Fireworks 2019!

July 4th is just around the corner, which means there will be fireworks again!

Use the app to view cities in LA, Orange, Ventura, Riverside, and San Bernardino County that allow the sale and discharge of fireworks.  Included are days and times when fireworks will be sold and when you can light them up, as well as links to city websites and telephone numbers.  Data was collected from municipal codes, websites, and/or contacting each city.  Some cities allow sales to start today AND allow you to discharge them today as well!  Check it out!

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Calculating Slope Using Python

The standard slope tool in ArcGIS Desktop only examines a 3×3 cell neighborhood (and does not include the center cell) to determine slope for each cell.  However, using Python you can create a method for calculating slope along a flow direction grid specific to your needs.  Check out this article about using Python to calculate a fire “flow direction” based on a DEM and fire lines.

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Native Land Interactive Map

If you are interested in the Indigenous histories of North America and beyond you may enjoy exploring Native Land, an ongoing interactive mapping project that attempts to outline ancestral Indigenous territories. Here, you will find a colorful map multi-layered with depictions of where different Indigenous peoples historically lived. You can browse the map itself or search for a particular postal code to see whose territories that location falls within, and clicking on a given territory shows the names of the native people(s) and cession treaties associated with that place with links to sources included. Check it out!

World Reef Map

Healthy coral reefs are some of the most biodiverse ecosystems on the planet, leading some to call reefs the rainforests of the sea. Coral reefs are also threatened by ocean acidification caused by pollution, overfishing, and more. Check out this wonderful interactive atlas of coral reefs in remote locations around the world. You can explore the map by selecting a pin or using the menu to choose a location, then zoom into a specific island area within that location to view a colorful detailed map of its reefs different habitat areas, many of which are accompanied by underwater videos. This online map also includes GIS tools enabling you to measure and analyze specific reef habitats. These and other features are explained in the map’s useful help section. Check it out!

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