Space Physics Archive Search and Extract
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SPASE
The Space Physics Archive Search and Extract (SPASE) effort is a Heliophysics community-based project with the goals of:
- Facilitating data search and retrieval across the Space and Solar Physics data environment with a common metadata language
- Defining and maintaining a standard Data Model for Space and Solar Physics interoperability, especially within the Heliophysics Data Environment
- Using the Data Model to create data set descriptions for all important Heliophysics data sets.
- Providing tools and services to assist SPASE data set description creators as well as the researchers/users
- Working with other groups for other Heliophysics data management and services coordination as needed
The Space Physics Archive Search and Extract (SPASE) effort is implemented by the SPASE Consortium which is composed of representatives of the international Heliophysics data community. The SPASE Working Group is currently the only international group supporting global data management for Solar and Space Physics.
Consortium Participants
Many people from a wide range of organizations have participated in the SPASE consortium. The origanizations include:
- Augsburg College
- California Institute of Technology (CalTech)
- Centre de Données de la Physique des Plasmas (CDPP)
- Istituto Nazionale di Astrofisica (INAF)
- Japan Aerospace eXploration Agency (JAXA) - STP/Ehime
- Japan's Inter-university Upper atmosphere Global Observation NETwork (IUGONET)
- Jet Propulsion Laboratory (JPL)
- John Hopkins University/Applied Physics Laboratory (JHU/APL)
- George Mason University
- Goddard Space Flight Center (GSFC)
- National Aeronautics and Space Administration (NASA) HQ
- National Oceanic and Atmospheric Administration (NOAA)
- NOAA's National Geophysics Data Center (NGDC)
- Rutherford Appleton Laboratory (RAL)
- Stanford University
- Southwest Research Institute (SwRI)
- University of California, Los Angeles (UCLA)
SPASE Inside
Systems that use SPASE compliant metadata to enable search services, data discovery or SPASE registry services can display the "SPASE Inside" logo.
Current systems that use SPASE Inside.
United States: NASA's Heliophysics division
- SPASE Registry (http://www.spase-group.org/registry/)
- Provides comprehensive access to all registered metadata in NASA's Heliophysics Division.
- SPASE.info Registry Landing Page (http://spase.info/)
- Formatted information about each registered resource.
- SPASE Registry (http://www.spase-group.org/registry/)
- Provides comprehensive access to all registered metadata in NASA's Heliophysics Division.
- SPASE.info Registry Landing Page (http://spase.info/)
- Formatted information about each registered resource.
- Heliophysics Data Portal (formerly VSPO) (http://heliophysicsdata.gsfc.nasa.gov/)
- Provides a quick and easy way to find and access a comprehensive set of NASA and other datasets, images, movies, and associated services
- Virtual Heliospheric Observatory (http://vho.nasa.gov/)
- Provides uniform metadata for heliopheric data sets and actively collaborates with the Virtual Energetic Particle Observatory and the Virtual Waves Observatory to enable access to energetic particle and waves data
- Virtual Energetic Particle Observatory (http://vepo.gsfc.nasa.gov/)
- Provides discovery, access, understandability, and usability of energetic particle data products from selected spacecraft and sub-orbital instruments
- Virtual Magnetospheric Observatory at Goddard (VMO/G) (http://vmo.nasa.gov/)
- Provides discovery and access to magnetospheric data sets from both spacecraft and ground observatories.
- Virtual Magnetospheric Observatory at UCLA (VMO/U) (http://vmo.igpp.ucla.edu/)
- Provides discovery and access toheliospheric and magnetospheric data sets from both spacecraft and ground observatories.
- Virtual Model Repository (VMR) (http://vmr.engin.umich.edu/)
- Enables open access to model output used in support of published papers, makes computational model results available to the general community and provides intuitive data-model comparisons.
- Virtual Radiation Belt Observatory (ViRBO) (http://virbo.org/)
- Virtual Wave Observatory (VWO) (http://vwo.gsfc.nasa.gov/)
- Makes Heliophysics wave data searchable, understandable and usable by the scientific community
- Magnetogram Analysis for the Network of Geophysical Observatories (MANGO) (http://mango.igpp.ucla.edu)
- Provides discovery and access to magnetospheric data from world-wide ground-based observatories.
Canada
- AUTUMN Virtual Magnetic Observatory (http://autumn.athabascau.ca/)
- Provides access to data from the Athabasca University Geophysical Observatory (AUGO).
- Canadian Space Science Data Portal (CSSDP) (https://cssdp.ca/)
- Enable and simplify researcher access to space science analytic tools and data.
Japan
- IUGONET (http://www.iugonet.org/en/mdformat.html)
- Provide a unified metadata database and seamless data environment for ground-based observations of the upper atmosphere. acquired by a global network of radars, magnetometers, optical sensors, helioscopes, etc., and stored individual data bases.
Europe
- Centre de Donnée la Physique des Plasmas (CDPP) (http://cdpp.cesr.fr/)
- Automated Multi-Dataset Analysis (AMDA) (http://cdpp-amda.cesr.fr)
- Provide integrated analysis of multi-point and multi-instrument data for case studies and statistical studies of plasmas in space physics.
- German Research Centre for Geosciences (http://www.gfz-potsdam.de/portal/gfz/home)
- Information System and Data Center for geoscientific data (http://isdc.gfz-potsdam.de/)
- An access point for all manner of geoscientific geodata, its corresponding metadata, scientific documentation and software tools. The majority of the data and information, the portal currently offers to the public, are global geomonitoring products such as satellite orbit and Earth gravity field data as well as geomagnetic and atmospheric data for the exploration.
Exploring Semantic web ontologies for use with reasoners and semantic searches.
EU Framework 7 Projects
- near-Earth space data infrastructure for e-Science (ESPAS) (http://www.espas-fp7.eu/)
- An e-Infrastructure to support access to observations, modeling and prediction of the near-Earth space environment extending from the Earth's atmosphere up to the outer radiation belts.
- IMPEx (http://impex-fp7.oeaw.ac.at/)
- An integrated interactive computational framework where data from planetary missions will be interconnected with numerical models.
SPASE (meta)Data Model
The SPASE Data Model consists of an exclusive set of resource types which can be used to describe data along with its scientific context, source, provenance, content and location. It is designed to support a federated data system where data may reside at different locations and may be seperated from the metadata which describes it.
While the data model is neutral on how to it may be expressed, the preferred expression form is XML. There are XML Schema documents which can be used to generate and validate SPASE compliant XML documents.
There are tutorials and other information available at the SPASE School. Top Level View The Resource Types currently in the data model are:
Annotation
- Explanatory or descriptive information that is associated with another resource.
Catalog
- Listing of events or observational notes.
Document
- Plain or formatted text that may include graphics, sound, other multimedia data, or hypermedia references.
Display Data
- A graphical representation of data.
Numerical Data
- Data product stored as numerical values in a specified format.
Granule
- An accessible portion of another resource.
Instrument
- A device that is used to sense and parameterize a physical phenomenon.
Observatory
- The host (spacecraft, network, facility) for instruments making observations.
Person
- An individual human being.
Registry
- A location or facility where resources are catalogued.
Repository
- A location or facility where resources are stored.
Service
- A location or facility that can perform a well-defined task.
Each of these elements is broken down into sub-elements that provide sufficient detail for adequate description of data sets. The Resource Types Numerical Data, Display Data and Catalogue are the resources used to describe Heliophysics data products. These data product descriptions reference the other resources which contain descriptions of the observatories, instruments, people, etc. that created the data products. The resources are described using the terms from the SPASE Data Dictionary presented in the Data Model document.
History
1998 - ISTP
- The SPASE effort has its root in the data handling session of the ISTP workshop held at RAL in 1998, when on Sept 26 a resolution was passed calling on the "larger data centers" to "do something" to make data more accessible.
2001 - AISRP
- Early in 2001 a breadboard interoperability test bed was implemented between NSSDC and CDPP/CNES, and later that year, in response to an AO from NASA AISRP ROSS (Applied Information Systems Research Program, Research Opportunities in Space Science), a proposal entitled "A Space Physics Archive Search Engine (SPASE)" was submitted jointly by NSSDC, SwRI, RAL and CDPP.
2002 - Grassroots
- While this proposal was not funded a volunteer effort continued and attracted broader participation. It was recognized that a data model was needed to establish an "interlingua" to share resources across the entire space physics domain. The goals of this effort were defined in late 2002 and the new moniker of Space Physics Archive Search and Extract (SPASE) was adopted.
2003 - Open Community – NASA LWS
- In 2003 the effort was organized as an international consortium with an open invitation for anyone in the community to participate. U.S. participants in SPASE were funded by NASA in July 2005 which helped accelerate the effort.
2005 - Release 1.0
- In release of the SPASE data model. November 22, 2005.
2006 - Release 1.1.0
- In response to community feedback, the data model was improved. In that same year NASA solicited proposals to establish thematic virtual observatories for the heliophysics community and SPASE was adopted as the metadata standard to enable interoperability. Released August 31, 2006.
2007 – Release 1.2.0
- Based on feedback from the community and from the selected virtual observatories the data model was further refined and version 1.2.0 was released in May 22, 2007.
2009 – Release 2.0.0
- After a period of use in NASA's VxOs the model was streamlined and enhanced to support a wider range of resources. Released April 15, 2009.
2010 – Release 2.1.0
- Additions were made to support a wider range of phenomenom types and particle attributes. Some grammar changes were made, most important was changing "Qualifier" to "Component" which more accurately represented the concept. Released March 18, 2010
2011 – Release 2.2.0
- Added "Excel" as an allowed format, improved Render Hints, updated definitions, and added support for referencing resources in cloud storage. Additional terms were included to improved the ability describe solar data. Released January 6, 2011.
2011 – Release 2.2.1 Added "core", "halo", "strahl" and "superhalo" to the dictionary and to "Qualifier". Released August 18, 2011.
References
- SPASE group web site http://www.spase-group.org/