I received a call from our conservation trainee. She was in the process of analyzing the climate from one of our offsite storage areas for 2013 and discovered something really, really odd. She sent me the data and asked if I could make sense of what happened on September 2 and 3 in the said year. Please see the graph below, showing the temperature in degrees Celsius (red line) and relative humidity in percentage (blue line) between September 2, 7 a.m. and noon on September 3. Can you make sense of what you see?
The data logger is a portable digital logger powered by batteries in the middle of a large storage area without HVAC that is approximately 2,000 square meters (about 21,500 square feet) and 5 meters (16.4 feet) high. In the next part we will discuss the graph and I will tell you the hint from a colleague that finally brought the solution.
What do you think happened in those 29 hours?
This post is also available in Russian translated by Helena Tomashevskaya.