2008 Workshop:World Day Planning
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World Day Planning
Contents |
Location
Basel
Date/Time
1300-1500 Wednesday 18 June 2008
Convener
Format of the Workshop
short-presentations and round table discussion
Duration
2 hours (default)
Estimated attendance
35
Conflicts with other workshops
JRO Amigos, Arecibo Friends, I-T Challenges through the IPY
Special technology requests
Power Point projector
Forum
Comments, Questions, Discussion Forum
Brief Initial Description
The URSI Incoherent Scatter Working Group (ISWG) will have its usual planning meeting at CEDAR to coordinate the World Day experiments involving the world¿s upper atmospheric observatories. The procedures for scheduling World Day observations are described here and the other links referenced therein which include a sample proposal. Written proposals are requested for meeting specific research needs using the World Day observations. These proposals should be submitted by May 28. The planning meeting is for the ISWG and UAF staffs to review all the proposals submitted and determine how the global network of ISRs can best satisfy the approved observational requests. The proposer¿s presence during this discussion is not required, but all are welcome, especially students.
Presentation Resources
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Workshop Summary
World Day Planning
Convenor and Chair of the URSI Incoherent Scatter Working Group: Wesley E. Swartz
A planning meeting of the URSI Incoherent Scatter Working Group (ISWG) for the 2009 "World Day" (WD) schedule was held as one of the Wednesday afternoon CEDAR workshops. The ISWG is tasked to coordinate about 500 hours of experiments at all the incoherent scatter radars each year. As part of the IPY effort, most of ISRs had joint operations for considerably more hours than this.
Eight proposals were submitted in response to this year’s solicitation. These are summarized below along with comments from the meeting and the reviewers.
1. Dynamics and temperature of the lower and upper thermosphere during Sudden Stratospheric Warming
• Investigators: Larisa Goncharenko, Peter Hoffmann, Irfan Azeem, and William Ward
• Requested length – 10 days
• Objectives:
– Measure winds and temperatures in thermosphere
• Before and during sudden stratospheric warmings
– Compare with average conditions
– Examine coupling effects
• Special needs:
– Month long alert period
– January or February
• Comments:
– This effort was met with considerable enthusiasm because of its unexpected relationship to the winter variability of the Jicamarca drift measurements.
– January or February
2. Temporal development of wind reversals and temperature of the lower and upper thermosphere during spring transistion
• Investigators: Larisa Goncharenko and Peter Hoffmann
• Requested length – 10 days
• Objectives:
– Measure wind, electron and ion temperatures
• Before and after spring transition
– Examine energy deposition derived from mesospheric radars
– Examine factors responsible for circulation changes
• Special needs:
– Month long alert period
– September
• Comments:
– After some discussion about the large fraction of the WD effort requested for just two proposals, it was decided that this experiment would only run in the Fall if the Stratospheric Warming 10-day request was not run in January or February.
3. ISR/GPS Coordinated Observation of Electron Density Variations
• Investigators: Shun-Rong Zhang and Anthea Coster
• Requested length – 5 days
• Objectives:
– To study latitudinal variations of the ionosphere
• American logitude sector, plasma layer behavior
– To examine time and latitudinal variations in the electron contend of the plasmasphere
– To test the GPS TEC mapping function
• Special needs:
– November or December
• Comments:
– Support recommended.
– See comments under #5.
4. Coordinated study of Quasi-Periodic Medium-Scale Traveling Ionospheric Disturbances with Extended Latitude Coverage
• Investigators: John Mathews, Frank Djuth, D. Livneh, I. Seker, Mike Sulzer, Craig Tepley, S. Smith, William Bristow, John Foster, and Mike Nicolls
• Requested length – Three 2-day periods
• Objectives:
– Are MSTID’s related to QP thermospheric waves observed at AO, MSI, Poker Flat and others?
– Under what geophysical conditions do these QP disturbances exist
• Special needs:
– High time resolutions (5 minutes or better)
• Comments:
– This was a highly rated request.
5. Terrestrial effects of solar wind processes
• Investigators: Alexis Rouillard, Chris Davis, Ivan Finch, and Ian McCrea
• Requested length – Two 24-hour periods
• Objectives:
– Measure effects of
• equatorial solar coronal holes
• fast solar streams
• CME’s
• solar flares
• Special needs:
– Select observing dates one month in advance
• Comments:
– There was considerable discussion about the feasibility of giving the advance notice needed to fulfill this request. Only the coronal holes can be predicted one month in advance (and this not with certainty) with the other events transitioning from the sun to the earth in a few days or a few hours.
– This one can be combined with the ISR/GPS (#3 TEC mapping) run, especially because the TEC mapping planners would love to catch a storm in their 5-day run.
6. Global Measurements of the Meteor Input Function
• Investigators: John Plane and Diego Janches
• Requested length – Two 24-hour periods
• Objectives:
– Measure micrometeor input function
• Geographical, seasonal, diurnal behavior
• Special needs:
– One period near a solstice
– One period near an equinox
• Comments:
– It was pointed out that the radar modes required do not provide the “standard ISR” parameters (Ne, Te, Ti, Vi).
– Deemed a reasonable request, but possibly limited to just one 24-hour period instead of the two requested.
7. International PMSE Intervals
• Requested length – TBD
• Objectives:
– Global polar, not just regional as other campaigns
• Special needs:
– June – August
• Comments:
– Since this is a polar phenomena, the question arose whether the other radars should participate. (Note Sondrestrom’s high frequency is not conducive to detecting PMSE.) The other radars could be scheduled at the same time to pursue other strictly low latitude objectives, C/NOFS for example, that could perhaps provide the advantage of more common days. Otherwise the effort could be coordinated apart from the full WD program.
8. International Auroral Intervals
• Requested length – TBD
• Objectives:
– Simultaneous measurements in European and American auroral sectors
– Measure inflow into the polar cap in one sector
– And outflow in the other sector
• Special needs:
– European and American auroral sectors in darkness
• Comments:
– This is another strictly polar phenomena, and coordinated directly with EISCAT, ESR, Sondrestrom, RISR, and PFISR separately from full WD program.
9. C/NOFS Support
• Investigators: Odile de La Beaujardiere, David Hysell, Wes Swartz
• Requested length – TBD
• Objectives:
– Forecasting ionospheric irregularities that adversely impact communication and navigation systems.
• Special needs:
– None
• Comments:
– Satellite is now in orbit and instrumentation looks good.
– Low inclination orbit, so prime data will come from low latitude radars.
– As many overhead passes need to be supported as possible.
– Coordination will be primarily with individual radars, but WD periods should also be exploited as events at other latitudes may become part of the forecasting scenarios.
10. Synoptic
• Investigators: Wes Swartz and Jan Sojka
• Requested length – TBD
• Objectives:
– Fill in data base with missing conditions, seasons, etc.
• Special needs:
– None
• Comments:
– These days are not formally proposed.
– See WD schedule.
Other Discussion:
Sixto Gonzalez said that Arecibo will add one day to the beginning of each world day run to help ensure full coverage of the scheduled days. Tony van Eyken proposed that we prepare for another “World Year” during the coming solar max. The value of these long runs (a la the IPY run) was strongly supported by Jan Sojka. The community should be aware that the Resolute AMISR (RISR) is scheduled to be online by the end of 2008 and we need to capitalize on the momentum that this should generate. Wes Swartz’s extended term as the Chair of the URSI Commission G Incoherent Scatter Working Group ends at the URSI General Assembly in August. The current Vice Chair, Ingemar Häggström, with then take over as Chair.
The initial template for the 2009 schedule only included provision for the first 4 proposals, and the other 4 were submitted too late to be incorporated. The schedule and its updates will be posted at:
http://people.ece.cornell.edu/wes/URSI_ISWG/2009WDschedule.htm.
Bear in mind that as of this report, the posted schedule has not yet been updated!
As a reminder, a description of the World Day proposal procedure can be found at:
http://people.ece.cornell.edu/wes/URSI_ISWG/RequestingWD.doc.
