Abstract: he wintertime Arctic temperature (T; surface?400 hPa) decreased from 1979 to 1997 and increased rapidly from 1998 to 2012, in contrast to the global mean surface air temperature. Here aspects of circulation variability ...

Abstract: his paper applies a new field significance test to establish the existence and consistency of ENSO teleconnection patterns across models and observations. An ENSO teleconnection pattern is defined as a field of regression ...

Abstract: egression patterns often are used to diagnose the relation between a field and a climate index, but a significance test for the pattern ?as a whole? that accounts for the multiplicity and interdependence of the tests has ...

Abstract: The eddy?zonal flow feedback in the Southern Hemisphere (SH) winter and summer is investigated in this study. The persistence time scale of the leading principal components (PCs) of the zonal-mean zonal flow shows substantial ...

Abstract: A new split-jet index is defined in this study, and composites based on this index show that the split-flow regime is characterized by a cold?warm?cold tripolar temperature anomaly in the South Pacific that extends equatorward ...

Abstract: This paper examines the extent to which an empirical correction method can improve forecasts of the National Centers for Environmental Prediction (NCEP) operational Global Forecast System. The empirical correction is based ...

Abstract: To widen the applications of large-diameter prestressed high-strength concrete (PHC) piles to stiff strata, this paper introduces a novel hybrid piling technique, including the equipment and construction procedures. The ...

Abstract: AbstractBecause of its persistence on seasonal time scales, Arctic sea ice thickness (SIT) is a potential source of predictability for summer sea ice extent (SIE). New satellite observations of SIT represent an opportunity ...

Abstract: AbstractThis study proposes an integrated diagnostic framework based on atmospheric circulation regime spatial patterns and frequencies of occurrence to facilitate the identification of model systematic errors across ...