- Click in the QGIS Tool Bar or via
Raster --> EO Time Series Viewer
to start the EO Time Series Viewer Click
Files --> Add example
to load an exemplary time series of Landsat and RapidEye observations.Open the sensor panel
View --> Panels... --> Sensors / Products
and change the sensor namesDefault Changed 6bands@30.0m Landsat 5bands@5.0m RapidEye3 The change of sensor names becomes visible in other other parts of the GUI as well, e.g. the list of time series source images.
- Use the scroll band and the map tools to change the temporal and spatial subset shown from the time series.
- Open the Mapping panel, change the map view name from Map View 1 to True Color and set the multiband color render band selection to RGB = 3-2-1 for both, Landsat and RapidEye images (right-click on layer,
Set Properties --> Style
).
Note
Use to refresh or redraw related maps, spectral profile plots etc.
- Now we like to optimize the color stretch. Choose a -clouded Landsat observation like 2014-06-24 and use the map context menu (right-mouse-click) to click on
Stretch to current extent ... --> Linear 5%
. Repeat with Linear and Gaussian stretch as well as for RapidEye images to see how this changes the band-specific min/max values in the Map View settings. - Click to create a second map view, respectively row of map images. Call it
Short-Wave IR
and the the multiband color render bands to Landsat RGB = 4-5-3 and RapidEye RGB = 5-4-3 - Expand the
Map Properties
combobox (in the Mapping panel), increase the map size to 300x300 pixel and pressApply
. Bring the Temporal Profile panel
View --> Panels... --> Sensors / Products
and the 2D page to the front. Click and select a map location to visualize the temporal profile for. Each selected map location will be listed in the panelsCoordinate
page.Go back to the 2D plot page and add a second profile with RapidEye data as Sensor source. Change the expression field to show the Normalized Difference Vegetation Index (NDVI) for both sensors:
Sensor Expression NDVI Landsat (b4-b3)/(b4+b3) RapidEye (b5-b3)/(b5+b3)