[1] The first annually resolved sedimentary record from the Cretaceous is used to develop time series of inter‐annual and decadal scale climate variability from the Arctic Ocean. Analysis of records spanning 1000 years reveals strong periodicities in the quasi‐biennial oscillation and El Niño ‐ Southern Oscillation (ENSO) band as well as a 14 year period, which all closely match periodicities t...

A HOLOCENE RESEARCH PAPER Abstract: Interannual time-scale associations between fire occurrence and drought indices, the Southern Oscillation, and other synoptic patterns demonstrate that large-scale, long-term atmospheric features are precursors to regional fire activity. However, our knowledge of fire-climate relations over longer (century) timescales is fragmentary because of the rarity of c...

Climate influences marine ecosystems on a range of time scales, from weather-scale (days) through to climate-scale (hundreds of years). Understanding of interannual to decadal climate variability and impacts on marine industries has received less attention. Predictability up to 10 years ahead may come from large-scale climate modes in the ocean that can persist over these time scales. In Austra...

Recent climate reconstructions are analyzed specifically for insights into those patterns of climate variability in past centuries with greatest impact on the North American region. Regional variability, largely associated with the El Nino/Southern Oscillation (ENSO) phenomenon, the North Atlantic Oscillation (NAO), and multidecadal patterns of natural variability, are found to mask the emergen...

I report the discovery of a low frequency temperature oscillation in the eastern North Atlantic (NA), which was signi®cantly correlated with the Southern Oscillation Index (SOI) in the tropical Paci®c, but led the latter index by a number of months. This discovery is signi®cant, because it demonstrates a link between the tropical Paci®c and the high northerly latitudes which cannot readily be e...

The behavior of convection and the Madden–Julian oscillation (MJO) is compared in two simulations from the same global climate model but with two very different treatments of convection: one has a conventional parameterization of moist processes and the other replaces the parameterization with a two-dimensional cloud-resolving model, the so-called superparameterization. The different behavior o...

El Niño – Southern Oscillation (ENSO) effects on the European circulation features and on the regional climate of Hungary are evaluated in this paper. European climate is represented by atmospheric macrocirculation patterns (MCPs). Local climate characteristics are linked to ENSO phases through regionally averaged temperature values and precipitation amounts. Significant statistical relationshi...

Climate has always varied. In Australia, the impact of the El Niño – Southern Oscillation on variations in rainfall over centuries has been documented (e.g. Nicholls 1988, 1989). Other natural, internal processes also affect climate on different time-scales. As well, volcanic activity is known to cause cooling of the surface temperature, and variations in solar activity and orbital changes that...

The upper kilometer of the Hawaiian Scientific Drilling Program core consists of lavas that were emplaced subaerially, burying paleosols. These paleosols were preserved with minimal alteration and are used to construct a ∼330-kyr Quaternary climate record. Within the temporal resolution of this record, there appears to be a ∼100-kyr climate oscillation between cool-dry and warm-wet conditions, ...

The Medieval Climate Anomaly (MCA) was the most recent pre-industrial era warm interval of European climate, yet its driving mechanisms remain uncertain. We present here a 947-year-long multidecadal North Atlantic Oscillation (NAO) reconstruction and find a persistent positive NAO during the MCA. Supplementary reconstructions based on climate model results and proxy data indicate a clear shift ...