Summary of the workshop
Mamoru Ishii

Agenda Item
• Lap-up of the Special session– Comments– Treatment of the metadata• Business meeting– Next meeting– AOSWA link
– Join as associate member of AOSWA

Lap-up of the special session• “Omiai” meeting is a new style to create a newcollaboration.
• Although there are several issue to be improved, (I believe)
many people enjoy the meeting.
• Comments– Discussion time is too short– We need some additional slot which we discuss with preferable
institutes.
– It is very heavy to make combinations in advance. In addition,
several institutes disappear and the counterparts lost theirpartners.
– The expected merit of “Omiai” is to create a new collaboration
with needs-seeds matching, but in addition that, it is anothermerit to meet institutes who does not talk each other in ordinalsituation.

Treatment of metadata• With preparing the “Omiai” session, we could get
together the metadata of observation in each
institute. They are precious information and (Ibelieve that) they should be shared inappropriate meta database.
• On the assumption of agreement for open policyof these metadata from each institute, we would
like to have discussion how we treat them. For
example,– Build our own meta-database– Put them in some meta-database in present

Business meeting• Next ASOWA workshop?

Function of AOSWA Secretariat
Web site: aoswa.nict.go.jp

Newsletter:AOSWALink

Mailing List

AOSWA@ml.nict.go.jp

AOSWA Link

Volunteers of article writers are needed!

AOSWA associates• 26 institutes in 13 countries in present• 75 people attended in AOSWA-3 Workshop
from 14 countries (from other institute ofAOSWA associates! Thanks!)• We strongly recommend to join AOSWAassociates.

Cross section of space weather
Regional alliance• AOSWA• Space Weather workshop• European Space Weatherweek

Functionalorganization
• WMO
• ITU
• UN/COPUOS• ICAO

Background• Radio propagation• Meteorology• Space development

AOSWA should be agate to internationaland functionalorganization
AOSWA should be abridge among
members whichhave different
backgrounds

International organizations related to operational
space weather
ITU
UN/COPUOS
UN

ICAO
WMO

ICSU
10ISESITU-R SG3L

ISWI (International Space
Weather Initiative) WG
2009~2011
Long-Term Sustainability WG
2011~2014
IAVSWOPSG (InternationalAirways Volcano WatchOperations Group) 2009~
ISTF (Ionospheric study TaskForce)
ICTSW (International Coordinate
Team for Space Weather) 2009~

Ionospheric variations after massive tornados

Southeast Asian GNSS Networks
Available for Ionospheric Researches
PresentNear Future Image

TID?
EIA?

TID
EIA

Plasma Bubble?

EIA?
TID?

Plasma Bubble

EIATID• The GPS-TEC maps greatly contribute to the ionospheric researches andthe nowcast/forecast of space weather.
• However, it is difficult for a government and/or a data provider to provide
the original GNSS receiver data abroad due to political and/or economic
reasons because the raw data of GNSS receiver including multi-frequency
carrier phase and psuedorange information are important and valuable

GPS Observation Data （RINEX ver.2 format）

Filename: ssssdddh.yyo
ssss: marker nameddd: day of the year
h: file sequence number
yy: 2-digit year

Header Part

year, month, day, hour,min, sec, flag, # ofPRNs, PRNs
1 epoch• RINEX (Receiver Independent Exchange Format) is a de facto
standard in exchanging GNSS observation data and potential users of
GTEX would be familiar with RINEX.

GNSS-TEC exchange (GTEX) format (v1.0)

Filename: ssssdddh.yy_TEC
ssss: marker nameddd: day of the year
h: file sequence number
yy: 2-digit year

Header PartRINEX files used toderive slant TEC
Rec. Position in Lat, Lon, Alt
Types of obs. in RINEX
Types of data productInterval according to RINEXsTEC, TEC flag, Used RINEX
observation data, sat. zenith
angle, azimuth angle for PRN21year, month, day, hour,min, sec, flag, # ofPRNs, PRNs
1 epoch