Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-25T02:19:39Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 22 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NCAR_DS834.0 1749-01-01T00:00:00Z 1993-12-31T00:00:00Z 2013-05-23T04:00:00Z

This dataset contains daily and monthly sunspot numbers for various periods between 1749 and 1992 and daily and monthly solar flux from 1947. The most current data should be available from the National ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]G02201 -180.0,-90.0,180.0,90.0 1882-01-01T00:00:00Z 2007-12-31T00:00:00Z 2012-05-13T04:00:00Z

The International Polar Year Historical Data and Literature collection (formerly known as the Discovery and Access of Historic Literature from the IPYs (DAHLI) project) is an online data collection ...

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]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_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.G00581 -180.0,-90.0,180.0,90.0 1958-01-01T00:00:00Z T00:00:00Z 2011-03-07T05:00:00Z

ABSTRACT: Sudden ionospheric disturbances (SID) are caused by solar flare enhanced X-rays in the 1 to 10 angstrom range. Solar flares can produce large increases of ionization in the D-region of the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00546 -180.0,-90.0,180.0,90.0 1966-07-01T00:00:00Z 1979-08-01T00:00:00Z 2011-03-02T05:00:00Z

ABSTRACT: The National Geophysical Data Center holds a published series of observations of Jovian Dekametric Emission bursts recorded on the University of Colorado's Boulder radio spectrograph. Between ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00216 -180.0,-90.0,180.0,90.0 1947-02-14T00:00:00Z T00:00:00Z 2011-03-01T05:00:00Z

ABSTRACT: Scientists monitor the structure of the solar corona, the outer most regions of the Sun's atmosphere, using radio waves. The surface of the Sun is 6,000 degrees Kelvin, while the high corona ...

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?[CANADA-CGDI]FE00216 1947-02-14T00:00:00Z T00:00:00Z 2010-03-08T05:00:00Z

Solar radio flux is measured from the undisturbed solar surface, developing active regions on the sun and from short-lived enhancements above the daily level. Radio ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NASA_STEREO_DATA_PLACEHOLDER 2006-10-26T00:00:00Z T00:00:00Z 2009-08-03T04:00:00Z

[Source: NASA/GSFC Solar TErrestrial RElations Observatory (STEREO) home page, http://stereo.gsfc.nasa.gov/ ] STEREO (Solar ...

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]SOLAR_BASS2000 1995-10-01T00:00:00Z T00:00:00Z 2009-03-30T04:00:00Z

BASS 2000 has been initiated by the Institut National des Sciences de l'Univers together with the Midi-Pyrenees Observatory, the research group "solar and stellar magnetodynamic", the ...

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]CULGOORA 1950-01-01T00:00:00Z T00:00:00Z 2005-11-04T05:00:00Z

The Culgoora Solar Observatory is located 25 km west of the town of Narrabri, in north-west New South Wales. The observatory conducts continuous optical and radio observations of the sun every day ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]DCB2_SA-001 -180.0,-90.0,180.0,90.0 1957-07-01T00:00:00Z T00:00:00Z 2005-08-01T04:00:00Z

The catalog contains solar data received by World Data Center-B2 from 1957-1986. The geographic coordinates of stations are given in the stations-list. The observing instruments are described in the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ULYSSES 1990-10-06T00:00:00Z T00:00:00Z 2005-07-29T04:00:00Z

The primary mission of the Ulysses spacecraft was to characterize the heliosphere as a function of solar latitude. The periods of primary scientific interest is when Ulysses was at or higher than ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]JCADM_CDA_DNA_IONOSPHYSICS -67.103,-68.13,-67.103,-68.13-36.917,-77.967,-36.917,-77.967-34.627,-77.875,-34.627,-77.875 1963-01-01T00:00:00Z 1979-12-31T00:00:00Z 1980-01-01T00:00:00Z T00:00:00Z 1991-01-01T00:00:00Z T00:00:00Z 2005-07-28T04:00:00Z

Vertical incidence ionosoundings are being performed at the Belgrano and San Martmn stations. Ionospheric cosmic noise absorption is continuously recorded at the same stations, at a frequency of ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BIMA 1989-01-01T00:00:00Z T00:00:00Z 2005-07-28T04:00:00Z

The BIMA array is a 3-element radio interferometer. Flare observations at 86 GHz with high spatial resolution were obtained during the Flares 22/MAX'91 campaign of December 1991/Jnauary 1992. Times ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SRO-01 1962-09-29T00:00:00Z 1977-04-26T00:00:00Z 2005-07-28T04:00:00Z

Many spacecraft were launched from 1962 thru 1973 to record solar and cosmic radio bursts. The spacecraft carried receivers for various frequency ranges, and collected data intermittently over those ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_ATMO_VLF_SIGNALS -36.92,-77.97,-36.92,-77.97 1974-01-01T00:00:00Z 1990-12-31T00:00:00Z 2002-04-03T05:00:00Z

VLF (Very Low Frequency) signals in the range of 10-34 kHz are continuously recorded during the polar night.