ArcGIS Online includes everything you need to create your own maps by accessing a gallery of basemaps, Â adding your own layers, and configuring mashups that you can share with others and embed in your own website.
In this section of the workshop we will create some basic web maps and embed them in our own website.
1. Navigating in ArcGIS Online
Sign inÂ
arcgis.com with your Clemson ID account as mentioned in the section before. Once you are signed in, go toÂ
Map at the top of the page.
One of the main features of ArcGIS Online is the Map section, where you can explore content, add your own data, perform analysis and create your own interactive web maps.
In the upper left section, click theÂ
Basemap button and choose a different basemap.Â
Explore different basemaps and practice zooming in and out using the roller button in your mouse.
2.1 Adding data to the map
Let's try some examples of how to add data to the map, customize the symbology of a layer, view a pop-up, and perform analysis.
On the top left section, click the dropdown menu to the Add button. Click Search for Layers.
In the Search for Layers window, type wind and weatherÂ
Make sure the box next to In: is set to ArcGIS Online.
In the results window, find the Current Wind and Weather Conditions layer by Esri and click Add and click Done Adding Layers.
This is a (near) real-time dataset from weather stations all over the world. The default symbology shows the windspeed and direction, but there is lots of other data for us to explore. First, click on the Legend button to show the legend for interpreting the symbology.
Click on a point in the map to view it's popup window, which gives a snapshot of the attribute data for the point. Notice that the data has a nicely formatted pop-up, which is drawing attribute information from the table and presenting it in an easy-to-read way.Â
In the Contents panel, click the table button under the layer name to open the attribute table. Notice the information that is being presented in the popup window. Click the X to close the table.
To remove a layer, hover your mouse over the layer name in the Contents panel, then click the More Options button (three dots) and click Remove.
2.2 Add data from the Living Atlas
Go to the Add menu. In the drop-down menu, select  Browse Living Atlas Layers. This is a list of updated GIS datasets that are specifically curated for use in ArcGIS Online.Â
Click the All Categories drop-down menu to see the themes. In the Search box, type Precipitation.
Find the National Weather Service Precipitation Forecast and add it to the map as a Layer. This layer contains real-time data displaying the precipitation forecast for the next 72 hours across the Continental United States.
Click the Close button to go back to the map.
Notice there is a time slider at the bottom. Click on the play button to see the data animation for the next 10 days. Are we getting any rain in South Carolina?
Remove your layer by going to the Contents section, clicking the ... below the layer and selecting Remove.
3. Your first map: Sea Level Rise
Now that you are familiar with the interface a bit more, let's create a few maps that will become the basis of your story map.
ArcGIS Online has a wealth of data from many trusted sources such as NOAA and USGS. Next we will search for climate data and add a sea-rise layer to our web map.
You also have a search button to find places. In the search box on the top right, type Charleston.
Change the basemap to Imagery.Â
On the top left section, click the dropdown menu to the Add button. Click Search for Layers.
In the Search for Layers window, type sea level riseÂ
Make sure the box next to In: is set to ArcGIS Online.
Scroll down in the results until you findÂ
3ft Sea Level Rise byÂ
noaa. In the Search results, click on the title and select Item Details. A new window appears at thisÂ
link that has extensive metadata about this layer created by NOAA.
Go back to Arcgis Online. Click the Add button and at the bottom of the search results, click Done Adding Layers.
Take a look at this data layer. Expand its view on the Contents section (click the inverted triangle to the left of the layer) and notice there are two sub-layers. Click on the Show Legend button to understand what they represent.
This 3 ft Sea Level Rise layer from NOAA shows what 3ft of sea level rise would look like for the U.S. coast.Â
Levels represent inundation at high tide. Areas that are hydrologically connected are shown in shades of blue (darker blue = greater depth).
Low-lying areas, displayed in green, are hydrologically "unconnected" areas that may flood. They are determined solely by how well the elevation data captures the area's hydraulics.
Zoom in downtown Charleston. To better see the area affected, change the transparency by clicking on the ... below 3 ft Sea Level Rise, select Transparency and change the slider to 25%.
You can see now that with a 3ft rise in sea levels a significant part of Charleston and the surrounding areas would be inundated with water.
Above the center of the map, click Save. Select Save. Follow these settings:
Title:Â Sea Level Rise in Charleston, SC
Tags:Â sea level rise, climate change, Charleston
Summary:Â A web map displaying sea-level rise data for Charleston, SC
3.3 Sharing your map
Next to the Save button, click Share.
In the new window that appears, check the box to share with Everyone (public).
Notice that you can share the short link to the map. In the next section, you will be embedding your new map in your Google site that you created earlier.
4. Your second map: Global Mean Temperature
You are now going to create a second map that looks at temperature. On the upper right corner, select New Map. Create New Map.
Using the steps that we demonstrated to you before, search and add a layer from ArcGIS Online called Annual_Temp by e.barona_CIAT.
Once you add this layer, zoom to the extent of the layer by clicking on
 ... and selectingÂ
Zoom To. Notice this is a global layer. Â Find some more details about this layer by clicking onÂ
...,Â
Show Item Details.
This layer displays average temperature for years 1950-2000 for the entire world at a 1-km spatial resolution.
Add the legend for this layer your map. Notice the units are degrees Celcius.
Change your basemap to Oceans..
Save your map with the following details:
-Title: Global Mean Temperature, 1950-2000
- Tags:Â temperature
- Summary:Â A web map displaying global mean temperature.
Click Save Map.
5. Managing your content in ArcGIS Online
Your map that you created is saved and is part of your content section in ArcGIS Online, where you manage all your data, maps, and apps.
In the upper left corner, click the Home menu and select My Content.
Notice you have three Web Maps that you created. One of them is Public and the other one is private (precipitation).
Check the box to the left of Total Annual Precipitation and click the Share button on top. Select Access and check the box next to Everyone (public).
