Reply to comment by Cristina Archer and Mark Jacobson on "Evaluation of a wind power parameterization using tower observations"
Lazarus, Steven M.
Bewley, Jennifer L.
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A thorough examination of a parameterization and its potential biases is both very relevant and important. There are numerous, examples in the meteorological literature that address the global application issue. (For example, GCMs often parameterize their subgrid-scale stratiform clouds based on a simple relative humidity relationship whereby the creation/removal of the subgrid stratus are governed by an arbitrary relative humidity threshold that is often assumed to be the same everywhere, despite observational evidence otherwise.). Regardless, AJ continue to show fast wind speeds (power class 6 or greater) both on and offshore of the Florida east coast (see http://www.stanford.edu/group/ efmh/winds/us_winds.html). LB05 believe the relevant question to be whether or not we are looking at real variability in the 80-m wind estimates presented in AJ03 and AJ04 or some artifact of the parameterization. One can essentially ask the reverse question, i.e., what would the 10-m wind be, given an 80-m wind (an issue that obviously depends on surface roughness, stability, etc.). Ultimately, it might be interesting (and instructive) to present a follow-up study that illustrates, in more detail, the true AJ method as it applies to the nearly collocated but disparate power classes along the Florida east coast. Copyright 2006 by the American Geophysical Union.