minor text and variable name updates

still need to fix the mask rasters image, not rendering

tutorials/Python/AOP/Lidar/intro-lidar/mask-rasters/mask-rasters-py.html

@@ -14624,7 +14624,7 @@ <h2 id="urlTitle:-mask-rasters-py">urlTitle: mask-rasters-py<a class="anchor-lin
 
 ### Download Data
 
-For this lesson, we will read in a Canopy Height Model data collected at NEON's <a href="https://www.neonscience.org/field-sites/teak" target="_blank">Lower Teakettle (TEAK)</a> site in California. This data is downloaded in the first part of the tutorial, using the Python `requests` package.
+For this lesson, we will read in Canopy Height Model data collected at NEON's <a href="https://www.neonscience.org/field-sites/teak" target="_blank">Lower Teakettle (TEAK)</a> site in California. This data is downloaded in the first part of the tutorial, using the Python `requests` package.
 
 </div><p><img src="http://neon-workwithdata.github.io/neon-data-institute-2016/images/spatialData/raster_masks.jpg" style="width: 750px;"/></p>
 
@@ -15058,11 +15058,11 @@ <h2 id="Mask-Data-by-Aspect-and-NDVI">Mask Data by Aspect and NDVI<a class="anch
 <div class="jp-CodeMirrorEditor jp-Editor jp-InputArea-editor" data-type="inline">
      <div class="CodeMirror cm-s-jupyter">
 <div class=" highlight hl-ipython3"><pre><span></span><span class="c1">#Now include additional requirement that slope is North-facing (i.e. aspectNS_array = 1)</span>
-<span class="n">ndvi_gtpt4_Nslope</span> <span class="o">=</span> <span class="n">ndvi_gtpt4</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
-<span class="n">ndvi_gtpt4_Nslope</span><span class="p">[</span><span class="n">aspect_reclass</span> <span class="o">!=</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">nan</span>
+<span class="n">ndvi_gtpt4_north</span> <span class="o">=</span> <span class="n">ndvi_gtpt4</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
+<span class="n">ndvi_gtpt4_north</span><span class="p">[</span><span class="n">aspect_reclass</span> <span class="o">!=</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">nan</span>
 
 <span class="n">fig</span><span class="p">,</span> <span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplots</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span><span class="mi">6</span><span class="p">))</span>
-<span class="n">plt</span><span class="o">.</span><span class="n">imshow</span><span class="p">(</span><span class="n">ndvi_gtpt4_Nslope</span><span class="p">,</span><span class="n">extent</span><span class="o">=</span><span class="n">ext</span><span class="p">)</span>
+<span class="n">plt</span><span class="o">.</span><span class="n">imshow</span><span class="p">(</span><span class="n">ndvi_gtpt4_north</span><span class="p">,</span><span class="n">extent</span><span class="o">=</span><span class="n">ext</span><span class="p">)</span>
 <span class="n">plt</span><span class="o">.</span><span class="n">colorbar</span><span class="p">();</span> <span class="n">plt</span><span class="o">.</span><span class="n">set_cmap</span><span class="p">(</span><span class="s1">&#39;RdYlGn&#39;</span><span class="p">);</span> 
 <span class="n">plt</span><span class="o">.</span><span class="n">title</span><span class="p">(</span><span class="s1">&#39;TEAK, North Facing &amp; NDVI &gt; 0.4&#39;</span><span class="p">)</span>
 <span class="n">ax</span><span class="o">=</span><span class="n">plt</span><span class="o">.</span><span class="n">gca</span><span class="p">();</span> <span class="n">ax</span><span class="o">.</span><span class="n">ticklabel_format</span><span class="p">(</span><span class="n">useOffset</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">style</span><span class="o">=</span><span class="s1">&#39;plain&#39;</span><span class="p">)</span> <span class="c1">#do not use scientific notation </span>
@@ -15100,6 +15100,7 @@ <h2 id="Mask-Data-by-Aspect-and-NDVI">Mask Data by Aspect and NDVI<a class="anch
 <span class="n">ndvi_gtpt4_south</span> <span class="o">=</span> <span class="n">ndvi_gtpt4</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
 <span class="n">ndvi_gtpt4_south</span><span class="p">[</span><span class="n">aspect_reclass</span> <span class="o">!=</span> <span class="mi">2</span><span class="p">]</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">nan</span>
 
+<span class="n">fig</span><span class="p">,</span> <span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplots</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span><span class="mi">6</span><span class="p">))</span>
 <span class="n">plt</span><span class="o">.</span><span class="n">imshow</span><span class="p">(</span><span class="n">ndvi_gtpt4_south</span><span class="p">,</span><span class="n">extent</span><span class="o">=</span><span class="n">ext</span><span class="p">)</span>
 <span class="n">plt</span><span class="o">.</span><span class="n">colorbar</span><span class="p">();</span> <span class="n">plt</span><span class="o">.</span><span class="n">set_cmap</span><span class="p">(</span><span class="s1">&#39;RdYlGn&#39;</span><span class="p">);</span> 
 <span class="n">plt</span><span class="o">.</span><span class="n">title</span><span class="p">(</span><span class="s1">&#39;TEAK, South Facing &amp; NDVI &gt; 0.4&#39;</span><span class="p">)</span>

tutorials/Python/AOP/Lidar/intro-lidar/mask-rasters/mask-rasters-py.ipynb

@@ -47,7 +47,7 @@
     "\n",
     "### Download Data\n",
     "\n",
-    "For this lesson, we will read in a Canopy Height Model data collected at NEON's <a href=\"https://www.neonscience.org/field-sites/teak\" target=\"_blank\">Lower Teakettle (TEAK)</a> site in California. This data is downloaded in the first part of the tutorial, using the Python `requests` package.\n",
+    "For this lesson, we will read in Canopy Height Model data collected at NEON's <a href=\"https://www.neonscience.org/field-sites/teak\" target=\"_blank\">Lower Teakettle (TEAK)</a> site in California. This data is downloaded in the first part of the tutorial, using the Python `requests` package.\n",
     "\n",
     "</div>\n",
     "\n",
@@ -342,11 +342,11 @@
    "outputs": [],
    "source": [
     "#Now include additional requirement that slope is North-facing (i.e. aspectNS_array = 1)\n",
-    "ndvi_gtpt4_Nslope = ndvi_gtpt4.copy()\n",
-    "ndvi_gtpt4_Nslope[aspect_reclass != 1] = np.nan\n",
+    "ndvi_gtpt4_north = ndvi_gtpt4.copy()\n",
+    "ndvi_gtpt4_north[aspect_reclass != 1] = np.nan\n",
     "\n",
     "fig, ax = plt.subplots(1, 1, figsize=(6,6))\n",
-    "plt.imshow(ndvi_gtpt4_Nslope,extent=ext)\n",
+    "plt.imshow(ndvi_gtpt4_north,extent=ext)\n",
     "plt.colorbar(); plt.set_cmap('RdYlGn'); \n",
     "plt.title('TEAK, North Facing & NDVI > 0.4')\n",
     "ax=plt.gca(); ax.ticklabel_format(useOffset=False, style='plain') #do not use scientific notation \n",
@@ -373,6 +373,7 @@
     "ndvi_gtpt4_south = ndvi_gtpt4.copy()\n",
     "ndvi_gtpt4_south[aspect_reclass != 2] = np.nan\n",
     "\n",
+    "fig, ax = plt.subplots(1, 1, figsize=(6,6))\n",
     "plt.imshow(ndvi_gtpt4_south,extent=ext)\n",
     "plt.colorbar(); plt.set_cmap('RdYlGn'); \n",
     "plt.title('TEAK, South Facing & NDVI > 0.4')\n",

tutorials/Python/AOP/Lidar/intro-lidar/mask-rasters/mask-rasters-py.md

@@ -36,7 +36,7 @@ After completing this tutorial, you will be able to:
 
 ### Download Data
 
-For this lesson, we will read in a Canopy Height Model data collected at NEON's <a href="https://www.neonscience.org/field-sites/teak" target="_blank">Lower Teakettle (TEAK)</a> site in California. This data is downloaded in the first part of the tutorial, using the Python `requests` package.
+For this lesson, we will read in Canopy Height Model data collected at NEON's <a href="https://www.neonscience.org/field-sites/teak" target="_blank">Lower Teakettle (TEAK)</a> site in California. This data is downloaded in the first part of the tutorial, using the Python `requests` package.
 
 </div>
 
@@ -224,11 +224,11 @@ rotatexlabels = plt.setp(ax.get_xticklabels(),rotation=90) #rotate x tick labels
 
 ```python
 #Now include additional requirement that slope is North-facing (i.e. aspectNS_array = 1)
-ndvi_gtpt4_Nslope = ndvi_gtpt4.copy()
-ndvi_gtpt4_Nslope[aspect_reclass != 1] = np.nan
+ndvi_gtpt4_north = ndvi_gtpt4.copy()
+ndvi_gtpt4_north[aspect_reclass != 1] = np.nan
 
 fig, ax = plt.subplots(1, 1, figsize=(6,6))
-plt.imshow(ndvi_gtpt4_Nslope,extent=ext)
+plt.imshow(ndvi_gtpt4_north,extent=ext)
 plt.colorbar(); plt.set_cmap('RdYlGn'); 
 plt.title('TEAK, North Facing & NDVI > 0.4')
 ax=plt.gca(); ax.ticklabel_format(useOffset=False, style='plain') #do not use scientific notation 
@@ -246,6 +246,7 @@ Let's also look at where NDVI > 0.4 on south facing slopes.
 ndvi_gtpt4_south = ndvi_gtpt4.copy()
 ndvi_gtpt4_south[aspect_reclass != 2] = np.nan
 
+fig, ax = plt.subplots(1, 1, figsize=(6,6))
 plt.imshow(ndvi_gtpt4_south,extent=ext)
 plt.colorbar(); plt.set_cmap('RdYlGn'); 
 plt.title('TEAK, South Facing & NDVI > 0.4')

tutorials/Python/AOP/Lidar/intro-lidar/mask-rasters/mask-rasters-py.py

@@ -39,7 +39,7 @@
 # 
 # ### Download Data
 # 
-# For this lesson, we will read in a Canopy Height Model data collected at NEON's <a href="https://www.neonscience.org/field-sites/teak" target="_blank">Lower Teakettle (TEAK)</a> site in California. This data is downloaded in the first part of the tutorial, using the Python `requests` package.
+# For this lesson, we will read in Canopy Height Model data collected at NEON's <a href="https://www.neonscience.org/field-sites/teak" target="_blank">Lower Teakettle (TEAK)</a> site in California. This data is downloaded in the first part of the tutorial, using the Python `requests` package.
 # 
 # </div>
 # 
@@ -240,11 +240,11 @@ def download_url(url,download_dir):
 
 
 #Now include additional requirement that slope is North-facing (i.e. aspectNS_array = 1)
-ndvi_gtpt4_Nslope = ndvi_gtpt4.copy()
-ndvi_gtpt4_Nslope[aspect_reclass != 1] = np.nan
+ndvi_gtpt4_north = ndvi_gtpt4.copy()
+ndvi_gtpt4_north[aspect_reclass != 1] = np.nan
 
 fig, ax = plt.subplots(1, 1, figsize=(6,6))
-plt.imshow(ndvi_gtpt4_Nslope,extent=ext)
+plt.imshow(ndvi_gtpt4_north,extent=ext)
 plt.colorbar(); plt.set_cmap('RdYlGn'); 
 plt.title('TEAK, North Facing & NDVI > 0.4')
 ax=plt.gca(); ax.ticklabel_format(useOffset=False, style='plain') #do not use scientific notation 
@@ -263,6 +263,7 @@ def download_url(url,download_dir):
 ndvi_gtpt4_south = ndvi_gtpt4.copy()
 ndvi_gtpt4_south[aspect_reclass != 2] = np.nan
 
+fig, ax = plt.subplots(1, 1, figsize=(6,6))
 plt.imshow(ndvi_gtpt4_south,extent=ext)
 plt.colorbar(); plt.set_cmap('RdYlGn'); 
 plt.title('TEAK, South Facing & NDVI > 0.4')