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TOC > MSC data > WCPS > WCPS Changelog

Chronology of changes to the Water Cycle Prediction System (WCPS)

Wednesday December 1st, 2021

Upgrade to Version 3.0.0 of the Water Cycle Prediction System (WCPS) at the Canadian Meteorological Centre

Effective Wednesday, December 1st, 2021, the Canadian Meteorological Centre (CMC) will update the Water Cycle Prediction System (WCPS) to v3.0.0.

The modifications to WCPS v3.0.0 compared with the previous operational version are as follows:

  • RDPS v8.0.0 replaces v7.1.0 as the pilot system
  • New larger domain covering the Gulf of St. Lawrence (as well as the Great Lakes)
  • For the pseudo-analysis/forecast components:
    • Increased resolution from 2km/5km (interior/coastlines) to 1km/2km
    • Ice loading over Great Lakes
    • Atmospheric pressure gradient forcing (inverse barometric effect for storm-surges)
  • For the hydrological component:
    • New observation stations of river discharge: Quebec, United States Geologicial Survey (USGS)
    • Upstream propagation of information derived from observations of river discharge
    • New climatological fields of drainage
    • Implementation of the Dynamically Zoned Target Release (DZTR) model to represent management rules of individual regulated reservoirs
    • A new numerical solver in WATROUTE

The official note announcing this implementation is available at this location.

For more information, please consult the technical specifications document for WCPS v3.0.0 available at this link.

A technical note with more details on this change is available at this link.

Tuesday January 21, 2020

Upgrade to Version 2.2.1 of WCPS adapted to the New High Performance Computing Infrastructure.

See details at this link

Wednesday July 3, 2019

Upgrade to Version 2.1.0 of the Water Cycle Prediction System (WCPS) at the Canadian Meteorological Centre

Effective Wednesday July 3rd, 2019, the Canadian Meteorological Centre (CMC) will update the Water Cycle Prediction System (WCPS) to v2.1.0.

The modifications to WCPS v2.1.0 compared with the previous operational version are as follows:

For more information, please consult the technical specifications document for WCPS v2.1.0 available at this link.

A technical note with more details on this change is available at this link.

Monday March 4, 2019

New Water Cycle Prediction System (WCPS) declared operational at the Canadian Meteorological Centre

On Monday March 4th 2019, the Meteorological Service of Canada's Canadian Meteorological Centre (CMC) declared operational the Water Cycle Prediction System (WCPS v2.0.0) after having run in experimental mode for almost 3 years.

A copy of the official note announcing this important implementation is available at this link.

A technical note with more details on this system is available at this link.

The technical specifications document for WCPS 2.0.0 is available at this link.