About the Project

Introduction

  New technological advances have opened opportunities for space research and exploration. The majority of this exploration is through launching satellites that orbit planetary bodies, including planets, moons, and asteroids. These satellites collect large amounts of data and take images while orbiting the planetary bodies. The information is then sent back to Earth for the planetary science community to research and better understand our solar system.

  As space exploration increases among both federal agencies and private citizens, there is a need for community access to accurate planetary maps and data. Mars is a target for exploration due to its proximity to Earth inside of our solar system. In order to plan for future exploration, it is vital that scientists use the data and images that our satellites and non-human space missions have gathered.

  Using these resources, scientists can perform analyses of data from Mars to plan for future missions and scientific discovery. There are many tools that allow scientists to analyze and create maps from the information gathered; however, these tools are not well-developed. The planetary science community processes these images by using software that requires extensive knowledge for complex tools. In addition, the planetary science community must store terabytes of data on their own devices in order to interact with and research the images.

  The United States Geological Survey (USGS) Astrogeology Science Center (ASC) in Flagstaff Arizona provides the international planetary science community with analysis ready data. These products support research in planetary cartography, geoscience, and remote sensing. The ASC also develops software for scientific and cartographic analysis of planetary data. The planetary data is distributed to the international scientific community. Finally, ASC provides the community with cartographic products and archiving data.



Details





  The USGS Astrogeology Science Center serves data using a community developed standard to the planetary science community to access Analysis Ready Data (ARD). ARD are data that has already been processed through the complex imaging software at USGS. This significantly reduces the magnitude of data processing and removes the need to download and prepare large amounts of data for research and analysis.

  USGS has already distributed this analysis ready data through the Spatial Temporal Asset Catalog (STAC). STAC is a standard for storing, discovering, and analyzing spatial-temporal data to describe various geospatial information. This provides better indexing and discovering of the analysis ready data.

  The STAC specification describes a JSON schema for machine data discovery. The STAC specification also provides an API specification for developers to write human-usable discovery tools. Using these machine-accessible specifications, USGS would like a human-usable data discovery tool that uses web mapping to help users search for and locate data.

  In 2019, the USGS assigned an NAU capstone team to develop an interactive web map that supports planetary data. The map is called CartoCosmos, reflecting the capstone team’s name. The CartoCosmos team developed a plugin extension for Leaflet, an open source Javascript library for interactive maps. This plugin extension was developed to support mapping of planetary data sets. The CartoCosmos web map is great for visualizing large planetary image mosaics, but has no support for visualizing the individual STAC assets or STAC catalogs the clients wish to make available.

  Thus, the USGS team has tasked Team GeoSTAC with upgrading and adding new features to the web map. This includes the ability to visualize individual STAC asset locations on a map of Mars and load the associated images into the CartoCosmos web map.