Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-06-20T04:39:30Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 28 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SDO_DIF_PLACEHOLDER 2012-02-01T05:00:00Z

[Text Source: The Solar Dynamics Observatory (SDO) Project Home page, http://sdo.gsfc.nasa.gov/mission/about.php ] SDO: The Solar Dynamics Observatory is the first ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]WIND_EPACT -180.0,-90.0,180.0,90.0 1994-11-01T00:00:00Z T00:00:00Z 2011-12-15T05:00:00Z

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]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]IMP8_LANL 1973-10-30T00:00:00Z T00:00:00Z 2009-08-27T04:00:00Z

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 ...

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]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]SOHO_COSTEP 1995-12-02T00:00:00Z T00:00:00Z 2008-05-29T04:00:00Z

COSTEP addresses scientific objectives related to the following phenomena: * Steady state processes in the solar atmosphere * Energy release and particle acceleration in the solar atmosphere ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]DE_WATS_1 -180.0,-90.0,180.0,90.0 1981-08-05T00:00:00Z 1983-02-18T00:00:00Z 2008-05-28T04:00:00Z

The Wind and Temperature (WATS) experiment on the Dynamics Explorer-2 (DE-2) spacecraft consists of a closed source neutral mass spectrometer with two rectangular baffles which are swept across the ...

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]SOHO_CELIAS 1995-12-02T00:00:00Z T00:00:00Z 2008-05-07T04:00:00Z

The CELIAS instrument is designed to study the composition of the solar wind (SW) and of solar and interplanetary energetic particles on SOHO. SOHO is a project of international cooperation between ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SOHO_ERNE 1995-12-02T00:00:00Z T00:00:00Z 2008-05-05T04:00:00Z

The Energetic and Relativistic Nuclei and Electron (ERNE) Sensor Unit (ESU) has two energetic particle sensors: LED and HED. ERNE will investigate the solar atmosphere by detecting charged particles ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CIRA_MODEL -180.0,-80.0,180.0,80.0 2006-10-16T04:00:00Z

The COSPAR International Reference Atmosphere (CIRA) provides empirical models of atmospheric temperature and densities as recommended by the Committee on Space Research (COSPAR). Since the early ...

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]WIND_SMS 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_3DP -180.0,-90.0,180.0,90.0 1994-11-01T00:00:00Z T00:00:00Z 2005-07-29T04:00:00Z

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]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_JHUCPME 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 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]IMP8_GSFC 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 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]IMP8_IOWA 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 ...

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 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]AD-ABC -180.0,-90.0,180.0,90.0 1963-12-19T00:00:00Z 1973-01-13T00:00:00Z 2005-07-28T04:00:00Z

This experiment was designed to determine nonsystematic changes of upper atmospheric density by conducting studies of the drag on a 3.6-m diameter, low-density sphere caused by short-term variations ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]HWM87_MODEL -180.0,-90.0,180.0,90.0 2005-07-28T04:00:00Z

The HWM87 is an empirical model of the horizontal neutral wind in the upper thermosphere analogous to the MSIS model for neutral temperature and density. It is based on wind data obtained from the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]MSIS_Model -180.0,-90.0,180.0,90.0 2005-07-28T04:00:00Z

The Mass-Spectrometer-Incoherent-Scatter (MSIS) model describes the neutral temperature and densities in the Upper Atmosphere (above about 100 km). MSIS-86 constitutes the upper part of the COSPAR ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]63-009A -180.0,-90.0,180.0,90.0 1963-04-04T00:00:00Z 1984-09-30T00:00:00Z 2005-07-28T04:00:00Z

NSSDC holds many data sets containing measurements of the structure, composition, and dynamics of the Earth's neutral atmosphere. The measurements are both in situ and remote. For details about searching ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]73-101A -180.0,-90.0,180.0,90.0 1973-12-16T00:00:00Z 1981-06-07T00:00:00Z 2005-07-28T04:00:00Z

Data collected by the Atmosphere Explorer C, D and E satellites are provided on one CD-ROM. The CD also includes data-related atmospheric/ionospheric/ magnetospheric models and software. The data ...