Difference between revisions of "Landsat ETM+/TM/MSS"
From Snow
Jump to navigationJump to searchm |
|||
Line 8: | Line 8: | ||
4)pre-processing function that skips when the output already exists | 4)pre-processing function that skips when the output already exists | ||
5)post-processing with option for subset to be saved in specific location | 5)post-processing with option for subset to be saved in specific location | ||
+ | 6)water mask should be a lake ice output | ||
+ | 7)other land mask specificity | ||
+ | 8)use emissivity for each landcover type to determine actual temperature instead of brightness temperature | ||
Output 1: | Output 1: | ||
Line 14: | Line 17: | ||
b) fsca - values are 0 and 0.15 to 1. Product has had the following masks applied | b) fsca - values are 0 and 0.15 to 1. Product has had the following masks applied | ||
c) masks 7 bands: | c) masks 7 bands: | ||
− | 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] | ||
2) shadow mask (all bands < 0.10) | 2) shadow mask (all bands < 0.10) | ||
3) water mask (all bands < 0.10 & NLCD indicates water) note: this isn't really necessary given the prior mask but the inverse gives us lake ice and we also know where the water isn't snow covered. | 3) water mask (all bands < 0.10 & NLCD indicates water) note: this isn't really necessary given the prior mask but the inverse gives us lake ice and we also know where the water isn't snow covered. | ||
Line 24: | Line 28: | ||
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) | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
== 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 11:36, 6 May 2010
TM/ETM+
To be added: 1)set Tom's -9999's to NaN (-9999 might be set in TMSCAG IDL script 2)fVEG by merging multiple TMSCAG runs 3)populate database Karl database with file locations for Landsat 5 and 7 4)pre-processing function that skips when the output already exists 5)post-processing with option for subset to be saved in specific location 6)water mask should be a lake ice output 7)other land mask specificity 8)use emissivity for each landcover type to determine actual temperature instead of brightness temperature
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) shadow mask (all bands < 0.10) 3) water mask (all bands < 0.10 & NLCD indicates water) note: this isn't really necessary given the prior mask but the inverse gives us lake ice and we also know where the water isn't snow covered. 4) "other land" - herbaceous wetlands sometime come up as snow, this is optionally ?calculated and applied? but saved 5) 3 band saturation mask indicating combination of saturation that result in different TMSCAG "runs" 6) optional cloud mask (calculated for scene only applied w/ flag - rarely used) 7) temperature mask from band 6, emissivity of snow is high using brightness temperature for now i) surface reflectance (6 bands) k) brightness temperature j) RGB - bands 5,4,2 (stretch version of surface reflectance)
MSS/TM crossover 1985-1987
[[2]]