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I have downloaded images from Landsat 7 ETM+ SLC-off with corresponding gap mask. Which is the best method for using it with ArcGIS 10?

I tried the mask and statistical method described in ArcGIS help but I have some troubles, (after I apply the mask function, the statistical function need the input raster that is somewhere in a temporary file that can't access it.)

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    Are you using Landsat 7 images mainly for display purposes or for scientific purposes? What is your area of interest and what was the source of your image downloads? – Aaron Jan 27 '14 at 22:22
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    scientific, now im working with flood analysis, and rainwater harvesting. yet im not a advenced user. the source was the USGS - Landsat 7 ETM+ SLC-off imagery , why Spot images are to expensive. i think there is a significant diference working with gap filled that no filled, therefore im asking, and also would like to know how is solved. – erichnagy Jan 27 '14 at 23:20
  • If you're not looking for legacy data, Landsat-8 imagery is now available and has excellent coverage now that's it's completed so many orbits. – Radar Jan 28 '14 at 18:11
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    Also, for scientific purposes you are best to avoid Landsat-7 unless absolutely necessary as the data quality is very low and you can't correct it much beyond merely making it look reasonable. – Radar Jan 28 '14 at 18:12
  • the problem is that im using 2012 images (high flood inundation in my workzone), and landsat 8 began on 2013. im trying Aaron tips. also i try removing the gaps, and lets see if works for my project. – erichnagy Jan 28 '14 at 20:38
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For some alternatives to ArcGIS, the USGS offers several solutions to deal with the Landsat 7 ETM+ gaps.

Additionally, GRASS provides functionality that may be of interest to you, including:

Creates a composite raster map layer by using known category values from one (or more) map layer(s) to fill in areas of "no data" in another map layer.

Fills no-data areas in raster maps using spline interpolation.

For a QGIS/GDAL solution, use gdal_fillnodata which is available in QGIS at: Raster > Analysis > Fill nodata

Fill raster regions by interpolation from edges

  • ok, i take a look. but for arcgis is no method know? – erichnagy Jan 28 '14 at 15:40
  • ok, i tried again with the mask function, and the statistical function, and i have this img42.com/1inKt+ .the first a sector with the gaps, the second with statistical function (Row 7 and column 1) then saved and again statistical function (Row 7 and column 1) that is the third image. its pretty close i think. but only a half of the map is good. with the Qgis i have some troubles with the options they have. – erichnagy Jan 29 '14 at 19:43

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