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Dr. Samuel Sandoval SolisIn collaboration with:
Janet Escorcia, Jesus Loredo, Pablo Ortiz, Laura Garza, Shona Paterson, Luzma Nava, John (Jack) Schmidt and Todd Blythe
University of California, DavisDepartment of Land, Air and Water Resources
Balancing Human and Environmental Water Needs in the
Rio Grande - Rio Bravo
Natural HydrologyLobatos, COSan Marcial, NMPresidio, TX
Natural
Flow Regime
J F M A M J J A S O N D
Dis
char
ge (
m3/s
)
100
200
400
300
0
Rio ConchosRGB below Rio ConchosRGB below Rio ConchosRGB below DevilsRGB below Rio SaladoRGB at Gulf of Mexico
J F M A M J J A S O N D
Dis
char
ge (
m3/s
)200
400
800
600
0
Blythe and Schmidt (2018), Escorcia (2017) and Loredo (2018)
Water Infrastructure
Elep
han
t B
utt
e &
La
Bo
qu
illa
Falc
on A
mis
tad
Mexico
United States
Rio Grande/Bravo Basin
Ven
ust
ian
oC
arra
nza
El C
uch
illo
Mar
teR
. G
om
ez
Ab
iqu
iu Co
chit
i
Sandoval-Solis S.(2011). Integrated Water Resources Management for transboundary basins. Case of Study Rio Grande/Bravo Basin. Dissertation. University of Texas at Austin. Austin, TX.
Lobatos, COModern Hydrology
Natural
Flow Regime
Regulated
San Marcial, NMPresidio, TX
J F M A M J J A S O N D
Dis
char
ge (
m3/s
)
100
200
400
300
0
Rio ConchosRGB below Rio ConchosRGB below AmistadRGB below FalconRGB at the Gulf of Mexico
J F M A M J J A S O N D
Dis
char
ge (
m3/s
)100
200
400
300
0Dis
char
ge (
m3/s
)150
300
600
450
0Dis
char
ge (
m3/s
)200
400
800
600
0
Blythe and Schmidt (2018), Escorcia (2017) and Loredo (2018)
Opportunities: Conjunctive Use of SW & GW
Natural
Flow Regime
Regulated
In Lieu GW Banking
GW Banking
Baseline
Rio ConchosMeoqui Aquifer
LRGV – BRBChicot Aquifer
Opportunities: Environmental Flows
Natural
Flow Regime
Regulated
Rio Conchos
Big Bend
Salado
Mouth of the River 0
20
40
60
80
100
120
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
J F M A M J J A S O N D
Big Bend Reach
Rio Conchos
Forgotten Reach
What’s next?
Natural
Flow Regime
Water Demand • Water conservation
• Deficit irrigation & cropmanagement
• Environmental flows
• Buy back water right
Water Supply• Conjunctive use of SW, GW,
Recycle, Desal water
• Water Reuse
Storage• Reservoir re-operation
• Managed Aquifer Recharge
No Silver BulletsAll of the above
Regulated