WD2011
World Day Schedule 2011
2011 Incoherent Scatter Coordinated Observation Days
URSI-ISWG
Data collection on these Incoherent Scatter Coordinated Observation Days is to start no later than 1300 UT on the indicated day and stop not before 2000 UT the ending day. That means that an experiment scheduled for 1 day, actually runs for minimum 31 hours. Depending on local setups, it is recommended to extend the runs around the core hours to be sure to have the systems up at full power during the selected periods.
In the following table, columns 1 and 2 give the UT start dates of the experiments, column 3 lists the lengths of the experiments, column 4 shows the dates of new moon, and column 5 lists the experiment titles. See special notes associated with each World Day period.
2011 Incoherent Scatter Coordinated Observation Days
| ||||||
| Month | Starting Day |
Observation Length (days) |
New Moon | Experiment | ||
| January | 4 | |||||
| February | 1 | 3 | 2 | Synoptic | ||
| March | 21 | 2 | 4 | Meteors | ||
| April | 3 | |||||
| May | 3 | |||||
| June | 1 | |||||
| July | 1,30 | |||||
| August |
1 | 10 | 28 | Planetary Waves | ||
| September |
21 | 2 | 27 | Meteors | ||
| October | 26 | |||||
| November | 28 |
3 |
25 | Synoptic | ||
| December | 24 | |||||
| Total | 20 | Total 515 hours...see note 1 | ||||
| NOTES: 1: With start/stop times of 1300/2000 UT: 20*24h+5*7h=515h | ||||||
| Schedule last updated: Thursday, 26 August 2010 | ||||||
Real-Time Data Links (when available) | ||||||
| Jicamarca | Arecibo | Millstone Hill | Sondrestrom | PFISR | RISR-N | EISCAT |
| Kharkov | Irkutsk | MU | SuperDARN | |||
Send comments, questions and proposals for the World Day schedule to Ingemar Häggström or Mary McCready
World Day Facts
Establishing "World Day" schedules for coordinating the operations of the incoherent scatter radars around the world is one of the activities of the Incoherent Scatter Working Group (ISWG) of Commission G of URSI. These schedules are published yearly as part of the International Geophysical Calendar. Here are some of the facts about world days:- World Days (WD) provide for coordinated operations of two or more of the incoherent scatter radars (ISRs) for some common scientific objective. (Experiments that require only 1 UAF should be set up separately and directly with those in charge of that UAF.)
- World Days should be scattered throughout the calendar year.
- World Day data is to be promptly submitted to the CEDAR database and/or made available through other online databases as appropriate.
Procedures for requesting World Day experiments
Instructions and guidlines for submitting World Day proposals are available at: RequestingWD.doc.A sample proposal for requesting special World Days will be available at: http://people.ece.cornell.edu/wes/URSI_ISWG/SampleWDproposal.htm.
Notes on World Day observations proposed for 2011
Meteors: Global Measurements of the Meteor Input Function
Principle Investigator: Asta Pellinen-WannbergCo-Investigators: Csilla Szasz, Johan Kero, David Meisel, Ingemar Häggström
Key Objectives:
- To study the sporadic meteor distribution throughout the hemisphere wherever there are HPLA radars
- Cover the vernal and autumnal equinoxes 2011
- To study sporadic E layer fluctuations not influenced by strong meteor flux variations
Need for Simultaneous Data: Available optical, lidar etc instruments at the different radar sites to be operated
Planetary waves: Investigation of planetary-scale waves in the ionosphere
Principle Investigator: Scott EnglandCo-Investigators: Qihou Zhou and Guiping Liu
Point Person: Qihou Zhou
Key Objectives:
- Measure the neutral wind throughout the MLT region during periods of both planetary waves and strong non-migrating tides in the neutral atmosphere.
- Measure the response of the F-region ionosphere to atmospheric waves (global) and during the same time period.
- Examine the mechanism responsible for modulating the global- scale structure of the ionosphere at low and middle latitudes.
Secondary Parameters to Measure: Electron and ion temperatures and densities from lowest possible altitude throughout the F-region.
Need for Simultaneous Data: It is highly desirable to measure the wind and temperature parameters simultaneously at different geographic locations to establish the latitudinal structure of the waves present throughout the lower thermosphere. This can be compared to the more numerous observations at lower altitudes.
Participant Duties: Scott England (PI) will coordinate the analysis of the ISR and other datasets to identify wave signatures common to each and assess the impact of waves on the ionosphere. Qihou Zhou (Point Person) will coordinate the experiments to ensure proper modes are used at each UAF and will provide the wind and temperature inversions required. Giuping Liu will analyze COSMIC-GPS data taken prior to and during the ISR observational period.
Synoptic:
These synoptic experiments are intended to emphasize wide coverage of the F-region, with some augmented coverage of the topside or E-region to fill in areas of the data bases that have relatively little data.Contact: Jan Sojka, Ingemar Häggström.
