automated assimilation of data from the digisonde network bodo reinisch, ivan galkin, grigori...

Automated Assimilation of Data from the Digisonde Network

Bodo Reinisch, Ivan Galkin, Grigori KhmyrovEnvironmental, Earth, and Atmospheric Sciences Department Center for Atmospheric ResearchUniversity of Massachusetts Lowell

COST271 Third Workshop, Spetses Island, Greece 23-27 September 2003

2COST271 Third Workshop, Spetses Island, Greece

Outline

Availability of sounder dataIonograms, drift, characteristics, profiles

Real time Internet accessSAO – ExplorerInteractive DIDBase


Digisonde Network

Tromso

Chilton

Juliusruh

DourbesRome

AthensEl Arenosillo

Roquetes

NarssarssuaqSondrestrom

Qaanaaq

College

King Salmon

Goose Bay

Millstone Hill

Wallops Is.Pt.Arguello

Dyess AFB

Eglin

Jicamarca

Sao Luis

Cachoeira Paulista

Port Stanley

Grahamstown

Hainan Is.

Chung Li

OkinawaKokubunji

AnyangOsan

Bundoora

Gakona

Ascension Is.Fortaleza

San Vito

Wuhan

Fairford

Norilsk

Irkutsk

MadimboLouisvale

Elliott

Alice Springs

Wyndham

LearmonthSouth Hedland Lynd River

Kalkaringi

Curtin Base

BoolathanaAjana

LavertonLongreach

SchergerDarwin

Pontianak

IslamabadKarachi

Yakutsk

Zhigansk

Tucuman

Zhong Shan

Casey

Ramey

Santa Maria

Kenya

Hokkaido

Pruhonice


Standard Ionogram Image with Autoscaling and Profile

Profile

Online


Spread F Ionogram at Tromsø

(Courtesy Paul Cannon)

Online


Char Table

Reinisch, B.W., SAO (Standard Archiving Output) format for ionogram scaled data archiving, INAG Bulletin No. 62, WDC-A for STP, Boulder, CO, 47-58, 1998.


DIRECTOGRAM

Jicamarca 27 Nov 2002 (COPEX Campaign)


Drift Explorer

Online access to database of digisonde drift dataSkymapsDrift Velocity plots


Vx,Vz, Vy at Jicamarca March 21-26, 2003

Online


Online

Pre-sunset reversal

Nighttimeeastward drift

Daytimewestward drift

Gravity waves?


Jicamarca Skymap

Online

22:04 LT


Jicamarca Skymap

Online

22:38 LT


Online Real-Time Digisonde Stations

Tromso

Chilton

Juliusruh

DourbesRome

AthensEl Arenosillo

Roquetes


Qaanaaq

College

King Salmon

Goose Bay

Millstone Hill


Dyess AFB

Eglin

Jicamarca

Sao Luis

Cachoeira Paulista

Port Stanley

Grahamstown

Hainan Is.

Chung Li

OkinawaKokubunji

AnyangOsan

Bundoora

Gakona


San Vito

Wuhan

Fairford

Norilsk

Irkutsk

Direct WWW access to real-time dataNear real-time publishing on a separate serverData available with 3-day delayPassword-protected access

MadimboLouisvale


Data Access Scenarios

UMLDIDBDIDBaseOFFLINE

DIGISONDES

INTERNET ACCESS

ONLINE DIGISONDES

WWW

FTP

CD-ROM AND OTHER REMOVABLE MEDIA

U MASS LOWELL

SPIDRSPIDRSPIDRSPIDR

WORLD DATA CENTER

WWW

SQL

SQL

DIGISONDE OWNERS

FTP


How to Access a Station?

Tromso

Chilton

Juliusruh

DourbesRome

AthensEl Arenosillo

Roquetes


Qaanaaq

College

King Salmon

Goose Bay

Millstone Hill


Dyess AFB

Eglin

Jicamarca

Sao Luis

Cachoeira Paulista

Port Stanley

Grahamstown

Hainan Is.

Chung Li

OkinawaKokubunji

AnyangOsan

Bundoora

Gakona


San Vito

Wuhan

Fairford

Norilsk

Irkutsk

Direct WWW access to real-time dataNear real-time publishing on a separate serverData available with 3-day delayPassword-protected access

MadimboLouisvale

http://ulcar.uml.edu/framesn.htm


Direct Access to Online Digisondes

Public:~ 1 week of images:

IonogramsDaily plots of drift velocitiesSkymapsDirectograms (soon)

Years of autoscaled SAO dataDaily plots of chars

Password protected:~ 1 week of raw data(Latest 3 days are secured at USAF locations)

CD-ROM, QIC, Tape:Backup of all data


WDC SPIDR

Public (WWW):Years of autoscaled SAO data (retro and near real-time)

Upon request:Raw data for selected locationsSome edited data

SQL queries:Some autoscaled SAO data

(SAO Explorer can access SPIDR for reading)


DIDBase and SAO-X

Ionogram surveys

Contours

Profilogram

Char Table

Ionogram Editor

SAO Explorerdigisonde data visualization and editing tool

• online with DIDBase • offline with data files

Directogram

Characteristics Plot

SQL Queries“Best available”

SAO record (validated / autoscaled)

Data Subsetting

ADRESRequests for

validated SAO records

Requests of special campaign operating modes

DIDBase is anactive database (with online submissions of edited data from SAO-X workstations)

All access is password-protected

Read-only accessAll raw ionogram data Autoscaled SAO dataEdited SAO dataNear real-time data for

selected locations

Write accessOnline validation

(editing) of autoscaled data with SAO Explorer


ADRES

ADRES

List of data for validation

DIDBase at UMLCAR

Digisondes

DIDBase Request Processor

Requests

Reports

Offline archives

Ionogram Scalerworkstations

AutomatedData RequestExecution System

USER

Online archives


Summary

Internet access to 40 stationsIonogram and drift data

Ionogram and drift imagesIonogram and drift data filesSAO characteristics and profiles files

Interactive DIDBaseSQL requestsSAO-Explorer interface

WDC-A archives SAO files of selected sites


Online


Multi-beam Ionograms


Features of a Modern Ionosonde

1-40MHz Frequency RangeLow Power (150 W pulse) Operation (Pulse Compression)GPS Time Synchronization (for oblique sounding)Electronically Switched O/X PolarizationAutomatic Fixed Gain Control (120 dB Dynamic Range)Frequency Search to Mitigate Interference Multi-Beam IonogramsDoppler Interferometry Drift MeasurementsReal-Time Automatic Ionogram ScalingInternet Access for Real Time Data and System Control

automated assimilation of data from the digisonde network bodo reinisch, ivan galkin, grigori...

Documents

spetses island

lt slide

profile profile online

drift explorer online

copex campaign slide

realtime data

data archiving

jicamarca skymap