Practical No.8(B): Sampling Raster Data using Points or Polygons
Version Used: QGIS 2.8.1
The Practical is divided into 2 parts:
1) Sampling Raster Data using Points
Files Used:
a) us.tmax_nohads_ll_20140525_float.tif
b) 2013_Gaz_ua_national.txt
Plugins:
The Point Sampling Tool Plugin collects polygon attributes and raster values from multiple layers at specified sampling points.
New File created during the Practical:
1)MaxTemp.shp
-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x
2) Sampling Raster Data using Polygons
a) us.tmax_nohads_ll_20140525_float.tif
b) tl_2013_us_county.zip
Plugins:
Zonal Statistics Plugin is used to calculate count, sum, mean of rasters for each polygon of a vector layer
New File created during the Practical:
1) counties.shp
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