David Lagomasino1,2,* , Rene Price1,2, Petya Campbell3 & Dean Whitman1
1FIU: Department of Earth and Environment, Miami, FL
2 FIU: Southeast Environmental Research Center, Miami, FL 3NASA: GSFC, Code 614.4, Greenbelt, MD
9th Annual INTECOL Conference
June 5, 2012
1
FCE III LTER Goals:
Water : How do water
management decisions interact
with climate change to determine
freshwater distribution?
Carbon: How does the balance
of fresh and marine water supplies
regulate C uptake, storage, and
fluxes by influencing water
residence time, nutrient
availability, and salinity?
Legacies: How does historic
variability in the relative supply of
fresh and marine water modify
ecosystem sensitivity to further
change?
Scenarios: What are alternative
socio-ecological futures for South
Florida under contrasting climate
change and water management
scenarios?
B
P
T
O Carbon Cycle
Global
Climate
Change
Global
Socioeconomic
Change
Everglades Coastal Gradient FR
ES
H W
AT
ER
SU
PP
LY
Regional Climate
Modulation
Regional Water
Management and
Land Use
South Florida Urban Gradient
Resource Demand, Use, Stewardship and
Management Decisions
1
MA
RIN
E W
AT
ER
SU
PP
LY
2
1
1
Multi-Scaled Socio-Ecology of the Everglades FCE III Conceptual Framework
4 Past Future
Geochemistry
Primary
Production
Consumers
Organic
Matter
Carbon
Cycle
3 Present
LOCAL RESPONSES
EXTERNAL DRIVERS 1
2
3
4
Socio-ecological feedbacks
Can water quality be estimated and monitored using remote
sensing?
Provide spatial estimates of water quality across various mangrove
communities and identify seasonal trends using electro-magnetic spectral
signatures
3
Water chemistry estimated from
leaf spectra
Leaf-level and satellite-level
data show comparable results
Restoration
Sea-level Rise
Salt water Intrusion
Rain ≈ ET
~60-80% during wet season
(May-Oct)
(Price et al., 2008) 4
SITE LAYOUT
Red, black and white
mangroves (tall)
Bedrock groundwater
Pore water at 85 cm and
20cm depth
HYDROLOGY/ METEOROLOGY
Eddy-covariance tower (SRS6)
SW/GW level
~145 m
GW wells
5
1
2
3
HYDROLOGY/METEOROLOGY
Weather station (TsPh7)
SW/GW level
SITE LAYOUT
Red mangroves (dwarf)
Top of bedrock GW wells
Pore water at 20cm depth
TSPh7b
A1
A4
Canoe
4m
TSPh6b C1
C3 Dock
19m
Courtesy of Xavier Zapata
6
seaward
7
Based on vegetation structure
Δ environment ≈Δ structure ≈Δ spectra
Used to calculate spectral vegetation
indices
www.missionscience.nasa.gov
EVI
[Total Nitrogen]
REIP slope
[Ca2+]
RFf_r
[Cl-1]
RE3
[SO42-]
D705/722
[Total Phosphorus]
Band combinations based on various wavelengths of the
measured EM spectra
Related to changes in the chemical and structural features
Maximize sensitivity & minimize noise
8
SVI used in study
Leaf-scale
9
Canopy-scale Regional-scale
Site/local hydrology
-Water quality
-Water availability
-Field spectra
Regional hydrology
-Water quality
-Water availability
-Satellite spectra
upscaling
groundtruthing
Δ spectra
attributed to seasonal variability in water chemistry
> variability at SRS4
10
Cl1
- (m
g L
-1)
SO
42- (m
g L
-1)
Ca
2+ (
mg
L-1
)
SRS4 SRS6
11
Significant correlations between SVIs and ion and nutrient
concentrations
Ca2
+ @
20
cm (
mg
L-1)
SO4
2- @
20
cm (
mg
L-1)
Cl-
@ G
W (
mg
L-1)
Bands 1,2,3
Bands 4,3,2
Bands 5,4,2
12
Landsat 5TM
30m x30m grid
6 bands + 1 thermal
14 day repeat
15 images from
1993-2009
Decrease in NIR (band4) with increase in [Cl-]
Strong correlations (p<0.05) with SRS 5&6 sites Su
rfac
e w
ate
r C
l- (m
g/L)
Band 4 Reflectance (%)
Legend
Cl- (mg/L)
0
2000
4000
6000
8000
1000
0
1200
0
1400
0
1600
0
1800
0
2000
0
11/20/2003
DOY=323
11/17/2007
DOY=321
05/04/2006
DOY=123
Seasonal [Cl-] variations
Low [Cl-] in wet season
High [Cl-] in dry season
Downstream gradient
14 14
05/06/1995
DOY=125
04/01/1994
DOY=90
01/03/1997
DOY=3
02/18/1996
DOY=48
03/29/1993
DOY=87
15
Surf
ace
wat
er
Cl- (
mg
/L)
]
Surf
ace
wat
er
Cl- (
mg
/L)
]
?
Leaf-level and satellite-level data
show comparable results
Seasonal spectral trends associated
with changes in water chemistry
16
Additional data to improve model
Decadal changes through times Landsat legacy (1970s-2000s)
Use stressed conditions to better constrain satellite ET estimates
Extrapolate to the Caribbean and elsewhere
Drs. Rene Price, Petya Cambell, Dean Whitman, Assefa Melesse, Steven
Oberbauer, & Fernando Miralles
ASD inc.
Goetz Instrumentation Award (2011)
FCE LTER
NASA WaterSCAPES
Everglades National Park
USGS
Estefania Sandoval, Pamela Sullivan, Danielle Ogurcak, Emanuelle
Feliciano, Stephanie Long, Nicole Neira, & Rafael Travieso
17
18
Top Related