# Mapping Weather Balloon Data in 2D and 3D using ArcGIS Online

Blog Post created by jkerski-esristaff on Apr 28, 2017

The Cherry Creek School District in Colorado has been using GIS in the curriculum and in administration for many years now. When the STEM coordinators of the district told me that their students were launching weather balloons and recording atmospheric data from them, I jumped at the opportunity to show them how easy and powerful it is to map the data in ArcGIS Online. The data from just one of the many balloons they had launched was stored in a standard spreadsheet and contained latitude and longitude coordinates, and therefore it was straightforward to map it in ArcGIS Online.  I simply added the spreadsheet saved as a CSV file to ArcGIS Online's "My Content" to create a layer file out of it.  This particular balloon, launched on 1 May 2015, flew over 56 miles (100 km) in 3 hours and 6 minutes, reaching a maximum altitude of 30.7 km, recording a minimum temperature of -59.3 C,  and achieving a maximum speed of 114 km/hour. I mapped the balloon based on its height on a satellite image base, which you can examine in ArcGIS Online by clicking here or on the map below.

Since balloons fly in 3D space, a natural next step was to map the data as a 3D Web Scene.  Until recently, you needed to use ArcGIS Pro to extrude the balloon points to cylinders, but with the announcement that the 3D Scene viewer includes 3D symbols, you can render the symbols in the Viewer itself.  You can examine the data in the interactive 3D Scene viewer here or by clicking on the image below.

What excites me not only is the ability of these tools to quickly map the data that the students are collecting, but the power that they offer in terms of helping students understand the relationships among all of these variables. The variables in this case included altitude, speed, heading, and temperature, but other data that the students have collected include atmospheric quality characteristics.  Visualizing and analyzing in these 2D and 3D tools allows students to uncover the relationships between these variables, and why they vary the way they do.  In so doing, GIS provides a fundamental component of the district’s STEM goals, perspectives, content knowledge, and skills. Another thing about this project that excites me is that Grade 5 students are the ones engaged in this project.  Yes, they are only 11 years old, collecting and analyzing data!

Think about the kinds of data that you and your students work with. It may not be weather balloon data, but say you have another data set that you occurs over space and time that you are interested in mapping and analyzing. How could you use ArcGIS Online and the 3D scene viewer using the procedures described here to map and understand your data?