St. Croix
T he Imaging Radar Interferometer on St. Croix is located close to the St. Croix campus of the University of the Virgin Islands. The instrument has the feature of looking perpendicular to B over the field of view of Arecibo.
The radar is used to observe E region field-aligned plasma density irregularities associated with sporadic E ionization layers in the ionosphere. The irregularities are produced by plasma instabilities and are indicative of intermediate-scale structuring in the layers. The structuring, in turn, appears to result from neutral atmospheric waves and instabilities in the mesosphere/lower thermosphere. Aperture synthesis radar imaging allows us to observe the structuring and to compare it with observations made with the Arecibo incoherent scatter radar, resonace lidar , and Boston University imager .
The radar was deployed as part of a joint project involving Clemson University, Cornell University, and the University of the Virgin Islands. Preliminary results from a campaign coducted in the fall of 2008 are tabulated below.
| UT Date | CSR RTI | images | images | images | ISR linefeed | ISR gregorian |
|---|---|---|---|---|---|---|
| Jun. 17 2008 | s080617.pdf | s080617.mpg | ||||
| Jul. 4 2008 | s080704.pdf | s080704.mpg | ||||
| Jul. 28 2008 | s080728.pdf | s080728.mpg | s080728.mpg | |||
| Sep. 26 2008 | s080926.pdf | s080926.mpg | l080926.pdf | g080926.pdf | ||
| Sep. 27 2008 | s080927.pdf | s080927.mpg | l080927.pdf | g080927.pdf | ||
| Sep. 28 2008 | s080928.pdf | s080928.mpg | l080928.pdf | g080928.pdf | ||
| Sep. 29 2008 | s080929.pdf | s080929.mpg | s080929-2.mpg | l080929.pdf | g080929.pdf | |
| Sep. 30 2008 | s080930.pdf | s080930.mpg | l080930.pdf | g080930.pdf | ||
| Oct. 1 2008 | s081001.pdf | s081001.mpg | s081001-2.mpg | l081001.pdf |
Data for the Summer 2009 campaign are here:
| UT Date | CSR RTI | images | images | images | ISR linefeed | ISR gregorian |
|---|---|---|---|---|---|---|
| Jul. 17 2009 | s090717.pdf | |||||
| Jul. 19 2009 | s090719.pdf | s090719-1.mpg | s090719-2.mpg | |||
| Jul. 22 2009 | s090722.pdf | s090722-1.mpg | s090722-2.mpg | s090722-3.mpg | ||
| s090722-4.mpg | s090722-5.mpg |
Data for the Summer 2010 campaign are here:
| UT Date | CSR RTI | images | images | images | ISR linefeed | ISR gregorian |
|---|---|---|---|---|---|---|
| Jul. 2 2010 | s100702.pdf | s100702.mpg | s100702-2.mpg | 20100702-l.pdf | 20100702-g.pdf | |
| Ju3. 3 2010 | s100703.pdf | 20100703-l.pdf | 20100703-g.pdf | |||
| Jul. 4 2010 | s100704.pdf | s100704-0.mpg | s100704-1.mpg | s100704-2.mpg | s100704-3.mpg | s100704-4.mpg | 20100704-l.pdf | 20100704-g.pdf |
| Jul. 5 2010 | s100705.pdf | 20100705-l.pdf | 20100705-g.pdf | |||
| Jul. 6 2010 | s100706.pdf | 20100706-l.pdf | 20100706-g.pdf | |||
| Jul. 7 2010 | s100707.pdf | s100708.mpg | 20100707-l.pdf | 20100707-g.pdf | ||
| Jul. 8 2010 | s100708.pdf | 20100708-l.pdf | 20100708-g.pdf | |||
| Jul. 11 2010 | s100711.pdf | |||||
| Jul. 12 2010 | s100712.pdf |
Summer 2011 campaign:
| UT Date | CSR RTI | images | images | ISR linefeed | ISR gregorian |
|---|---|---|---|---|---|
| Aug. 2 | rti20110802.pdf | s110802.mpg | p20110802l.pdf | p20110802g.pdf | |
| Aug. 3 | rti20110803.pdf | s110803.mpg | p20110803l.pdf | p20110803g.pdf | |
| Aug. 4 | rti20110804.pdf | p20110804l.pdf | p20110804g.pdf | ||
| Aug. 5 | rti20110805.pdf | p20110805l.pdf | p20110805g.pdf | ||
| Aug. 6 | rti20110806.pdf | s110806-1.mpg | s110806-2.mpg | p20110806l.pdf | p20110806g.pdf |
| Aug. 7 | rti20110807.pdf | s110807-0.mpg | s110807-1.mpg | p20110807l.pdf | p20110807g.pdf |
| Aug. 7 | s110807-2.mpg | s110807-3.mpg | |||
| Aug. 7 | s110807-4.mpg | ||||
| Aug. 8 | rti20110808.pdf | s110808.mpg | p20110808l.pdf | p20110808g.pdf | |
| Aug. 9 | rti20110809.pdf | s110809.mpg | p20110809l.pdf | p20110809g.pdf | |
| Aug. 10 | rti20110810.pdf | s110810.mpg | p20110810l.pdf | p20110810g.pdf | |
| Aug. 26 | dpaug26ch.pdf | dpaug26gr.pdf | |||
| Aug. 27 | dpaug27ch.pdf | dpaug27gr.pdf | |||
| Aug. 29 | dpaug29ch.pdf | dpaug29gr.pdf |
Summer 2012 campaign:
| UT Date | CSR RTI | images | images | ISR linefeed | ISR gregorian |
|---|---|---|---|---|---|
| Aug. 10 | 10aug2012line.pdf | ||||
| Aug. 11 | 11aug2012line.pdf | ||||
| Aug. 12 | 12aug2012line.pdf | ||||
| Aug. 13 | 13aug2012line.pdf | 13aug2012greg.pdf | |||
| Aug. 14 | 14aug2012line.pdf | 14aug2012greg.pdf | |||
| Aug. 15 | 15aug2012line.pdf | 15aug2012greg.pdf | |||
| Aug. 16 | 2012aug16.pdf | s120816.mpg | 16aug2012line.pdf | 16aug2012greg.pdf | |
| Aug. 17 | 17aug2012line.pdf | 17aug2012greg.pdf |
Spring 2013 campaign:
| UT Date | CSR RTI | images | images | ISR linefeed | ISR gregorian |
|---|---|---|---|---|---|
| Jan. 8 | l130108.pdf | g130108.pdf | |||
| l130108bfit.pdf | g130108bfit.pdf | ||||
| Jan. 12 | r130112.pdf | s130112a.mpg | s130112.mpg | l130112.pdf | |
| Jan. 13 | r130113.pdf | s130113.mpg | l130113.pdf | ||
| Jan. 14 | l130114fit.pdf | ||||
| Feb. 7 | r130207.pdf | s130207.mpg | s130207a.mpg | l130206.pdf | g130206.pdf |
| Feb. 8 | s130207a.mpg | l130207.pdf | g130207.pdf |
Summer/fall 2013 campaigns:
| UT Date | CSR RTI | images | images | ISR linefeed | ISR gregorian |
|---|---|---|---|---|---|
| Jul. 6 | r130706.pdf | r130706.mpg | r130706a.mpg | l130706.pdf | |
| Jul. 7 | r130707.pdf | l130707.pdf | |||
| Jul. 8 | r130708.pdf | r130708.mpg | l130708.pdf | g130708.pdf | |
| Jul. 9 | r130709.pdf | l130709.pdf | g130709.pdf | ||
| Jul. 10 | r130710.pdf | r130710.mpg | l130710.pdf | g130710.pdf | |
| Jul. 11 | r130711.pdf | r130711.mpg | r130711a.mpg | l130711.pdf | g130711.pdf |
| Jul. 12 | r130712.pdf | r130712.mpg | |||
| Sep. 4 | r130904.pdf | l130904.pdf | g130904.pdf | Sep. 5 | l130905.pdf | g130905.pdf | Sep. 6 | l130906.pdf | g130906.pdf |
| Nov. 4 | l131104.pdf | g131104.pdf | Nov. 5 | l131105.pdf | g131105.pdf | Nov. 6 | l131106.pdf | g131106.pdf | Nov. 7 | l131107.pdf | g131107.pdf |
2014 campaigns:
| UT Date | CSR RTI | images | images | ISR linefeed | ISR gregorian |
|---|---|---|---|---|---|
| Apr. 30 | r140430.pdf | s140501a.mpg | s140501b.mpg | ||
| Jul. 23 | l140723.pdf | g140723.pdf | |||
| Jul. 24 | l140724.pdf | g140724.pdf | |||
| Jul. 25 | l140725.pdf | g140725.pdf | |||
| Jul. 26 | l140726.pdf | g140726.pdf | |||
| Jul. 27 | l140727.pdf | g140727.pdf | |||
| Jul. 28 | r140728.pdf | s140729.mpg | l140728.pdf | g140728.pdf | |
| Aug. 14 | r140814.pdf | r140814a.mpg | r140814b.mpg | ||
| Aug. 19 | r140819.pdf | r140820a.mpg | r140820b.mpg | ||
| Sep. 11 | l140911.pdf | g140911.pdf |
2016 campaigns:
| UT Date | CSR RTI | images | images | images | ISR linefeed | ISR gregorian |
|---|---|---|---|---|---|---|
| Jul. 30 | r160730.pdf | s160730-1.mpg | s160730-2.mpg | s160730-3.mpg | l160730.pdf | g160730.pdf | s160730-4.mpg | s160730-5.mpg |
| Jul. 31 | l160731.pdf | g160731.pdf | ||||
| Aug. 1 | r160801.pdf | s160801.mpg | l160801.pdf | g160801.pdf | ||
| Aug. 2 | r160802.pdf | s160802-1.mpg | s160802-2.mpg | s160802-3.mpg | l160802.pdf | g160802.pdf |
| Aug. 3 | r160803.pdf | l160803.pdf | g160803.pdf | |||
| Aug. 4 | r160804.pdf | s160804.mpg | l160804.pdf | g160804.pdf | ||
| Nov. 2 | r161103.pdf | l161102.pdf | g161102.pdf |
CADI ionosonde
Arecibo ionograms taken during the campaigns of 2008--2012 can be viewed by accessing this link.Gallery
These are some of the sights of the radar and the island, as photographed by the Cornell graduate student Eliana Nossa.