Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-23T08:37:11Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 52 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSF-ANT10-43621 -180.0,-79.5,180.0,-54.5 2011-06-01T00:00:00Z 2013-05-31T00:00:00Z 2013-04-18T04:00:00Z

The auroral electrojet index (AE) is used as an indicator of geomagnetic activity at high latitudes representing the strength of auroral electrojet currents in the Northern polar ionosphere. A similar ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.sme 2012-07-10T04:00:00Z

Solar Magnetic Eruptions (SME), such as Coronal Mass Ejections and Solar Flares, and their impact on Earth's space environment are the target of this Space Weather research.Solar Magnetic Eruptions ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K069_1989_2012_NZ_1 166.7625,-77.9175,166.7625,-77.9175 1990-01-01T00:00:00Z T00:00:00Z 2012-06-15T04:00:00Z

A magnetometer and data recording system was installed and began recording hydromagnetic and ion cyclotron waves (geomagnetic pulsations) propagating into the high latitude cusp and polar cap regions ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NICT_AURORAL_RADAR 40.0,-69.0,40.0,-69.0 1966-03-13T00:00:00Z T00:00:00Z 2012-04-16T04:00:00Z

Radio auroral echoe observed with auroral radar at Syowa Station.

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]JCADM_US_MAG_AGO -20.4,-80.7,-20.4,-80.73.0,-81.5,3.0,-81.5-23.9,-84.4,-23.9,-84.4 1997-01-01T00:00:00Z 2003-12-07T00:00:00Z 1996-01-01T00:00:00Z 2003-12-07T00:00:00Z 1999-01-01T00:00:00Z 2003-12-07T00:00:00Z 2011-07-28T04:00:00Z

Search coil magnetometer data are primarily used to study waves and transient variations in Earth's magnetic field in the ULF (Ultra-Low-Frequency) range, from ~0.001 Hz to ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]HMO-PSWS_PPM_SNAOVH1 -2.83058,-71.67443,-2.83058,-71.67443 2008-01-08T00:00:00Z T00:00:00Z 2011-07-22T04:00:00Z

Absolute magnetic field studies at SANAE IV, Antarctica, are conducted with a GSM-19W high sensitivity proton magnetometer sensor, using the Overhauser effect to detect the absolute magnetic field. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]HMO-PSWSS_NADSFS1 -2.82993,-71.67464,-2.82993,-71.67464 2008-01-17T00:00:00Z T00:00:00Z 2011-07-22T04:00:00Z

Vector magnetic field studies at SANAE IV, Antarctica, are conducted with a FGE suspended magnetometer, manufactured by the Danish Meteorological Institute. It is a In Situ land based application ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WIND_WAVES 1994-11-01T00:00:00Z T00:00:00Z 2011-03-11T05:00:00Z

The main purpose of the Wind spacecraft is to measure the incoming solar wind, magnetic fields and particles, although early on it will also observe the Earth's foreshock region. Wind, together with ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00582 -180.0,-90.0,180.0,90.0 1967-01-01T00:00:00Z T00:00:00Z 2011-03-02T05:00:00Z

ABSTRACT: Satellites monitor in situ the effect of the Sun on the near-Earth environment. The GOES and SOLRAD satellites orbited at geostationary levels, about 22,000 miles above the Earth's surface. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]IMP8_MAG 1973-10-30T00:00:00Z T00:00:00Z 2011-03-01T05:00:00Z

IMP-8 (IMP-J) was launched by NASA on October 26, 1973 to measure the magnetic fields, plasmas, and energetic charged particles (e.g., cosmic rays) of the Earth's magnetotail and ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00038 -180.0,-90.0,180.0,90.0 1974-07-01T00:00:00Z T00:00:00Z 2011-02-28T05:00:00Z

ABSTRACT: Three orthogonal flux-gate magnetometer elements, (spinning twin fluxgate magnetometer prior to GOES-8) provide magnetic field measurements in three mutually perpendicular components: HP, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]INCOHERENT_SCATTER_RADAR -76.0,-12.0,-76.0,-11.0-67.0,18.0,-66.0,19.0137.0,34.0,136.0,35.0-72.0,42.0,-71.0,43.00.0,44.0,3.0,48.0-148.0,65.0,-147.0,66.020.0,67.0,21.0,68.0-27.0,67.0,-26.0,68.0-51.0,67.0,-51.0,67.0 1966-01-01T00:00:00Z T00:00:00Z 2011-01-31T05:00:00Z

The Coupling, Energetics, and Dynamics of Atmospheric Regions (CEDAR) at the National Center for Atmospheric Research/High Altitude Observatory (NCAR/HAO) incoherent-radar data base was established ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEDAR_NCAR_HAO -180.0,-90.0,180.0,90.0 1966-01-01T00:00:00Z T00:00:00Z 2010-09-22T04:00:00Z

The Coupling, Energetics, and Dynamics of Atmospheric regions (CEDAR) is a program sponsored by the National Science Foundation (NSF) designed to enhance the capability of ground-based instruments ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEDAR_GEO_INDICES -180.0,-90.0,180.0,90.0 1966-01-01T00:00:00Z T00:00:00Z 2010-09-22T04:00:00Z

The Coupling, Energetics, and Dynamics of Atmospheric Regions (CEDAR) Data Base has some files of geophysical indices. These include Dst, Kp, ap, AP, solar 10.7 cm flux, sunspot number, AE indices, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSF-ANT08-40398 -180.0,-90.0,180.0,-75.0 2009-09-01T00:00:00Z 2011-08-31T00:00:00Z 2010-08-12T04:00:00Z

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The PENGUIn team will continue investigating in depth a multi-scale electrodynamic system that comprises ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]PENGUIn_AGO_Search_Coil 129.61,-83.86,129.61,-83.86-46.38,-85.67,-46.38,-85.6728.59,-82.75,28.59,-82.7596.76,-82.01,96.76,-82.01123.52,-77.24,123.52,-77.24130.03,-69.51,130.03,-69.51 1994-01-11T00:00:00Z T00:00:00Z 1993-12-22T00:00:00Z T00:00:00Z 1995-01-26T00:00:00Z T00:00:00Z 1994-01-27T00:00:00Z 2001-01-21T00:00:00Z 1996-01-17T00:00:00Z T00:00:00Z 1997-05-15T00:00:00Z 2001-11-15T00:00:00Z 2010-08-10T04:00:00Z

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The PENGUIn team will continue investigating in depth a multi-scale electrodynamic system that comprises ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NSF-ANT08-39858 -1.0,-85.0,103.0,-77.0 2009-09-01T00:00:00Z 2013-08-31T00:00:00Z 2010-07-29T04:00:00Z

'This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).' The solar wind - magnetosphere - ionosphere system and the space weather phenomena it controls ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]US_JCADM_MAG_SP -16.3,-75.6,-16.3,-75.6-180.0,-90.0,-180.0,-90.0166.7,-77.9,166.7,-77.9-50.7,67.0,-50.7,67.0-68.6,63.8,-68.6,63.8 2005-01-01T00:00:00Z T00:00:00Z 1982-01-01T00:00:00Z T00:00:00Z 1985-01-01T00:00:00Z T00:00:00Z 1984-01-01T00:00:00Z T00:00:00Z 1993-01-01T00:00:00Z T00:00:00Z 2010-07-28T04:00:00Z

Search coil magnetometer data are primarily used to study waves and transient variations in Earth's magnetic field in the ULF (Ultra-Low-Frequency) range, from ~0.001 Hz to 5 Hz. Naturally-observed ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]IPST_UMD_ANTARCTIC_IONOS -0.0,-90.0,-0.0,-90.0166.67,-77.85,166.67,-77.85 1986-01-01T00:00:00Z 2001-01-01T00:00:00Z 2010-07-07T04:00:00Z

The projects that operate from instrumentation at South Pole Station, and at the Arrival Heights Laboratory at McMurdo Station, examine natural phenomena occurring in the earth's atmosphere, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SIENA_ANTARCTIC_IONOS -0.0,-90.0,-0.0,-90.0166.67,-77.85,166.67,-77.85 1986-01-01T00:00:00Z 2001-01-01T00:00:00Z 2010-07-07T04:00:00Z

The projects that operate from instrumentation at South Pole Station, and at the Arrival Heights Laboratory at McMurdo Station, examine natural phenomena occurring in the earth's atmosphere, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SAMBA-data 2002-04-01T00:00:00Z T00:00:00Z 2010-07-02T04:00:00Z

Ground magnetometer data from the 12 stations of the South American Meridional B-field Array (SAMBA) covering magnetic latitudes from near equatorial to mid-latitudes and with one auroral station. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[BAS_AEDC]GB-NERC-BAS-AEDC-00263 -68.1167,-88.025,95.9756,-64.8167 2001-12-01T00:00:00Z T00:00:00Z 2010-04-27T04:00:00Z

The British Antarctic Survey holds magnetic data measuring the plasmaspheric mass loading on magnetic field lines in Antarctica. The network of Low Power Magnetometer instruments consists of permanent ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SPDS-General -180.0,-90.0,180.0,90.0 2009-08-28T04:00:00Z

The Space Physics Data System (SPDS) ( http://spdf.gsfc.nasa.gov/ ) serves the four science disciplines encompassed within the programs of the NASA Space Physics Division, namely: ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_UARPE2VMAGAC_V001 -180.0,-57.15,180.0,57.15 1991-09-26T00:00:00Z 2005-08-23T00:00:00Z 2009-08-21T04:00:00Z

The Particle Environment Monitor (PEM) on NASA's Upper Atmosphere Research Satellite (UARS) measures the type, amount, energy, and distribution ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_UARPE2VMAGDC_V001 -180.0,-57.15,180.0,57.15 1991-09-15T00:00:00Z 2005-08-23T00:00:00Z 2009-08-21T04:00:00Z

The Particle Environment Monitor (PEM) on NASA's Upper Atmosphere Research Satellite (UARS) measures the type, amount, energy, and distribution ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_UARPE3AT_V001 -180.0,-80.0,180.0,80.0 1991-10-01T00:00:00Z T00:00:00Z 2009-08-21T04:00:00Z

The Particle Environment Monitor (PEM) on NASA's Upper Atmosphere Research Satellite (UARS) measures the type, amount, energy, and distribution of charged particles injected ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_UARPE3TP_V001 -180.0,-80.0,180.0,80.0 1991-10-01T00:00:00Z T00:00:00Z 2009-08-21T04:00:00Z

The Particle Environment Monitor (PEM) on NASA's Upper Atmosphere Research Satellite (UARS) measures the type, amount, energy, and distribution of charged particles injected ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K002_1969_1970_NZ_2 166.75,-77.85,166.75,-77.85 2009-06-30T04:00:00Z

The Polar Ionosphere Beacon Satellite Program, S-66, was for the purpose of ionospheric research. The S-66 program aimed to make possible a synoptic study of the ionosphere as it varies in time and ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SEL-01 -180.0,-90.0,180.0,90.0 1990-01-01T00:00:00Z T00:00:00Z 2009-06-11T04:00:00Z

The NOAA Space Environment Laboratory collects, evaluates, and distributes data relating to space plasma events, solar activity, and cosmic ray particle activity on a nearly real-time basis. Space ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K069_1989_2008_NZ_1 166.7625,-77.9175,166.7625,-77.9175 1990-01-01T00:00:00Z T00:00:00Z 2009-05-11T04:00:00Z

A magnetometer and data recording system was installed and began recording hydromagnetic and ion cyclotron waves (geomagnetic pulsations) propagating into the high latitude cusp and polar cap regions ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]EQUATOR-S 1997-12-02T00:00:00Z T00:00:00Z 2009-04-14T04:00:00Z

EQUATOR-S is a low-cost mission designed to study the Earth's equatorial magnetosphere out to distances of 67000 km and it forms an element of the closely-coordinated ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ACE_MAG_LEVEL2 1997-08-25T00:00:00Z T00:00:00Z 2009-03-30T04:00:00Z

The Magnetic Field Experiment (MAG) consists of twin vector fluxgate magnetometers controlled by a common CPU. The sensors are mounted on booms extending 4.19 meters from the center of ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ACE_RTSW 1997-08-25T00:00:00Z T00:00:00Z 2009-03-30T04:00:00Z

Advanced Composition Explorer (ACE) Real-Time Solar Wind (RTSW) Data from NOAA's Space Environment Center (SEC) provides up to an hour's advance warning of unusual solar activity, such ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SPA-MAG 1980-01-01T00:00:00Z 2008-09-26T00:00:00Z 2008-10-01T04:00:00Z

Slow variations of the terrestrial magnetic field are measured with the fluxgate magnetometer (DC to the Nyquist frequency of 0.5 Hz, at 1-Hz sampling rate); the sensor itself comprises three small ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ENVIRONET -180.0,-90.0,180.0,90.0 2008-05-29T04:00:00Z

The National Space Science Data Center (NSSDC) at NASA/Goddard Space Flight Center has many space physics and space weather models available on: - Gavitation and Geopotential Models - Atmospheric ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]IMAGE 2000-03-25T00:00:00Z T00:00:00Z 2008-05-27T04:00:00Z

The Imager for Magnetosphere-to-Aurora Global Exploration (IMAGE) mission produced the first comprehensive global images of the plasma populations in the inner magnetosphere. IMAGE data are archived ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NASA_POLAR 1996-02-24T00:00:00Z T00:00:00Z 2008-05-09T04:00:00Z

The Polar spacecraft was launched on February 24, 1996, to obtain data from both high- and low-altitude perspectives of this active region of geospace. High above the poles the particles of the solar ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WILCOX_SOLAR_ATLAS 1985-03-01T00:00:00Z T00:00:00Z 2008-04-25T04:00:00Z

The Wilcox Solar Observatory began daily observations of the Sun's global magnetic field in May 1975, with the goal of understanding changes in the Sun and how those changes affect the Earth; this ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CNNADC_S2000_S_DPS4_ZS 76.6,-69.6,76.6,-69.6 2001-03-05T00:00:00Z 2002-01-01T00:00:00Z 2007-08-21T04:00:00Z

The DPS-4, developed by the University of Masachusetts at Lowell Center for Atmospheric Research (ULCAR), is a pulse HF Doppler radar controlled by a computer. It can measure the amplitude, phase, ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CEDAR_MODELS -180.0,-90.0,180.0,90.0 2006-10-13T04:00:00Z

The Coupling, Energetics, and Dynamics of Atmospheric Regions (CEDAR) Data Base at NCAR/HAO holds information on theoretical models and source code for several empirical models. Theoretical models ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_OFR_2006_1136 -159.19,58.3,-155.45,60.06 2005-09-01T00:00:00Z 2005-10-22T00:00:00Z 2006-06-15T04:00:00Z

This is a USGS Open-File-Report for the preliminary release of aeromagnetic data collected in the Dillingham Area of Southwest Alaska and associated contractor reports. An airborne high-resolution ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]FAST 1996-08-21T00:00:00Z T00:00:00Z 2005-10-31T05:00:00Z

The Fast Auroral SnapshoT (FAST), the second mission in NASA's Small Explorer Satellite Program (SMEX), is a satellite designed to study Earth's aurora. This highly successful spacecraft has helped ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Ionospheric_vertical_sounding 164.1,-74.7,164.1,-74.7 1993-11-01T00:00:00Z 2002-01-01T00:00:00Z 2005-08-01T04:00:00Z

Ionospheric observations, using radio techniques, are an important part of the aeronomic studies that may be carried out in polar zones where the peculiarity of the physical phenomena, due to the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WIND_MFI 1994-11-01T00:00:00Z T00:00:00Z 2005-08-01T04:00:00Z

The main purpose of the Wind spacecraft is to measure the incoming solar wind, magnetic fields and particles, although early on it will also observe the Earth's foreshock region. Wind, together with ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WIND_SWE 1994-11-01T00:00:00Z T00:00:00Z 2005-08-01T04:00:00Z

The main purpose of the Wind spacecraft is to measure the incoming solar wind, magnetic fields and particles, although early on it will also observe the Earth's foreshock region. Wind, together with ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CNDA-ESP_ANT95-0094-CO3 -61.0,-63.0,-61.0,-63.0 1996-01-01T00:00:00Z T00:00:00Z 2005-08-01T04:00:00Z

In English: The main scientific objectives of the campaign were: To create a data base indispensable to the reduction of geomagnetic surveys. To determine the geologic structures these surveys require ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CLUSTER-II 2000-07-16T00:00:00Z T00:00:00Z 2005-07-29T04:00:00Z

Cluster II is part of an international collaboration to investigate the physical connection between the Sun and Earth. Flying in a tetrahedral (triangular pyramid) formation, the four spacecraft collect ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CRRES 1990-07-25T00:00:00Z 1991-10-12T00:00:00Z 2005-07-29T04:00:00Z

The Combined Release and Radiation Effects Satellite (CRRES) was launched into a geosynchronous transfer orbit (GTO) for a nominal three-year mission to investigate fields, plasmas, and energetic ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NASA_GEOTAIL 1992-07-24T00:00:00Z T00:00:00Z 2005-07-29T04:00:00Z

The GEOTAIL mission is a collaborative project undertaken by the Institute of Space and Astronautical Science (ISAS) and the National Aeronautics and Space Administration (NASA). Its primary objective ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]IMP8_MIT 1973-10-30T00:00:00Z T00:00:00Z 2005-07-29T04:00:00Z

IMP-8 (IMP-J) was launched by NASA on October 26, 1973 to measure the magnetic fields, plasmas, and energetic charged particles (e.g., cosmic rays) of the Earth's magnetotail and magnetosheath and ...