Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-25T12:01:37Z ipy Search: Parameters|SUN-EARTH INTERACTIONS|SOLAR ENERGETIC PARTICLE PROPERTIES http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 9 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NICT_IONOSONDE_OBS Ionospheric Vertical Sounding 40.0,-69.0,40.0,-69.0 1956-01-01T00:00:00Z T00:00:00Z 2012-04-16T04:00:00Z Virtual height profile of ionospheric electron density at Syowa Station, East Antarctica http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1246 Investigations of Space Weather and the Mesosphere using the TIGER Radar 110.0,-55.0,160.0,-42.0 1999-11-01T00:00:00Z 2010-03-31T00:00:00Z 2012-01-17T05:00:00Z The Tasman International Geospace Environment Radar (TIGER) is an over-the-horizon radar that locates ionospheric structures in the region between Tasmania and Antarctica, measuring their velocities. ... http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_527 Observatory Operations - Riometer and Magnetometer Data from the Australian Antarctic Territory and Riometer Data from Macquarie Island 111.0,-66.0,111.0,-66.078.0,-68.0,78.0,-68.063.0,-67.0,63.0,-67.0158.0,-54.0,158.0,-54.0 1989-01-17T00:00:00Z T00:00:00Z 1988-02-16T00:00:00Z T00:00:00Z 1989-12-08T00:00:00Z T00:00:00Z 1987-10-11T00:00:00Z T00:00:00Z 2012-01-10T05:00:00Z An analogue data acquisition system (ADAS), designed to collect time-stamped, time series data from any analogue signal is currently used to log data from the riometer, magnetic pulsations and fluxgate ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]HMO-PSWS_GISTM_MAR_GOG_SNA HMO-PSWS GPS Ionospheric Scintillation and Total Electron Content Monitoring on Marion Island, Gough Island, and at SANAE IV, Antarctica -18.0,-83.0,46.0,-35.0 2007-04-05T00:00:00Z T00:00:00Z 2008-09-22T00:00:00Z T00:00:00Z 2007-01-14T00:00:00Z T00:00:00Z 2011-07-22T04:00:00Z Ionospheric Scintillation observations at GPS (L-band) frequencies, as measured with the Novatel GSV4004B GPS Ionospheric and Total Electron Content Monitor (GISTM). The data format is proprietary ... http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]Riometer_SHIRE SHIRE Imaging Riometer, Davis, Antarctica 45.0,-90.0,160.0,-65.0 1995-10-31T00:00:00Z T00:00:00Z 2010-12-22T05:00:00Z Mapping 38.2 MHz cosmic noise/particle precipitation in [2].7 x 7 beams 12.8 deg, ~200 x 200km at 90km altitude. A Southern Hemisphere Imaging Riometer Experiment. A joint project of the Australian ... http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_43 O(1S) Effective Lifetimes 62.873,-67.602,62.873,-67.602158.86,-54.619,158.86,-54.619 1992-09-01T00:00:00Z 1994-03-31T00:00:00Z 2010-07-16T04:00:00Z Metadata record for data from ASAC Project 43 See the link below for public details on this project. From the abstract of the referenced paper: Intensity time-series ... http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_949 Ionospheric dynamics in the polar cap 100.0,-70.0,120.0,-63.0 1993-02-07T00:00:00Z T00:00:00Z 2009-08-14T04:00:00Z The aim is to measure structure and drift in polar-cap ionospheric layers in order to test current theories and models, identify unexplained behaviour and develop theoretical explanations. The polar ... http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1121 Mapping the GPS total electron content and scintillation activity at southern higher latitudes during high sunspot numbers 110.52,-66.28,110.52,-66.28158.86,-54.619,158.86,-54.61977.96,-68.57,77.96,-68.57 1994-01-01T00:00:00Z 2002-12-31T00:00:00Z 2008-04-10T04:00:00Z Metadata record for data from ASAC Project 1121 See the link below for public details on this project. ---- Public Summary from Project ---- Improved knowledge on the state of the ionosphere in the ... http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_527_allsky Observatory Operations - All Sky Imager Data from the Australian Antarctic Territory and Macquarie Island 78.0,-68.0,78.0,-68.0111.0,-66.0,111.0,-66.063.0,-67.0,63.0,-67.0158.0,-54.0,158.0,-54.0 2001-03-01T00:00:00Z T00:00:00Z 2008-04-10T04:00:00Z All Sky Imager Systems (ASIS) are deployed at Casey, Davis, Macquarie island and Mawson. These systems are autonomous data collection systems which record All Sky Imager data during periods of darkness ...