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CA State Dominguez Hills
Lynn Fenstermaker, PhD
Women in Science Guest Speaker Series
Monitoring Climate Variability And Impact In NV: What's A PA Country Gal Doing In The Desert?
Preview
1) How did a PA Country Gal become a science geek and end up in the desert? 2) What is the Desert Research Institute?
3) Some of my research projects:
- Monitoring Climate Variability - Impact of Climate on Basin Scale ET - One slide about a “hot” new NV research
1) Early childhood 4-H projects on: geology, fossils, insects and soil conservation
How Did I Become a Science Geek?
2) The Undersea World of Jacques Cousteau
1st Step West – PSU Soil Judging (Soil Ode to Dean Hay)
Estimating Soil Texture at Practice Pit
All Female (almost) PSU Team Competing at Nat’l Soil Judging Contest in NE
2nd Step West: M.S. Thesis Research in Utah
Diurnal Reflectance and Emittance Characteristics of a Desert Surface
The Move from Rural PA to Urban Desert (Courtesy of Lockheed and Google Earth)
Northeastern PA
Southern NV
Jack of All Trades
B.S. Environmental Resource Management, Soil Science Emphasis Penn State University M.S. Agronomy Remote Sensing Emphasis Penn State University Ph.D. Biological Sciences Physiological Ecology Emphasis University of NV, Las Vegas
What is the Desert Research Institute? Nevada System of Higher Education’s
Global Environment Research Institution
• Foster and conduct fundamental scientific, economic, social or educational investigations and applied research for industry, governmental or private agencies or individuals.
• Encourage and foster a desire in students and faculty to conduct research.
• Discover and develop talent for conducting research.
• Acquire and disseminate knowledge related to the projects undertaken.
• And to promote all research for higher education and State of Nevada
Founded in 1959, the primary purposes of the Institute are to:
• ~559 employees with ~155 research faculty
• Non-tenure / soft-money structure:
• Faculty are not tenured and generate their own salaries (no state-funded positions)
• Faculty bring ~$40M into Nevada’s economy!
• At any given time, DRI conducts about 300 research projects worldwide.
• Over 60 specialized labs & research facilities.
• DRI invests ~ $1.6M annually in non-state dollars for support of UNR and UNLV graduate students.
Entrepreneurial Culture and World Class Facilities
Research Structure Research Divisions:
• Atmospheric Sciences
• Earth and Ecosystem Sciences
• Hydrologic Sciences
Integrated Science Centers:
• Center for Advanced Visualization, Computation, and Modeling (CAVCaM)
• Rogers Center for Environmental Remediation and Monitoring (CERM)
• Watersheds and Environmental Sustainability (CWES)
• Clean Technologies and Renewable Energy Center (CTREC)
NevCAN: Measuring Climate and Environmental Response in the Great Basin
(Nevada Climate-ecohydrological Assessment Network)
Lynn Fenstermaker (DRI) Director Scotty Strachan (UNR) Operations Coordinator
Science Board: J. Arnone (DRI), F. Biondi (UNR), D. Devitt (UNLV), L. Fenstermaker (DRI), R. Jasoni (DRI), B. Lyles (DRI), G. McCurdy (DRI), S. Mensing (UNR), L. Saito (UNR), S. Strachan
NevCAN Goal
Develop standardized infrastructure with real time data collection to: 1) measure and analyze effects of climate variability and
change on ecosystem and disturbance regimes
2) better quantify and model changes in water balance and
supply under climate change
NevCAN Snake Range Transect
Sagebrush West
Subalpine East Sagebrush East
Montane West Subalpine West
Salt Desert Shrub West
Pinyon Juniper West
Great Basin National Park
False Color Infrared Landsat TM May 31, 2007
Salt Desert Shrub East
NevCAN Transect Locations
Snake Range West Transect
NevCAN Snake Range Stations
Elevation = 1790 m; Landholder = Long Now Foundation Artemisia tridentata, Sarcobatus vermiculatus
Elevation = 1757 m; Landholder = BLM Sarcobatus vermiculatus, Artemisia tridentata
Salt Desert Shrub West Sagebrush West
NevCAN Snake Range Stations Pinyon Juniper West Montane West
Elevation = 2810 m; Landholder = Long Now Foundation Abies concolor, Pinus flexilis
Elevation: 2200 m; Landholder: BLM Pinus monophylla, Juniperus osteosperma
NevCAN Snake Range Stations Subalpine West Subalpine East
Elevation: 3355 m; Landholder: Long Now Foundation Pinus longaeva, Pinus flexilis
Elevation: 3070 m; Landholder: GBNP Picea engelmannii, Populus tremuloides
NevCAN Snake Range Stations Sagebrush East Salt Desert Shrub East
Elevation:1560 m, Landholder: BLM, webcam view Sarcobatus vermiculatus, Atriplex confertifolia
Elevation: 1560 m; Landholder: NV Land Trust; Artemisia tridentata, Bromus tectorum
NevCAN Sheep Range Transect
Mojave Desert Shrub
Blackbrush Pinyon Juniper
Montane
Subalpine (NRCS SCAN)
Las Vegas False Color Infrared Landsat TM
May 15, 2007
Sheep Range Transect
All sites on U.S. Fish and Wildlife Service property
Elevation: 1670 m; Landholder: US FWS Yucca brevifolia, Atriplex canescens, Coleogyne ramosissima
NevCAN Sheep Range Stations Cont. Mojave Desert Shrub Blackbrush
Elevation: 900 m; Landholder: US FWS Larrea tridentata, Ambrosia dumosa
NevCAN Sheep Range Stations Cont. Pinyon Juniper Montane
Elevation: 2065 m; Landholder: US FWS Pinus monophylla, Purshia stansburiana
Elevation: 2320 m; Landholder: US FWS Pinus ponderosa, Juniperus osteosperma
Site Instrumentation Basic Meteorological Sensors: -Net radiation -PAR -Air Temperature -Relative Humidity -Wind Speed/Direction -Precipitation (Geonor, tipping bucket and ultrasonic snow depth) Soil Sensors: -Soil Temp at 5 depths -Soil Moisture at 5 depths -Soil Matric Potential Plant Sensors: -Sap flow -Point Dendrometers Other: -Surface Runoff -Webcam
Air Temperature
Soil moisture
Basic Sensors
Solar Radiation
CS300 (pyranometer)
Maximum, Minimum, Average, Standard Deviation LI190 (PAR)
Average CNR1 (net radiation: long-/short-wave incoming/outgoing radiation) Average individual components Sensor Body Temperature
Air
HMP50 (relative humidity and air temp) Maximum, Minimum, Average CS106 (barometric pressure)
Average RM Young 05103 (wind speed – direction)
Maximum, Minimum, Average, Vector, Vector Direction, Standard Deviation,
Thermocouples
Air Temperature: 2 and 10 meters Maximum, Minimum, Average Soil Temperature: 2.5, 5, 10, 20, and 50 cm Maximum, Minimum, Average
Soil
CS650 (soil water content reflectometer)
Average, Sensor Temperature Conductivity, Salinity
CS229 (soil water matric potential Ψ)
-10 to 2500 kPa
DPHP (dual probe heat pulse; East30Sensors)
(soil thermal conductivity, diffusivity, and specific heat)
Precipitation
TE525 (Tipping bucket)
Event, Accumulation, Sensor Temperature Geonor T200 (precip weighed by vibrating wire)
Frequency, Accumulation Judd (ultrasonic depth sensor – for snow)
Average, Maximum, Minimum, Standard Deviation, Sensor Temperature
Vegetation Sensors
NDVI sensor at Snake Eddy Covariance site
Sap flow sensor at Snake Pinyon-Juniper West
Photo: B. Johnson
Point dendrometer at Snake Subalpine East
Runoff Collectors
Canon PTZ Internet Camera Monitoring of weather, phenology, show melt and sensor conditions
Oct 1, 2011 Mar 19, 2012 May 6, 2012
Snake Subalpine West seasonal changes above Sheep Pinyon Juniper hourly differences of a nearby wildfire
Sept 9, 2011, 12:00 Sept 9, 2011, 16:00
NRCS Soil Description and Characterization
Transect Zone Soil Taxonomy Altitude
(m)
Snake
Salt Desert West Fine-loamy, mixed superactive mesic
Xeric Calciargids 1756
Sagebrush West Loamy-skeletal, mixed superactive,
mesic Xeric Calciargids 1790
Pinyon-Juniper West
Loamy-Skeletal, superactive mesic shallow Cambidic Durixerolls
2200
Montane West Fine, smectitic Xerollic Haplocryalfs 2810
Subalpine West Loamy-skeletal, mixed, superactive
Calcic Pachic Argicryolls 3355
Subalpine East Loamy-skeletal, mixed, superactive
Xeric Haplocryolls 3070
Sagebrush East Fine-loamy, mixed, superactive,
mesic Xeric Calciargids 1835
Salt Desert East Fine, smectitic, mesic Typic
Calciargids 1560
Sheep
Mojave Desert Shrub
Loamy-skeletal, carbonatic, thermic Typic Torriorthents
900
Blackbrush Loamy-skeletal, carbonatic, mesic,
shallow Calcic Petrocalcids 1670
Pinyon-Juniper Loamy-skeletal, mixed, superactive,
mesic, Calcic Argiustoll 2065
Montane Clayey-skeletal, mixed, super, mesic, Aridic, Lithic Argiustoll
2320
EARLY RESULTS Snake Range Transect Precipitation
0
20
40
60
80
100
120
Tota
l Pre
cipi
tatio
n (m
m)
Monthly Precipitation HY 2011-2012 Sagebrush West Pinyon-Juniper West Montane WestSubalpine West Subalpine East Sagebrush EastSalt Desert East
Snake Range Transect Precipitation
NevCAN Annual Precipitation
Snake Range Transect Air Temperature East – West Comparison, Avg, Min and Max
-40
-30
-20
-10
0
10
20
30
40
50Ju
n-10
Aug-
10
Oct
-10
Dec-
10
Feb-
11
Apr-
11
Jun-
11
Aug-
11
Oct
-11
Dec-
11
Feb-
12
Apr-
12
Jun-
12
Aug-
12
Oct
-12
Dec-
12
Air T
empe
ratu
re D
egre
e C
Sagebrush WestSagebrush East
Snow Cover
Data Example: Sapflow vs Air Temperature: Snake Montane West: Tree 1, White Fir
5/8/2011 4:00 pm
5/8/2011 5:00 pm
5/9/2011 10:00 am
5/11/2011 2:00 pm
5/11/2011 6:00 pm
Data from Britt Johnson and Jay Arnone
NevCAN: Downscaling Climate Model Data Mean Temperature: from GCM ~250km to 4km
John Mejia and KC King
Snow Depth Monitoring and Other Imagery
NASA JPL: Airborne Snow Observatory (lidar and spectral imaging) plans regular flights over the Snake Range this winter. They have previously acquired snow-free images DOE Remote Sensing Lab: Plans to test airborne radiation sensor for snow depth/SWE monitoring. SNWA: 6” aerial photography of entire region acquired in 2006.
Snake Subalpine West
For More Info, Data and Webcam Access
Contact: [email protected]; 702-862-5412 Information at NV Climate Change Portal (NCCP) http://sensor.nevada.edu Corrected Data available at WRCC : Snake Transect: http://www.wrcc.dri.edu/GBtransect/ Sheep Transect: http://www.wrcc.dri.edu/SRtransect/ Access Webcams at: http://134.197.38.180/
Assessing Climate Variability and Its Impact on Basin Wide ET and Vegetation
Lynn Fenstermaker1, Dale Devitt2 , Brian Bird2, Jay Arnone1
Richard Jasoni1and Jessica Larsen1
Desert Research Institute1 and University of Nevada Las Vegas2
Funded by the Southern Nevada Water Authority
Study Site
• Spring Valley in east central NV (100 km by 15 km)
• ET Estimation: empirical relationship between eddy covariance data and average growing season NDVI
• 5 sites in native shrub (greasewood and big sage), 1 mixed grass/shrub site and 2 irrigated agriculture
1
2
2b
3
4
5, 6
7
Spring Valley 1 (27% cover)
Spring Valley 2 (100% cover)
Spring Valley 2b (100% cover)
Spring Valley 3 (32% cover)
Spring Valley 4 (100% cover)
Spring Valley 5 (85% cover)
Spring Valley 6 (76% cover)
Spring Valley 7 (19% cover)
Methods • Landsat TM 5 scenes from the growing season
were calibrated, atmospherically corrected and normalized
• NDVI was calculated for each image date, cloud and shadow areas were replaced and average growing season NDVI was calculated
• Empirical relationship between annual tower ET and average growing season NDVI was determined for tower footprint areas.
• ET images were calculated and footprint pixels were compared to tower ET
Impact of Precipitation on Vegetation in Phreatophytic Zone
Graphic Footprint Representation: Weighted footprint based on wind speed and direction; Hsieh et al. (2000)
Footprint diameters: 1000m to 4000m
Empirical Relationship Between ET and Avg NDVI
Annual Tower ET (mm)
0 200 400 600 800 1000 1200 1400
Foot
prin
t Wei
ghte
d Av
erag
e N
DVI
-0.2
0.0
0.2
0.4
0.6
0.8
1.0Snv1SnV2SV1SV2bSV3SV4SV5SV6SV7WRV2
(n = 30, r2 = 0.954)
Accuracy Assessment Results
This means that in the worst case ET estimation accuracy is 68 to 70% and in the best case 93%.
Assessing Climate Change Treatment Effects with a Radio Control Helicopter Multispectral Platform
Dr. Lynn Fenstermaker, Desert Research Institute ▪ Eric Knight, University of Nevada, Las Vegas
TreatmentI = irrigated, NI = not irrigated
0 kg ha-1 Nitrogen, 10 kg ha-1 Nitrogen, 40 kg ha-1 NitrogenD = disturbed, ND = not disturbed
I-0-DI-0-ND
I-10-DI-10-ND
I-40-DI-40-ND
NI-0-DNI-0-ND
NI-10-D
NI-10-NDNI-40-D
NI-40-ND%
Gre
en C
over
0
5
10
15
20
25
UAV Platform: Class I RC helicopter, 55.7” length
Sensor Package: Tetracam multispectral
camera simulating green, red and IR Landsat bands; altimeter
Climate Treatment Effects on Plant Cover
Multispectral CIR photo Standard color digital photo
Couldn’t Resist One More Soil Slide: Glossic Horizon in Arkansas Fragipan Soil
Hidden Beauty of the Natural World
Thank You and Any Questions?
Science Can Get Tangled At TImes But Takes You to Great Places