Long-range memory in Earth's climate response - analysis of paleoclimatic records and climate model simulations
Paper 1: Østvand, L., Nilsen, T., Rypdal, K., Divine, D. & Rypdal, M. (2014). Long-range memory in internal and forced dynamics of millennium-long climate model Simulations. Also available in Earth Sys. Dyn. 5: 295-308. (PDF)
Paper 2: Nilsen, T., Rypdal K. & Fredriksen, H.-B. (2016). Are there multiple scaling regimes in Holocene temperature records? Also available in Earth Sys. Dyn. 7:419-439. (PDF)
Paper 3: Nilsen. T., Werner, J. P. & Divine, D. V. How wrong are climate field reconstruction techniques in reconstructing a climate with long-range memory? (Manuscript). Discussion paper available in Climate of the Past. (PDF)
The memory properties in paleoclimate temperature records based on model simulations and proxy-reconstructions have been investigated, to find out if these records exhibit long-range memory in a similar manner as many instrumental temperature records. On time scales from years to centuries and even millennia, long-range memory is identified in the paleoclimate records using a toolbox of statistical time series analysis techniques. However, extra care must be taken when making inference about the memory in proxy-based temperature reconstructions. These records are subject to noise, uncertainties and biases that are not relevant to instrumental temperature.
ForlagUiT Norges arktiske universitet
UiT The Arctic University of Norway
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