ESPAS: How it fits and benefits

Transcription

1 ESPAS: How it fits and benefits Dieter Bilitza Department of Physics and Astronomy, George Mason University, Fairfax, Virginia, USA and Heliospheric Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA Review of ESPAS-related services in the United States Benefit of ESPAS and related services for our science endeavor

2 A few excerpts relevant to the Helio-Physics Data Environment (HPDE) NRC 2013 Decadal Survey Data Exploitation Significant progress has been made over the last decade in establishing the essential components of the solar and space physics data environment. However, to achieve key national research and applications goals, a data environment that draws together new and archived satellite and ground-based solar and space physics data sets and computational results from the research and operations communities is needed.... such an environment would include: Coordinated development of a data systems infrastructure that includes data systems software, data analysis tools, and training of personnel; Community oversight of emerging, integrated data systems and interagency coordination of data policies; Exploitation of emerging information technologies without investment in their initial development; Virtual observatories as a specific component of the solar and space physics research-supporting infrastructure, rather than as a direct competitor for research funds; Community-based development of software tools, including data mining and assimilation; Semantic technologies to enable cross-discipline data access.

3 More excerpts relevant to the Helio-Physics Data Environment (HPDE) Current status B.3 DATA SYSTEMS Data from NASA s heliophysics missions and many ground-based observatories can be obtained currently through the web, either directly from individual sites or through central archives such as the Solar Data Analysis Center (SDAC), Space Physics Data Facility (SPDF), or National Space Science Data Center (NSSDC). These data archives are also accessible through Virtual Observatories (VxOs), whose goals are to provide one-stop access to validated science data from many observatories, along with the necessary tools for cross-mission analysis and visualization. Access to sophisticated modeling tools is provided by repositories, such as the Community Coordinated Modeling Center (CCMC). Such agency-sponsored facilities host physics-based or empirical models developed by the user community and allow users to perform their own simulations. Problems The current lack of coordination among data and modeling centers stems mainly from their different philosophies, emphases, formats, architectures, and purposes. One can obtain similar datasets from various nationally funded data archives, as well as from VxOs. The existence of duplicative capabilities, each with significantly different purpose and implementation philosophy, provides greater, more flexible access at the cost of generating confusion about which path to follow to the data. National and international agencies have not identified a common goal nor have they adopted a standard approach for funding and implementing data facilities and archives. Future goals Heliophysics is poised to make a natural transition from being driven predominantly by the pursuit of basic scientific understanding of physical processes towards one that must also address more operational, application-specific needs, much like terrestrial weather forecasting. This transition requires (1) instant unfettered access to a wide array of datasets from distributed sources in a uniform, standardized format, (2) incorporation of the results of community-developed models, and (3) the ability to perform simulations interactively and to couple different models to track ongoing spaceweather events.

4 Elements of the US HPDE Virtual Observatories: VSO, VSPO, VHO, VMO (2), VITMO, VIRBO, VMR, VEPO, VWO Data Centers: SPDF, SDAC, NGDC Format and metadata: CDF, netcdf, FITS and SPASE data model Data Upgrades: Small grants for bringing data, old and new, into the HPDE

5 The VHO unites a number of repositories for solar wind data with the added task of assuring that the data are well calibrated and complete. The VMOs at GSFC and UCLA are responsible for the access to magnetospheric data. Active role in developing SPASE and related s/w tools. The VWO was selected to unite data associated with radio and plasma wave phenomena. Uses same middleware as VHO, VMO-GSFC, and VEPO FITS data sets from most solar satellites and many ground observatories; Support of SolarSoft s/w. ViRBO has helped to improve Radiation Belt data sets facilitate access to these data. It is the sponsor of the widely used Autoplot software. Virtual Observatories Data search and browse capabilities using different search criteria and different data access options

6 HDPHeliospheric Data Portal. formerly VSPO

7 Virtual Ionosphere Thermosphere Mesosphere Observatory Virtual Radiation Belt Observatory

8 Madrigal incoherent scatter radar data base system developed by MIT/Millstone Hill providing access to data from most of the ICS radars. HP Data Center Longterm save-keeping of HP data and facilitating access to these data through browse, subset, and download options and through the additional capabilities of the VxOs

9 Easy data browse and display of user-specified time and parameters Graphics, listings, file download (ASCII and CDF) Powered by a collection of IDL routines (CDAWLib) Services are also available by CDAS webservices API and data directories by direct FTP/HTTP SPDF Space Physics Data Facility NASA s Heliosphere Final Archive Goddard Space Flight Center Important Ancillary Services of SPDF CDF development OMNI solar wind database & OMNIweb Heliospheric Data Portal (VSPO) SSCWeb and 4D Orbit Viewer: Multi-mission orbit displays/listings; conjunction queries for coordinated science planning

10 Run on request: SAMI, CTIP, USU-GAIM, TIE-GCM, GITM, more Instant run: IGRF, IRI, MSISE, more

11 IRI

12 IRIweb IRIweb

13

14 .. a few IRIWeb Examples

15 DATA UP- GRADES $50K 1 year CNOFS: VEFI TWINS: ES/DOS, ES/HiLET IMAGE: FUV, HENA, RPI Polar: CAMMICE/MICS, VIS Geotail: EPIC UARS: WINDII, HRDI AMPTE: MEPA DE2: FPI&WATS ISEE1&DE1/Wave data Alouette&ISIS: topside sounder GPS: ROTI NRL missions: RAIDS, SHIMMER POES/MetOp, WIND/EPACT,

16 IRI-related event studies that will benefit from ESPAS and HPDE Storm effects in IRI currently only considered for fof2 and primarily for middle latitudes. Find data to study and model storm effects at low latitudes Need to model and include storm effects on hmf2 and topside and bottomside profile Same as above Wish-list: Catalog of storm events with direct access to available ground and space data.

17 IRI-related statistical studies that will benefit from ESPAS and HPDE Extending IRI to plasmaspheric altitudes (Example) Better description of EIA characteristics Global models for occurrence probability of spread-f and of scintillations GPS/ROTI Representation at very low solar activity, recent minimum Find data across disciplines More accurate representation of solar forcing including the 27-day periodicity Access to EUV data and indices

18 Database RPI ~3,000 N e profiles Nsumei et al. [2008] Polar Cap Huang et al. [2004] - Plasmasphere 1400 km h ISIS-2 ~80,000 ISIS-2 N e profiles Digisondes/ISRs or IRI hmf2 N(h) 18

19 ISIS 2 and RPI Ne Profiles 19

20 Connecting Topside model to Plasmasphere model 06 LT RPI plasmasphere model Measured digisonde profile ISIS Vary-Chap model 20

21 HDP: VSO: VITMO: ViRBO: VHO: VMO: VWO: VEPO: VMR: SuperMAG: SPDF: NGDC: DARTS: SDAC: ICS-Madrigal: CCMC: IRI: