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The 2016 Google Earth Engine User Summit: Turning pixels into insights
Monday, September 19, 2016
Posted by Chris Herwig, Program Manager, Google Earth Engine
"
We are trying new methods [of flood modeling] in Earth Engine based on machine learning techniques which we think are cheaper, more scalable, and could exponentially drive down the cost of flood mapping and make it accessible to everyone."
-Beth Tellman, Arizona State University and
Cloud to Street
Recently, Google headquarters hosted the
Google Earth Engine User Summit 2016
, a three-day hands-on technical workshop for scientists and students interested in using Google Earth Engine for planetary-scale cloud-based geospatial analysis. Earth Engine combines a multi-petabyte catalog of satellite imagery and geospatial datasets with a simple, yet powerful API backed by Google's cloud, which scientists and researchers use to detect, measure, and predict changes to the Earth's surface.
Earth Engine founder Rebecca Moore kicking off the first day of the summit
Summit attendees could choose among
twenty-five hands-on workshops
over the course of the three day summit, most generated for the summit specifically, giving attendees an exclusive introduction to the latest features in our platform. The sessions covered a wide range of topics and Earth Engine experience levels, from image classifiers and classifications, time series analysis, building custom web applications, all the way to arrays, matrices, and linear algebra in Earth Engine.
Terra Bella
Product Manager, Kristi Bohl, taught a
session on using SkySat imagery
, like the image above over Sydney, Australia, for change detection. Workshop attendees also learned how to take advantage of the deep temporal stack the SkySat archive offers for change-over-time analyses.
Cross-correlation between Landsat 8 NDVI and the sum of CHIRPS precipitation. Red is high cross-correlation and blue is low. The gap in data is because CHIRPS is masked over water.
Nick Clinton, a developer advocate for Earth Engine, taught
a time series session
that covered statistical techniques as applied to satellite imagery data. Students learned how to make graphics like the above, which shows the cross-correlation between
Landsat 8 NDVI
and the sum of
CHIRPS precipitation
from the previous month over San Francisco, CA. The correlation should be high for relatively
r-selected
plants like grasses and weeds and relatively low for perennials, shrubs, or forest.
My
workshop session
covered how users can upload their own data into Earth Engine and the many different ways to take the results of their analyses with them, including rendering static map tiles hosted on Google Cloud Storage, exporting images, creating new assets, and even making movies, like this timelapse video of all the
Sentinel 2A
images captured over Sydney Australia.
Along with the workshop sessions, we hosted five plenary speakers and 18 lightning talk presenters. These presenters shared how Earth Engine fits into their research, spanning from drought monitoring, agriculture, conservation, flood risk mapping, and hydrological analysis.
Plenary Speakers
Agriculture in the Sentinel era: scaling up with Earth Engine
, Guido Lemoine, European Commission's Joint Research Centre
F
lood Vulnerability from the Cloud to the Street (and back!) powered by Google Earth Engine
, Beth Tellman, Arizona State University and Cloud to Street
Accelerating Rangeland Conservation
, Brady Allred, University of Montana
Monitoring Drought with Google Earth Engine: From Archives to Answers
, Justin Huntington, Desert Research Institute / Western Regional Climate Center
Automated methods for surface water detection
, Gennadii Donchytes, Deltares
Lightning Presentations
Mapping the Behavior of Rivers
, Alex Bryk, University of California, Berkeley
Climate Data for Crisis and Health Applications
, Pietro Ceccato, Columbia University
Appalachian Communities at Risk
, Matt Wasson, Jeff Deal, Appalachian Voices
Water, Wildlife and Working Lands
, Patrick Donnelly, U.S. Fish and Wildlife Service
Stream-side NDVI and The Salmonid Population Viability Project
, Kurt Fesenmyer, Trout Unlimited
Mapping Evapotranspiration for Water Use and Availability
, Mac Friedrichs, USGS
Dynamic Wildfire Modeling in Earth Engine
, Miranda Gray, Conservation Science Partners
Fishing at Scale, now also in Earth Engine
, David Kroodsma, Skytruth
Mapping crop yields from field to national scales in Earth Engine
, David Lobell, Stanford University
Mapping Pacific Wildfires Impacts with Earth Engine
, Matthew Lucas, University of Hawaii
EarthEnv.org - Environmental layers for accessing status and trends in biodiversity, ecosystems and climate
, Jeremy Malczyk, Map of Life
Building a Landsat 8 Mosaic of Antarctica
, Allen Pope, University of Colorado Boulder
Monitoring Primary Production at Broad Spatial and Temporal Scales
, Nathaniel Robinson, University of Montana
Assessing Urbanization Trends for Public Health: Modelling Nighttime Lights Imagery in Africa with Earth Engine
, David Savory, University of California, San Francisco
National-scale mapping of forest carbon
, Ty Wilson, US Forest Service
Utilizing Google Earth Engine to Enhance Decision-Making Capabilities
, Brittany Zajic, NASA DEVELOP National Program
Keeping our users first
It is always inspiring to see such a diverse group of people come together to celebrate, learn, and share all the amazing and wondrous things people are doing with Earth Engine. It is not only an opportunity for our users to learn the latest techniques; it is also a way for the Earth Engine team to experience the new and exciting ways people are harnessing Earth Engine to solve some of the most pressing environmental issues facing humanity.
We've already begun planning for next year's user summit, and based on the success of this year's, we're hoping to hold an even larger one.
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