Difference between revisions of "QGIS/C2/Downloading-GIS-Datasets/English"
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||'''Narration''' | ||'''Narration''' | ||
|- | |- | ||
− | || '''Slide Number 1''' | + | |
+ | ||'''Slide Number 1''' | ||
'''Title Slide''' | '''Title Slide''' | ||
Line 10: | Line 11: | ||
|- | |- | ||
− | || '''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 | + | |
* '''QGIS''' version 2.18 | * '''QGIS''' version 2.18 | ||
− | * '''Mozilla Firefox''' browser version 54.0 | + | * '''Mozilla Firefox''' browser version 54.0 and |
− | * | + | * A working '''Internet''' connection |
− | + | ||
|- | |- | ||
− | || '''Slide Number 4''' | + | ||'''Slide Number 4''' |
'''Pre-requisites''' | '''Pre-requisites''' | ||
+ | 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, | + | |
− | + | ||
− | + | ||
− | + | ||
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 78: | Line 67: | ||
− | Let us download vector dataset from | + | 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. | ||
− | + | In the '''address bar''', type http://www.naturalearthdata.com | |
− | + | Press '''Enter'''. | |
+ | |- | ||
+ | ||Click on '''Downloads''' link | ||
− | |||
− | |||
− | |||
− | + | || '''Natural Earth data''' website opens. | |
− | || Natural Earth | + | |
Click on '''Downloads''' link. | Click on '''Downloads''' link. | ||
− | Downloads page opens. | + | |- |
+ | || | ||
+ | |||
+ | Scroll down | ||
+ | |||
+ | || '''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 dataset. | + | || You can see three different '''scales''' of '''dataset'''. |
− | Large, | + | '''Large, Medium''' and '''Small'''. |
|- | |- | ||
− | || | + | ||Under '''Large scale data''' >> Click on '''Cultural '''button |
Scroll down | Scroll down | ||
− | || Let us download a dataset for demonstration. | + | || Let us download a '''dataset''' for demonstration. |
Line 128: | Line 122: | ||
|- | |- | ||
− | || Scroll webpage. | + | ||Scroll down the webpage. |
|| A webpage opens. | || A webpage opens. | ||
Line 135: | 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 | + | Under heading''' Admin zero hyphen Countries,''' click on''' Download countries''' button. |
− | + | ||
− | + | ||
− | + | ||
|- | |- | ||
− | || Point to dialog box. | + | ||Point to the dialog box. |
Line 154: | Line 145: | ||
− | 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. |
Line 164: | 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 | + | 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 178: | 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 187: | 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 | + | || 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. | + | ||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 layer on 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'''. | ||
− | |||
+ | 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 235: | Line 222: | ||
− | Select '''File''' as '''Source type | + | Select '''File''' as '''Source type''', '''System'''as '''Encoding'''. |
− | + | ||
− | + | ||
− | '''System '''as''' Encoding | + | |
− | + | ||
|- | |- | ||
− | || Click on | + | ||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 | + | ||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 layer''' dialog-box. | + | ||Click '''Open''' in '''Add vector layer''' dialog-box. |
Point to the map on canvas. | Point to the map on canvas. | ||
− | || In the '''Add vector layer''' 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 303: | Line 277: | ||
− | Point to '''Map-1.qgs''' on the | + | Point to '''Map-1.qgs''' on the '''Desktop'''. |
− | || In the dialog-box name the file as '''Map | + | || In the dialog-box, name the file as '''Map hyphen 1'''. |
− | I will save it on the | + | I will save it on the '''Desktop'''. |
− | Click on '''Save '''button. | + | Click on '''Save''' button. |
− | The map will be saved as '''Map | + | 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 | + | |
* '''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 | + | || Let us download '''raster dataset''' from '''Bhuvan''' website. |
|- | |- | ||
− | || '''Slide Number 10''' | + | ||'''Slide Number 10''' |
'''Bhuvan Website Link''' | '''Bhuvan Website Link''' | ||
Line 339: | Line 310: | ||
'''http://bhuvan.nrsc.gov.in/data/download/index.php''' | '''http://bhuvan.nrsc.gov.in/data/download/index.php''' | ||
− | || '''Bhuvan''' | + | || '''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''' | + | 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 | + | 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 . | + | ||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. | |
− | Use google maps to find the latitude and longitude of a particular region. | + | |
|- | |- | ||
− | || Type | + | || |
− | + | Type '''Minimum longitude 72.75 E''' | |
− | + | ||
− | Type | + | Type '''Maximum longitude 73 E''' |
− | Type | + | 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 411: | 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 425: | 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''' | + | || 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 445: | Line 410: | ||
|- | |- | ||
− | || Click on '''OK''' | + | ||Click on '''OK'''. |
+ | || '''Bhuvan''' will prompt you to '''login'''. | ||
+ | Click on '''OK''' button. | ||
− | || | + | |- |
− | + | || | |
− | + | || 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 469: | Line 432: | ||
− | Fill | + | Fill the appropriate details as shown. |
+ | 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 | + | |
|- | |- | ||
− | || Enter | + | ||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 | + | 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 ''' | + | || 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 | + | 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. |
− | Double click on the | + | Double click on the extacted folder. |
Line 526: | Line 486: | ||
− | Double click on the | + | Double click on the extacted folder. |
− | 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 541: | Line 501: | ||
− | Click on '''New icon''' | + | Click on '''New icon''' in the top-left corner on the '''tool bar'''. |
− | + | ||
|- | |- | ||
− | || Click on''' Layer>> Add Layer>>Add Raster Layer''' | + | ||Click on''' Layer>> Add Layer>>Add Raster Layer''' |
− | || Click on''' Layer''' on the menu bar. | + | || Click on''' Layer''' 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 Raster Layer option.''' | + | From the '''sub-menu,''' click on '''Add Raster Layer option.''' |
|- | |- | ||
− | || '''Open GDL Supported Raster Data Source''' dialog-box opens. | + | ||'''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''' | |
− | Select the file | + | |
Line 579: | Line 537: | ||
|- | |- | ||
− | || Point to the image on '''QGIS''' window. | + | ||Point to the image on '''QGIS''' window. |
− | || On '''QGIS''' | + | || On '''QGIS canvas''', you will see the '''raster''' map of '''Mumbai''' region. |
− | + | ||
− | + | ||
− | + | ||
|- | |- | ||
− | || '''Slide Number 11''' | + | ||'''Slide Number 11''' |
Summary | Summary | ||
Line 593: | Line 548: | ||
In this tutorial we have learnt, | In this tutorial we have learnt, | ||
− | * About GIS | + | * About '''GIS''' |
− | * Downloaded '''vector data''' from '''Natural Earth | + | * 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 | ||
− | || For the assignment | + | || For the assignment- |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
+ | *From '''Natural Earth Data''' website, download '''Medium Scale,''' '''Physical data '''for '''Rivers and Lakes''' | ||
|- | |- | ||
− | || '''Slide Number 13''' | + | ||'''Slide Number 13''' |
'''Assignment 2''' | '''Assignment 2''' | ||
|| | || | ||
− | * Another popular website to download | + | *Another popular website to download '''GIS data''' is '''Openstreetmap data''' website. |
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
− | + | ||
+ | * Explore '''Openstreetmap data''' website http://openstreetmapdata.com/ | ||
|- | |- | ||
− | || '''Slide Number 14''' | + | ||'''Slide Number 14''' |
'''About Spoken Tutorial project''' | '''About Spoken Tutorial project''' | ||
− | || * The video at the following link summarizes the Spoken Tutorial project. | + | || |
+ | * The video at the following link summarizes the Spoken Tutorial project. | ||
* Please download and watch it. | * Please download and watch it. | ||
− | |||
− | |||
|- | |- | ||
− | || '''Slide number 15''' | + | ||'''Slide number 15''' |
'''Spoken Tutorial workshops''' | '''Spoken Tutorial workshops''' | ||
Line 648: | Line 589: | ||
|- | |- | ||
− | || '''Slide Number 16''' | + | ||'''Slide Number 16:''' |
'''Forum for specific questions:''' | '''Forum for specific questions:''' | ||
Line 662: | Line 603: | ||
Someone from our team will answer them. | 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. | |
− | + | ||
− | + | ||
− | + | ||
− | 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. |
Line 684: | Line 623: | ||
|- | |- | ||
− | || | + | || |
− | || This tutorial is contributed by Prajwal | + | ||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
|
Slide Number 3
System Requirement |
To record this tutorial, I am using
|
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.
|
Slide Number 5
Datasets |
All the datasets required for this tutorial are available in Code files link. |
Slide Number 6
About GIS |
About GIS
|
Slide Number 7
Spatial Data |
Spatial Data is of two types, Vector Data and Raster Data.
|
Open Firefox/Chrome web browser. | Open any web browser.
|
Click on Downloads link
|
Natural Earth data website opens.
|
Scroll down |
Downloads page opens.
|
Point towards the scales.
Point towards the details. |
You can see three different scales of dataset.
|
Under Large scale data >> Click on Cultural button
|
Let us download a dataset for demonstration.
|
Scroll down the webpage. | A webpage opens.
|
Click on Download countries tab. | Let us download the country administration boundary files.
|
Point to the dialog box.
|
A dialog-box opens, which prompts you to save the file.
|
Open Downloads folder and point the zip file. | The process of download begins.
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Right-click to extract the contents. | Extract the contents of the zip file.
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Double-click to open the folder
Point to all the files. |
Double-click on the extracted folder.
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Slide Number 8
Spatial Data-Vector Data |
About Vector data.
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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.
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Point to Add Vector Layer dialog-box .
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Add Vector Layer dialog-box opens.
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Click on Browse.
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Under Source heading, click on Browse button.
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From the folder, select the file ne_10m_populated_countries.shp
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From the contents of the folder, select the file with .shp extension.
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Click Open in Add vector layer dialog-box.
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In the Add vector layer dialog-box, click on Open button.
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Click on Project in the menu bar.
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Save the map.
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In the File name text box, type Map-1.
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In the dialog-box, name the file as Map hyphen 1.
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Slide Number 9
Spatial Data - Raster Data |
About Raster Data.
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Cursor on slide | Let us download raster dataset from Bhuvan website. |
Slide Number 10
Bhuvan Website Link |
Bhuvan Platform was created by ISRO.
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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.
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Under Select Subcategory drop down, choose Resourcesat-1: LISS-III option.
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Cursor on Select Area panel, Bounding Box tab . | Let us download data for Mumbai region.
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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.
Maximum Longitude 73 Minimum Latitude 19 Maximum Latitude 19.25
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Point to the highlighted tile. | A tile over Mumbai will be highlighted. |
Click Next button.
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Click on Next button at the bottom of the page.
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Point on Date of Pass column.
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Select the most recent imagery by looking into the Date of Pass column.
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Click on the check box.
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Click on the check box on this row under Selection for backlog.
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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.
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Account and Profile Information page opens.
Click on Submit button.
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Enter username
Enter password Click Login |
I have already completed the registration process.
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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.
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Select Save File radio button >> click OK.
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Select Save File option and click on OK button.
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Right-click on the folder and select Extract Here option.
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Extract the contents of the zip file.
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On the QGIS window,
Click on New icon on the tool bar. |
Let us now open a file in QGIS.
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Click on Layer>> Add Layer>>Add Raster Layer | Click on Layer on the menu bar.
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Open GDL Supported Raster Data Source dialog-box opens.
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A dialog-box opens.
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Navigate to the folder l3e43a1624dec15
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Select the file 24December15 hyphen BAND2 dot tif
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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,
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Slide Number 12
Assignment 1 |
For the assignment-
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Slide Number 13
Assignment 2 |
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Slide Number 14
About Spoken Tutorial project |
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Slide number 15
Spoken Tutorial workshops |
The Spoken Tutorial Project team conducts workshops and gives certificates.
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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.
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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. |