Embed Size (px)
Citation preview
Cloud-Based
Geospatial
Technologies
for
Working Lands
Management
Tyler A. Erickson, Ph.D.
Google Earth Engine
Western Governors' Association
2018 Western Working Lands Forum
The Information Challenge
Old paradigm:
Move
data
to the
questions
Provider
#1
Provider
#2
Provider
#3
Provider
#4
Analysis Analysis Analysis Analysis
New paradigm:
Move
questions
to the
data!
Provider
#1
Provider
#2
Provider
#3
Provider
#4
Datasets DatasetsDatasets Datasets
Analysis
Colocate:
• Storage
• Algorithms
• Computation
Customized for
geospatial data.
Expose with APIs
Earth Engine
earthengine.google.com
What is Earth Engine
being used for?
● Building New Knowledge
● Raising Awareness
● Enabling Decision Making
What is Earth Engine
being used for?
● Building New Knowledge
● Raising Awareness
● Enabling Decision Making
What is Earth Engine
being used for?
● Building New Knowledge
● Raising Awareness
● Enabling Decision Making
Google Timelapse(global, zoomable video of the changing Earth)
Add video [las-vegas-4k-3x-10fps.mp4] here!
What is Earth Engine
being used for?
● Building New Knowledge
● Raising Awareness
● Enabling Decision Making
Image Products - Tenderfoot Fire (AZ), 2016Pre-fire Sentinel-2A imagery, May 2016 Post-fire Sentinel-2A imagery, June 2016
Pre-fire Sentinel-2A NDVI, May 2016 Post-fire Sentinel-2A NDVI, June 2016
dNDVI from pre- and post-fire
Sentinel 2A imagery
Black = burned area
Google Cloud Datasets Accessed
● Landsat 4/5/7/8 at-surface & at-satellite
reflectance
● MODIS at-surface reflectance
● METDATA Gridded Meteorological
● CFS Reanalysis
● CHIRPS Precipitation
ClimateEngine.orgDesert Research Institute
University of Idaho
Types of Variables Accessed● Precipitation, Temperature
● Humidity, Wind, Radiation
● Reference ET (ASCE-PM ETo)
● Surface Temperature
● Fire Indices
● Vegetation Indices
● Drought Indices
● Snow Cover
● True & False Color Images
ClimateEngine.orgDesert Research Institute
University of Idaho
Custom Date Ranges
Custom Calculations
Custom Statistics
ClimateEngine.orgDesert Research Institute
University of Idaho
Multiple-Region Comparisons Multiple-Year Comparisons
Intra-Year Comparisons
ClimateEngine.orgDesert Research Institute
University of Idaho
Regional Rangeland Drought AssessmentMODIS Difference from Average Vegetation Greenness
Growing Season - Apr 1 – Sept 16, 2015 Late Summer - Aug 16 – Sept 16, 2015
ClimateEngine.orgDesert Research Institute
University of Idaho
Takeaways
● Cloud-based technologies can make
large-scale monitoring tasks
possible!
● Cloud-based technologies can enable
efficient collaboration between
multiple organizations.
● Continuing to gather high quality
ground reference data is absolutely
necessary.
