Thursday 27 April 2017

gdal - Batch for Mosaic of MODIS Swath


I'm using gdalwarp to convert a large numbers MODIS Swath (MOD11, MOD06, MOD07) products to TIF and need to mosaic the output images with same day of year.


There is a example of output data:


MOD11_L2.A2014001.1300.006.2016179212636.tif MOD11_L2.A2014001.1305.006.2016179220648.tif MOD11_L2.A2014002.1205.006.2016179200050.tif MOD11_L2.A2014002.1210.006.2016179203811.tif MOD11_L2.A2014002.1345.006.2016179203914.tif MOD11_L2.A2014002.1350.006.2016179203951.tif MOD11_L2.A2014003.1250.006.2016180000700.tif MOD11_L2.A2014003.1255.006.2016180000720.tif etc.


The images have 1, 2, 3 or 4 archives. I'm trying to use the following script without sucess:



    #!/bin/bash
echo '==> Mosaic of MODIS Images'
g = 001
for f in *.tif
do
echo "==> Processing $f";
gdalbuildvrt ${f/.tif/.vrt} "*A2014"+$g+"*.tif"
gdalwarp -overwrite -of GTIFF -tps ${f/.tif/.vrt} Mosaic_${f/.tif/.vrt}.tif
g = g+1
done

echo '==> Script finished with sucess'
#done

Answer



I found the solution on another post showing how to batch the mosaic process with a python code:


    #!/usr/bin/env python
#coding: utf-8
from osgeo import gdal
import glob
for day in range(0, 32):
day = str('%0.3d' % day)

gdal.BuildVRT("MOD11_L2.A2014"+day+"_LST.vrt", glob.glob("MOD11_L2.A2014"+day+"*.tif"))

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