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What does timelapse mean in Google Earth Engine?
Timelapse. Timelapse is an example that illustrates the power of Earth Engine’s cloud-computing model, which enables users such as scientists, researchers, and journalists to detect changes, map trends, and quantify differences on the Earth’s surface using Google’s computational infrastructure and the multi-petabyte Earth Engine data catalog.
How to create a time series in Earth Engine?
Tutorials contributed by the Earth Engine developer community are not part of the official Earth Engine product documentation. This tutorial provides methods for generating time series data in Earth Engine and visualizing it with the Altair library using drought and vegetation response as an example.
How is Google Earth Engine used in this tutorial?
Note that this tutorial uses the Earth Engine Python API in a Colab notebook. At the heart of this tutorial is the notion of data reduction and the need to transform data into insights to help inform our understanding of Earth processes and human’s role in them.
How to use Google Earth Engine with Altair?
To analyze even larger datasets, you may need to modify the workflow to export FeatureCollection results from Earth Engine as static assets and then use the static assets to perform the subsequent steps involving Earth Engine table formatting, conversion to pandas DataFrame, and charting with Altair.
What can you do with a time lapse image?
It can inform you; watch the explosion of activity in the Barnett Shale and you might get an insight into the fall in oil price. It can shock you as lakes dry up in front of your eyes. It is the Wikipedia equivalent of Earth Observation. A time-lapse image certainly does say a thousand words. Undoubtedly this is an amazing creation.
How to change time series in Google Earth?
Toggle the Greenness, CDL and NAIP imagery layers on and off. Use the inspector to click on pixels with different levels of Greenness or different crop types and explore the differences in the NDVI time series between different pixels.
How do you make a time series chart?
Now that we have set up our user interface and built the call-back, we can define a time series chart. The chart uses the lat/long selected by the user and builds a time series for NDVI or EVI at that point. It takes the average NDVI or EVI at that point, extracts it, and then adds it to the time series. This series is then plotting as a chart.