gov.noaa.ngdc.stp.solar:G00547 eng; USA utf8 dataset Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303.497.6133 or 303.497.6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain Contact Data Center pointOfContact 2011-11-17 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Solar Irradiance 1984 publication First Downloadable Data DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp.) publisher SI > Smithsonian Institution originator Solar Geophysical Data (SGD) International Standard Serial Numbers (ISSN) 'ISSN 0038-0911 Solar Geophysical Data (SGD)' 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 atmosphere, does vary - see the graph for the results from six satellites(ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SOLAR_IRRADIANCE/IRRAD97.PDF). "The variations on solar rotational and active region time scales are clearly seen. The large, short-term decreases are caused by the TSI blocking effect of sunspots in magnetically active regions as they rotate through our view from Earth. The peaks of TSI preceding and following these sunpot "dips" are caused by the faculae of solar active regions whose larger areal extent causes them to be seen first as the region rotates onto our side of the sun and last as they rotate over the opposite solar limb." [Excerpted from the UARS descriptive text] The TSI provides the energy that determines the Earth's climate.Variations of the total solar irradiance (solar constant) have become an important new tool for studying the sun since the deployment of a new generation of precise solar flight instrumentation, such as the ACRIM I satellite experiment on the Solar Maximum Mission (SMM) in 1980. The study of variations of the spectral irradiance observed in the EUV also has developed rapidly. The largest variations of the total irradiance occur on time scales of a day to several weeks and are caused by solar active regions. Efforts to model the radiative effects of active regions are proceeding and the first round of results from these have appeared in literature. Disagreements have quickly surfaced in this new field and a topical workshop was convened at the California Institute of Technology in June 1983, to provide both formal and informal opportunities for dialog between those actively working in this area. The papers resulting from this workshop are collected in the report by LaBonte et al. (1984). NGDC Boulder holds the SMM satellite irradiance data for February 1980 to May 1989 and the Nimbus data for November 1978 to the present. Also available are the Hoyt and Eddy model data for the period 1974 to 1981. Early data by Abbott, Smithsonian Institution, from many locations worldwide covering the period 1902 to 1962 are available also. To provide long-term scientific data stewardship for the Nation's geophysical data, ensuring quality, integrity, and accessibility. underDevelopment Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303.497.6133 or 303.497.6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain Contact Data Center pointOfContact asNeeded Earth Science > Atmosphere > Atmospheric Radiation > Solar Irradiance Earth Science > Atmosphere > Atmospheric Radiation > Solar Radiation Earth Science > Sun-Earth Interactions > Solar Activity > Solar Active Regions Earth Science > Sun-Earth Interactions > Solar Activity > Solar Irradiance theme NASA/Global Change Master Directory (GCMD) Earth Science Keywords 2007-04 revision Version 6.0.0.0.0 2007-04 NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html http web browser GCMD Keywords, Version 6.0.0.0.0 Thesuarus for earth science keywords and associated directories hosted and maintained by NASA. information resourceProvider SMM Solar Constant Solar Physics theme Uncontrolled Keywords WDC/STP, BOULDER > World Data Center for Solar-Terrestrial Physics, Boulder DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCenter NASA/GCMD Data Center Keywords Space > Solar Region > Corona place NASA/GCMD Location Keywords otherRestrictions otherRestrictions Access Constraints: No Constraints Use Constraints: None Distribution Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. eng; USA geoscientificInformation 1978-08-01 This archive contains data from:Composite Total Solar Irradiance database 1978-present, compiled by C. Frohlich and J. LeanACRIM Composite TSI Time Series 1978-present, compiled by R. WillsonSORCE (Solar Radiation and Climate Experiment) 2003 - present, compiled by G. RottmanTotal Solar Irradiance (TSI) data from individual satellites: ERBS (Oct 1984-Aug 2003), NIMBUS (Nov 16, 1978-Dec 13, 1993), NOAA9 (Jan 23, 1985-Dec 20, 1989), NOAA10 (Oct 22, 1986-Apr 1, 1987), SMM Feb 16, 1980-June 1, 1989), SOHO VIRGO (Jan 18, 1996-Nov 13, 1999) and UARS (Oct 4, 1991-Dec 31, 1997)Older, archival databases contain data from:Dr. John Arvesen's Solar Spectral Irradiance data at the top of the atmosphere in the 300-2500 nm wavelength range (UV to visible), from NASA research aircraft -- 11 flightsCharles Greeley Abbot solar constant database -- Note: 2 years of scientific investigation are needed to bring this database into a scientifically useable research database ASCII Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303.497.6133 or 303.497.6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain Contact Data Center distributor Free downloadable data Ordering Instructions: Data may be downloaded Depends on amount of data requested. Non-Digital Form: Paper Pages Ordering Instructions: Prepay by check, money order or bank card. There is a standard handling charge, with additional costs for special handling. Orders may be placed via fax, email, regular mail or telephone 4 Days 55 http://www.ngdc.noaa.gov/stp/SOLAR/ftpsolarirradiance.html ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SOLAR_IRRADIANCE http://www.ngdc.noaa.gov/stp/SOLAR/ftpsolarirradiance.html ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SOLAR_IRRADIANCE annually This metadata was automatically generated from the Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata standard version FGDC-STD-012-2002 using the June 2011 version of the FGDC RSE to ISO 19115-2 transform. The Spatial Reference Information is not currently mapped over to ISO but will be mapped in future versions. Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303.497.6133 or 303.497.6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain Contact Data Center custodian