Tutorial WAPORWP Python notebooks on Google Colaboratory

3. Run WAPORWP Module 0

Open the notebook "Module_0_WaPOR_data_bulk_download.ipynb" in Google Colaboratory. In this notebook, there are 3 steps:
Step 1: Import libraries and mount to Google Drive

First, we need to mount the engine with google drive folder. Click the "Run" button of the code cell 


Click on the URL that appears, select your Google account, and allow the app to mount. Copy the authorization code and enter it in the notebook prompt.

Mount google drive

Run the next cell to install pyshp package

pip install pyshp

Run the next cell to import all libraries. When you import "WaPOR" module for the first time, you will be asked to enter WaPOR API token. Go to your WaPOR profile (My WaPOR>My Profile) and generate an API token. Copy and keep this token somewhere safe (e.g. a note file). Enter this token in the notebook prompt.

Import libraries, enter WaPOR API token

Step 2: Read geographical extent of the study area

Run the next two cells to read the extent of the study area from a shapefile. This will also plot the shapefile so that you can check how the shape looks like.

read extent and plot shapefile

In this example, we're using the shapefile of sugarcane field in Xinavane, Mozambique, which path is: "/content/drive/My Drive/WAPORWP/Data/1Boundary/Shapefile/Xinavane_1.shp".

When you do the analyses for your own study area, you will need to upload the shapefile of the new area to Google Drive and change this path name.

Step 3: Bulk-download WaPOR data for the study area extent

It will take about 3 hours to complete downloading all data for the Xinavane case to WAPORWP folder on Google Drive. However, the data for Xinavane has already been included in WAPORWP folder as an example. Therefore, for the purpose of following the tutorial you don't need to download data again. You can try to collect only Land Cover classification data to see how the script works.

If you run all the cells in step 3 and the script will automatically download raster data for these layers:
No.WaPOR DataSpatial resolutionTemporal resolutionTemporal coverage
1Actual Evapotranspiration & interception (AETI)100 mDekadal2015-2019
2Transpiration (T)100 mDekadal2015-2019
3Net Primary Production (NPP)100 mDekadal2015-2019
4Land cover classification (LCC)100 mAnnual2015-2019
5Precipitation (PCP)5 kmDekadal2015-2019
6Reference Evapotranspiration (RET)20 kmDekadal2015-2019

For example, the cell contains function used to download dekadal data of AETI for the geographical extent of the study area from 2015 to 2020 at level 2 (100m).


Download data

Tips:

Google Colab notebooks have an idle timeout of 90 minutes and absolute timeout of 12 hours. This means, if user does not interact with his Google Colab notebook for more than 90 minutes, its instance is automatically terminated. Also, maximum lifetime of a Colab instance is 12 hours. Therefore, to avoid timeout when you need to run the scripts for a long time on the cloud, you can do these following steps

In Google Chrome window, press Ctrl+Shift+I to open Developer tools. Under Console tab, copy and paste the following script and enter:

function ClickConnect(){ 
console.log("Working"); 
document.querySelector("#comments > span").click() 
}
setInterval(ClickConnect,5000)
Developer tools