Martin Rypdal
Biographic Data
| ID | 7851026 |
|---|---|
| NAME | Martin Rypdal |
| GIVEN NAMES | Martin |
| FAMILY NAME | Rypdal |
| SIGNATURE | RYPDAL M |
| AFFILIATIONS | UiT The Arctic University of Norway |
| ORCID | 0000-0003-0053-665X |
| VERIFIED | Yes |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 4 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2020 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 0 |
Arctic summer sea ice loss will accelerate in coming decades
The Arctic sea ice (ASI) is expected to decrease with further global warming. However, considerable uncertainty remains regarding the temperature range that would lead to a completely ice-free Arctic. Here, we combine satellite data and a large suite of models from the latest phase of the Coupled Model Intercomparison Project (CMIP6) to develop an empirical, observation-based projection of the September ASI area for increasing global mean surface…
Estimation of Excess Mortality and Years of Life Lost to Covid-19 in Norway and Sweden between March and November 2020
We estimate the weekly excess all-cause mortality in Norway and Sweden, the years of life lost (YLL) attributed to COVID-19 in Sweden, and the significance of mortality displacement. We computed the expected mortality by taking into account the declining trend and the seasonality in mortality in the two countries over the past 20 years. From the excess mortality in Sweden in 2019/20, we estimated the YLL attributed to COVID-19 using the life expe…
A Parsimonious Description and Cross-Country Analysis of Covid-19 Epidemic Curves
In a given country, the cumulative death toll of the first wave of the COVID-19 epidemic follows a sigmoid curve as a function of time. In most cases, the curve is well described by the Gompertz function, which is characterized by two essential parameters, the initial growth rate and the decay rate as the first epidemic wave subsides. These parameters are determined by socioeconomic factors and the countermeasures to halt the epidemic. The Gomper…
Intervention Fatigue is the Primary Cause of Strong Secondary Waves in the Covid-19 Pandemic
As of November 2020, the number of COVID-19 cases was increasing rapidly in many countries. In Europe, the virus spread slowed considerably in the late spring due to strict lockdown, but a second wave of the pandemic grew throughout the fall. In this study, we first reconstruct the time evolution of the effective reproduction numbers R(t) for each country by integrating the equations of the classic Susceptible-Infectious-Recovered (SIR) model. We…
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A Parsimonious Description and Cross-Country Analysis of Covid-19 Epidemic Curves
In a given country, the cumulative death toll of the first wave of the COVID-19 epidemic follows a sigmoid curve as a function of time. In most cases, the curve is well described by the Gompertz function, which is characterized by two essential parameters, the initial growth rate and the decay rate as the first epidemic wave subsides. These parameters are determined by socioeconomic factors and the countermeasures to halt the epidemic. The Gomper…
Intervention Fatigue is the Primary Cause of Strong Secondary Waves in the Covid-19 Pandemic
As of November 2020, the number of COVID-19 cases was increasing rapidly in many countries. In Europe, the virus spread slowed considerably in the late spring due to strict lockdown, but a second wave of the pandemic grew throughout the fall. In this study, we first reconstruct the time evolution of the effective reproduction numbers R(t) for each country by integrating the equations of the classic Susceptible-Infectious-Recovered (SIR) model. We…
Estimation of Excess Mortality and Years of Life Lost to Covid-19 in Norway and Sweden between March and November 2020
We estimate the weekly excess all-cause mortality in Norway and Sweden, the years of life lost (YLL) attributed to COVID-19 in Sweden, and the significance of mortality displacement. We computed the expected mortality by taking into account the declining trend and the seasonality in mortality in the two countries over the past 20 years. From the excess mortality in Sweden in 2019/20, we estimated the YLL attributed to COVID-19 using the life expe…
Arctic summer sea ice loss will accelerate in coming decades
The Arctic sea ice (ASI) is expected to decrease with further global warming. However, considerable uncertainty remains regarding the temperature range that would lead to a completely ice-free Arctic. Here, we combine satellite data and a large suite of models from the latest phase of the Coupled Model Intercomparison Project (CMIP6) to develop an empirical, observation-based projection of the September ASI area for increasing global mean surface…
Computer Science (3 works) · Coronavirus disease 2019 (COVID-19 (3 works) · Demography (3 works) · Demography (3 works) · Medicine (3 works) · Complex Systems and Time Series Analysis (2 works) · COVID-19 epidemiological studies (2 works) · Geography (2 works) · Geology (2 works) · Mathematics (2 works)