TOC > MSC data > HRDPS-North > HRDPS-North Changelog
Chronology of changes to the High Resolution Deterministic Prediction System North (HRDPS-North)
Tuesday June 11, 2024
Upgrade to Version 2.1.0 of the High Resolution Deterministic Prediction System North (HRDPS-North) at the Canadian Meteorological Centre
On Tuesday June 11st, 2024, starting with the 1200 UTC run, the Canadian Meteorological Centre (CMC) will upgrade the High Resolution Deterministic Prediction System North (HRDPS-North) to version 2.1.0.
Significant changes:
- Upgraded to GEM version 5.2.1, enhancing atmospheric physics and improving model performance.
- Bourgouin approach for surface precipitation phase partitioning.
- Improved initial and boundary conditions sourced from a component of the upgraded Global Deterministic Prediction System (GDPS) at 10km horizontal resolution.
- Updated ocean-ice initial conditions from the Regional Ice-Ocean Prediction System (RIOPS), providing more accurate sea-ice data.
- Implemented the SLEVE vertical coordinate system.
A brief summary of the innovations included in this upgrade and their impact on performance can be consulted in this document.
The official note announcing the implementation of these changes is available at this link.
A technical note with more details on HRDPS-North 2.1.0 is available at this link.
The technical specifications document for HRDPS-North 2.1.0 is available at this link.
Wednesday August 30, 2023
Upgrade to Version 2.0.0 of the High Resolution Deterministic Prediction System North (HRDPS-N) at the Canadian Meteorological Centre
On Wednesday, August 30, 2023, starting with the 1200 UTC run, the Canadian Meteorological Centre (CMC) will upgrade the High Resolution Deterministic Prediction System North (HRDPS-N) to version 2.0.0.
The major changes included in this upgrade are summarized as follows:
- Fields calculated on a much large domain
- Initial and lateral boundary conditions for the atmosphere from the latest operational version of the Global Deterministic Prediction System (GDPS) whose details are available at this link
- Oceanic initial conditions are provided by the Regional Ice Ocean Prediction System (RIOPS) whose details are available at this link
The official note announcing the implementation of these changes is available at this link.
A technical note with more details on the HRDPS-N 2.0.0 is available at this link.
The technical specifications document for the HRDPS-N 2.0.0 is available at this link.
Tuesday June 28, 2022
Upgrade to Version 1.2.0 of the HRDPS-N adapted to the New High Performance Computing Infrastructure.
See details at this link.
Wednesday December 1st, 2021
Upgrade to Version 1.0.0 of the High Resolution Deterministic Prediction System North (HRDPS-N) at the Canadian Meteorological Centre
On Wednesday December 1st, 2021, starting with the 1200 UTC run, the Canadian Meteorological Centre (CMC) will retire the Canadian Arctic Prediction System (CAPS) and replace it with the High Resolution Deterministic Prediction System North (HRDPS-N) version 1.0.0.
The changes included in this upgrade are summarized as follows :
- Remove the ice-ocean coupling (CAPS was coupled).
- Migration to GEM version 5.1 with retro-physic.
- Model configuration similar to HRDPS-National.
- New geophysical fields.
- New version of the RDPS pilot model, version 8.0.0.
The official note announcing the implementation of these changes is available at this link.
A technical note with more details on HRDPS-North 1.0.0 is available at this link.
The technical specifications document for HRDPS-North 1.0.0 is available at this link.