Difference between revisions of "Landsat ETM+/TM/MSS"
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1) edge mask - to deal with bands having different spatial extents | 1) edge mask - to deal with bands having different spatial extents | ||
a) NLDAS processing did a similar thing. All output from USGS is currently not trimming the edges. See current [https://landsat.usgs.gov/products_IP_LPGSvsNLAPS.php] | a) NLDAS processing did a similar thing. All output from USGS is currently not trimming the edges. See current [https://landsat.usgs.gov/products_IP_LPGSvsNLAPS.php] | ||
− | 2) shadow mask (all bands < 0.10) | + | 2) "other land" - herbaceous wetlands sometime come up as snow, this is optionally calculated and applied (always applied for 0 and 127 - which are not valid classes) |
− | + | 3) shadow mask (all bands < 0.10) | |
− | + | 4) brightness temperature mask from band 6 | |
− | + | 5) water mask (all bands < 0.10 & NLCD indicates water) - this is a subset of 2...inverse is snow covered lake | |
6) optional cloud mask (calculated for scene only applied w/ flag - rarely used) | 6) optional cloud mask (calculated for scene only applied w/ flag - rarely used) | ||
− | 7) | + | 7) fsca < 0.15 |
+ | |||
i) surface reflectance (6 bands) | i) surface reflectance (6 bands) | ||
k) brightness temperature | k) brightness temperature | ||
j) RGB - bands 5,4,2 (stretch version of surface reflectance) | j) RGB - bands 5,4,2 (stretch version of surface reflectance) | ||
+ | l) ndsi - (2-5)/(2+5) | ||
+ | m) 3 band saturation mask indicating combination of saturation that resulted in different TMSCAG "runs" | ||
+ | |||
== MSS/TM crossover 1985-1987 == | == MSS/TM crossover 1985-1987 == | ||
[[http://wiki.snow.ucsb.edu:8888/santa-ana/160]] | [[http://wiki.snow.ucsb.edu:8888/santa-ana/160]] |
Revision as of 12:21, 6 May 2010
TM/ETM+
To be added: 1)water mask should be a lake ice output 2)other land mask specificity 3)fVEG by merging multiple TMSCAG runs (write matlab function) 4)use emissivity for each landcover type to determine actual temperature instead of brightness temperature 5)post-processing with option for subset to be saved in specific location 6)populate database Karl database with file locations for Landsat 5 and 7 7)pre-processing function that skips when the output already exists
Output 1: .mat -
a) fsca raw - values are 0 to 1 b) fsca - values are 0 and 0.15 to 1. Product has had the following masks applied c) masks 7 bands: 1) edge mask - to deal with bands having different spatial extents a) NLDAS processing did a similar thing. All output from USGS is currently not trimming the edges. See current [1] 2) "other land" - herbaceous wetlands sometime come up as snow, this is optionally calculated and applied (always applied for 0 and 127 - which are not valid classes) 3) shadow mask (all bands < 0.10) 4) brightness temperature mask from band 6 5) water mask (all bands < 0.10 & NLCD indicates water) - this is a subset of 2...inverse is snow covered lake 6) optional cloud mask (calculated for scene only applied w/ flag - rarely used) 7) fsca < 0.15 i) surface reflectance (6 bands) k) brightness temperature j) RGB - bands 5,4,2 (stretch version of surface reflectance) l) ndsi - (2-5)/(2+5) m) 3 band saturation mask indicating combination of saturation that resulted in different TMSCAG "runs"
MSS/TM crossover 1985-1987
[[2]]