• Organization: Department of the Interior
• Updated: 2020-08-12T00:00:00Z

This data release presents raw (.csv) and processed (.csv) data files from land-based, frequency-domain electromagnetic induction (EMI) data collected at Bicycle Basin, U.S. Army Fort Irwin...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1947-09-01T00:00:00.000+00:00

The photosphere of the Sun has a temperature of around 6, 000 degrees K and is the region in which sunspot activity is located. Sunspots appear dark against the surface of the sun due to the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1957-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives the K indices on a current basis from approximately 85 observatories. The K index is a...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1968-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives, on a monthly basis, indices that are based on the data from two approximately...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1988-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receive airborne magnetic survey data from US and non-US agencies. In an effort to provide a...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2015-09-18T00:00:00.000+00:00

The United States Air Force Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) is a polar orbiting meteorological sensor with two spectral bands (visible and thermal...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1959-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives on a monthly basis, the KM, KN, KS indices from Institue De Physique Du Globe, Paris,...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2001-09-07T00:00:00.000+00:00

The GOES Solar X-ray Imager is integrated into the GOES-12 satellite, whose primary mission is to provide Earth-weather monitoring. The SXI is operated by NOAA's National Environmental Satellite,...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2007-11-09T00:00:00.000+00:00

The calcium datasets consist of full-disk images of the sun in Calcium (Ca) II K wavelength (393.4 nm). Ca II K imagery reveal magnetic structures of the sun from about 500 to 2000 km above the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1967-08-15T00:00:00.000+00:00

In 1967 Boulder became one of the SPAN observatories when it received its Razdow Telescope. The telescope would be used to observe solar flares and related solar phenomena. Using a Hydrogen -...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2003-12-01T00:00:00.000+00:00

The Air Force Research Laboratory's Space Hazards Branch, in partnership with the National Solar Observatory at Sacramento Peak, developed a prototype instrumentation and software for the Improved...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1986-01-01T00:00:00.000+00:00

Debrecen Observatory collected white light images from many other observatories.

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1964-10-01T00:00:00.000+00:00

Solar synoptic maps usually refer to assembled composites recorded over a full solar rotation of about 27 days. Synoptic maps can be derived from single wavelength images or from multi-wavelength...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1996-06-15T00:00:00.000+00:00

The NOAA National Centers for Environmental Information decommissioned the Seismicity Catalog Collection, 2150 BC to 1996 AD on May 05, 2025 with no further updates. Upon termination, the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2011-11-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) maintain an archive of all data recorded on the Defense Meteorological Satellite Program (DMSP)...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1993-01-01T00:00:00.000+00:00

The National Geophysical Data Center (NGDC) of NOAA, in cooperation with the National Geodetic Survey of NOAA, have published a Gravity CD-ROM containing observed and derived gravity measurements....

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2006-04-01T00:00:00.000+00:00

The US Total Electron Content (US-TEC) product is designed to specify TEC over the Continental US (CONUS) in near real-time. The product uses a Kalman Filter data assimilation model, described in...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1957-01-01T00:00:00.000+00:00

The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) receives, on a monthly basis, Q indices from Sodankyla. These data are available from July 1957...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2003-12-23T00:00:00.000+00:00

A digital total-sediment-thickness database for the world's oceans and marginal seas has been compiled by the NOAA National Geophysical Data Center (NGDC). The data were gridded with a grid...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1999-01-01T00:00:00.000+00:00

A solar magnetogram is a pictorial representation of the spatial variations in strength of the solar magnetic field. Magnetograms are often produced by exploiting the Zeeman effect (or, in some...

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