Gee data set: export the distribution and installed capacity of hydropower stations in the country to CSV table

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Preface

GEE in , There is a database of world power plants , We can export the data we need as needed , For example, the data table of the distribution and installed capacity of hydropower stations in the country can be derived .

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One 、 World power plant data set and its table structure

The above table is automatically translated by machine , hold string Translated into string , Ha

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Two 、python Code

The code is as follows ：

#  Load data , Screening 
table = ee.FeatureCollection("WRI/GPPD/power_plants") \
    .filter(ee.Filter.eq('country', 'CHN')) \
    .filter(ee.Filter.eq('fuel1', 'Hydro'))
#  Export concerned data 
downloadURL = table.getDownloadURL(filetype='csv', selectors=['country', 'name', 'capacitymw', 'latitude', 'longitude','fuel1'], filename='china_hydro')
print(downloadURL)

Some of the results are as follows ：

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3、 ... and 、 Summary

1. Use getDownloadURL() You can export the concerned data table , This paper uses the global power plant database to derive the distribution and installed capacity of hydropower stations in China CSV Data sheet .
2. Through a simple comparison, it is found that , The data in the world power plant data set still has large errors , For example, the number of hydropower stations in China is about 900 More than , Obviously, there is a lot of error , Just for GEE Study and have a look

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Reference resources ：

• https://developers.google.com/earth-engine/datasets/catalog/WRI_GPPD_power_plants#table-schema
• https://developers.google.com/earth-engine/apidocs/ee-featurecollection-getdownloadurl?hl=en