HR: 0800h
AN: SA31A-0364    [Abstracts]
TI: Extended Multiple High Latitude Incoherent Scatter Data Sets Incorporating High Quality Routine Calibration
AU: * van Eyken, A P
EM: tony.van.eyken@eiscat.se
AF: EISCAT Scientific Association, Headquarters, Box 164, Kiruna, 981 23 Sweden
AU: Stroemme, A
EM: anja.stromme@eiscat.se
AF: EISCAT Scientific Association, Box 432, Longyearbyen, 9171 Norway
AU: Rietveld, M
EM: mike@eiscat.uit.no
AF: EISCAT Scientific Association, Ramfjordmoen, Ramfjordbotn, 9027 Norway
AU: Westman, A
EM: assar.westman@eiscat.se
AF: EISCAT Scientific Association, Headquarters, Box 164, Kiruna, 981 23 Sweden
AU: Haggstrom, I
EM: Ingemar.Haggstrom@eiscat.com
AF: EISCAT Scientific Association, Headquarters, Box 164, Kiruna, 981 23 Sweden
AU: Markkanen, J
EM: Jussi.Markkanen@eiscat.sgo.fi
AF: EISCAT Scientific Association, Geophysical Observatory, Sodankyla, 99600 Finland
AB: Over the last two solar cycles the incoherent scatter radars of the EISCAT Scientific Association have made important contributions to the current understanding of the near Earth space environment. An accelerating trend over the last few years has been toward more continuous operation, and during September 2005, the tri-static EISCAT UHF system in northern Scandinavia and the EISCAT Svalbard radar (ESR) outside Longyearbyen, Svalbard, ran continuously as part of a 30-day coordinated worldwide incoherent scatter interval. These two long, high quality time series open up a range of new possibilities for the study of ionospheric dynamics, and magnetosphere-ionosphere coupling from sub-second plasma instabilities, up to multi-day tides. They are especially valuable in conjunction with similar data sets obtained by the Sondrestrom Radar, in Greenland, and the Millstone Hill radar in New England. Newly installed additional plasma line receivers at the EISCAT Svalbard Radar also allow the routine, accurate, calibration of the electron density measurements provided by the system - ensuring that the densities are absolute values, an important consideration in ionospheric modeling studies. The UHF data have also been careful calibrated using a locally sited Dynasonde together with plasma line measurements where available. The September 2005 run takes advantage of many of the unique features of the EISCAT systems, combining vector velocity measurements obtained from the tri-static EISCAT UHF system in the auroral zone with the EISCAT Svalbard Radar's multi-position ion and plasma line data in the polar cusp and cap. In this poster we will present example data from both the tri-static EISCAT UHF radar and the EISCAT Svalbard Radar, and show some examples of the range of phenomenon to be studied using such long runs.
DE: 2407 Auroral ionosphere (2704)
DE: 2441 Ionospheric storms (7949)
DE: 2447 Modeling and forecasting
DE: 2475 Polar cap ionosphere
DE: 2494 Instruments and techniques
SC: SPA-Aeronomy [SA]
MN: Fall Meeting 2005