Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-19T05:47:06Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 91 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_OML1BIRR_V003 -180.0,-90.0,180.0,90.0 2004-10-01T00:00:00Z T00:00:00Z 2013-04-29T04:00:00Z

The Level-1B (L1B) Radiance Product OML1BIRR (Version-3) from the Aura-OMI is now available (http://disc.gsfc.nasa.gov/Aura/OMI/oml1birr_v003.shtml) to public from the NASA GSFC Earth Sciences Data ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_SOR3SOLFUVD_V012 -180.0,-90.0,180.0,90.0 2003-05-14T00:00:00Z T00:00:00Z 2012-10-09T04:00:00Z

The SORCE SOLSTICE Far-UV Solar Spectral Irradiance (SSI) data product SOR3SOLFUVD is constructed using measurements from the SOLSTICE FUV instrument, which are combined into merged daily solar spectra ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_SOR3SOLMUVD_V012 -180.0,-90.0,180.0,90.0 2003-05-14T00:00:00Z T00:00:00Z 2012-10-09T04:00:00Z

The SORCE SOLSTICE Mid-UV Solar Spectral Irradiance (SSI) data product SOR3SOLMUVD is constructed using measurements from the SOLSTICE MUV instrument, which are combined into merged daily solar spectra ...

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]GES_DISC_SOR3TSI6_V013 -180.0,-90.0,180.0,90.0 2003-02-25T00:00:00Z T00:00:00Z 2012-07-06T04:00:00Z

The Total Solar Irradiance (TSI) data set SOR3TSI6 contains the total solar irradiance (a.k.a solar constant) data collected by the Total Irradiance Monitor (TIM) instrument covering the full wavelength ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_SOR3TSID_V013 -180.0,-90.0,180.0,90.0 2003-02-25T00:00:00Z T00:00:00Z 2012-07-06T04:00:00Z

The Total Solar Irradiance (TSI) data set SOR3TSID contains the total solar irradiance (a.k.a solar constant) data collected by the Total Irradiance Monitor (TIM) instrument covering the full wavelength ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NCL00121_122 5.0,45.0,15.0,55.0 1864-01-01T00:00:00Z 1890-12-31T00:00:00Z 2012-02-23T05:00:00Z

Climatic data resides in 2 books, 'Das Klima des Konigreiches Sachsen' (C/dc 320 L-wk), and 'Die Hauptsachlichsten Resultate aus den m den Jahren 1864-1900 im Konigreich Sachsen Anstellten Meteorologischen ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NCL00189_195 -1.0,51.0,0.0,54.0 1885-01-01T00:00:00Z 1910-12-31T00:00:00Z 2012-02-23T05:00:00Z

The Teddington surface data resides in 2 books, 'Teddington, England, National Physical Laboratory Report (1901-1910)' (C/de35 A1). Data contained in these books are tables of hourly, daily, monthly ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NCL00103_111_232_235 5.0,45.0,15.0,55.0 1833-01-01T00:00:00Z 1933-12-31T00:00:00Z 2012-02-23T05:00:00Z

The thunderstorm data resides in 1 book, 'Ueber Zundende Blitze im Kongreich Bayern Wahrend Des Zeitraumes 1833 bis 1882' (C/dc 161 B) written in German. The data contained in this book are tables ...

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]SORCE_XPS 2003-02-25T00:00:00Z T00:00:00Z 2012-02-01T05:00:00Z

This data set consists of SORCE Extreme Ultraviolet (XUV) data from the XPS instrument on-board the SORCE spacecraft. The XPS instrument has 12 photodiodes for measuring XUV and EUV irradiance. 7 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]TIMED_SEE 2002-02-17T00:00:00Z T00:00:00Z 2012-02-01T05:00:00Z

The Solar EUV Experiment (SEE) is one of four instruments that constitute the TIMED spacecraft, the first mission of the NASA Solar Connections program. All SEE data products ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SNOE -180.0,-90.0,180.0,90.0 1998-03-11T00:00:00Z 2003-09-30T00:00:00Z 2012-02-01T05:00:00Z

The Student Nitric Oxide Explorer (SNOE or "snowy") is a small scientific satellite that measured the effects of energy from the sun and from the magnetosphere on the density of nitric ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]BOREAS_ECMWF -114.0,48.0,-92.0,62.0 1994-01-01T00:00:00Z 1996-12-31T00:00:00Z 2011-12-19T05:00:00Z

In cooperation with BOREAS atmospheric research efforts, the ECMWF agreed to provide BOREAS with a customized subset of its 6-hourly forecast data. This data set contains parameters from three ECMWF ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.class.GOME_L2 -180.0,-90.0,180.0,90.0 2007-10-01T00:00:00Z T00:00:00Z 2011-11-29T05:00:00Z

ABSTRACT: The GOME-2 total ozone retrieval algorithm is based on OMI/TOMS (Ozone Monitoring Instrument / Total Ozone Mapping Spectrometer) V8 algorithm, which is a three-step process of successive ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_SOR3SIMD_V017 -180.0,-90.0,180.0,90.0 2004-04-21T00:00:00Z T00:00:00Z 2011-11-29T05:00:00Z

The SORCE SIM Solar Spectral Irradiance (SSI) data product SOR3SIMD is constructed using measurements from the SIM instruments, which are combined into merged daily solar spectra over the spectral ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_SOR3XPS6_V010 -180.0,-90.0,180.0,90.0 2003-02-10T00:00:00Z T00:00:00Z 2011-11-29T05:00:00Z

The SORCE XUV Photometer System (XPS) Solar Spectral Irradiance (SSI) 6-Hour Data Product SOR3XPS6 contains solar XUV irradiances in the 0.1 to 27 nm range, as well as Lyman-alpha, in broad bands ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]GES_DISC_SOR3XPSD_V010 -180.0,-90.0,180.0,90.0 2003-02-10T00:00:00Z T00:00:00Z 2011-11-29T05:00:00Z

The SORCE XUV Photometer System (XPS) Solar Spectral Irradiance (SSI) Daily Data Product SOR3XPSD contains solar XUV irradiances in the 0.1 to 27 nm range, as well as Lyman-alpha, in broad bands (7-10 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.class.GOMEMGII -80.0,-90.0,180.0,90.0 2007-10-01T00:00:00Z T00:00:00Z 2011-11-03T04:00:00Z

ABSTRACT: The Magnesium II information is extracted daily from the GOME-2 1B granules, as soon as new solar radiance measurements are available. The product includes a 61-wavelength subset of the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.class.CORS -180.0,-90.0,180.0,90.0 2010-10-01T00:00:00Z T00:00:00Z 2011-11-02T04:00:00Z

ABSTRACT: The National Geodetic Survey (NGS), an office of NOAA's National Ocean Service (NOS), coordinates a network of geodetic-quality CORS stations that provide Global Positioning System (GPS) ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ATMOS_SPACELAB3 -180.0,26.0,180.0,34.0 1985-04-29T00:00:00Z 1985-05-05T00:00:00Z 2011-07-29T04:00:00Z

The Atmospheric Trace Molecule Spectroscopy (ATMOS) experiment was flown on the Space Shuttle STS-51B as part of the Spacelab-3 laboratory to demonstrate the capability to monitor environmental quality ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]gov.noaa.ncdc.C00542 -123.0,30.0,-77.0,48.0 1995-01-01T00:00:00Z T00:00:00Z 2011-07-21T04:00:00Z

U.S. Integrated Surface Irradiance Study (ISIS) Level 1 - 15 Minute Values and Statistics is digital data set DSI-9870, archived at the National Climatic Data Center (NCDC).ISIS is a continuation ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]gov.noaa.ncdc.C00541 -122.3,30.4,-77.7,47.5 1995-01-01T00:00:00Z T00:00:00Z 2011-07-21T04:00:00Z

U.S. Integrated Surface Irradiance Study (ISIS) Level 1 - Hourly Values is digital data set DSI-9871, archived at the National Climatic Data Center (NCDC).ISIS is a continuation of earlier National ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]gov.noaa.ncdc.C00540 -120.0,30.0,-74.0,49.0 1995-01-01T00:00:00Z T00:00:00Z 2011-07-21T04:00:00Z

U.S. Integrated Surface Irradiance Study (ISIS) Level 2 (SURFRAD) is digital data set DSI-9872, archived at the National Climatic Data Center (NCDC).ISIS is a continuation ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G01257 -180.0,-90.0,180.0,90.0 1957-01-01T00:00:00Z 1990-01-01T00:00:00Z 2011-04-19T04:00:00Z

ABSTRACT: The ionosphere is that part of the Earth's atmosphere that results mainly from the photo ionization of the upper atmosphere. Traditionally, the following ionospheric regions and their approximate ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G01119 -180.0,-90.0,180.0,90.0 1975-04-01T00:00:00Z T00:00:00Z 2011-03-10T05:00:00Z

ABSTRACT: Visible and infrared imagery from DMSP Operational Linescan System (OLS) instruments are used to monitor the global distribution of clouds and cloud top temperatures twice each day. The ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G01127 -180.0,-90.0,180.0,90.0 1975-04-01T00:00:00Z T00:00:00Z 2011-03-10T05:00:00Z

ABSTRACT: The SSIES measures the ambient electron density and temperatures, ambient ion density, the average ion temperature and molecular weight, the plasma drift and scintillation at the DMSP orbital ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G01122 -180.0,-90.0,180.0,90.0 1974-04-01T00:00:00Z T00:00:00Z 2011-03-10T05:00:00Z

ABSTRACT: DMSP SSJ/4 data provide a complete energy spectrum of the low energy particles that cause the aurora and other high latitude phenomena. The data set consists of electron and ion particle ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00603 -180.0,-90.0,180.0,90.0 1972-01-01T00:00:00Z T00:00:00Z 2011-03-07T05:00:00Z

ABSTRACT: Airglow is a faint luminescence of the earth's upper atmosphere. The emitted electromagnetic radiation results mainly from photo-chemical reactions of upper atmospheric constituents. Although ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00599 -180.0,-90.0,180.0,90.0 1953-01-01T00:00:00Z T00:00:00Z 2011-03-07T05:00:00Z

ABSTRACT: Most cosmic rays come from the galaxy, though some are produced by eruptive events on the Sun's surface. These high energy cosmic ray particles can affect satellites, causing single event ...

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.G00543 -180.0,-90.0,180.0,90.0 1974-07-01T00:00:00Z 1984-08-21T00:00:00Z 2011-03-03T05:00:00Z

ABSTRACT: The Space Environment Monitor (SEM) instrument package on-board all GOES satellites has provided magnetometer, energetic particle, and soft X-ray data continuously since July 1974. Usually ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00563 -180.0,-90.0,180.0,90.0 1957-01-15T00:00:00Z 1975-01-01T00:00:00Z 2011-03-03T05:00:00Z

ABSTRACT: The oblique incidence sweep-frequency ionospheric sounding technique uses the same principle of operation as the vertical incidence sounder. The primary difference is that the transmitter ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00556 -180.0,-90.0,180.0,90.0 1944-03-01T00:00:00Z T00:00:00Z 2011-03-03T05:00:00Z

ABSTRACT: These ionospheric data consist of scaling notes, equipment usage logs, and ionospheric values in the form of daily work sheets, F-Plots, tabulations, and booklets. The station notes list ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00569 -180.0,-90.0,180.0,90.0 1963-01-01T00:00:00Z 1990-12-31T00:00:00Z 2011-03-03T05:00:00Z

ABSTRACT: Absorption of radio waves occurs when electrons responding to the wave fields collide with and transfer energy to the neutral particles. A study of ionospheric absorption yields information ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00551 -180.0,-90.0,180.0,90.0 1944-03-01T00:00:00Z T00:00:00Z 2011-03-03T05:00:00Z

ABSTRACT: The standard (analog) ionosonde produces photographic records known as ionograms, which show the variations of the virtual height of reflection as a function of the radio frequency. The ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00533 -180.0,-90.0,180.0,90.0 1931-01-01T00:00:00Z T00:00:00Z 2011-03-03T05:00:00Z

ABSTRACT: The solar magnetic field is approximately a dipole at high latitudes and is highly irregular at middle and low latitudes. The field apparently gives rise to a coupling between solar differential ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00594 -180.0,-90.0,180.0,90.0 1957-01-01T00:00:00Z 1984-11-20T00:00:00Z 2011-03-02T05:00:00Z

ABSTRACT: An aurora involves emitted electromagnetic radiation that results primarily from the interaction of energetic, extra-atmospheric particles with the neutral gases of the upper atmosphere. ...

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.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?[NOAA-NMMR]gov.noaa.ngdc.G00538 -180.0,-90.0,180.0,90.0 1939-01-01T00:00:00Z T00:00:00Z 2011-03-02T05:00:00Z

ABSTRACT: The solar corona is the outermost layer of the sun's atmosphere--a very hot halo (millions of degrees), that, in the form of the solar wind, extends well past the Earth's orbit. The corona ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00547 -180.0,-90.0,180.0,90.0 1978-08-01T00:00:00Z T00:00:00Z 2011-03-02T05:00:00Z

ABSTRACT: The "solar constant" is, in fact, not constant. Recent satellite observations have found that the Total Solar Irradiance (TSI), the amount of solar radiation received at the top of the Earth's ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00534 -180.0,-90.0,180.0,90.0 1919-03-01T00:00:00Z T00:00:00Z 2011-03-02T05:00:00Z

ABSTRACT: Solar Prominences and Filaments appear as dark filamentary objects on the solar disk (filaments) and as protuberances on the edge of the solar disk (prominences). They generally sit above ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00542 -180.0,-90.0,180.0,90.0 1978-11-01T00:00:00Z T00:00:00Z 2011-03-02T05:00:00Z

ABSTRACT: The ultraviolet (UV) part of the electromagnetic spectrum ranges between 5 and 400 nanometers (nm). As the SORCE (Solar Radiation and Climate Experiment satellite) mission states, far UV ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00532 -180.0,-90.0,180.0,90.0 1700-01-01T00:00:00Z T00:00:00Z 2011-03-02T05:00:00Z

ABSTRACT: In 1848 the Swiss astronomer Johann Rudolph Wolf introduced a daily measurement of sunspot number. His method, which is still used today, counts the total number of spots visible on the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00146 -180.0,-90.0,180.0,90.0 1954-12-15T00:00:00Z 1993-12-31T00:00:00Z 2011-03-01T05:00:00Z

ABSTRACT: The Electron Density Profile, N(h), data set contains both individual profiles and composite months. The data consist of virtual height/frequency pairs from a profile or profiles (composite ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00145 -180.0,-90.0,180.0,90.0 1965-11-15T00:00:00Z 1977-12-15T00:00:00Z 2011-03-01T05:00:00Z

ABSTRACT: For radio waves transmitted through the ionosphere with frequencies much larger (50 to 1300MHz) than the plasma frequency (up to 15MHz), very small-scale fluctuations of electron density ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00188 -180.0,-90.0,180.0,90.0 1978-11-01T00:00:00Z T00:00:00Z 2011-03-01T05:00:00Z

ABSTRACT: The TIROS/NOAA satellite series, also known as POES, is designed to meet the National Oceanic and Atmospheric Administration's need for operational, remote sensing products for numerical ...

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?[NOAA-NMMR]gov.noaa.ngdc.G00015 -180.0,-90.0,180.0,90.0 1973-01-01T00:00:00Z 1992-12-31T00:00:00Z 2011-02-28T05:00:00Z

ABSTRACT: DMSP SSJ/4 data provide a complete energy spectrum of the low energy particles that cause the aurora and other high atitude phenomena. The data set consists of electron and ion particle ...