9 citations · 10 across the 9 of their papers we have counts for
9 papers
Auditing the Global Carbon Budget: Exploring the 2024--2025 Vintage Shift
Mikkel Bennedsen, Eric Hillebrand, Siem Jan Koopman
The Global Carbon Budget (GCB), the community reference dataset for the carbon cycle, is reissued annually. The 2025 release introduces several adjustments to the published series…
Continuous-time state space analysis of d18O, d13C, and CO2 in the Cenozoic Era
Mikkel Bennedsen, Eric Hillebrand, Kathrine Larsen +2
We develop a continuous-time state-space framework for the joint reconstruction of three Cenozoic climate proxies, benthic foraminiferal d18O and d13C and atmospheric CO2, from irr…
Neural networks for nonlinear regression with serially correlated disturbances: Evidence from cloud cover
Sebastian Jensen, Siem Jan Koopman
We propose a new treatment of nonlinear regression with serially correlated disturbances that incorporates autoregressive moving average structures into feedforward neural networks…
A Statistical Reduced Complexity Climate Model for Probabilistic Analyses and Projections
Mikkel Bennedsen, Eric Hillebrand, Siem Jan Koopman
We propose a new statistical reduced complexity climate model. The centerpiece of the model consists of a set of physical equations for the global climate system which we show how…
Estimating breakpoints between climate states in the Cenozoic Era
Mikkel Bennedsen, Eric Hillebrand, Siem Jan Koopman +1
This study presents a statistical time-domain approach for identifying transitions between climate states, referred to as breakpoints, using well-established econometric tools. We…
Continuous-time state-space methods for d18O and d13C in the Cenozoic Era
Mikkel Bennedsen, Eric Hillebrand, Siem Jan Koopman +2
Time series analysis of d18O and d13C from benthic foraminifera for paleoclimatology poses significant challenges. The data span tens of millions of years, with sparse early record…
A Regression-Based Approach to the CO2 Airborne Fraction: Enhancing Statistical Precision and Tackling Zero Emissions
Mikkel Bennedsen, Eric Hillebrand, Siem Jan Koopman
The global fraction of anthropogenically emitted carbon dioxide (CO) that stays in the atmosphere, the CO airborne fraction, has been fluctuating around a constant value ov…
Is there evidence of a trend in the CO2 airborne fraction?
Mikkel Bennedsen, Eric Hillebrand, Siem Jan Koopman
In a paper recently published in this journal, van Marle et al. (van Marle et al., 2022) introduce an interesting new data set for land use and land cover change CO2 emissions (LUL…
Feasible Invertibility Conditions for Maximum Likelihood Estimation for Observation-Driven Models
F Blasques, P Gorgi, S Koopman +1
Invertibility conditions for observation-driven time series models often fail to be guaranteed in empirical applications. As a result, the asymptotic theory of maximum likelihood a…