What is it about?
The TRMM3B42 precipitation product has higher rain frequencies than GPCP, and in regime of deep convection it has higher extreme rain rates. Discrepancies in surface evaporation over the ocean among OAFlux, SEAFlux, and IFREMER depend on large-scale moisture flux convergence. In divergent regimes, observation-based P-E have positive skewness, while those derived from reanalyses are more symmetric about the means.
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Why is it important?
There are many products of precipitation and surface evaporation in the community. This work quantifies the discrepancies among a few of them in terms of climate regimes defined by large-scale moisture transport, showing that the discrepancies are systematic and related to local climate conditions.
Perspectives
This is one of the applications of moisture-transport phase space.
Sun Wong
JPL/California Institute of Technology
Read the Original
This page is a summary of: Regime-Dependent Differences in Surface Freshwater Exchange Estimates Over the Ocean, Geophysical Research Letters, January 2018, American Geophysical Union (AGU),
DOI: 10.1002/2017gl075567.
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