
