Abstract While the influence of Pacific Decadal Oscillation (PDO) on precipitation has been extensively studied, its extremes remains not well-known. Based a series generalized extreme value modeling experiments, this paper demonstrates some distinct regional patterns PDO’s worldwide. In eastern China, well-known ‘southern flood (drought) and northern drought (flood)’ pattern in summer correspo...

Combining high-resolution core-level spectroscopy, scanning tunneling microscopy and density-functional theory calculations we reanalyze the Pd(1 0 0)–ð ffiffiffi 5 p ffiffiffi 5 p ÞR27 -O surface oxide phase. We find that the prevalent structural model, a rumpled PdO(0 0 1) film suggested by previous low energy electron diffraction (LEED) work [Surf. Sci. 494 (2001) L799], is incompatible with...

Cooperative reactivity plays an important role in the oxidation of CO to CO(2) by palladium oxide cations and offers insight into factors which influence catalysis. Comprehensive studies including guided-ion-beam mass spectrometry and theoretical investigations reveal the reaction products and profiles of PdO(2)(+) and PdO(3)(+) with CO through oxygen radical centers and dioxygen complexes boun...

We here present a reconstruction (1725–1999) of the winter Pacific North American (PNA) pattern based on three winter climate sensitive tree ring records from the western USA. Positive PNA phases in our record are associated with warm phases of ENSO and PDO and the reorganization of the PNA pattern towards a positive mode is strongest when ENSO and PDO are in phase. Regime shifts in our PNA rec...

Climate in the North Pacific and North American sectors has experienced interdecadal shifts during the twentieth century. A network of recently developed tree-ring chronologies for Southern and Baja California extends the instrumental record and reveals decadal-scale variability back to 1661. The Pacific decadal oscillation (PDO) is closely matched by the dominant mode of tree-ring variability ...

Hydrologic time series of groundwater levels, streamflow, precipitation, and tree-ring indices from four alluvial basins in the southwestern United States were spectrally analyzed, and then frequency components were reconstructed to isolate variability due to climatic variations on four time scales. Reconstructed components (RCs), from each time series, were compared to climatic indices like th...

Observations suggest that the tropical Pacific Ocean has lost oxygen since 1960s leading to expansion of its minimum zone (OMZ). Attribution anthropogenic forcing is, however, difficult because limited data availability and large natural variability introduced by Decadal Oscillation (PDO). Here, we evaluate PDO influence on dynamics OMZ extent using observations hindcast simulations from two gl...

Variations in the Pacific decadal oscillation (PDO) can influence marine ecosystems and regional climate phenomena. Accurate long-term forecasts of PDO are therefore crucial for governance. This paper presents a novel seasonal gated recurrent unit (SGRU) model, based on deep learning, forecasting at multiple time scales. The model first decomposes complex nonlinear index series into three separ...

Abstract The impact of the enhancing Pacific-North American teleconnection (PNA) on intensity first mode SST anomalies (SSTa) in wintertime North Pacific [known as decadal oscillation (PDO)-like pattern] under global warming is studied using reanalysis datasets and 12 selected CMIP5 models. robust observational result PNA one month ahead PDO shows that has a great effect PDO-like SSTa. intensit...