Hi there! I am Joseph Chan, a physicist-turned-meteorologist, hailing from the tiny tropical island nation of Singapore. I am currently an Assistant Professor in the Department of Geography at the Ohio State University.

Figuring out how to keep the effects of chaos at bay is what I do for my research. Because weather systems are very chaotic, errors in the data used in weather forecasting, no matter how small in size or scale, have a tendency to grow quickly and corrupt forecasts. To restrain these effects of chaos, it is necessary to reduce these errors as much as possible.

In my research, I enhance the accuracy of forecast-creating datasets by combining large sets of computer simulations (aka, ensembles) with observations of the atmosphere. This process is known as ensemble data assimilation (EnsDA). I specialize in the EnsDA of satellite observations and in developing novel EnsDA algorithms. 

Click here for my CV.