2bac828d66259d531ef3c3deb91cb73c.ppt
- Количество слайдов: 38
DIDBase: Intelligent, Interactive Archiving Technology for Ionogram Data B. W. Reinisch, G. Khmyrov, I. A. Galkin, and A. Kozlov Environmental, Earth, and Atmospheric Sciences Department, Center for Atmospheric Research, University of Massachusetts Lowell, USA
Our choice • RDBMS Server - Firebird (Interbase) • JDBC - Database Client • Language – Java – Applications – Applets – Servlets • Application Server - Tomcat
Ionogram processing software • DIDBase (ionograms, scaling data, ionospheric characteristics) • Ionogram software suite – SAO Explorer – DIDB Fill, Smart Backup – DIDB Request Processor (Cal. Val project) – Analyze Scaling Quality – Representative Ionospheric Characteristics – Visualization programs: Ion 2 Png, Drg 2 Png, Drg. Maker
Data Management Automation • • DIDBase data ingestion ADRES Smart Backup Database backup Extended data quality analysis • Bad data • Incomplete data • Future data
ADRES Digisondes ADRES Online archives Automated Data Request Execution System Requests Offline archive s DIDBase at UMLCAR DIDB Fill (REQ files) DIDBase Request Processor Reports (SAO files) USER Save scaled data SAO Explorer Query only data for requests
Ion 2 Png thumbnail mode
WEB-interface http: //car. uml. edu/DIDBase
Station list
Inventory for Station
Calendar list
One day
Ionogram example
Login Step 1 Step 3 Step 2
Manual scaling • Total manually scaled data – 144297 (more than 4 years of 15 min data)
DMSP F 16 weather satellite • DMSP (Defense Meteorological Satellite Program ) F 16 weather satellite was launched 18 October 2003 • Orbital parameters are period 101. 9 min , apogee 853 km, perigee 843 km, and inclination 98. 9°. • Two optical instruments onboard: – SSULI - limb scanning ultraviolet imager / spectrometer (built by the Naval Research Laboratory) – SSUSI - nadir scanning ultraviolet imager /spectrometer and photometer (built by the Applied Physics Laboratory at Johns Hopkins University)
Cal. Val campaign • SSULI and SSUSI sensors make measurements of far and extreme ultraviolet airglow, which are converted into electron and neutral density profiles by ground processing software. • Measurement calibrated and validated with ground truth – Digisondes – Incoherent Scatter Radars (ISR) – F 16 SSJ 5 Particle Detector Data for auroral measurements
Digisonde network • 50 Digisondes in the network • 27 Digisondes are participating in Cal. Val campaign • Products: – Ionospheric characteristics (fo. F 2, fo. E, hm. F 2, …) – Regular profiles – Auroral profiles
Cal. Val Requests • Nominally 4 requests per Station per Day when overpass happen for limb and surface measurements on ascending and descending part of orbit • Each Request has one hour time interval (± 30 min from overpass time) • Cal. Val is planned for period from Dec 15 2002 to Mar 2005 • Some “dry run” data for 2001
Statistics Request status Total requests Request data loaded to DIDBase Manually scaled and reported requests 12230 10826 10027 Manually scaled and reported ionograms Total, as of Oct 2004 50598
Interactive Ionogram Processing • Ionogram Data Visualization – ionogram display with zoom-in and details-on-demand – ionogram surveys (using “thumbnails”) – ionogram movies • Interactive Ionogram Scaling • Profile Inversion • Time series of Scaled Data – – Ionospheric characteristics Plasma density contour/profilogram Directogram Text tables for ASCII export
Data Formats Supported • Ionograms – – – MMM BEM SBF RSF-flex PGH RSF • Scalings – SAO 3. 0 - 4. 3 – ART – ADP binary
Welcome to SAO-X Profilogram Ionogram Editor Char Table Ionogram surveys Directogram Characteristics Plot Contours
Main screen Scaler (DIDB only) List of records Ionospheric characteristics set. Drag and drop to change order.
Ionogram frame Mode controls Acton buttons Context menu (mouse right button) Details on mouse position
Database connection • Read-only connection to DIDB over the Internet • Remembers last connection information
Database queries • List of available data with the station name and the start/end times • DIDB inventory available • Use of ionospheric characteristics as search criteria • Query only manual data • By default, the queries bring the data of the highest available quality Manually scaled Select measurements with auroral layer
Inventory tree (DIDB only) • Simple navigation • Easy to check what is stored in DIDB • Comprehensive information about data • “One click” to set station/date in the Query dialog
DIDB write access • Scaler password protected login • Submit current record • Auto submit option
SAO-X homepage
Installation Install. Anywhere: commercial strength installers for various platforms. Windows, Solaris: installers with Java VM included. Others: JVM has to be installed first. http: //car. uml. edu/Installation/SAO-X_3/install. htm
Digisonde and Internet • Web Publishing (via homepage) – Latest displays – Retro displays – SAO archive • Dissemination (by FTP deliveries) – Near real-time – Works from behind a firewall
1995 1996 1997 1998 Digisonde Homepage
Digisonde Homepage (2) 1999 2001 2000 2002
Digisonde Homepage (3) 2003 - 2004
2004 Digisonde Homepage
Digisonde Data Tree Raw Ionograms Housekeeping BIT, ERR DIGISONDE MMM, BEM, PGH, SBF, RSF 16 channel D-256 DRG: Directograms SAO: Scaled data DFT: Raw Drift Ionogram displays Time Series Contours Profilograms DVL: Velocities SKY: Skymaps TLT: Tilt MUF Old Formats ION, IHT, IOS, TEC, ADP, ART online pictures
References • UMLCAR home page http: //ulcar. uml. edu • Digisonde home page http: //ulcar. uml. edu/digisonde. html • SAOExplorer home page http: //ulcar. uml. edu/SAO-X. html • DIDBase home page http: //ulcar. uml. edu/DIDBase/
Publications • Reinisch, B. W. , I. A. Galkin, G. Khmyrov, A. Kozlov, and D. F. Kitrosser, Automated collection and dissemination of ionospheric data from the digisonde network, Adv. Radio Sci. (2004), 2: 241 -247.
2bac828d66259d531ef3c3deb91cb73c.ppt