NATIONAL DATA
Adding a national and sub-national data at different admin levels helps you view a more localized information. This will ensure the accuracy of information and help generate solid country reports.
A more localized and accurate data at different admin levels looks as demonstrated in the below example: 1. Explore Data > 2. Food Security > 3. National (select country of interest) > 4. Add to the Map
ADDING DATA
With the use of Database of Global Administrative Areas (GADM) for sub-national boundaries, the Platform integrates publicly available national data. To add your private data of sensitive nature, click:
1) Explore Data > 2) My Data > 3) Upload your data using preferred method and format:
DATA CATALOGUE
To view a data catalogue and related data set:
- Click on a data set of interest
- You will then be able to see its corresponding description
- View useful information, including the custodian
- See links to the data catalogue and reference to the source
Краткое руководство
В кратком руководстве обобщены шаги, которые необходимо выполнить для того, чтобы приступить к использованию Платформы.
20.2.
Try Yourself Создание файлов цифровой модели местности
For modules Module: Creating Vector Data and Module: Rasters, you’ll also need raster images (SRTM DEM) which cover the region you have selected for your course.
The CGIAR-CGI provides some SRTM DEM you can download from http://srtm.csi.cgiar.org/srtmdata/.
You’ll need images which cover the entire region you have chosen to use. To find the extent coordinates, in QGIS ,
zoom to the extent of the largest layer and pick the values in the
Extents box of the status bar. Keep the GeoTiff format. Once the form is filled, click on the Click here to Begin Search >> button and download the file(s).
Once you have downloaded the required file(s), they should be saved in the exercise_data directory, under raster/SRTM subfolders.
VIEWING NATIONAL DATA
Adding the National Data set to the Map (1) will Feature Information (2) and provide comprehensive data for analysis both on national and sub-national levels:
VIEWING DATASET
Once your added data set is reflected into the map, you can easily customize your search by applying multiple features, parameters to suit your needs such as:
- Map View - change from 2D to 3D Terrain, modify the type of overlay, apply image optimization and regulate Raster Map Quality.
- Workbench with Legends – helps you refine your search criteria for the added datasets by adjusting the opacity of the colors, selecting the time-frame, changing the variables, among others.
The 'Split' Function
After adding two or more datasets to the map, you will be able to see a comparison between the datasets visualized in the map:
- Split - click on this button after adding your to-be compared datasets
- Click on a data set to select right or left, to set the comparison
- Cursor - move the cursor to the right and left to visualize the comparison.
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