Brown, Jason

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Latest activity by Brown, Jason
  • Brown, Jason created an article,

    Mean Built-up Index for USA Cities Using RasterFrames

    Geospatial analysts often have a set of vector data (points, lines, and polygons) that label areas where they want to look at satellite imagery. The code below works through some common steps ...

  • Brown, Jason created an article,

    How to Query the EarthAI Catalog with OpenStreetMap Data

    You can use a large variety of spatial data to query Earth OnDemand. This page shows you how to use the crowdsourced OpenStreetMap (OSM) to query Earth OnDemand for related imagery. To access O...

  • Brown, Jason created an article,

    How to Create Interactive Maps from a RasterFrame

    In this tutorial, we demonstrate how to create interactive map layers from a RasterFrame of Landsat 8 imagery covering Orlando, Florida, USA. We show the three different methods available, whic...

  • Brown, Jason created an article,

    Spatial Join in PySpark

    A spatial join operation is analogous to a database table join or DataFrame merge operation, but considers the geographic relationships between records. In the context of EarthAI Notebooks, a sp...

  • Brown, Jason created an article,

    Calculating NDVI near Palmas, Brazil

    This example continues from Part 1, but provides a simple way to expand the time horizon considered in the analysis. Import Libraries and Create a SparkSession The imports are the same as Pa...

  • Brown, Jason created an article,

    Writing a RasterFrame to a Parquet File

    As discussed in the RasterFrames documentation, you can write a Spark DataFrame to the Apache Parquet format. There is support for writing and reading tiles. This may be useful to checkpoint y...

  • Brown, Jason created an article,

    Spatial Join in GeoPandas

    A spatial join operation is analogous to a database table join or DataFrame merge operation, but considers the geographic relationships between records. In the context of EarthAI Notebooks, a ...

  • Brown, Jason created an article,

    Read a Shapefile into Spark DataFrame

    In this example, we will read a shapefile as a Spark DataFrame. First, download a shapefile and upload into your file browser in the EarthAI Notebook app. In this example, we will work with the...