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

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||'''Narration'''
 
||'''Narration'''
 
|-  
 
|-  
−
| | '''Slide Number 1'''
 
  
−
'''Title Slide'''
+
||'''Slide Number 1'''
−
|| Welcome to this tutorial on '''Downloading GIS Datasets'''  
+
  
−
|-
+
'''Title Slide'''
−
| | '''Slide Number 2'''  
+
|| Welcome to this tutorial on '''Downloading GIS Datasets'''.
  
−
'''Learning Objectives'''  
+
|-
−
|| In this tutorial, we will learn
+
||'''Slide Number 2'''
  
−
* About GIS
+
'''Learning Objectives'''
−
* Download '''vector dataset''' from '''Natural Earth Data''' website.
+
|| In this tutorial, we will learn
−
* View '''vector data''' in QGIS.
+
−
* Download '''raster dataset''' from Bhuvan website.
+
−
* View '''raster data''' in QGIS.
+
  
 +
* 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'''
−
| | '''Slide Number 3'''  
+
|| To record this tutorial, I am using
  
−
'''System Requirement'''  
+
* '''Ubuntu Linux''' OS version 16.04
−
|| To record this tutorial, I am using,
+
* '''QGIS''' version 2.18
 +
* '''Mozilla Firefox''' browser version 54.0 and
 +
* A working '''Internet''' connection
  
 +
|-
 +
||'''Slide Number 4'''
  
−
* '''Ubuntu Linux''' OS version 16.04
+
'''Pre-requisites'''
−
* '''QGIS''' version 2.18
+
−
* '''Mozilla Firefox''' browser version 54.0
+
−
* Working internet connection.
+
  
 +
https://www.nationalgeographic.org/encyclopedia/geographic-information-system-gis/
  
 +
|| To follow this tutorial, knowledge about '''GIS''' is desired, but not essential.
  
−
|-
 
−
| | '''Slide Number 4'''
 
  
−
'''Pre-requisites'''  
+
For more information about '''GIS''', please visit the given link.
  
 +
|-
 +
||'''Slide Number 5'''
  
−
'''https://www.nationalgeographic.org/encyclopedia/geographic-information-system-gis/'''  
+
'''Datasets'''
−
|| To follow this tutorial,
+
|| All the '''datasets''' required for this tutorial are available in '''Code files''' link.
  
 +
|-
 +
||'''Slide Number 6'''
  
−
Knowledge about '''GIS''' is desired, but not essential.
+
'''About GIS'''
 +
|| About '''GIS'''
  
 +
* '''GIS''' stands for '''Geographic Information System.'''
 +
* It is a system for capturing, storing, querying, analyzing and displaying '''geospatial data'''.
  
−
For more information about '''GIS''', please visit the given link.
+
|-
−
+
||'''Slide Number 7'''
  
 +
'''Spatial Data'''
 +
|| '''Spatial Data''' is of two types, '''Vector Data '''and''' Raster Data'''.
  
  
−
|-
+
Let us download '''vector dataset''' from '''Internet'''.
−
| | '''Slide Number 5'''  
+
  
−
'''Datasets'''  
+
|-
−
|| All the datasets required for this tutorial are available in Code files link.
+
||'''Open Firefox/Chrome web browser.'''
  
−
|-
+
Type [http://www.naturalearthdata.com/ www.naturalearthdata.com]
−
| | '''Slide Number 6'''
+
  
−
'''About GIS'''
+
|| Open any web browser.
−
|| About '''GIS''',
+
  
  
−
* '''GIS''' stands for '''Geographic Information System.'''
+
In the '''address bar''', type http://www.naturalearthdata.com
  
−
* It is a system for capturing, storing, querying, analyzing and displaying geospatial data.
 
  
 +
Press '''Enter'''.
  
 +
|-
 +
||Click on '''Downloads''' link
  
−
|-
 
−
| | '''Slide Number 7'''
 
  
−
'''Spatial Data'''
 
−
|| '''Spatial Data''' is of two types, '''Vector Data '''and''' Raster Data'''.
 
  
 +
|| '''Natural Earth data''' website opens.
  
−
Let us download vector dataset from internet.
 
  
−
|-
+
Click on '''Downloads''' link.
−
| | '''Open Firefox/Chrome web browser.'''  
+
  
−
Type [http://www.naturalearthdata.com/ www.naturalearthdata.com]
+
|-
 +
||
  
 +
Scroll down
  
 +
|| '''Downloads''' page opens.
  
−
|| Open any web browser
 
−
 
−
 
−
<u>In the address bar, t</u>ype [http://www.naturalearthdata.com/ www.naturalearthdata.com].</u>
 
−
 
−
 
−
Press Enter.
 
−
 
−
|-
 
−
| | Click on '''Downloads''' tab
 
−
 
−
 
−
 
−
|| Natural Earth Data website opens.
 
−
 
−
 
−
Click on '''Downloads''' link.
 
−
 
−
Downloads page opens.
 
  
 
Scroll down the page.
 
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 datasets.  
+
|| 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.
  
  
−
Under '''Large scale data''', click on '''Cultural''' button.  
+
Under '''Large scale data''', click on '''Cultural''' button.
  
−
|-  
+
|-
−
| | Scroll webpage.  
+
||Scroll down the webpage.
−
|| A webpage opens.  
+
|| A webpage opens.
  
  
−
Scroll down the page.  
+
Scroll down the page.
  
  
−
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.
  
 +
|-
 +
||Point to the dialog box.
  
−
Click on''' Download countries''' button.
 
  
−
|-
+
Select '''Save''' file option.
−
| | Point to dilog box.  
+
  
−
 
−
Selct '''Save''' file option.
 
  
 +
Click on '''OK''' button.
 +
|| A dialog-box opens, which prompts you to save the file.
  
−
Click on '''OK'''.
 
−
|| A dialog-box opens which prompts you to save the file.
 
  
 +
Select '''Save''' file option.
  
−
Selct '''Save''' file option.
 
  
 +
Click on '''OK''' button.
  
−
Click on '''OK''' button.  
+
|-
 +
||Open Downloads folder and point the zip file.
 +
|| The process of download begins.
  
−
|-
 
−
| | Open Downloads folder and point the zip file.
 
−
|| 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.
 +
|| Extract the contents of the '''zip file'''.
  
−
|-
 
−
| | Right-click to extract the contents.
 
−
|| Extract the contents of the zip file.
 
  
 +
Right-click and select '''Extract Here''' option.
  
−
Right-click and select '''Extract Here''' option.
+
|-
 +
||Double-click to open the folder
  
−
|-
+
Point to all the files.
−
| | Double-click to open the folder  
+
|| Double-click on the extracted folder.
  
−
Point to all the files.
 
−
|| Double-click on the extracted folder.
 
  
 +
Here we see many files with different file extensions.
  
−
Here we see many files with different file extensions.
 
  
 +
This is a '''vector type''' of '''dataset'''.
  
−
This is a vector type of dataset.
+
|-
 +
||'''Slide Number 8'''
  
−
|-  
+
'''Spatial Data-Vector Data'''
−
| | '''Slide Number 8'''  
+
|| About '''Vector data'''.
  
−
'''Spatial Data-Vector Data'''  
+
* Discrete features such as wells, roads and land-use types is '''Vector Data.'''
−
|| About Vector data.  
+
* '''Vector data''' can be of point, line or polygon format.
  
 +
|-
 +
||Cursor on slide.
 +
|| Let us open '''QGIS'''and view one of the downloaded files.
  
 +
|-
 +
||Double-click on QGIS icon.
  
−
* '''Discrete features '''such as''' '''wells, roads and land-use types is '''Vector Data.'''<br/>
+
Cursor on the interface.
 +
|| Here, I have already opened '''QGIS''' interface.
  
−
* Vector data can be of point, line or polygon format.  
+
|-
 +
||Click on '''layer''' on the '''menu bar'''.
  
 +
Click on add '''layer'''.
  
−
+
Click on add '''vector layer'''.
−
|-
+
−
| | Cursor on slide.
+
−
|| Let us open '''QGIS '''and view one of the downloaded files.  
+
  
−
|-
+
|| Click on, ''' Layer menu''' on the '''menu bar'''.
−
| | Double-click on QGIS icon.  
+
  
−
Cursor on the interface.
 
−
|| Here, I have already opened QGIS interface.
 
  
−
|-
+
From the '''menu''' options, select '''Add Layer.'''
−
| | Click on layeron the menu bar.  
+
  
−
Click on add layer
 
  
−
Click on add vector layer
+
From the '''sub-menu''', click on '''Add Vector Layer''' option.
  
 +
|-
 +
||Point to '''Add Vector Layer''' dialog-box .
  
  
−
|| Click on''' Layer menu''' on the menu bar.
 
  
 +
|| '''Add Vector Layer''' dialog-box opens.
  
−
From the menu options, select '''Add Layer.'''
 
  
 +
Select '''File''' as '''Source type''', '''System'''as '''Encoding'''.
  
−
From the sub-menu click on '''Add Vector Layer.'''  
+
|-
 +
||Click on '''Browse'''.
  
−
|-
 
−
| | Point to '''Add Vector Layer''' dialog-box .
 
  
 +
Locate the folder '''ne_10m_admin_0_countries'''.
  
 +
|| Under '''Source''' heading, click on '''Browse''' button.
  
−
|| '''Add Vector Layer''' dialog-box opens.
 
  
 +
Navigate to the '''admin countries''' folder downloaded from the '''Natural Earth data''' website.
  
−
Select '''File''' as '''Source type.'''  
+
|-
 +
||From the folder, select the file '''ne_10m_populated_countries.shp'''
  
  
−
'''System '''as''' Encoding .'''
+
Click''' Open''' button.
  
 +
|| From the contents of the folder, select the file with '''.shp''' extension.
  
  
 +
Click on '''Open''' button.
  
−
|-  
+
|-
−
| | Click on browse.  
+
||Click '''Open''' in '''Add vector layer''' dialog-box.
  
  
−
Locate the folder ne_10m_admin_0_countries.  
+
Point to the map on canvas.
 +
|| In the '''Add vector layer''' dialog-box, click on '''Open''' button.
  
  
 +
A world map opens on the '''canvas'''.
  
−
|| Under '''Source''' heading, click on '''Browse '''button.  
+
|-
 +
||Click on '''Project''' in the '''menu bar'''.
  
  
−
Navigate to the '''admin countries''' folder,
+
Scroll down click on '''Save'''.
  
−
downloaded from the '''natural earth data''' website.  
+
|| Save the map.
  
  
 +
Click on '''Project''' in the '''menu bar'''.
  
  
−
|-
+
Scroll down, click on '''Save''' button.
−
| | From the folder, select the file, ne_10m_populated_countries.shp
+
  
 +
|-
 +
||In the '''File name''' text box, type '''Map-1'''.
  
−
Click''' Open'''
 
  
 +
Click on '''Save'''.
  
  
−
|| From the contents of the folder, select the file with '''.shp''' extension.  
+
Point to '''Map-1.qgs''' on the '''Desktop'''.
 +
|| In the dialog-box, name the file as '''Map hyphen 1'''.
  
  
−
Click on '''Open '''button.  
+
I will save it on the '''Desktop'''.  
  
−
|-
 
−
| | Click Open in, '''Add vector layer''' dialog-box.
 
  
 +
Click on '''Save''' button.
  
−
Point to themap on canvas.
 
−
|| In the '''Add vector layer''' dialog-box, click on''' Open '''button.
 
  
 +
The map will be saved as '''Map hyphen 1 dot qgs''' on the '''Desktop'''.
  
−
A world map opens on the canvas.
+
|-
 +
||'''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.
  
−
|-  
+
|-
−
| | Click on '''Project''' in the menu bar.  
+
||Cursor on slide
 +
|| Let us download '''raster dataset''' from '''Bhuvan''' website.
  
 +
|-
 +
||'''Slide Number 10'''
  
−
Scroll down click on '''Save'''.
+
'''Bhuvan Website Link'''
  
  
 +
'''http://bhuvan.nrsc.gov.in/data/download/index.php'''
 +
|| '''Bhuvan Platform''' was created by '''ISRO'''.
  
−
|| Save the map.
 
  
 +
The website hosts various data collected by Indian '''remote sensing''' satellites.
  
−
Click on '''Project''' in the menu bar.
 
  
 +
Here is the link to download '''raster dataset''' from '''Bhuvan''' website.
  
−
Scroll down click on '''Save''' button.  
+
|-
 +
||Show the Address bar.
 +
|| Open the '''Bhuvan''' website link in any web browser.
  
−
|-
+
'''Open Data Archive''' page opens.
−
| | In the File name text box, type '''Map-1'''.  
+
  
 +
|-
 +
||Point to''' Select Category'''>>''' Satellite/Sensor '''radio button.
 +
|| On the left panel under '''Select Category''', select '''Satellite/Sensor''' option.
  
−
Click on '''Save'''.
+
|-
 +
||Select '''Resourcesat-1: LISS-3.'''
  
  
−
Point to '''Map-1.qgs''' on the desktop.
+
Point to the India map highlighted in yellow tiles.
−
|| In the dialog-box name the file as '''Map-1'''.  
+
|| Under '''Select Subcategory''' drop down, choose '''Resourcesat-1: LISS-III '''option.
  
  
−
I will save it on the desktop.  
+
Scroll down, under '''Select Area''', choose '''Bounding Box''' .
  
  
−
Click on '''Save '''button.  
+
Here, we have to enter the latitude and longitude of the location.
  
 +
|-
 +
||Cursor on '''Select Area''' panel, '''Bounding Box''' tab .
  
−
The map will be saved as '''Map-1.qgs''' on the desktop.  
+
|| Let us download '''data''' for '''Mumbai''' region.
  
−
|-
 
−
| | '''Slide Number 9'''
 
  
−
'''Spatial Data - Raster Data'''  
+
Use '''google maps''' to find the latitude and longitude of a particular region.
−
|| About Raster Data.  
+
  
 +
|-
 +
||
 +
Type '''Minimum longitude 72.75 E'''
  
 +
Type '''Maximum longitude 73 E'''
  
−
* Continuous features''' '''that exist spatially betwen observations is '''Raster Data'''.<br/>
+
Type '''Minimum latitude 19 N'''
  
−
* '''Raster data''' is made up of cells in row and column format.
+
Type '''Maximum latitude 19.25 N'''
  
 +
Click '''select'''
  
 +
|| For '''Mumbai''' region, enter the following '''data'''.
  
−
|-
 
−
| | Cursor on slide
 
−
|| Let's download raster dataset from '''Bhuvan''' website.
 
  
−
|-
+
'''Minimum Longitude 72.75'''  
−
| | '''Slide Number 10'''  
+
  
−
'''Bhuvan Website Link'''  
+
'''Maximum Longitude 73'''
  
 +
'''Minimum Latitude 19'''
  
−
'''http://bhuvan.nrsc.gov.in/data/download/index.php'''  
+
'''Maximum Latitude 19.25'''  
−
|| '''Bhuvan''' Platform was created by ISRO.
+
  
  
−
The website hosts various data collected by Indian remote sensing satellites.  
+
Click on '''Select '''button.
  
 +
|-
 +
||Point to the highlighted tile.
 +
|| A '''tile''' over '''Mumbai''' will be highlighted.
  
−
Here is the link to download '''raster''' dataset from '''Bhuvan''' website.  
+
|-
 +
||Click '''Next''' button.
  
−
|-
 
−
| | Show the Address bar.
 
−
|| Open the Bhuvan website link in any web browser.
 
  
−
'''Open Data Archive''' page opens.  
+
Cursor on the list of Tiles.
 +
|| Click on '''Next''' button at the bottom of the page.
  
−
|-
 
−
| | Point to''' Select Category'''>>''' Satellite/Sensor '''radio button.
 
−
|| On the left panel under '''Select Category''',
 
  
 +
A list of available '''Tiles''' opens.
  
−
select '''Satellite/Sensor''' option.  
+
|-
 +
||Point on '''Date of Pass''' column.
  
−
|-
 
−
| | Select '''Resourcesat-1: LISS-3.'''
 
  
  
−
Point to the India map highlighted in yellow tiles.
+
|| Select the most recent imagery by looking into the '''Date of Pass column'''.
−
|| Under '''Select Subcategory '''drop down, choose '''Resourcesat-1: LISS-III '''option.  
+
  
  
−
Scroll down, under select area, choose '''Bounding Box''' .  
+
'''24Dec15''' is the most recent out of the available '''datasets'''.
  
 +
|-
 +
||Click on the check box.
  
−
Here, We have to enter the latitude and longitude of the location.
 
  
 +
Click '''Download'''button.
 +
|| Click on the check box on this row under '''Selection for backlog.'''
  
  
 +
Click on '''Download''' button on this row.
  
−
|-  
+
|-
−
| | Cursor on '''Select Area''' panel, '''Bounding Box''' tab .  
+
||Click on '''OK'''.
  
 +
|| '''Bhuvan''' will prompt you to '''login'''.
  
 +
Click on '''OK''' button.
  
−
|| Let us download data for '''Mumbai''' region.  
+
|-
 +
||
 +
|| 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'''.
  
−
Use google maps to find the latitude and longitude of a particular region.  
+
|-
 +
||Point to '''Account and Profile Information''' page.
  
−
|-
 
−
| | Type Min longitude 72.75 E
 
  
−
Type Max longitude 73 E
 
  
−
Type Min latitude 19 N
+
|| '''Account and Profile Information''' page opens.
  
−
Type Max latitude 19.25 N
 
  
−
Click select
+
Fill the appropriate details as shown.
  
 +
Click on '''Submit''' button.
  
  
−
|| For Mumbai region, enter the following data.  
+
You will receive an email from the '''Bhuvan''' team with '''Login Id''' and '''Password'''.
  
 +
|-
 +
||Enter '''username'''
  
−
Minimum Longitude 72.75
+
Enter '''password'''
  
−
Maximum Longitude 73
+
Click '''Login'''
  
−
Minimum Latitude 19
+
|| I have already completed the registration process.
  
−
Maximum Latitude 19.25
 
  
 +
So I will click on '''Click here to login''' link.
  
−
Click on '''Select ''' button.
 
  
−
|-
+
I will enter '''Username''' and '''Password''' and click on '''Login''' button.
−
| | Point to the highlighted tile.
+
−
|| A tile over Mumbai will be highlighted.  
+
  
−
|-  
+
|-
−
| | Click '''Next''' 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.
  
−
Cursor on the list of Tiles.
 
−
|| Click on '''Next '''button at the bottom of the page.
 
  
 +
A dialog-box opens, which prompts you to save the file.
  
−
A list of available '''Tiles''' opens.  
+
|-
 +
||Select '''Save File''' radio button >> click '''OK'''.
  
−
|-
 
−
| | Point on '''Date of Pass''' column.
 
  
 +
Point to the files in the folder.
 +
|| Select '''Save File''' option and click on '''OK''' button.
  
  
−
|| Select the most recent imagery by looking into the '''Date of Pass''' column.  
+
The '''zip file''' will be saved to the '''Downloads''' folder.  
  
 +
|-
 +
||Right-click on the folder and select '''Extract Here '''option.
  
−
'''24Dec15''' is the most recent out of the available datasets.
 
  
−
|-
+
Double click on the extacted folder.
−
| | Click on the check box.  
+
  
  
−
Click '''Download '''button.  
+
Point on the files in the folder.
−
|| Click on the check box on this row under '''Selection for backlog'''.  
+
|| Extract the contents of the zip file.
  
  
−
Click on '''Download''' button on this row.  
+
Double click on the extacted folder.
  
−
|-
 
−
| | Click on '''OK'''.
 
  
 +
This folder has '''raster dataset''' for '''Mumbai''' region.
  
−
+
|-
−
|| Bhuvan will prompt you to login, click on '''OK'''.
+
||On the QGIS window,
  
 +
Click on '''New icon '''on the tool bar.
 +
|| Let us now open a file in '''QGIS'''.
  
−
A dialog-box opens.
 
  
−
|-
+
Open a new window.
−
| | Click on '''New User'''.  
+
−
|| If it is your first time in using '''Bhuvan''',
+
  
  
−
click on '''New User''' link at the bottom of the page, to create a new account.  
+
Click on '''New icon''' in the top-left corner on the '''tool bar'''.
  
−
|-  
+
|-
−
| | Point to '''Account and Profile Information''' page.  
+
||Click on''' Layer>> Add Layer>>Add Raster Layer'''
 +
|| Click on''' Layer''' on the '''menu bar'''.
  
  
 +
From the '''menu''' options, select '''Add Layer.'''
  
−
|| '''Account and Profile Information''' page opens.
 
  
 +
From the '''sub-menu,''' click on '''Add Raster Layer option.'''
  
−
Fill in the appropriate details as shown.  
+
|-
 +
||'''Open GDL Supported Raster Data Source''' dialog-box opens.
  
  
−
Click on '''Submit '''button'''.'''
+
|| A dialog-box opens.
  
  
−
You will receive an email from the '''Bhuvan''' team with login Id and Password.  
+
Navigate to the folder we had downloaded from '''Bhuvan''' website.
  
−
|-  
+
|-
−
| | Enter user name
+
||Navigate to the folder '''l3e43a1624dec15'''
  
−
Enter password
 
  
−
Click '''Login'''  
+
Select the file,''' L3-NE43A16-094-059-24Dec15-BAND2.tif'''
  
  
 +
Click on '''Open.'''
  
−
|| I have already completed the registration process.
+
|| Select the file '''24December15 hyphen BAND2 dot tif'''
  
  
−
So I will Click on '''Click here to login''' link.  
+
Click on '''Open''' button.
  
 +
|-
 +
||Point to the image on '''QGIS''' window.
 +
|| On '''QGIS canvas''', you will see the '''raster''' map of '''Mumbai''' region.
  
−
I will enter '''Username''' and '''Password''' and click on '''Login '''button.
+
|-
 +
||'''Slide Number 11'''
  
−
|-
+
Summary
−
| | Click '''Download '''from the list of available Tiles against '''24Dec15'''
+
|| Let's summarize.
−
|| Again, in the tiles panel for '''24Dec15 '''row, Click on the '''Download''' button.  
+
  
−
|-
+
In this tutorial we have learnt,
−
| | Point to download dialog-box.
+
−
|| Download of the zip file begins.
+
  
 +
* 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'''.
  
−
A dialog-box opens which prompts you to save the file.
+
|-
 +
||'''Slide Number 12'''
  
−
|-
+
Assignment 1
−
| | Select '''Save File''' radio button >> click '''OK'''.
+
|| For the assignment-
  
 +
*From '''Natural Earth Data''' website, download '''Medium Scale,''' '''Physical data '''for '''Rivers and Lakes'''
  
−
Point to the files in the folder.
+
|-
−
|| Select '''Save File''' option and click on '''OK '''button.
+
||'''Slide Number 13'''
  
 +
'''Assignment 2'''
 +
||
 +
*Another popular website to download '''GIS data''' is '''Openstreetmap data''' website.
  
−
The zip file will be saved to the downloads folder.  
+
* Explore '''Openstreetmap data''' website http://openstreetmapdata.com/
  
−
|-  
+
|-
−
| | Right-click on the folder and select '''Extract Here '''option.
+
||'''Slide Number 14'''
  
−
 
+
'''About Spoken Tutorial project'''
−
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''' at 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.
+
−
 
+
−
 
+
−
Navigate to the folder
+
−
 
+
−
'''l3e43a1624dec15'''
+
−
 
+
−
 
+
−
Select the file,''' L3-NE43A16-094-059-24Dec15-BAND2.tif'''
+
−
 
+
−
 
+
−
Click on '''Open.'''
+
−
|| '''A '''dialog-box opens.
+
−
 
+
−
 
+
−
Navigate to the folder, we had downloded from '''Bhuvan''' website.
+
−
 
+
−
 
+
−
Select the file, '''24December15-BAND2.tif'''
+
−
 
+
−
 
+
−
Click on '''Open'''.
+
−
 
+
−
|-
+
−
| | 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 data website
+
−
* 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.<br/>
+
* The video at the following link summarizes the Spoken Tutorial project.
−
 
+
* Please download and watch it.
−
* Explore Openstreetmap data website
+
−
 
+
−
http://openstreetmapdata.com/
+
−
 
+
−
 
+
−
 
+
−
 
+
−
|-
+
−
| | '''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.  
+
  
 +
|-
 +
||'''Slide number 15'''
  
−
For more details, please write to us.  
+
'''Spoken Tutorial workshops'''
 +
|| The '''Spoken Tutorial Project '''team conducts workshops and gives certificates.
  
−
|-
 
−
| | '''Slide Number 16'''
 
  
−
'''Forum for specific questions:'''
+
For more details, please write to us.
  
−
Do you have questions in THIS Spoken Tutorial?
+
|-
 +
||'''Slide Number 16:'''
  
−
Please visit this site
+
'''Forum for specific questions:'''
  
−
Choose the minute and second where you have the question
+
Do you have questions in THIS Spoken Tutorial?
  
−
Explain your question briefly
+
Please visit this site
  
−
Someone from our team will answer them.
+
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?  
+
||Do you have questions in THIS Spoken Tutorial?
  
−
Please visit this site  
+
Please visit this site.
  
−
Choose the minute and second where you have the question  
+
Choose the minute and second where you have the question.
  
−
Explain your question briefly  
+
Explain your question briefly.
  
−
Someone from our team will answer them.  
+
Someone from our team will answer them.
  
−
|-  
+
|-
−
| | '''Slide Number 17'''  
+
||'''Slide Number 17:'''
  
−
'''Acknowledgement'''  
+
'''Acknowledgement'''
−
|| Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.  
+
||Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.
  
  
−
More information on this mission is available at this link.  
+
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.  
+
||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.
  
 
|}
 
|}

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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