Difference between revisions of "QGIS/C2/Downloading-GIS-Datasets/English"

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Line 4: Line 4:
 
||'''Narration'''
 
||'''Narration'''
 
|-  
 
|-  
−
|| '''Slide Number 1'''
+
 
 +
||'''Slide Number 1'''
  
 
'''Title Slide'''
 
'''Title Slide'''
−
|| Welcome to this tutorial on '''Downloading GIS Datasets'''
+
|| Welcome to this tutorial on '''Downloading GIS Datasets'''.
  
 
|-
 
|-
−
|| '''Slide Number 2'''
+
||'''Slide Number 2'''
  
 
'''Learning Objectives'''
 
'''Learning Objectives'''
 
|| In this tutorial, we will learn
 
|| In this tutorial, we will learn
  
−
* About GIS
+
* About '''GIS'''
 
* Download '''vector dataset''' from '''Natural Earth Data''' website.
 
* Download '''vector dataset''' from '''Natural Earth Data''' website.
−
* View '''vector data''' in QGIS.
+
* View '''vector data''' in '''QGIS'''.
−
* Download '''raster dataset''' from Bhuvan website.
+
* Download '''raster dataset''' from '''Bhuvan''' website, and
−
* View '''raster data''' in QGIS.
+
* View '''raster data''' in '''QGIS'''.
−
 
+
−
 
+
  
 
|-
 
|-
−
|| '''Slide Number 3'''
+
||'''Slide Number 3'''
  
 
'''System Requirement'''
 
'''System Requirement'''
−
|| To record this tutorial, I am using,
+
|| To record this tutorial, I am using
  
−
 
+
* '''Ubuntu Linux''' OS version 16.04
−
* '''Ubuntu Linux''' OS version 14.04
+
 
* '''QGIS''' version 2.18
 
* '''QGIS''' version 2.18
−
* '''Mozilla Firefox''' browser version 54.0
+
* '''Mozilla Firefox''' browser version 54.0 and
−
* Working internet connection.
+
* A working '''Internet''' connection
−
 
+
−
 
+
  
 
|-
 
|-
−
|| '''Slide Number 4'''
+
||'''Slide Number 4'''
  
 
'''Pre-requisites'''
 
'''Pre-requisites'''
  
 +
https://www.nationalgeographic.org/encyclopedia/geographic-information-system-gis/
  
−
'''https://www.nationalgeographic.org/encyclopedia/geographic-information-system-gis/'''
+
|| To follow this tutorial, knowledge about '''GIS''' is desired, but not essential.
−
|| To follow this tutorial,
+
−
 
+
−
 
+
−
Knowledge about '''GIS''' is desired, but not essential.
+
  
  
 
For more information about '''GIS''', please visit the given link.
 
For more information about '''GIS''', please visit the given link.
−
 
−
 
−
 
  
 
|-
 
|-
−
|| '''Slide Number 5'''
+
||'''Slide Number 5'''
  
 
'''Datasets'''
 
'''Datasets'''
−
|| All the datasets required for this tutorial are available in Code files link.
+
|| All the '''datasets''' required for this tutorial are available in '''Code files''' link.
  
 
|-
 
|-
−
|| '''Slide Number 6'''
+
||'''Slide Number 6'''
  
 
'''About GIS'''
 
'''About GIS'''
−
|| About '''GIS''',
+
|| About '''GIS'''
−
 
+
  
 
* '''GIS''' stands for '''Geographic Information System.'''
 
* '''GIS''' stands for '''Geographic Information System.'''
−
 
+
* It is a system for capturing, storing, querying, analyzing and displaying '''geospatial data'''.
−
* It is a system for capturing, storing, querying, analyzing and displaying geospatial data.
+
−
 
+
−
 
+
  
 
|-
 
|-
−
|| '''Slide Number 7'''
+
||'''Slide Number 7'''
  
 
'''Spatial Data'''
 
'''Spatial Data'''
Line 81: Line 67:
  
  
−
Let us download vector dataset from internet.
+
Let us download '''vector dataset''' from '''Internet'''.
  
 
|-
 
|-
−
|| '''Open Firefox/Chrome web browser.'''
+
||'''Open Firefox/Chrome web browser.'''
  
 
Type [http://www.naturalearthdata.com/ www.naturalearthdata.com]
 
Type [http://www.naturalearthdata.com/ www.naturalearthdata.com]
  
 +
|| Open any web browser.
  
  
−
|| Open any web browser
+
In the '''address bar''', type http://www.naturalearthdata.com
  
  
−
<u>In the address bar, t</u>ype [http://www.naturalearthdata.com/ www.naturalearthdata.com].</u>
+
Press '''Enter'''.
  
 +
|-
 +
||Click on '''Downloads''' link
  
−
Press Enter.
 
  
−
|-
 
−
|| Click on '''Downloads''' tab
 
  
 +
|| '''Natural Earth data''' website opens.
  
  
−
|| Natural Earth Data website opens.
+
Click on '''Downloads''' link.
  
 +
|-
 +
||
  
−
<u>Click on '''Downloads''' link.</u>
+
Scroll down
  
−
<u>Downloads page opens.</u>
+
|| '''Downloads''' page opens.
  
−
<u>Scroll down the page.</u>
+
 
 +
Scroll down the page.
  
 
|-
 
|-
−
|| Point towards the scales.
+
||Point towards the '''scales'''.
  
 
Point towards the details.
 
Point towards the details.
−
|| You can see three different scales of dataset.
+
|| You can see three different '''scales''' of '''dataset'''.
  
  
−
Large, medium and small.
+
'''Large, Medium''' and '''Small'''.
  
 
|-
 
|-
−
|| Click on '''Cultural '''button, under '''Large scale data.'''
+
||Under '''Large scale data''' >> Click on '''Cultural '''button
  
  
 
Scroll down
 
Scroll down
−
|| Let us download a dataset for demostration.
+
|| Let us download a '''dataset''' for demonstration.
  
  
Line 132: Line 122:
  
 
|-
 
|-
−
|| Scroll webpage.
+
||Scroll down the webpage.
 
|| A webpage opens.
 
|| A webpage opens.
  
Line 139: Line 129:
  
  
−
Here, we can see various available datasets.
+
Here, we can see various available '''datasets'''.
  
 
|-
 
|-
−
|| Click on '''Download countries''' tab.
+
||Click on '''Download countries''' tab.
−
|| Let us download the country administration boundary files.
+
|| Let us download the '''country administration boundary files'''.
  
  
−
Under heading''' Admin 0 – Countries,'''
+
Under heading''' Admin zero hyphen Countries,''' click on''' Download countries''' button.
−
 
+
−
 
+
−
Click on''' Download countries''' button.
+
  
 
|-
 
|-
−
|| Point to dilog box.
+
||Point to the dialog box.
  
  
−
Selct '''Save''' file option.
+
Select '''Save''' file option.
  
  
−
Click on '''OK'''.
+
Click on '''OK''' button.
−
|| A dialog-box opens which prompts you to save the file.
+
|| A dialog-box opens, which prompts you to save the file.
  
  
−
Selct '''Save''' file option.
+
Select '''Save''' file option.
  
  
Line 168: Line 155:
  
 
|-
 
|-
−
|| Open Downloads folder and point the zip file.
+
||Open Downloads folder and point the zip file.
 
|| The process of download begins.
 
|| The process of download begins.
  
  
−
On my system, zip file downloads to the downloads folder.
+
On my system, '''zip file''' downloads to the '''Downloads''' folder.
  
 
|-
 
|-
−
|| Right-click to extract the contents.
+
||Right-click to extract the contents.
−
|| Extract the contents of the zip file.
+
|| Extract the contents of the '''zip file'''.
  
  
Line 182: Line 169:
  
 
|-
 
|-
−
|| Double-click to open the folder  
+
||Double-click to open the folder  
  
 
Point to all the files.
 
Point to all the files.
Line 191: Line 178:
  
  
−
This is a vector type of dataset.
+
This is a '''vector type''' of '''dataset'''.
  
 
|-
 
|-
−
|| '''Slide Number 8'''
+
||'''Slide Number 8'''
  
 
'''Spatial Data-Vector Data'''
 
'''Spatial Data-Vector Data'''
−
|| About Vector data.
+
|| About '''Vector data'''.
−
 
+
−
 
+
−
 
+
−
* '''Discrete features '''such as''' '''wells, roads and land-use types is '''Vector Data.'''<br/>
+
−
 
+
−
* Vector data can be of point, line or polygon format.
+
−
 
+
  
 +
* Discrete features such as wells, roads and land-use types is '''Vector Data.'''
 +
* '''Vector data''' can be of point, line or polygon format.
  
 
|-
 
|-
−
|| Cursor on slide.
+
||Cursor on slide.
−
|| Let us open '''QGIS '''and view one of the downloaded files.
+
|| Let us open '''QGIS'''and view one of the downloaded files.
  
 
|-
 
|-
−
|| Double-click on QGIS icon.
+
||Double-click on QGIS icon.
  
 
Cursor on the interface.
 
Cursor on the interface.
−
|| Here, I have already opened QGIS interface.
+
|| Here, I have already opened '''QGIS''' interface.
  
 
|-
 
|-
−
|| Click on layeron the menu bar.
+
||Click on '''layer''' on the '''menu bar'''.
  
−
Click on add layer
+
Click on add '''layer'''.
  
−
Click on add vector layer
+
Click on add '''vector layer'''.
  
 +
|| Click on, ''' Layer menu''' on the '''menu bar'''.
  
  
−
|| Click on''' Layer menu''' on the menu bar.
+
From the '''menu''' options, select '''Add Layer.'''
  
  
−
From the menu options, select '''Add Layer.'''
+
From the '''sub-menu''', click on '''Add Vector Layer''' option.
−
 
+
−
 
+
−
From the sub-menu click on '''Add Vector Layer.'''
+
  
 
|-
 
|-
−
|| Point to '''Add Vector Layer''' dialog-box .
+
||Point to '''Add Vector Layer''' dialog-box .
  
  
Line 242: Line 222:
  
  
−
Select '''File''' as '''Source type.'''
+
Select '''File''' as '''Source type''', '''System'''as '''Encoding'''.
−
 
+
−
 
+
−
'''System '''as''' Encoding .'''
+
−
 
+
−
 
+
−
 
+
  
 
|-
 
|-
−
|| Click on browse.
+
||Click on '''Browse'''.
−
 
+
−
 
+
−
Locate the folder ne_10m_admin_0_countries.
+
−
 
+
−
 
+
−
 
+
−
|| Under '''Source''' heading, click on '''Browse '''button.
+
−
 
+
  
−
Navigate to the '''admin countries''' folder,
 
  
−
downloaded from the '''natural earth data''' website.
+
Locate the folder '''ne_10m_admin_0_countries'''.
  
 +
|| Under '''Source''' heading, click on '''Browse''' button.
  
  
 +
Navigate to the '''admin countries''' folder downloaded from the '''Natural Earth data''' website.
  
 
|-
 
|-
−
|| From the folder, select the file, ne_10m_populated_countries.shp
+
||From the folder, select the file '''ne_10m_populated_countries.shp'''
−
 
+
−
 
+
−
Click''' Open'''
+
  
  
 +
Click''' Open''' button.
  
 
|| From the contents of the folder, select the file with '''.shp''' extension.
 
|| From the contents of the folder, select the file with '''.shp''' extension.
  
  
−
Click on '''Open '''button.
+
Click on '''Open''' button.
  
 
|-
 
|-
−
|| Click Open in, '''Add vector laye'''r dialog-box.
+
||Click '''Open''' in '''Add vector layer''' dialog-box.
  
  
−
Point to themap on canvas.
+
Point to the map on canvas.
−
|| In the '''Add vector laye'''r dialog-box, click on''' Open '''button.
+
|| In the '''Add vector layer''' dialog-box, click on '''Open''' button.
−
 
+
−
 
+
−
A world map opens on the canvas.
+
−
 
+
  
  
 +
A world map opens on the '''canvas'''.
  
 
|-
 
|-
−
|| Click on '''Project''' in the menu bar.
+
||Click on '''Project''' in the '''menu bar'''.
  
  
 
Scroll down click on '''Save'''.
 
Scroll down click on '''Save'''.
−
 
−
 
  
 
|| Save the map.
 
|| Save the map.
  
  
−
Click on '''Project''' in the menu bar.
+
Click on '''Project''' in the '''menu bar'''.
  
  
−
Scroll down click on '''Save '''button.
+
Scroll down, click on '''Save''' button.
  
 
|-
 
|-
−
|| In the File name text box, type '''Map-1'''.
+
||In the '''File name''' text box, type '''Map-1'''.
  
  
Line 317: Line 277:
  
  
−
Point to '''Map-1.qgs''' on the desktop.
+
Point to '''Map-1.qgs''' on the '''Desktop'''.
−
|| In the dialog-box name the file as '''Map-1'''.
+
|| In the dialog-box, name the file as '''Map hyphen 1'''.
  
  
−
I will save it on the desktop.  
+
I will save it on the '''Desktop'''.  
  
  
−
Click on '''Save '''button.
+
Click on '''Save''' button.
  
  
−
The map will be saved as '''Map-1.qgs''' on the desktop.
+
The map will be saved as '''Map hyphen 1 dot qgs''' on the '''Desktop'''.
  
 
|-
 
|-
−
|| '''Slide Number 9'''
+
||'''Slide Number 9'''
  
 
'''Spatial Data - Raster Data'''
 
'''Spatial Data - Raster Data'''
−
|| About Raster Data.
+
|| About '''Raster Data'''.
  
−
 
+
* Continuous features that exist spatially between observations is '''Raster Data'''.  
−
 
+
−
* Continuous features''' '''that exist spatially betwen observations is '''Raster Data'''.<br/>
+
  
 
* '''Raster data''' is made up of cells in row and column format.
 
* '''Raster data''' is made up of cells in row and column format.
−
 
−
 
  
 
|-
 
|-
−
|| Cursor on slide
+
||Cursor on slide
−
|| Let's download raster dataset from '''Bhuvan''' website.
+
|| Let us download '''raster dataset''' from '''Bhuvan''' website.
  
 
|-
 
|-
−
|| '''Slide Number 10'''
+
||'''Slide Number 10'''
  
 
'''Bhuvan Website Link'''
 
'''Bhuvan Website Link'''
Line 354: Line 310:
  
 
'''http://bhuvan.nrsc.gov.in/data/download/index.php'''
 
'''http://bhuvan.nrsc.gov.in/data/download/index.php'''
−
|| '''Bhuvan''' Platform was created by ISRO.
+
|| '''Bhuvan Platform''' was created by '''ISRO'''.
  
  
−
The website hosts various data collected by Indian remote sensing satellites.
+
The website hosts various data collected by Indian '''remote sensing''' satellites.
  
  
−
Here is the link to download '''raster''' dataset from '''Bhuvan''' website.
+
Here is the link to download '''raster dataset''' from '''Bhuvan''' website.
  
 
|-
 
|-
−
|| Show the Address bar.
+
||Show the Address bar.
−
|| Open the Bhuvan website link in any web browser.
+
|| Open the '''Bhuvan''' website link in any web browser.
  
 
'''Open Data Archive''' page opens.
 
'''Open Data Archive''' page opens.
  
 
|-
 
|-
−
|| Point to''' Select Category'''>>''' Satellite/Sensor '''radio button.
+
||Point to''' Select Category'''>>''' Satellite/Sensor '''radio button.
−
|| On the left panel under '''Select Category''',  
+
|| On the left panel under '''Select Category''', select '''Satellite/Sensor''' option.
−
 
+
−
 
+
−
select '''Satellite/Sensor''' option.
+
  
 
|-
 
|-
−
|| Select '''Resourcesat-1: LISS-3.'''
+
||Select '''Resourcesat-1: LISS-3.'''
  
  
 
Point to the India map highlighted in yellow tiles.
 
Point to the India map highlighted in yellow tiles.
−
|| Under '''Select Subcategory '''drop down, choose '''Resourcesat-1: LISS-III '''option.
+
|| Under '''Select Subcategory''' drop down, choose '''Resourcesat-1: LISS-III '''option.
  
  
−
Scroll down, under select area, choose '''Bounding Box''' .
+
Scroll down, under '''Select Area''', choose '''Bounding Box''' .
−
 
+
−
 
+
−
Here, We have to enter the latitude and longitude of the location.
+
−
 
+
  
  
 +
Here, we have to enter the latitude and longitude of the location.
  
 
|-
 
|-
−
|| Cursor on '''Select Area''' panel, '''Bounding Box''' tab .
+
||Cursor on '''Select Area''' panel, '''Bounding Box''' tab .
  
 +
|| Let us download '''data''' for '''Mumbai''' region.
  
  
−
|| Let us download data for '''Mumbai''' region.
+
Use '''google maps''' to find the latitude and longitude of a particular region.
−
 
+
−
 
+
−
Use google maps to find the latitude and longitude of a particular region.
+
  
 
|-
 
|-
−
|| Type Min longitude 72.75 E
+
||
−
 
+
Type '''Minimum longitude 72.75 E'''
−
Type Max longitude 73 E
+
−
 
+
−
Type Min latitude 19 N
+
  
−
Type Max latitude 19.25 N
+
Type '''Maximum longitude 73 E'''
  
−
Click select
+
Type '''Minimum latitude 19 N'''
  
 +
Type '''Maximum latitude 19.25 N'''
  
 +
Click '''select'''
  
−
|| For Mumbai region, enter the following data.
+
|| For '''Mumbai''' region, enter the following '''data'''.
  
  
−
Minimum Longitude 72.75  
+
'''Minimum Longitude 72.75'''
  
−
Maximum Longitude 73  
+
'''Maximum Longitude 73'''
  
−
Minimum Latitude 19  
+
'''Minimum Latitude 19'''
  
−
Maximum Latitude 19.25  
+
'''Maximum Latitude 19.25'''
  
  
Line 429: Line 376:
  
 
|-
 
|-
−
|| Point to the highlighted tile.
+
||Point to the highlighted tile.
−
|| A tile over Mumbai will be highlighted.
+
|| A '''tile''' over '''Mumbai''' will be highlighted.
  
 
|-
 
|-
−
|| Click '''Next''' button.
+
||Click '''Next''' button.
  
  
 
Cursor on the list of Tiles.
 
Cursor on the list of Tiles.
−
|| Click on '''Next '''button at the bottom of the page.
+
|| Click on '''Next''' button at the bottom of the page.
  
  
Line 443: Line 390:
  
 
|-
 
|-
−
|| Point on '''Date of Pass''' column.
+
||Point on '''Date of Pass''' column.
  
  
  
−
|| Select the most recent imagery by looking into the '''Date of Pass''' column.
+
|| Select the most recent imagery by looking into the '''Date of Pass column'''.
  
  
−
'''24Dec15''' is the most recent out of the available datasets.
+
'''24Dec15''' is the most recent out of the available '''datasets'''.
  
 
|-
 
|-
−
|| Click on the check box.
+
||Click on the check box.
  
  
−
Click '''Download '''button.
+
Click '''Download'''button.
−
|| Click on the check box on this row under '''Selection for backlog'''.
+
|| Click on the check box on this row under '''Selection for backlog.'''
  
  
Line 463: Line 410:
  
 
|-
 
|-
−
|| Click on '''OK'''.
+
||Click on '''OK'''.
  
 +
|| '''Bhuvan''' will prompt you to '''login'''.
  
 +
Click on '''OK''' button.
  
−
|| Bhuvan will prompt you to login, click on '''OK'''.
+
|-
−
 
+
||
−
 
+
|| A dialog-box opens.
−
A dialog-box opens.
+
  
 
|-
 
|-
−
|| Click on '''New User'''.
+
||Click on '''New User'''.
−
|| If it is your first time in using '''Bhuvan''',
+
|| If it is your first time in using '''Bhuvan''', click on '''New User''' link to create a new '''account'''.
−
 
+
−
 
+
−
click on '''New User''' link to create a new account.
+
  
 
|-
 
|-
−
|| Point to '''Account and Profile Information''' page.
+
||Point to '''Account and Profile Information''' page.
  
  
Line 487: Line 432:
  
  
−
Fill in the appropriate details as shown.  
+
Fill the appropriate details as shown.
  
 +
Click on '''Submit''' button.
  
−
Click on '''Submit '''button'''.'''
 
  
−
 
+
You will receive an email from the '''Bhuvan''' team with '''Login Id''' and '''Password'''.
−
You will receive an email from the '''Bhuvan''' team with login Id and Password.
+
  
 
|-
 
|-
−
|| Enter user name
+
||Enter '''username'''
  
−
Enter password
+
Enter '''password'''
  
 
Click '''Login'''
 
Click '''Login'''
−
 
−
 
  
 
|| I have already completed the registration process.
 
|| I have already completed the registration process.
  
  
−
So I will Click on '''Click here to login''' link.
+
So I will click on '''Click here to login''' link.
  
  
−
I will enter '''Username''' and '''Password''' and click on '''Login '''button.
+
I will enter '''Username''' and '''Password''' and click on '''Login''' button.
  
 
|-
 
|-
−
|| Click '''Download '''from the list of available Tiles against '''24Dec15'''
+
||Click '''Download '''from the list of available Tiles against '''24Dec15'''
−
|| Again, in the tiles panel for '''24Dec15 '''row, Click on the '''Download''' button.
+
|| Again, in the '''tiles panel''' for '''24Dec15 row''', click on the '''Download''' button.
  
 
|-
 
|-
−
|| Point to download dialog-box.
+
||Point to download dialog-box.
−
|| Download of the zip file begins.
+
|| Download of the '''zip file''' begins.
  
  
−
A dialog-box opens which prompts you to save the file.
+
A dialog-box opens, which prompts you to save the file.
  
 
|-
 
|-
−
|| Select '''Save File''' radio button >> click '''OK'''.
+
||Select '''Save File''' radio button >> click '''OK'''.
  
  
 
Point to the files in the folder.
 
Point to the files in the folder.
−
|| Select '''Save File''' option and click on '''OK '''button.
+
|| Select '''Save File''' option and click on '''OK''' button.
  
  
−
The zip file will be saved to the downloads folder.  
+
The '''zip file''' will be saved to the '''Downloads''' folder.  
  
 
|-
 
|-
−
|| Right-click on the folder and select '''Extract Here '''option.
+
||Right-click on the folder and select '''Extract Here '''option.
  
  
Line 547: Line 489:
  
  
−
This folder has '''raster dataset''' for Mumbai region.
+
This folder has '''raster dataset''' for '''Mumbai''' region.
  
 
|-
 
|-
−
|| On the QGIS window,
+
||On the QGIS window,
  
 
Click on '''New icon '''on the tool bar.
 
Click on '''New icon '''on the tool bar.
Line 559: Line 501:
  
  
−
Click on '''New icon''' at the top-left corner on the tool bar.  
+
Click on '''New icon''' in the top-left corner on the '''tool bar'''.
  
 +
|-
 +
||Click on''' Layer>> Add Layer>>Add Raster Layer'''
 +
|| Click on''' Layer''' on the '''menu bar'''.
  
  
 +
From the '''menu''' options, select '''Add Layer.'''
 +
 +
 +
From the '''sub-menu,''' click on '''Add Raster Layer option.'''
  
 
|-
 
|-
−
|| Click on''' Layer>> Add Layer>>Add Raster Layer'''
+
||'''Open GDL Supported Raster Data Source''' dialog-box opens.
−
|| Click on''' Layer''' on the menu bar.
+
  
  
−
From the menu options, select '''Add Layer.'''
+
|| A dialog-box opens.
  
  
−
From the sub-menu click on '''Add Raster Layer option.'''
+
Navigate to the folder we had downloaded from '''Bhuvan''' website.
  
 
|-
 
|-
−
|| '''Open GDL Supported Raster Data Source''' dialog-box opens.
+
||Navigate to the folder '''l3e43a1624dec15'''
−
 
+
−
 
+
−
Navigate to the folder
+
−
 
+
−
'''l3e43a1624dec15'''
+
  
  
Line 587: Line 530:
  
 
Click on '''Open.'''
 
Click on '''Open.'''
−
|| '''A '''dialog-box opens.
 
  
 +
|| Select the file '''24December15 hyphen BAND2 dot tif'''
  
−
Navigate to the folder, we had downloded from '''Bhuvan''' website.
 
  
−
 
+
Click on '''Open''' button.
−
Select the file, '''24December15-BAND2.tif'''
+
−
 
+
−
 
+
−
Click on '''Open'''.
+
  
 
|-
 
|-
−
|| Point to the image on '''QGIS''' window.
+
||Point to the image on '''QGIS''' window.
−
|| On '''QGIS''' canvas, you will see the '''raster''' map of Mumbai region.
+
|| On '''QGIS canvas''', you will see the '''raster''' map of '''Mumbai''' region.
−
 
+
−
 
+
−
 
+
  
 
|-
 
|-
−
|| '''Slide Number 11'''
+
||'''Slide Number 11'''
  
 
Summary
 
Summary
Line 613: Line 548:
 
In this tutorial we have learnt,
 
In this tutorial we have learnt,
  
−
* About GIS
+
* About '''GIS'''
−
* Downloaded vector data from Natural Earth data website
+
* Downloaded '''vector data''' from '''Natural Earth dataset'''
−
* Viewed the vector dataset in QGIS.
+
* Viewed the '''vector dataset''' in '''QGIS'''.
−
* Downloaded raster data from Bhuvan website
+
* Downloaded '''raster data''' from '''Bhuvan''' website
−
* Viewed the raster dataset in QGIS.
+
* Viewed the '''raster dataset''' in '''QGIS'''.
−
 
+
−
 
+
  
 
|-
 
|-
−
|| '''Slide Number 12'''
+
||'''Slide Number 12'''
  
 
Assignment 1
 
Assignment 1
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|| For the assignment-
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From '''Natural Earth Data''' website,
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download, '''Medium Scale,''' '''Physical data '''for Rivers and Lakes''' '''
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*From '''Natural Earth Data''' website, download '''Medium Scale,''' '''Physical data '''for '''Rivers and Lakes'''
  
 
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|| '''Slide Number 13'''
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||'''Slide Number 13'''
  
 
'''Assignment 2'''
 
'''Assignment 2'''
 
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* Another popular website to download GIS data is Openstreetmap data website.<br/>
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*Another popular website to download '''GIS data''' is '''Openstreetmap data''' website.
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* Explore Openstreetmap data website
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http://openstreetmapdata.com/
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* Explore '''Openstreetmap data''' website http://openstreetmapdata.com/
  
 
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|| '''Slide Number 14'''
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||'''Slide Number 14'''
  
 
'''About Spoken Tutorial project'''
 
'''About Spoken Tutorial project'''
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|| * The video at the following link summarizes the Spoken Tutorial project.
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||  
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* The video at the following link summarizes the Spoken Tutorial project.
 
* Please download and watch it.
 
* Please download and watch it.
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|| '''Slide number 15'''
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||'''Slide number 15'''
  
 
'''Spoken Tutorial workshops'''
 
'''Spoken Tutorial workshops'''
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|| '''Slide Number 16'''
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||'''Slide Number 16:'''
  
 
'''Forum for specific questions:'''
 
'''Forum for specific questions:'''
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Someone from our team will answer them.
 
Someone from our team will answer them.
  
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||Do you have questions in THIS Spoken Tutorial?
  
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Please visit this site.
  
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|| Do you have questions in THIS Spoken Tutorial?
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Choose the minute and second where you have the question.
  
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Please visit this site
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Explain your question briefly.
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Choose the minute and second where you have the question
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Explain your question briefly
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Someone from our team will answer them.
 
Someone from our team will answer them.
  
 
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|| '''Slide Number 17'''
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||'''Slide Number 17:'''
  
 
'''Acknowledgement'''
 
'''Acknowledgement'''
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|| Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.
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||Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.
  
  
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|| This tutorial is contributed by Prajwal. M from Sahyadri college of engineering and Snehalatha from IIT Bombay.
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||This tutorial is contributed by Prajwal M. from Sahyadri College of Engineering and Snehalatha from IIT Bombay.
  
 
Thank you for joining.
 
Thank you for joining.
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Latest revision as of 11:58, 13 July 2018

Visual Cue Narration
Slide Number 1

Title Slide

Welcome to this tutorial on Downloading GIS Datasets.
Slide Number 2

Learning Objectives

In this tutorial, we will learn
  • About GIS
  • Download vector dataset from Natural Earth Data website.
  • View vector data in QGIS.
  • Download raster dataset from Bhuvan website, and
  • View raster data in QGIS.
Slide Number 3

System Requirement

To record this tutorial, I am using
  • Ubuntu Linux OS version 16.04
  • QGIS version 2.18
  • Mozilla Firefox browser version 54.0 and
  • A working Internet connection
Slide Number 4

Pre-requisites

https://www.nationalgeographic.org/encyclopedia/geographic-information-system-gis/

To follow this tutorial, knowledge about GIS is desired, but not essential.


For more information about GIS, please visit the given link.

Slide Number 5

Datasets

All the datasets required for this tutorial are available in Code files link.
Slide Number 6

About GIS

About GIS
  • GIS stands for Geographic Information System.
  • It is a system for capturing, storing, querying, analyzing and displaying geospatial data.
Slide Number 7

Spatial Data

Spatial Data is of two types, Vector Data and Raster Data.


Let us download vector dataset from Internet.

Open Firefox/Chrome web browser.

Type www.naturalearthdata.com

Open any web browser.


In the address bar, type http://www.naturalearthdata.com


Press Enter.

Click on Downloads link


Natural Earth data website opens.


Click on Downloads link.

Scroll down

Downloads page opens.


Scroll down the page.

Point towards the scales.

Point towards the details.

You can see three different scales of dataset.


Large, Medium and Small.

Under Large scale data >> Click on Cultural button


Scroll down

Let us download a dataset for demonstration.


Under Large scale data, click on Cultural button.

Scroll down the webpage. A webpage opens.


Scroll down the page.


Here, we can see various available datasets.

Click on Download countries tab. Let us download the country administration boundary files.


Under heading Admin zero hyphen Countries, click on Download countries button.

Point to the dialog box.


Select Save file option.


Click on OK button.

A dialog-box opens, which prompts you to save the file.


Select Save file option.


Click on OK button.

Open Downloads folder and point the zip file. The process of download begins.


On my system, zip file downloads to the Downloads folder.

Right-click to extract the contents. Extract the contents of the zip file.


Right-click and select Extract Here option.

Double-click to open the folder

Point to all the files.

Double-click on the extracted folder.


Here we see many files with different file extensions.


This is a vector type of dataset.

Slide Number 8

Spatial Data-Vector Data

About Vector data.
  • Discrete features such as wells, roads and land-use types is Vector Data.
  • Vector data can be of point, line or polygon format.
Cursor on slide. Let us open QGISand view one of the downloaded files.
Double-click on QGIS icon.

Cursor on the interface.

Here, I have already opened QGIS interface.
Click on layer on the menu bar.

Click on add layer.

Click on add vector layer.

Click on, Layer menu on the menu bar.


From the menu options, select Add Layer.


From the sub-menu, click on Add Vector Layer option.

Point to Add Vector Layer dialog-box .


Add Vector Layer dialog-box opens.


Select File as Source type, Systemas Encoding.

Click on Browse.


Locate the folder ne_10m_admin_0_countries.

Under Source heading, click on Browse button.


Navigate to the admin countries folder downloaded from the Natural Earth data website.

From the folder, select the file ne_10m_populated_countries.shp


Click Open button.

From the contents of the folder, select the file with .shp extension.


Click on Open button.

Click Open in Add vector layer dialog-box.


Point to the map on canvas.

In the Add vector layer dialog-box, click on Open button.


A world map opens on the canvas.

Click on Project in the menu bar.


Scroll down click on Save.

Save the map.


Click on Project in the menu bar.


Scroll down, click on Save button.

In the File name text box, type Map-1.


Click on Save.


Point to Map-1.qgs on the Desktop.

In the dialog-box, name the file as Map hyphen 1.


I will save it on the Desktop.


Click on Save button.


The map will be saved as Map hyphen 1 dot qgs on the Desktop.

Slide Number 9

Spatial Data - Raster Data

About Raster Data.
  • Continuous features that exist spatially between observations is Raster Data.
  • Raster data is made up of cells in row and column format.
Cursor on slide Let us download raster dataset from Bhuvan website.
Slide Number 10

Bhuvan Website Link


http://bhuvan.nrsc.gov.in/data/download/index.php

Bhuvan Platform was created by ISRO.


The website hosts various data collected by Indian remote sensing satellites.


Here is the link to download raster dataset from Bhuvan website.

Show the Address bar. Open the Bhuvan website link in any web browser.

Open Data Archive page opens.

Point to Select Category>> Satellite/Sensor radio button. On the left panel under Select Category, select Satellite/Sensor option.
Select Resourcesat-1: LISS-3.


Point to the India map highlighted in yellow tiles.

Under Select Subcategory drop down, choose Resourcesat-1: LISS-III option.


Scroll down, under Select Area, choose Bounding Box .


Here, we have to enter the latitude and longitude of the location.

Cursor on Select Area panel, Bounding Box tab . Let us download data for Mumbai region.


Use google maps to find the latitude and longitude of a particular region.

Type Minimum longitude 72.75 E

Type Maximum longitude 73 E

Type Minimum latitude 19 N

Type Maximum latitude 19.25 N

Click select

For Mumbai region, enter the following data.


Minimum Longitude 72.75

Maximum Longitude 73

Minimum Latitude 19

Maximum Latitude 19.25


Click on Select button.

Point to the highlighted tile. A tile over Mumbai will be highlighted.
Click Next button.


Cursor on the list of Tiles.

Click on Next button at the bottom of the page.


A list of available Tiles opens.

Point on Date of Pass column.


Select the most recent imagery by looking into the Date of Pass column.


24Dec15 is the most recent out of the available datasets.

Click on the check box.


Click Downloadbutton.

Click on the check box on this row under Selection for backlog.


Click on Download button on this row.

Click on OK. Bhuvan will prompt you to login.

Click on OK button.

A dialog-box opens.
Click on New User. If it is your first time in using Bhuvan, click on New User link to create a new account.
Point to Account and Profile Information page.


Account and Profile Information page opens.


Fill the appropriate details as shown.

Click on Submit button.


You will receive an email from the Bhuvan team with Login Id and Password.

Enter username

Enter password

Click Login

I have already completed the registration process.


So I will click on Click here to login link.


I will enter Username and Password and click on Login button.

Click Download from the list of available Tiles against 24Dec15 Again, in the tiles panel for 24Dec15 row, click on the Download button.
Point to download dialog-box. Download of the zip file begins.


A dialog-box opens, which prompts you to save the file.

Select Save File radio button >> click OK.


Point to the files in the folder.

Select Save File option and click on OK button.


The zip file will be saved to the Downloads folder.

Right-click on the folder and select Extract Here option.


Double click on the extacted folder.


Point on the files in the folder.

Extract the contents of the zip file.


Double click on the extacted folder.


This folder has raster dataset for Mumbai region.

On the QGIS window,

Click on New icon on the tool bar.

Let us now open a file in QGIS.


Open a new window.


Click on New icon in the top-left corner on the tool bar.

Click on Layer>> Add Layer>>Add Raster Layer Click on Layer on the menu bar.


From the menu options, select Add Layer.


From the sub-menu, click on Add Raster Layer option.

Open GDL Supported Raster Data Source dialog-box opens.


A dialog-box opens.


Navigate to the folder we had downloaded from Bhuvan website.

Navigate to the folder l3e43a1624dec15


Select the file, L3-NE43A16-094-059-24Dec15-BAND2.tif


Click on Open.

Select the file 24December15 hyphen BAND2 dot tif


Click on Open button.

Point to the image on QGIS window. On QGIS canvas, you will see the raster map of Mumbai region.
Slide Number 11

Summary

Let's summarize.

In this tutorial we have learnt,

  • About GIS
  • Downloaded vector data from Natural Earth dataset
  • Viewed the vector dataset in QGIS.
  • Downloaded raster data from Bhuvan website
  • Viewed the raster dataset in QGIS.
Slide Number 12

Assignment 1

For the assignment-
  • From Natural Earth Data website, download Medium Scale, Physical data for Rivers and Lakes
Slide Number 13

Assignment 2

  • Another popular website to download GIS data is Openstreetmap data website.
Slide Number 14

About Spoken Tutorial project

  • The video at the following link summarizes the Spoken Tutorial project.
  • Please download and watch it.
Slide number 15

Spoken Tutorial workshops

The Spoken Tutorial Project team conducts workshops and gives certificates.


For more details, please write to us.

Slide Number 16:

Forum for specific questions:

Do you have questions in THIS Spoken Tutorial?

Please visit this site

Choose the minute and second where you have the question

Explain your question briefly

Someone from our team will answer them.

Do you have questions in THIS Spoken Tutorial?

Please visit this site.

Choose the minute and second where you have the question.

Explain your question briefly.

Someone from our team will answer them.

Slide Number 17:

Acknowledgement

Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.


More information on this mission is available at this link.

This tutorial is contributed by Prajwal M. from Sahyadri College of Engineering and Snehalatha from IIT Bombay.

Thank you for joining.

Contributors and Content Editors

Nancyvarkey, Snehalathak

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