Pirkka Ollinaho
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Stochastic representations of model uncertainties at ECMWF: State of the art and future vision
M Leutbecher, SJ Lock, P Ollinaho, STK Lang, G Balsamo, P Bechtold, ...
Quarterly Journal of the Royal Meteorological Society 143 (707), 2315-2339, 2017
1422017
Efficient MCMC for climate model parameter estimation: Parallel adaptive chains and early rejection
A Solonen, P Ollinaho, M Laine, H Haario, J Tamminen, H Järvinen
Bayesian Analysis 7 (3), 715-736, 2012
962012
Towards process‐level representation of model uncertainties: stochastically perturbed parametrizations in the ECMWF ensemble
P Ollinaho, SJ Lock, M Leutbecher, P Bechtold, A Beljaars, A Bozzo, ...
Quarterly Journal of the Royal Meteorological Society 143 (702), 408-422, 2017
722017
NWP model forecast skill optimization via closure parameter variations
P Ollinaho, M Laine, A Solonen, H Haario, H Järvinen
Quarterly journal of the royal meteorological society 139 (675), 1520-1532, 2013
232013
Parameter variations in prediction skill optimization at ECMWF
P Ollinaho, P Bechtold, M Leutbecher, M Laine, A Solonen, H Haario, ...
Nonlinear processes in geophysics 20 (6), 1001-1010, 2013
172013
Optimization of NWP model closure parameters using total energy norm of forecast error as a target
P Ollinaho, H Järvinen, P Bauer, M Laine, P Bechtold, J Susiluoto, ...
Geoscientific Model Development 7 (5), 1889-1900, 2014
142014
Feasibility of assimilating ASCAT surface winds into a Limited Area Model
P Ollinaho
Helsingfors universitet, 2010
42010
EC-Earth3-AerChem, a global climate model with interactive aerosols and atmospheric chemistry participating in CMIP6
T van Noije, T Bergman, P Le Sager, D O'Donnell, R Makkonen, ...
Geoscientific Model Development Discussions, 1-46, 2020
22020
Necessary conditions for algorithmic tuning of weather prediction models using OpenIFS as an example
L Tuppi, P Ollinaho, M Ekblom, V Shemyakin, H Järvinen
Geoscientific Model Development 13 (11), 5799-5812, 2020
12020
Total energy norm in NWP closure parameter optimization
P Ollinaho, H Järvinen, P Bauer, M Laine, P Bechtold, J Susiluoto, ...
Geosci. Model Dev. Discuss 6 (4), 6717-6740, 2013
12013
OpenIFS@ home version 1: a citizen science project for ensemble weather and climate forecasting
S Sparrow, A Bowery, GD Carver, MO Köhler, P Ollinaho, ...
Geoscientific Model Development 14 (6), 3473-3486, 2021
2021
Ensemble prediction using a new dataset of ECMWF initial states–OpenEnsemble 1.0
P Ollinaho, GD Carver, STK Lang, L Tuppi, M Ekblom, H Järvinen
Geoscientific Model Development 14 (4), 2143-2160, 2021
2021
Ensemble prediction with OpenIFS
P Ollinaho
EGU General Assembly Conference Abstracts, 18197, 2020
2020
Algorithmic tuning of spread–skill relationship in ensemble forecasting systems
M Ekblom, L Tuppi, V Shemyakin, M Laine, P Ollinaho, H Haario, ...
Quarterly Journal of the Royal Meteorological Society 146 (727), 598-612, 2020
2020
Algorithmic tuning of spread–skill relationship in ensemble forecasting systems
V Shemyakin, H Haario, M Ekblom, L Tuppi, M Laine, P Ollinaho, ...
Wiley, 2019
2019
On extracting information from closure parameter convergence tests using OpenIFS
L Tuppi, P Ollinaho, M Ekblom, M Laine, V Shemyakin, H Järvinen
2019
Optimization of Aerosol Seeding In rain enhancement Strategies (OASIS).
H Korhonen, H Lihavainen, S Niemelä, S Romakkaniemi, H Vehkamäki, ...
Geophysical Research Abstracts 21, 2019
2019
OpenEPS-An ensemble prediction system emulator for OpenIFS
P Ollinaho, J Lento, G Carver, V Sinclair, H Järvinen
EGU General Assembly Conference Abstracts, 17529, 2017
2017
Stochastically Perturbed Parametrizations (SPP)-representing model uncertainties on the process-level
P Ollinaho, SJ Lock, M Leutbecher, P Bechtold, A Beljaars, A Bozzo, ...
EGU General Assembly Conference Abstracts, 17706, 2017
2017
Parametric Uncertainty in Numerical Weather Prediction Models
P Ollinaho
Helsingin yliopisto, 2014
2014
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