This paper addresses the conditions in which GCM and downscaled solutions diverge for targeted processes under historical and future climate conditions. Downscaling is a crucial part of making climate model outputs useable by the wider science and policy community. Understanding the properties and limitations of downscaling should hence be of interest far beyond the model development community.
This paper addresses the conditions in which GCM and downscaled solutions diverge for targeted...
We evaluate downscaled products by examining locally relevant co-variances during precipitation events. Common statistical downscaling techniques preserve expected co-variances during convective precipitation (a stationary phenomenon). However, they dampen future intensification of frontal precipitation (a non-stationary phenomenon) captured in global climate models and dynamical downscaling. Our study quantifies a ramification of the stationarity assumption underlying statistical downscaling.
We evaluate downscaled products by examining locally relevant co-variances during precipitation...