Climatology and Trends in Extratopical Cyclones

Affiliation(s)PIProject periodFunded by
DAS Kunkel, Kenneth E 09/01/2009 - 08/31/2011 DOC - National Oceanic & Atmospheric Administration MASC

Project Description

In this project, we propose to construct a global climatology of extra-tropical cyclones utilizing the Historical Reanalysis data set currently under construction set for completion in mid-2009 (G. Compo, personal communication). Once the climatology has been established, the Historical Reanalysis will be used to examine temporal and spatial variability and changes in storms, both number and intensity. An online database of cyclone tracks and associated products will be created. Overarching goals in the analysis are to identify latitudinal shifts over time in the mean storm track, to determine whether there are longitudinal variations in such shifts, and to investigate mean changes and spatial variability in storm number and intensity. Within these overarching goals, we propose to investigate whether there were changes in storm tracks and intensities coincident with notable global and regional climate variations, including the rapid global warming in the early part of the 20th Century following by cooling during the middle of the 20th Century, the wetness in the western U.S. during the early part of the 20th Century, and the drought during the Dust Bowl era of the 1930s. We will also examine whether there were changes over time in the relationships between storm tracks and climate modes of variability, particularly ENSO.