1 of 13

Using Google Earth Engine for large-scale geospatial analysis:

A case study of automated surface water mapping

Qiusheng Wu, PhD

Department of Geography�University of Tennessee, Knoxville�https://wetlands.io

GeoInsider webinar

July 2, 2020

slides

2 of 13

About me

  • Education
    • 2015 Ph.D. in Geography, University of Cincinnati
    • 2011 M.A. in Geography, University of Cincinnati
    • 2007 B.S. in GIS, Sun Yat-sen University
  • Appointments
    • 2019 – present Assistant Professor of Geography, University of Tennessee
    • 2015 – 2019 Assistant Professor of Geography, Binghamton University
  • Editorships
    • 2018 – present Associate Editor, Remote Sensing, MDPI (Impact Factor: 4.509)
    • 2016 – present Associate Editor, Wetlands, Springer Nature (Impact Factor: 1.783)
  • Publications
    • 40 in total (12 as the first author)
  • Profiles

2

3 of 13

Earth Engine Resources

geemap:

Want to learn more?

  • earthengine-py-notebooks: 360+ notebook examples for using GEE
  • qgis-earthengine-examples: 300+ Python examples for using GEE in QGIS
  • Awesome-GEE: A curated list of Google Earth Engine resources

3

4 of 13

How to make Sichuan boiled fish?

4

Home kitchen

Five-star hotel kitchen

Traditional approach

Google Earth Engine

5 of 13

Outline

  • Install geemap
  • Get help
  • Create interactive map
  • Create time-series
  • Extract surface water
  • Visualize results
  • Export results
  • Large-scale geospatial analysis
  • Q&A

5

6 of 13

Citing geemap

Wu, Q. (2020). geemap: A Python package for interactive mapping with Google Earth Engine. The Journal of Open Source Software. 5(51), 2305. https://doi.org/10.21105/joss.02305

6

7 of 13

7

download article

8 of 13

8

9 of 13

9

10 of 13

10

11 of 13

11

12 of 13

Demo

12

Download the Jupyter notebook example:

conda create -n gee python=3.7

conda activate gee

conda install mamba -c conda-forge

mamba install geemap -c conda-forge

mamba install jupyter_contrib_nbextensions -c conda-forge

13 of 13

Thank you!

Any questions

Qiusheng Wu, PhD

Department of Geography

University of Tennessee

Email: qwu18@utk.edu

Website: https://wetlands.io

Twitter: https://twitter.com/giswqs

wetlands.io