Canadian Dam Association Bulletin - Summer 2018 - 20

catchment area of several Canadian,
United States, and foreign rivers.
The Francou-Rodier classification
method is another type of simple flood
envelope curve procedure for analyzing the peak floods that have historically been observed in a region. The
method was first proposed by Francou
and Rodier (1967) in a French language
publication. Nalder (1997) presents a
description of the methodology in the
English language.

5. PROBABLE MAXIMUM
PRECIPITATION ESTIMATION

area, sometimes hundreds of kilometers up-gradient (WMO, 2009).
Probable Maximum Precipitation
Micovic et al. (2015) discuss the
(PMP) is generally estimated using
uncertainty involved in PMP estimeteorological analysis or statistical
mates and propose a clear method of
presenting the uncertainty. The paper
methods. Statistical methods typstresses that PMP and PMF should be
ically rely on data collected in the
reported as a range of values and not a
catchment under study or an area
single best estimate and that meteordetermined to be in the same meteoroologists must apply significant profeslogical region. Storm or meteorological
analysis typically rely more on data
sional judgement due to the limited
collected upwind of the catchment
availability of data. The same is true
with respect to reporting an IDF. It
should be reported as a range of values
and the methods used to estimate the
range should be fully described.
WMO (2009) indicates the following:
* The accuracy, or reliability, of an estimate [PMP] fundamentally depends
on the amount and quality of data
available and the depth of analysis.
* PMP estimates must be considered
to be approximations.
* Procedures for estimating PMP cannot be standardized.
* It would be impossible at this time
to prepare a manual covering all
the problems that could possibly be
encountered.
Gates, Flaps, Stop Logs, Screens, Trash Rack Cleaning Systems
WMO (2009) contains PMP estimation examples from the US, Australia,
China and India and indicate "The
Kuenz America Inc. | Raleigh, NC 27617
examples presented are not intended
sales@kuenz.com | www.kuenz.com
for direct application in deriving PMP
estimates. They aim to explain how
897380_Kuenz.indd 1
12/11/17 11:03 PMto estimate PMP in different cases,
including watersheds of various sizes
as well as different topographies, climates and quality of data." The report
indicates that PMP estimates should
always be compared with observed
record rainfall values and provide an
appendix with records from around
the world.
Micovic et al. (2015) indicate that
statistical methods of estimating PMP
are seldom used for final design and
rather meteorological analysis is the
preferred method. Hogg and Carr
(1985) indicate that "Statistical procedures for estimating PMP are frequently used for small basins (1000 km2
or less) or for making quick estimates.
They can also be used as a check on
PMP estimates obtained using more
rigorous methods."

Hydro-Mechanical Equipment

20
878755_Oiles.indd
1

View past issues of the7/31/17
CDA Bulletin
8:37 PM online at www.naylornetwork.com/cda‑nxt/


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Table of Contents for the Digital Edition of Canadian Dam Association Bulletin - Summer 2018

Board of Directors
President’s Message
Inflow Design Flood Estimation for Reservoirs in British Columbia and Yukon Territory
ICOLD 2018: Canadian Expertise on the World Stage
ICOLD Corner
CDA Will Be Meeting in Quebec City!
CDA Directors & Officers – Call for Nominations
2018 CDA Awards – Call for Nominations
Notice of Annual General Meeting
Time to Renew Your Membership
Clean Energy B.C.'s Operational Excellence Award for Corra Linn Dam
Buyers’ Guide and Trade List
Canadian Dam Association Bulletin - Summer 2018 - Intro
Canadian Dam Association Bulletin - Summer 2018 - cover1
Canadian Dam Association Bulletin - Summer 2018 - cover2
Canadian Dam Association Bulletin - Summer 2018 - 3
Canadian Dam Association Bulletin - Summer 2018 - 4
Canadian Dam Association Bulletin - Summer 2018 - 5
Canadian Dam Association Bulletin - Summer 2018 - 6
Canadian Dam Association Bulletin - Summer 2018 - Board of Directors
Canadian Dam Association Bulletin - Summer 2018 - President’s Message
Canadian Dam Association Bulletin - Summer 2018 - 9
Canadian Dam Association Bulletin - Summer 2018 - Inflow Design Flood Estimation for Reservoirs in British Columbia and Yukon Territory
Canadian Dam Association Bulletin - Summer 2018 - 11
Canadian Dam Association Bulletin - Summer 2018 - 12
Canadian Dam Association Bulletin - Summer 2018 - 13
Canadian Dam Association Bulletin - Summer 2018 - 14
Canadian Dam Association Bulletin - Summer 2018 - 15
Canadian Dam Association Bulletin - Summer 2018 - 16
Canadian Dam Association Bulletin - Summer 2018 - 17
Canadian Dam Association Bulletin - Summer 2018 - 18
Canadian Dam Association Bulletin - Summer 2018 - 19
Canadian Dam Association Bulletin - Summer 2018 - 20
Canadian Dam Association Bulletin - Summer 2018 - 21
Canadian Dam Association Bulletin - Summer 2018 - 22
Canadian Dam Association Bulletin - Summer 2018 - 23
Canadian Dam Association Bulletin - Summer 2018 - 24
Canadian Dam Association Bulletin - Summer 2018 - 25
Canadian Dam Association Bulletin - Summer 2018 - 26
Canadian Dam Association Bulletin - Summer 2018 - 27
Canadian Dam Association Bulletin - Summer 2018 - ICOLD 2018: Canadian Expertise on the World Stage
Canadian Dam Association Bulletin - Summer 2018 - ICOLD Corner
Canadian Dam Association Bulletin - Summer 2018 - CDA Will Be Meeting in Quebec City!
Canadian Dam Association Bulletin - Summer 2018 - 31
Canadian Dam Association Bulletin - Summer 2018 - 32
Canadian Dam Association Bulletin - Summer 2018 - 33
Canadian Dam Association Bulletin - Summer 2018 - CDA Directors & Officers – Call for Nominations
Canadian Dam Association Bulletin - Summer 2018 - 2018 CDA Awards – Call for Nominations
Canadian Dam Association Bulletin - Summer 2018 - Notice of Annual General Meeting
Canadian Dam Association Bulletin - Summer 2018 - Time to Renew Your Membership
Canadian Dam Association Bulletin - Summer 2018 - 38
Canadian Dam Association Bulletin - Summer 2018 - Clean Energy B.C.'s Operational Excellence Award for Corra Linn Dam
Canadian Dam Association Bulletin - Summer 2018 - 40
Canadian Dam Association Bulletin - Summer 2018 - Buyers’ Guide and Trade List
Canadian Dam Association Bulletin - Summer 2018 - 42
Canadian Dam Association Bulletin - Summer 2018 - cover3
Canadian Dam Association Bulletin - Summer 2018 - cover4
Canadian Dam Association Bulletin - Summer 2018 - outsert1
Canadian Dam Association Bulletin - Summer 2018 - outsert2
Canadian Dam Association Bulletin - Summer 2018 - outsert3
Canadian Dam Association Bulletin - Summer 2018 - outsert4
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