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## explore the MOD35 data downloaded and gridded by the DAAC
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setwd("~/acrobates/projects/interp/data/modis/mod35")
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library(raster)
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library(rgdal)
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f=list.files(pattern="*.hdf")
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Sys.setenv(GEOL_AS_GCPS = "PARTIAL")
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GDALinfo(f[1])
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system(paste("gdalinfo",f[1]))
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GDALinfo("HDF4_EOS:EOS_SWATH:\"MOD35_L2.A2000100.1445.006.2012252024758.hdf\":mod35:Cloud_Mask")
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system("gdalinfo HDF4_EOS:EOS_SWATH:\"MOD35_L2.A2000100.1445.006.2012252024758.hdf\":mod35:Cloud_Mask | tail -n 200")
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system("gdalwarp -overwrite -geoloc -order 2 -r near -s_srs \"EPSG:4326\" HDF4_EOS:EOS_SWATH:\"MOD35_L2.A2000100.1445.006.2012252024758.hdf\":mod35:Cloud_Mask cloudmask.tif")
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system("gdalwarp -overwrite -r near -s_srs \"EPSG:4326\" HDF4_EOS:EOS_SWATH:\"MOD35_L2.A2000100.1445.006.2012252024758.hdf\":mod35:Cloud_Mask:1 cloudmask2.tif")
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## get tile
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tile=raster("~/acrobates/projects/interp/data/modis/mod06/summary/MOD06_h09v04.nc",varname="CER")
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h11v08=extent(tile)
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r=raster(f[1])
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extent(r)
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st=lapply(f[1:10],raster)
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str=lapply(2:length(st),function(i) union(extent(st[[i-1]]),extent(st[[i]])))[[length(st)-1]]
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str=union(extent(h11v08),str)
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b1=brick(lapply(st,function(stt) {
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x=crop(alignExtent(stt,str),h11v08)
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return(x)
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}))
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c=brick(f[1:10])
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