GIS Training: Practising QGIS Exercises

GIS TRAINING

Practising QGIS

Using the geomorphology and GeoNames toponyms create the project below

Exercise 1

Filters

•

Capital : "feature code" = 'PPLC‘

•

Villages :  "feature code" = 'PPL‘

•

Mainland: "L4_ATTRIB" = 'main land'

Compute the distance matrix between villages and the capital city

Exercise 1

Set the color of villages based on distance using graduated

symbology and pretty breaks

Exercise 1

Create the following map and save as image

Exercise 1

Change the project coordinate system to WGS 84 / UTM zone 2S

Exercise 1

Save the filtered capital layer as a new layer with CRS = WGS 84 / UTM zone 2S

Exercise 1

Create a 20 km buffer around the capital city

Clip the land within 20 km of the capital city using the buffer

Exercise 1

Delete all fields except L4_ATTRIB and add area field in Ha

Save as shapefile in UTM Zone 2S

Exercise 1

Use Group Stats to calculate the total area within 20 km in Ha

Exercise 1

Add a new XYZ Tiles connection for google satellite

http://www.google.cn/maps/vt?lyrs=s@189&gl=cn&x={x}&y={y}&z={z}

Exercise 2

Google Maps

https://mt1.google.com/vt/lyrs=r&x={x}&y={y}&z={z}

Google Satellite:

http://www.google.cn/maps/vt?lyrs=s@189&gl=cn&x={x}&y={y}&z={z}

Google Satellite Hybrid:

https://mt1.google.com/vt/lyrs=y&x={x}&y={y}&z={z}

Google Terrain:

https://mt1.google.com/vt/lyrs=t&x={x}&y={y}&z={z}

Google Roads:

https://mt1.google.com/vt/lyrs=h&x={x}&y={y}&z={z}

XYZ Tiles Google URLs

Add

the EEZ v10 and filter on territory1 = cook islands

Exercise 2

Download CK.zip from Geonames.org and extract CK.TXT

Exercise 2

Add

the toponyms (note the CK.txt file has no field names)

Set X as field 6 (longitude) and Y as field 5 (latitude)

Exercise 2

Filter the toponyms on "field_2"='Penrhyn‘

And zoom on Penrhyn and the old air strip

Exercise 2

Add a new Waypoints shapefile of type Point with a Zone field

Exercise 2

Create waypoints around zone A and B

Exercise 2

Use Points to path to create paths by Zone

Exercise 2

Use Lines to Polygons to create polygons

Exercise 2

Read the surface area of Zone A

Exercise 2

Add the google roads to the XYZ Tiles

https://mt1.google.com/vt/lyrs=h&x={x}&y={y}&z={z}

Exercise 3

Using Tonga v6 to help you locate Tonga, zoom to Vava’u area

Exercise 3

Locate Ano Lagoon

Exercise 3

Create a new polygon shapefile in UTM Zone 1S

Draw a polygon around the Ano Lagoon

Exercise 3

Add geometry attributes and read area and perimeter

Exercise 3

Add the centroid of the polygon

Exercise 3

Reproject the centroid layer to ESPG:4326

Exercise 3

Add longitude et latitude columns ($x and $y)

Exercise 3

Create a map

Exercise 3

Display the density of Stichopus chloronotus (sea cucumber densities)

for Reef Benthos Transects in Vava’u

Exercise 4

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Engage in a series of hands-on exercises with QGIS to create maps, analyze geospatial data, and manipulate project settings. Explore tasks such as setting up symbology, calculating distances, changing coordinate systems, and utilizing XYZ Tiles connections for Google satellite imagery.

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Uploaded on Oct 09, 2024 | 1 Views

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Presentation Transcript

GIS TRAINING Practising QGIS

Exercise 1 Using the geomorphology and GeoNames toponyms create the project below Filters Capital : "feature code" = 'PPLC Villages : "feature code" = 'PPL Mainland: "L4_ATTRIB" = 'main land'

Exercise 1 Compute the distance matrix between villages and the capital city

Exercise 1 Set the color of villages based on distance using graduated symbology and pretty breaks

Exercise 1 Create the following map and save as image

Exercise 1 Change the project coordinate system to WGS 84 / UTM zone 2S

Exercise 1 Save the filtered capital layer as a new layer with CRS = WGS 84 / UTM zone 2S Create a 20 km buffer around the capital city

Exercise 1 Clip the land within 20 km of the capital city using the buffer

Exercise 1 Delete all fields except L4_ATTRIB and add area field in Ha Save as shapefile in UTM Zone 2S

Exercise 1 Use Group Stats to calculate the total area within 20 km in Ha

Exercise 2 Add a new XYZ Tiles connection for google satellite http://www.google.cn/maps/vt?lyrs=s@189&gl=cn&x={x}&y={y}&z={z}

XYZ Tiles Google URLs Google Maps: https://mt1.google.com/vt/lyrs=r&x={x}&y={y}&z={z} Google Satellite: http://www.google.cn/maps/vt?lyrs=s@189&gl=cn&x={x}&y={y}&z={z} Google Satellite Hybrid: https://mt1.google.com/vt/lyrs=y&x={x}&y={y}&z={z} Google Terrain: https://mt1.google.com/vt/lyrs=t&x={x}&y={y}&z={z} Google Roads: https://mt1.google.com/vt/lyrs=h&x={x}&y={y}&z={z}