Christy Heaton - Plan your next eclipse viewing with Jupyter and geopandas

Maps are powerful tools that we use every day. Python is well-equipped to handle spatial data and with well documented robust libraries to help you perform spatial analysis and create beautiful maps. In this talk, we'll discover the fascinating world of spatial analysis by solving a fun problem: where can we go to see an upcoming solar eclipse? Along the way we'll learn about mapping topics like projections and coordinate systems, best practices for map making, and intricacies of spatial data.

https://us.pycon.org/2019/schedule/presentation/238/

Transcript

1. Plan Your Next Eclipse Viewing With Jupyter and Geopandas PyCon 2019 May 3, 2019 Christy Heaton
2. About me: @christytoes christyheaton.github.io
3. Let’s Talk About Maps @christytoes
4. Maps are Cool! Source: Washington.org @christytoes
5. Maps Have Been Around a While Source: arcgis.com @christytoes
6. Hasn’t Everything Already Been Mapped? @christytoes
7. Base Maps Source: Nearmap @christytoes
8. Source: Stamen Base Maps @christytoes
9. Source: Geoawesomeness Thematic Maps @christytoes
10. Source: Reddit Non-Earth Maps @christytoes
11. Source: Live Science Non-Earth Maps @christytoes
12. What is a Geographic Information System (GIS)? @christytoes
13. • A system that allows you to visualize, question, analyze, and interpret data to understand spatial relationships, patterns, and trends What is GIS? @christytoes
14. • A system that allows you to visualize, question, analyze, and interpret data to understand spatial relationships, patterns, and trends • Widely used in organizations of all sizes and in almost every industry What is GIS? @christytoes
15. • A system that allows you to visualize, question, analyze, and interpret data to understand spatial relationships, patterns, and trends • Widely used in organizations of all sizes and in almost every industry • A mix of data, science, analysis, and maps What is GIS? @christytoes
16. We Use GIS to Answer Where Questions @christytoes Source: 1, 2, 3, 4
17. Spatial Data - A Few Things to Know @christytoes
18. Source: Statcan Projections @christytoes
19. Distortion is Inevitable • Area • Angle • Shape • Distance • Direction @christytoes Source: Colormag
20. • How we define a location Sources: 1 Coordinate Systems @christytoes
21. • Latitude, Longitude • Used by GPS to express locations on the earth, and GeoJSON WGS84 Coordinate System Source: mymanatee Cleveland, OH 41.4993° N, 81.6944° W @christytoes
22. Sources: 1, 2 WGS84 Coordinate System @christytoes
23. Coordinate Reference Systems @christytoes WGS84 EPSG:4326
24. @christytoes Spatial Problem: Where Can I Go to See a Solar Eclipse?
25. @christytoes
26. @christytoes
27. @christytoes
28. What Does She Want to Know? 1. When and where will she be able to see an eclipse? 2. Which upcoming eclipse will pass over the most people? 3. What are the largest cities in that eclipse? @christytoes
29. Python Mapping Libraries Jupyter Notebook An open-source web application that allows you to create and share documents that contain live code, equations, visualizations and narrative text. Can run a local or cloud Python kernel. Great for data science, multimedia, and mapping! @christytoes
30. Python Mapping Libraries Matplotlib A Python plotting library which produces publication quality maps and diagrams in both static and interactive formats @christytoes
31. Python Mapping Libraries Pandas Provides high-performance, easy-to-use data structures and data analysis tools GeoPandas Geographically-enabled Pandas, depends on Shapely for manipulation and analysis of planar geometric objects @christytoes
32. Python Mapping Libraries Anaconda A Python distribution that comes with tons of data science libraries and has its own way of creating environments. Very handy! @christytoes
33. Let’s Start by Making a Base Map @christytoes
34. Let’s Start by Making a Base Map @christytoes
35. Let’s Start by Making a Base Map @christytoes
36. Let’s Start by Making a Base Map @christytoes
37. Let’s Start by Making a Base Map @christytoes
38. Let’s Start by Making a Base Map @christytoes
39. Let’s Start by Making a Base Map @christytoes
40. Let’s Start by Making a Base Map @christytoes
41. Let’s Start by Making a Base Map @christytoes
42. What Does She Want to Know? 1. When and where will she be able to see an eclipse? @christytoes
43. When and where can she see an eclipse? @christytoes
44. When and where can she see an eclipse? @christytoes
45. When and where can she see an eclipse? @christytoes
46. When and where can she see an eclipse? @christytoes
47. When and where can she see an eclipse? @christytoes
48. What Does She Want to Know? 1. When and where will she be able to see an eclipse? @christytoes
49. What Does She Want to Know? 1. When and where will she be able to see an eclipse? 2. Which upcoming eclipse will pass over the most people? @christytoes
50. Which eclipse will pass over the most people? @christytoes
51. Which eclipse will pass over the most people? @christytoes
52. Which eclipse will pass over the most people? @christytoes
53. Which eclipse will pass over the most people? @christytoes
54. Which eclipse will pass over the most people? @christytoes
55. Which eclipse will pass over the most people? @christytoes
56. Which eclipse will pass over the most people? @christytoes
57. Which eclipse will pass over the most people? @christytoes
58. What Does She Want to Know? 1. When and where will she be able to see an eclipse? 2. Which upcoming eclipse will pass over the most people? @christytoes
59. What Does She Want to Know? 1. When and where will she be able to see an eclipse? 2. Which upcoming eclipse will pass over the most people? 3. What are the largest cities in that eclipse? @christytoes
60. What are the largest cities in the eclipse? @christytoes
61. What are the largest cities in the eclipse? @christytoes
62. What are the largest cities in the eclipse? @christytoes
63. What are the largest cities in the eclipse? @christytoes
64. What are the largest cities in the eclipse? @christytoes
65. What are the largest cities in the eclipse? @christytoes
66. What are the largest cities in the eclipse? @christytoes
67. What are the largest cities in the eclipse? @christytoes
68. What are the largest cities in the eclipse? @christytoes
69. What are the largest cities in the eclipse? @christytoes
70. What Does She Want to Know? 1. When and where will she be able to see an eclipse? 2. Which upcoming eclipse will pass over the most people? 3. What are the largest cities in that eclipse? @christytoes
71. That’s great but... my sister doesn’t know anything about Python, Jupyter, and geopandas... @christytoes
72. I need to give the results to her in a format that she can use @christytoes
73. Bonus: Make it Interactive @christytoes
74. Python Mapping Libraries Folium Binds the power of Python with leaflet.js @christytoes
75. Make it Interactive @christytoes
76. Make it Interactive @christytoes
77. Make it Interactive @christytoes
78. Make it Interactive @christytoes
79. Make it Interactive @christytoes
80. Make it Interactive @christytoes
81. Make it Interactive @christytoes
82. Make it Interactive @christytoes
83. Deliver @christytoes
84. Contact me: Github: christyheaton Twitter: @christytoes Website: christyheaton.github.io https://github.com/christyheaton/PlanYourNextEclipseViewing
85. Thank you!
86. Happy Mapping! @christytoes