Announcements

Observed changes in precipitation extremes and their attribution at the global, continental, and regional scales

Precipitation extremes can cause severe impacts on society and are relevant to the design of infrastructure. This presentation will provide an overview of observed changes in precipitation extremes and their attribution at the global, continental, and regional scales. First, statistical analyses of thousands of high-quality observing stations across the globe show precipitation extremes have intensified with the change rate consistent with Clausius-Clapeyron. Second, a growing number of attribution studies has substantially increased our confidence that changes in precipitation extremes are the result of human influence on the climate, globally and at continental scales. This includes evidence from a very recent study with a novel detection and attribution analysis method that considers observed changes in annual maximum 1-day and 5-day precipitation amounts at Rx1day and Rx5day at individual stations. Nevertheless, intensification is not observed in all IPCC regions, and can only be detected in some regions. Anthropogenic influence is estimated to have substantially decreased the waiting time between extreme events, which has important implications for infrastructure design and climate change adaptation policy.

Zoom Meeting Presenter:  Dr. Qiaohong Sun

When:  October 27, 2021 - 3:00pm to 4:00pm

Where: This talk will be held over Zoom Meetings.

Please visit the Pacific Climate Impacts Consortium to register for the Zoom Meetings.

 

The 20th annual River Restoration Northwest Symposium will be held February 7 - 11, 2022 

Registration will initially be limited to 200, this number will be re-evaluated as the event grows closer, if this number changes we will post an announcement to our social media accounts.  Registration for RRNW members is projected to open on November 1st. and projected to be available for non-members on November 8th.  

We will be announcing sponsorship opportunities on November 1st. If your organization has sponsored the event in the past, an invitation letter will be sent out in the near future. 

We look forward to reconvening with you!

RRNW Membership is a great way to get involved with like-minded river restoration enthusiasts! Become a member.

We will be announcing sponsorship opportunities on November 1st. If your organization has sponsored the event in the past, an invitation letter will be sent out in the near future.

Thank you to our amazing 2021 Sponsors!

Platinum: NV5 Geospatial, Interfluve, TetraTech
Gold: Northwest Hydraulic Consultants, Wolf Water Resources, Kleinschmidt Associates
Silver: GeoEngineers, Natural Systems Design, ESA, WRA, River Design Group, Stillwater Sciences, West Consultants Inc., Otak
Bronze: Aspect Consulting, CBEC, Mead&Hunt, Ecological Land Services, Waterfall Engineering

 

B.C. Streamflow Inventory Map

B.C. Streamflow Inventory Map B.C. Streamflow Inventory Map (arcgis.com) based on previously published 6 (six) regional streamflow inventory reports is now available for use. The map provides access to key streamflow statistics and basin parameters for each hydrometric station from these reports. Upstream watershed boundaries were delineated in-house to calculate the basin parameters and therefore vary from the values published by the Water Survey of Canada. The standard discharge data used are published by the Water Survey of Canada (WSC) collected through the Canada-British Columbia Hydrometric Program (CBCHP). Most of the parameters presented in these reports are calculated based on data from the 1981 to 2010 Climate Normal period. Flow duration analyses and recurrence intervals of peak and low flows, which are based on all available data.

The results of these analyses are compiled in datasheets, maps, tabular and graphical forms and grouped by hydrologic zones. This information enables hydrologists and engineers to make quicker and easier preliminary hydrologic estimates for water management purposes and the planning and preliminary design of water resource projects.

For More information please contact:

Ashfaque.Ahmed@gov.bc.ca

 

Release of New Streamflow Reports (Dec. 10, 2020).

Revised and updated regional streamflow inventory reports are now available in the EcoCat website. There are six reports cover Natural Resource Region under the Ministry of Forests, Lands and Natural Resource Operations. The revision includes updated data and a new 30-year normal period of 1981–2010 and flow duration analyses of mean daily discharge. The standard discharge data used are published by the Water Survey of Canada (WSC) through the Canada-British Columbia Hydrometric Program (CBCHP). Most of the parameters presented in these reports are calculated based on data from the 1981–2010 Climate Normal period, except for flow duration analyses and recurrence interval of peak and low flows which are based on all available data. The results of these analyses are compiled in datasheets, maps, tabular and graphical forms—grouped by hydrologic zones. This information enables hydrologists and engineers to quickly and easily make preliminary hydrologic estimates for water management purposes and the planning and preliminary design of water resource projects.

Revised and updated Inventory of Streamflow reports are available at:

Inventory of Streamflow in the Kootenay Region: http://a100.gov.bc.ca/pub/acat/public/viewReport.do?reportId=59010

Inventory of Streamflow in the Thompson Okanagan Region: http://a100.gov.bc.ca/pub/acat/public/viewReport.do?reportId=58628

Inventory of Streamflow in the South Coast and West Coast Regions: http://a100.gov.bc.ca/pub/acat/public/viewReport.do?reportId=53344

Inventory of Streamflow in the Cariboo Region: http://a100.gov.bc.ca/pub/acat/public/viewReport.do?reportId=52707

Inventory of Streamflow in the Omineca and Northeast Regions: http://a100.gov.bc.ca/pub/acat/public/viewReport.do?reportId=48460

Inventory of Streamflow in the Skeena Region: http://a100.gov.bc.ca/pub/acat/public/viewReport.do?reportId=40801

For More information please contact:

Ashfaque.Ahmed@gov.bc.ca

 

Flow Analysis Summary Statistics Tool for R- fasstr

fasstr, the Flow Analysis Summary Statistics Tool for R, is now published on CRAN.  fasstr, provides a variety of functions to clean and screen, daily discharge data; calculate and visualize summary statistics; and compute annual trending and volume frequency analyses. It features useful function arguments for filtering of and handling dates, customizing data and metrics, and the ability to pull daily data directly from the Water Survey of Canada hydrometric database. More information and instructions on installing fasstr in R can be found on CRAN (https://CRAN.R-project.org/package=fasstr) and Github (https://github.com/bcgov/fasstr).