Mystery Gases and the Gravity Challenge

To succeed in this challenge, you need to have a solid understanding of international gravity standards and be adept at using the relevant data. Here's a descriptive breakdown of what you could do: 1. **Acquire a wide knowledge:** Learn about IGSN 71 and its purpose. Understand the principles and methodologies behind the measurement of the gravity’s downward force. Understanding concepts such as gravity variations, reference ellipsoids, free-air and Bouguer corrections will be beneficial. 2. **Research the selected stations:** Once the IGSN 71 Gravity Stations have been selected, research each of them extensively. Familiarize yourself with the geographic, geologic, and meteorological characteristics to understand how these factors might influence the gravity reading at each station. 3. **Collect data:** Gather as much data as you can about the selected stations. This could include past and present gravity readings, any patterns or anomalies in the data, and any external factors that could affect the readings. 4. **Model the data:** Use statistical methods, or an alternate predictive method, to analyze your collected data and build a predictive model. The chosen method should appropriately address the prediction of the downward force at the selected gravity stations. 5. **Test the model:** Apply your model to the publicly available IGSN 71 Gravity Stations. This is to test if the model can accurately predict the measurements at these stations. 6. **Fine-tune the model:** Based on the test results, refine your model for greater accuracy. 7. **Prepare for the competition:** Finally, apply your model to the 10 selected stations and calculate the predicted downward force. Compare these values with the measured values to see how accurate your model is. Remember that clear and effective communication is vital - ensuring everyone involved understands your methodology and results. You can consider collaboration with professionals or experts in this field for consultation or advice. Most importantly, approach this challenge with a scientific and investigative mind, ready to learn and adapt as needed.