remove duplicated words

03-spatial-operations.qmd

@@ -75,7 +75,7 @@ Another unique aspect of spatial objects is distance: all spatial objects are re
 
 Spatial operations on raster objects include subsetting---covered in @sec-spatial-subsetting-raster---and merging several raster 'tiles' into a single object, as demonstrated in @sec-merging-rasters.
 Map algebra covers a range of operations that modify raster cell values, with or without reference to surrounding cell values.
-The concept of map algebra, vital for many applications, is introduced in @sec-map-algebra; local, focal, and zonal map algebra operations are covered in sections @sec-raster-local-operations, @sec-focal-operations, and @sec-zonal-operations, respectively. 
+The concept of map algebra, vital for many applications, is introduced in @sec-map-algebra; local, focal, and zonal map algebra operations are covered in @sec-raster-local-operations, @sec-focal-operations, and @sec-zonal-operations, respectively. 
 Global map algebra operations, which generate summary statistics representing an entire raster dataset, and distance calculations on rasters, are discussed in Section @sec-global-operations-and-distances.
 
 ::: callout-note

07-read-write.qmd

@@ -57,7 +57,7 @@ These topics are covered in @sec-retrieving-open-data, which describes several g
 To further ease data access, a number of packages for downloading geographic data have been developed, as demonstrated in @sec-geographic-data-packages.
 
 There are many geographic file formats, each of which has pros and cons, described in @sec-file-formats.
-The process of reading and writing files efficiently is covered in Sections @sec-data-input and @sec-data-output, respectively.
+The process of reading and writing files efficiently is covered in @sec-data-input and @sec-data-output, respectively.
 
 ## Retrieving open data {#sec-retrieving-open-data}
 

08-mapping.qmd

@@ -80,7 +80,7 @@ This has changed with the emergence of open-source mapping software such as mapp
 Maps are also often the best way to present the findings of geocomputational research in a way that is accessible.
 Map making is therefore a critical part of geocomputation and its emphasis not only on describing, but also changing the world.
 
-Basic static display of vector layers in Python is done with the `.plot` method or the `rasterio.plot.show` function, for vector layers and rasters, as we saw in Sections @sec-vector-layers and @sec-using-rasterio, respectively.
+Basic static display of vector layers in Python is done with the `.plot` method or the `rasterio.plot.show` function, for vector layers and rasters, as we saw in @sec-vector-layers and @sec-using-rasterio, respectively.
 Other, more advanced uses of these methods, were also encountered in subsequent chapters, when demonstrating the various outputs we got.
 In this chapter, we provide a comprehensive summary of the most useful workflows of these two methods for creating static maps (@sec-static-maps).
 Static maps can be easily shared and viewed (whether digitally or in print), however they can only convey as much information as a static image can.