November is the annual 30daymapchallenge, in which participants challenge to create a new map every day in response to a shared set of daily prompts. I am using this as inspiration to make new maps using data from the Salish Sea Atlas. Here are a few from the first week.
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- Day 1’s prompt is “points”, so here is a map with points showing the 837 coastal points, capes, etc. with “Point” in their name along the shores of the Salish Sea. Whatever critique you might have, at least you can’t call this map pointless 😁
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- The prompt for the second day of the 2024 hashtag#30daymapchallenge is lines, which made me think of routes and shipping lanes. This map shows marine vessel traffic counts in the Salish Sea recorded in 2023, using US Coast Guard AIS data from the Marine Cadastre website.
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- Day 3’s theme is “Polygons”. I made this map showing the how dramatically median age varies across the Salish Sea Bioregion.
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- For #30daymapchallenge Day 6’s theme of “Raster”, I would like to share this map of the prevalence of Douglas-fir (Pseudotsuga menziesii) in the Salish Sea area. This tree species has immense local cultural and ecological significance, and is certainly one of my favorite trees. This map uses a combination of two MODIS-based tree species classifications (Beaudoin et al. 2014 and Barry et al. 2013) based on imagery from 2000-2009.
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- I had fun exploring historical cartographic styles for the hashtag#30daymapchallenge Day 7 theme of ‘Vintage”. Here is a visualization of elevation and bathymetry in the Salish Sea Bioregion. I used topobathymetric data from the Salish Sea Atlas (arcg.is/0WaK51 ). I looked at some of my favorite local 18th and 19th century maps for cartographic inspiration and historical toponyms