One way to celebrate Earth Day (today) is to review this REAL-TIME ArcGIS dashboard of important Environmental Health indicators of our planet! It leverages LIVE data feeds from the ArcGIS Living Atlas!

Esri has gathered near real-time information within the ArcGIS Living Atlas from many data-contributing partners such as: NOAA, UN Environment Programme, and the US Geological Survey to create this ArcGIS Living Atlas Indicators of the Planet. This ArcGIS application was launched in July 2020 and organizes an impressive collection of indices into a dashboard gallery of Environmental conditions for our planet. Earth Day 2021 is the perfect time to review these Earth Indicators and possibly plan activities to help mitigate these impacts. Simply planting a tree, or picking up litter in a local park could make a lasting difference!

ArcGIS Living Atlas Indicators of the Planet was developed using the ArcGIS Experience Builder and is in its Beta release while additional capabilities are being implemented. This Experience Builder template can be customized for your own topics of interest. All of the underlying layers, maps, and apps are available from this Content Group.

You can use our Public Survey123 application to contribute Public or Free WiFi access locations within Arkansas.   These Free Wifi locations are shared with Arkansas Public School students and citizens that may not have internet access at home.  Your assistance may help Arkansas students or their families locate free internet access nearby! Over 148 Wifi hotspots have been collected by volunteers since March of 2020. Click here to learn more or to complete our Survey123 for ArcGIS form.

• Find a location of interest.
• View these historical topographical maps.
• Compare the maps with modern imagery.
• Download and share the maps or open them in ArcGIS Desktop (ArcGIS Pro or ArcMap desktop) where places will appear in their correct geographic location. 
• Save the maps in an ArcGIS Online web map too, if you have an AGOL account, but one’s not needed to explore and download the archive!

These historic topographical maps were originally featured in an October 2014 ArcWatch publication.

The Living Atlas summarized in 3-minutes.

I discovered this Arcade function within ESRI’s online forum back in May of 2019 and it’s helpful for converting the X, Y coordinates from the Web Mercator Projections that many of today’s world wide mapping services use (ie ArcGIS Online basemaps, Google Maps, Bing, Mapquest, etc).

Most of us are comfortable with geographic coordinates or commonly referred to as the Latitude and Longitude coordinate systems. They are also often displayed in a decimal degrees format such as: 35.2345566, -94.234456 It’s for this very reason that I needed an Arcade expression within my ArcMap web map. I simply wanted to display a pop-up or a map label with Geographic Coordinates because other map users are already familiar with it.

Open ArcGIS Online to get started.

• Open a ArcGIS Online map with a point feature service you own or can edit.
• Download the Arcade_ArcGIS_webMercator2LatLongLabel.txt file and then open it within Notepad or Notepad++ (for formatting purposes).

• Within your AGOL Map Viewer, left-click the More Options (circled below in blue) to open the map layer context menu; then select Configure Pop-Up.

• After selecting Configure Pop-up from the context menu, scroll down within the Configure Pop-up side panel until you see the ADD attribute expression dialog. Left-click the ADD button (blue circled).

• Once the Arcade Expression dialog opens, you’ll want to Edit the name of this script (LatLongLabel) in the upper-left corner
• Next, you will copy/paste the entire contents of the Arcade expression (.txt file) provided within this tutorial.
• It should already be open within Notepad or Notepad++, so hopefully the copy/paste will be easy.
• Paste the Arcade Expression into the Code Block section (left side/shaded blue in the screen shot below) and click the blue TEST button to confirm that there are no errors. A cleanly formatted lat/long coordinate pair is what you want to see.

• After Testing your Arcade expression, and if it’s OK, then click OK in the lower right corner to close the Arcade dialog.
• You should see your NEW custom arcade expression within the Attribute Expressions list of your Configure Pop-up dialog.

• Now, You will put this new LatLongLabel expression to use within your map pop-up. And, as you can see below, it’s formatted as Latitude, Longitude within the Pop-Up of this Trash Tag Web Map.

And there you have it, that’s how the Arcade scripting language can help you customize maps with labels and pop-ups that contain geographic coordinates.

Those coordinate pairs can be used to pass a URL string to other web services too, such as Survey123 for ArcGIS or even outside of the ArcGIS platform to Google Map Driving Directions services. If needed…

Take care; let me know if you have questions. I tried to keep this short as possible, so let me know if I can help.