Sarah Maddox Under Hamish Gordon, Jasper Kirkby University of Michigan CERN REU Design of Experiments for the 2015 CLOUD Run

Review The goal of my project is to find out how 7 variables affect cloud formation

Working with experimental data I ran into some problems with the real data at lower temperatures…

Emulating the Neutral J Rate To fix the problems, I split the data set by Q This resolved the Q dependence of the nucleation rate

Moving on to 5 dimensions H2SO4, NH3, Temperature, Q, and organics (alpha-pinene) Additions to the 4D parameterization How many data points are needed to accurately emulate the 5D space? J(H 2 SO 4, NH 3, C, Q, T) = f(H 2 SO 4, T) + f(H 2 SO 4, NH 3, T) + f(H 2 SO 4, Q, T) + f(H 2 SO 4, NH 3, Q, T) + f(H 2 SO 4, C, T) + f(H 2 SO 4, C, Q, T) + f(C, T) + f(C, Q, T) +f(NH 3, C, T) + f(NH 3, C, Q, T)…