Browsing ODA Open Digital Archive by Author "Seip, Knut Lehre"
Now showing items 21-28 of 28
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The North Atlantic oscillations: cycle times for the NAO, the AMO and the AMOC
Seip, Knut Lehre; Grøn, Øyvind; Wang, Hui (Climate;Volume 7, Issue 3, Journal article; Peer reviewed, 2019-03-19)We show that oceanic cycle lengths persist across oceanic cyclic time-series by comparing cycles in series that come from “sister” measurements in the North Atlantic Ocean. These are the North Atlantic oscillation (NAO), ... -
The North Atlantic oscillations: Lead-lag relations for the AMOC, the AMO, and the AMOC. A high-resolution lead-lag analysis
Seip, Knut Lehre; Wang, Hui (Climate;Volume 10 / Issue 5, Peer reviewed; Journal article, 2022-05-05)Several studies examine cycle periods and the interactions between the three major climate modes over the North Atlantic, namely the Atlantic meridional overturning circulation (AMOC), the Atlantic multidecadal oscillation ... -
The North atlanticoOscillations: Lead–lag Relations for the NAO, the AMO, and the AMOC: A high-resolution lead–lag analysis
Seip, Knut Lehre; Wang, Hui (Peer reviewed; Journal article, 2022)Several studies examine cycle periods and the interactions between the three major climate modes over the North Atlantic, namely the Atlantic meridional overturning circulation (AMOC), the Atlantic multidecadal oscillation ... -
On the statistical nature of distinct cycles in global warming variables
Seip, Knut Lehre; Grøn, Øyvind (Peer reviewed; Journal article; Journal article, 2017-01-10)Cycle times found in many oceanic time series have been explained with references to external mechanisms that act on the systems. Here we show that when we extract cycle times from 100 sets of paired random series, we find ... -
A Review of Ocean Dynamics in the North Atlantic: Achievements and Challenges
Seip, Knut Lehre (Climate;Volume 8, Issue 4, Journal article; Peer reviewed, 2020-03-30)I address 12 issues related to the study of ocean dynamics and its impact on global temperature change, regional and local climate change, and on the North Atlantic ecosystem. I outline present achievements and challenges ... -
Scoring Six Detrending Methods on Timing, Lead‑Lag Relations, and Cycle Periods: An Empirical Study of US and UK Recessions 1977–2020
Seip, Knut Lehre; Zhang, Dan (Peer reviewed; Journal article, 2024)This study evaluates six commonly used detrending methods and discuss how detrending may change the timing of events, the identification of lead-lag relations between GDP and employment, and the identification of cycle ... -
Temperature, growth season length and phytoplankton abundance in the Gulf of Maine
Seip, Knut Lehre (Marine & Freshwater Research;, Journal article; Peer reviewed, 2015-03-19)I show that the relation between annual average phytoplankton concentration (as mg Chl-a.m-3) and in situ sea surface temperature, SST, is positive (Chl-a â 0.5 Ã SST, r = 0.8, p < 0.001) at an average temperature of ... -
The yield curve as a leading indicator: accuracy and timing of a parsimonious forecasting model
Seip, Knut Lehre; Zhang, Dan (Forecasting;volume 3, issue 2, Peer reviewed; Journal article, 2021-05-28)Previous studies have shown that the treasury yield curve, T, forecasts upcoming recessions when it obtains a negative value. In this paper, we try to improve the yield curve model while keeping its parsimony. First, we ...