Achieving the Full Vision of Earth Observation Data Cubes

Earth observation imagery have traditionally been expensive, difficult to find and access, and required specialized skills and software to transform imagery into actionable information. This has limited adoption by the broader science community. Changes in cost of imagery and changes in computing technology over the last decade have enabled a new approach for how to organize, analyze, and share Earth observation imagery, broadly referred to as a data cube. The vision and promise of image data cubes is to lower these hurdles and expand the user community by making analysis ready data readily accessible and providing modern approaches to more easily analyze and visualize the data, empowering a larger community of users to improve their knowledge of place and make better informed decisions. Image data cubes are large collections of temporal, multivariate datasets typically consisting of analysis ready multispectral Earth observation data. Several flavors and variations of data cubes have emerged. To simplify access for end users we developed a flexible approach supporting multiple data cube styles, referencing images in their existing structure and storage location, enabling fast access, visualization, and analysis from a wide variety of web and desktop applications. We provide here an overview of that approach and three case studies.

[1]  Zhe Zhu,et al.  Current status of Landsat program, science, and applications , 2019, Remote Sensing of Environment.

[2]  Joseph Antony,et al.  GSio: A programmatic interface for delivering Big Earth data-as-a-service , 2017 .

[3]  Frank Warmerdam,et al.  The Geospatial Data Abstraction Library , 2008 .

[4]  Julia Wagemann,et al.  Geospatial web services pave new ways for server-based on-demand access and processing of Big Earth Data , 2018, Int. J. Digit. Earth.

[5]  Takeo Tadono,et al.  CEOS Analysis Ready Data for Land (CARD4L) Overview , 2018, IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium.

[6]  Brian D. Killough,et al.  Overview of the Open Data Cube Initiative , 2018, IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium.

[7]  Gabriel Popkin US government considers charging for popular Earth-observing data , 2018, Nature.

[8]  Michael A. Wulder,et al.  Opening the archive: How free data has enabled the science and monitoring promise of Landsat , 2012 .

[9]  Jian Li,et al.  Best practices for the reprojection and resampling of Sentinel-2 Multi Spectral Instrument Level 1C data , 2016 .

[10]  Thomas Maurer,et al.  Cloud Optimized Image Format and Compression , 2015 .

[11]  Peter Deutsch,et al.  DEFLATE Compressed Data Format Specification version 1.3 , 1996, RFC.

[12]  Ben Evans,et al.  The Australian Geoscience Data Cube - foundations and lessons learned , 2017 .

[13]  Lewis Adam,et al.  The six faces of the data cube , 2017 .

[14]  Adam Lewis,et al.  Rapid, high-resolution detection of environmental change over continental scales from satellite data – the Earth Observation Data Cube , 2016, Int. J. Digit. Earth.

[15]  J. Faundeen,et al.  U.S. Geological Survey spatial data access , 2002 .

[16]  Edzer Pebesma,et al.  Open and scalable analytics of large Earth observation datasets: from scenes to multidimensional arrays using SciDB and GDAL , 2018 .

[17]  L. Lymburner,et al.  Water observations from space: Mapping surface water from 25 years of Landsat imagery across Australia , 2016 .