Title: Legacies in Streams Using Natural and Introduced Tracers to Determine Origin and Fate of Stream Wate
1Legacies in Streams Using Natural and
Introduced Tracers to Determine Origin and Fate
of Stream Water
- Michael N. Gooseff
- Colorado School of Mines/Penn State University
2Collaborators
- Diane McKnight (CU)
- Roy Haggerty (OSU)
- Berry Lyons (the OSU)
- Breck Bowden (UVM)
- Jim McNamara (BSU)
- John Bradford (BSU)
- Brian McGlynn (MSU)
- Jeb Barrett (VT)
- Tina Takacs (UNM)
- Jay Jones (UAF)
- Jack Schmidt (USU)
- Charlie Vörösmarty (UNH)
- Bruce Peterson (MBL)
- Chuck Hopkinson (MBL)
- Bob Hall (U Wyo)
- Jen Tank (Notre Dame)
- Michelle Baker (USU)
- Steve Wondzell (USFS)
- USGS
- Ken Bencala
- Rob Runkel
- John Duff
- Graduate Students
- Rob Payn, PhD
- Randy Goetz, MS
Funding Source
3Watersheds as Integrated Systems
geomorphic template, soils, stream network
chemical
vegetation patterns
chemical weathering
Hydrology mediates the interactions among these
systems
4Streams as Integrators
5Streams are connected to watersheds
6Streams as Integrated Systems
fluvial geomorphology, substrate, sediment/water
discharge, setting
chemical
flora/fauna distributions
nutrient cycling
Hydrology and hydraulics mediate the interactions
among these systems
7How do we use Tracers in Streams?
- Decipher catchment flowpaths/operation -
i.e., hydrograph separation/EMMA - Dilution gaging
- Characterize transient storage
surface
recent surface
Stream discharge (mm/d)
newold subsurface
old subsurface
Maulé and Stein, 1990
8Natural Tracer Responses
Photos from Kevin McGuire
9Natural Tracer Responses
10How do we use Tracers in Streams?
- Decipher catchment flowpaths/operation -
i.e., hydrograph separation/EMMA - Dilution gaging
Tracer mass injection as a pulse
C(t)
Ctracer
Time
Mixing Length
11How do we use Tracers in Streams?
- Decipher catchment flowpaths/operation -
i.e., hydrograph separation/EMMA - Dilution gaging
- Characterize Transient Storage
12Streams Hyporheic Zones
Co, Ni, Zn, Mn retention (Fuller Harvey, 1998)
Alley et al., 2003
- Stream-adjacent subsurface flow location, through
which stream water exchanges.
13Exchange Driven by Head Gradients
Flow of water from hyporheic zone to the stream
was greatest at the downstream end of riffles.
Harvey Bencala, 1993
14Water and Solute Retention
- Stream tracer technique at reach scale
- Tracer BTC characterizes solute transport
processes
15Simulating Solute Transport I
Gooseff McGlynn, 2005
16Simulating Solute Transport II
Haggerty Reaves (2002), figure from Gooseff et
al. (2003)
17Ex. Restoring Stream Function
- In general
- restoring streams
- increasing channel complexity
- This should result in restored function of
retention - Example Provo River Restoration
- Reversing the impacts of diking and straightening
from 1960s
18Restoring Stream Function
- Middle Provo River, UT
- Qann 5.3 m3/s
- 3 channelized reaches
- 3 reconfigured reaches
- Channel morph.
- Stream tracer exps.
19Provo River Restoration, UT
before
after
http//www.mitigationcommission.gov/prrp/prrp.html
20Provo River Restoration, UT
before
after
http//www.mitigationcommission.gov/prrp/prrp.html
21Modified Channel Form
Riffle Pool
22Leads to Increase Retention?
23How do we use Tracers in Streams?
- Decipher catchment flowpaths/operation -
i.e., hydrograph separation/EMMA - Dilution gaging
- Characterize transient storage
- Assess lateral inflows distributed loads
24Identifying Sources of Metals
http//wwwrcamnl.wr.usgs.gov/wrdseminar/pastsemina
rsonvideo.htm
25Identifying Sources of Metals
26Identifying Sources of Metals
27Wheres the Problem?
- Zinc load Zn Q
- Distributed inflows contribute to Zn load
Kimball, USGS FS 245-96
28How do we use Tracers in Streams?
- Decipher catchment flowpaths/operation -
i.e., hydrograph separation/EMMA - Dilution gaging
- Characterize transient storage
- Assess lateral inflows distributed loads
- Characterize streamflow gains, losses, and
scaling of exchange dynamics
29Streams Are Not Isolated
One of these things is not like the other
30Stream-Catchment Interactions
- Instrumentation
- Watershed area 22.6 km2
- Tributary to the Smith River
- - 6 sub-basins
- - 7 USFS stream gauges
- 12 hillslope-riparian well transects
- LIDAR ALSM in fall 2005
2425 m
2090 m
31Stream-Watershed Connections
- Role of catchment structure on hydrologic and
solute response
Spring Park Cr.
Upper Tenderfoot Cr.
Stringer Cr.
Sun Cr.
Bubbling Cr.
32Stringer Creek, TCEF
ALSM high resolution topography data
33Its almost like being there
34Landscape Analysis
0 ha Log10 40 ha
Stringer Creek
Upslope accumulated area
Lower Tenderfoot Creek
35Differing hillslope-riparian sequences
(combinations of accumulated area and riparian
extent)
Based on 3m DEM
36Snowmelt Hydrograph
37Distributed Water Balance
- 2.6-km stream
- Divided into 26 consecutive100-m reaches
- Water balance measured with tracer dilution
gauging
38Measuring Reach Water BalanceRepeated Slugs
Method
QUP Gross Gain QDOWN Gross Loss
QUP
Gross hydrologic gain
QDOWN
Gross hydrologic loss
39Water balance Net change in Q compared to tracer
loss
July
40Concurrent gross hydrologic gain and loss
July
41Seasonal Trends
June
July
August
42Q along 2.6 km of Stringer Cr.
43Hydrology ? Hydraulics
44Scales of Exchange
Rhodamine WT Constant Rate Injection, 9 days
45Scales of Exchange
46Scales of Exchange
47Scales of Exchange
48Measuring Reach Water BalanceFlow path effects
on tracers
Transient hydrologic storage
Gross hydrologic gain
Gross hydrologic loss
49Summary
- Stream tracer application has a long history and
has significantly advanced our understanding of
hydrology - Despite its history, the future is bright for
stream tracer applications
50Future Research
1. How does N-retention (as a fn of hyporheic
exchange) scale through a stream network?
Recently funded by NSF - New method to partition
in-channel from hyporheic storage
51Future Research
2. Does acid mine drainage effectively clog
streambeds? Proposal to NSF assess N cycling
in AMD streams that have significant deposition
of ferrecrete.
52Future Research
3. How do thermokarsts (permafrost failures)
impact stream function?
53Watershed Functions
- Combined operation of watersheds, streams, and
wetlands - 6 Processes precipitation, infiltration,
percolation, interception, evapotranspiration,
and runoff - 5 Functions collection, storage, discharge,
provide reaction substrate, provide habitat
54Components Working Together
Fig. 3, Black, 1997
55Watershed Responses
Fig. 5, Black, 1997
56Watershed Responses
1. Attenuate inputs
Fig. 4, Black (1997)
57Stream Functions
- Functions
- Collection, retention, and discharge of water,
sediment, and solutes - Provide reaction substrate
- Provide habitat
- Streams operate in the context of in-channel and
out of channel controls
58Hyporheic Zone Characterization
- Connects streams to catchments
- Increases stream water/solute retention
- Underpins stream ecosystem function
- Denitrification (Gooseff et al., 2004)
- Co, Ni, Zn, Mn retention (Fuller Harvey, 1998)
USGS Circular 1139, 1998
59Water and Solute Retention
Storage zone can be hyporheic zone and/or channel
storage
Runkel, 1998
60Water balance Net change in Q compared to tracer
loss
June
61Water balanceHydrologic conditions ofSummer
2006
62Future Research
Is stream solute and water retention important
when channels are ice-covered?
Cardenas Gooseff, WRR in review
63Nitrogen Cycling in Antarctic Hyporheic Zones
Maurice et al. (2002)
64Denitrification in Green Creek?
- Denitrification
- NO-3 NO-2 N2O N2 (reduction)
nitrate
nitrite
nitrous oxide
dinitrogen
Algal mats remove NO3 by assimilation and
hyporheic microbes remove NO3 via denitrification
65Study Approach
- Stream tracer experiment
- add steady injection of NO3 and conservative
tracer (Cl) - simulate NO3 loss in-stream and in-hyporheic
injection
Sample 1
Sample 2
Sample 4
Sample 3
66Hyporheic NO2 Production?
Transport Limited!
Gooseff et al. (2004)
67Alternative Denitrification also occurring in
algal mats
Gooseff et al. (2004)
68Green Creek Stream Results
3
14
4
0
In-channel control on retention
Gooseff et al. (2004)