Kelly Mott Lacroix Joanna B. Nadeau Brittany Choate Sharon B ...

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Kelly Mott Lacroix Joanna B. Nadeau Brittany Choate Sharon B ...

Kelly Mott Lacroix

Joanna B. Nadeau

Brittany Choate

Sharon B. Megdal


What to expect….

Human and environmental demands for water

What is environmental demand anyway?

What we know (and don’t know) about

environmental water demands in Arizona

And a little bit about how the known, knowns are known

What can we do with this information?

Or just So What?

Where are we going with all of this?

What is a roadmap?

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Streamflow Data, Current

Flows

Quan8fied Flow

or Environmental Demands?

Current Quantified Flow

Flow that currently

supports the

environment

Annual baseflow

Groundwater underflow

Riparian extent

Average annual evapo-­transpiration

(ET)

Median

Flows

12.2 maf

Environmental Demands

The amount of water

Minimum

Flows

1.2 maf

Maximum

40.8 maf

needed in a watercourse to

sustain a healthy ecosystem

Magnitude (how much)

Frequency (how often)

Duration (how long)

Timing (how predictable)

Rate of Change (how variable)

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STREAM

SEASONAL AND ANNUAL FLOWS OF MAJOR STREAMS

USGS STATION

AVERAGE SEASONAL FLOW

(% of annual flow)

ANNUAL FLOW/YEAR

(in acre-­‐feet)

No. Name Winter Spring Summer Fall Min. Median Max.

YEARS

OF

RECORD

Gila River 9474000 at Kelvin 31 23 32 14

56,398

(1961)

324,351 2,375,969

(1993)

93

Gila River 9448500

at head of

Safford

Valley near

Solomon

41 18 20 22

48,953

(1956)

273,008 1,559,116

(1993)

77

San

Francisco

River

9444500 at CliBon 41 20 16 22

Blue River 9444200 near CliBon 39 22 14 25

Eagle Creek 9447000

San Carlos

River

above

pumping

plant near

Morenci

49 14 15 22

9468500 near Peridot 61 5 13 21

30,415

(1951)

9,487

(2002)

12,311

(1953)

4,070

(2002)

91,606

38,091

34,398

28,677

678,755

(1915)

176,695

(1983)

405,530

(1993)

296,181

(1993)

79

30

58

73

Sources: USGS 2008a & 2005b

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Current Quan8fied Flows

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Annual

Baseflow

Average Annual

Evapotranspira8on

acre-­‐feet per year

Current Flow

Suppor8ng the

Environment

Agua Fria River 1,811 27,788 -­‐ 34,454 299,599 -­‐ 36,265

Aravaipa Creek 11,591 7,793 -­‐ 16,692 19,384 -­‐ 28,283

Arivaca Creek 304 2,136 – 3,188 2,440 – 3,492

Bill Williams River 5,796 79,511 – 126,244 85,307 – 132,040

Cienega Creek 797 8,022 – 8,299 8,819 – 9,096

Gila River 127,503 106,953 -­‐ 151,568 234,456 -­‐ 279,071

Salt River 236,170 128,986 -­‐ 136,970 365,156 -­‐ 373,140

Upper San Pedro River 9,417 22,890 -­‐ 49,259 32,307 – 58,676

Lower San Pedro River 3,622 59,183 -­‐ 62,087 62,805 -­‐ 65,709

Santa Cruz River 11,591 12,427 – 27,214 24,018 – 38,805

Tonto Creek 15,213 21,082 – 21,462 36,295 -­‐ 36,675

Verde River 194,151 115,157 – 146,181 309,308 – 340,332


Flow

Components

Studied

Timing of

Flow

Rate of

Change

River Name*

Magnitude Dura8on Frequency

(% Studied)

Agua Fria River

S

(22%)

NS NS NS NS

Arivaca Creek S S NS NS S

Aravaipa Creek S S NS NS S

Babocomari River S NS NS S NS

Bill Williams River S S S S S

Cienega Creek S

S

S S

S

(88%)

(88%) (88%)

Cherry Creek S NS NS NS NS

Colorado River S S

S

(67%)

S S

Dragoon Wash S NS NS NS NS

Eagle Creek S NS NS NS NS

E. Verde River S NS NS S NS

Gila River

S

S S

NS

(45%)

(10%) (23%)

NS

Hassayampa River S S S S S

Li_le Colorado River S S S S S

Oak Creek S S S S S

Pinto Creek S S S NS NS

Rincon Creek S

S

S

S

(61%)

(61%)

S

Salt River S NS NS NS NS

San Francisco River S NS NS NS NS

San Pedro River S S S S S

Santa Cruz River S S NS NS S

Sonoita Creek S NS S NS S

Sycamore Creek S S S S NS

Tanque Verde Wash S NS S NS S

Tres Alamos Wash S NS NS NS NS

Verde River S S S S S

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Informa8on from Other Studies

Evapotranspira8on

in feet per year

Acre-­‐feet per

year

Mesquite forest 1.2 -­‐ 3.4 -­‐-­‐

Saltcedar 1.2 -­‐ 2.4 -­‐-­‐

CoZonwood-­‐Willow 1.3 -­‐ 6.6 -­‐-­‐

Desert Sucker -­‐-­‐ 3,549 -­‐ 21,660

Longfin Dace -­‐-­‐ 2,100 -­‐ 21,660

Sonora Sucker -­‐-­‐ 18,111 -­‐ 36,222

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How you can apply this informa8on

1. Determine how environmental flows interact

with other demand sectors

2. Identify factors putting environmental flows at

risk

3. Identify studies needed to address key

information gaps about environmental flows

4. Determine local priorities for ecosystems

5. Develop scenario analyses for water planning

that incorporate the environment

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Ongoing Ac8vi8es

Completing and updating database

of environmental water demand

data

Providing technical support

What are the options for incorporating

the environment?

What are your priorities for water in

the environment?

What additional information do we

need to get from here to there?

How do you think we could use this

information?

Safford Agriculture Photo

credit: ADWR 2009

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Next Steps

Creating a “roadmap” for

considering environmental

water demands:

Common water management

objectives

Strategies to meet those objectives

Opportunities (avenues) for

considering environment in water

decision making

Is there room for the

environment at the table and

if so where and how?

Gila River at Kelvin Gauge

Photo credit: ADWR 2009

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Contact Us

Learn more:

wrrc.arizona.edu

Share your thoughts with us…

Kelly Mott Lacroix

klacroix@email.arizona.edu

Dr. Sharon B. Megdal, Director

smegdal@cals.arizona.edu

Joanna B. Nadeau

jnadeau@cals.arizona.edu

University of Arizona

Water Resources Research Center

520-­‐621-­‐9591

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