gov.noaa.ngdc.stp.solar:solar-features_solar-features_solar-radio
eng; U.S.A.
utf8
nonGeographicDataset
series
William Denig
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6323
(303) 497-6513
325 Broadway E/GC2
Boulder
CO
80305
USA
solar.ngdc@noaa.gov
7:30 - 4:30 Mountain
pointOfContact
2015-10-02
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Solar Radio
2012-10-14
publication
solarFeatures
NOAA National Centers for Environmental Information
publisher
Scientific Data Stewardship provided by the National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce.
originator
Scientists monitor the structure of the solar corona, the outer most regions of the Sun's atmosphere, using radio waves (100’s of MHz to 10’s of GHz). Variations in the
radiowave spectrum reveal characteristics of the corona and upper chromosphere in terms of altitude profile for the local plasma temperature, density and magnetic field. Typically, the lower
the frequency then the higher the height of origin. The frequency, like the solar electron density, decreases uniformly outwards with 245 MHz originating high in the corona whereas 15,400 MHz
originates in the low corona. Radio bursts are associated with solar flares. The delay at Earth of the different radio frequencies during burst events is due to the outward movement of the source.
Bursts can have temperatures of 10xE12 degrees Kelvin. Large bursts last 10 to 20 minutes on average. Longer radio noise storms of persistent and variable high levels of radiation originate in
sunspot groups, areas of large, intense magnetic fields. These storms are strongly circularly polarized due to the intense magnetic fields. The microwave wavelength 2800 MHz daily radio flux
correlates highly with the daily sunspot number and the two databases are used interchangeably. The 2800 MHz, or 10.7 cm, responds to the same conditions that produce changes in the visible and
X-ray wavelengths. Schmahl and Kundu (1995) find that the solar radio fluxes in the spectral range 1000-9400 MHz correlate well with the total solar irradiance. The intermediate frequencies
(at 2800 and 3750 MHz) are produced mainly by free-free gyroresonance emission from sunspot structures, while 1000 and 9400 MHz flux are produced mainly by free-free processes from structures
associated with plages. They can distinguish plage-associated emission from spot-associated emission in the time series of microwave flux, both contributing opposing effects on the total
solar irradiance.
To provide scientific data stewardship of solar-terrestrial datasets in compliance with NOAA Administrative Order (NAO) 212-15, "Management of Environmental and Geospatial Data and Information", dated 04 Nov 10. Scientific Data Stewardship includes the Archive, Access, and Assessment (AAA) of operational and related solar and space environmental datasets.
Data access provided by the NOAA Solar and Terrestrial Physics Division.
underDevelopment
William Denig
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6323
(303) 497-6513
325 Broadway E/GC2
Boulder
CO
80305
USA
solar.ngdc@noaa.gov
7:30 - 4:30 Mountain
pointOfContact
annually
ftp://ftp.ngdc.noaa.gov/STP/space-weather/solar-data/solar-features/solar-radio/documentation/browse_radio-burst.jpg
Browse image of the sun in x-rays during a solar radio burst(
Joint Photographic Experts Group (jpg) format
Sun-Earth Interactions > Solar Activity > Solar Active Regions
Sun-Earth Interactions > Solar Activity > Solar Imagery
theme
NASA/GCMD Earth Science Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 .
NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0.
2007
publication
Space > Solar Region > Chromosphere
place
NASA/GCMD Location Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 .
NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0.
2007
publication
Solar Telescope
instrument
NASA/GCMD Instrument Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 .
NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0.
2007
publication
Solar Observatory Stations
platform
NASA/GCMD Platform Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 .
NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0.
2007
publication
ICSU-WDS > International Council for Science - World Data System
NOAA - Space Weather Program
project
Global Change Master Directory (GCMD) Project Keywords
2020-01-09
publication
9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
custodian
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2020-01-09
publication
9.1
NASA Goddard Space Flight Center, Earth Science Data and Information System
https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
Global Change Master Directory (GCMD) Keywords
The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
information
custodian
otherRestrictions
otherRestrictions
Access Constraints: None 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; U.S.A.
geoscientificInformation
climatologyMeteorologyAtmosphere
Data assembled from data provided by various solar observatories located worldwide.
-180
180
-90
90
Dataset Extent
1955-07-01
2010-11-24
0
0
Collection consists of tabular lists and information related to solar features
Solar features
Collection includes a variety of solar feature datasets contributed by a number of national and private solar observatories located worldwide. Collection includes lists of optical solar flares observed in H-alpha and x-rays, solar radio data, prominences and filaments, plague regions and faculae, and sunspots.
pdf
Most data provided in Adobe Portable Document Format (pdf).
txt
Some data provide in American Standard Code for Information Interchange (ASCII) text format.
binary
Some data provided in native format as received from provider.
William Denig
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6323
(303) 497-6513
325 Broadway E/GC2
Boulder
CO
80305
USA
solar.ngdc@noaa.gov
7:30 - 4:30 Mountain
pointOfContact
Data can be downloaded free of charge.
Tabular lists and tables
ftp://ftp.ngdc.noaa.gov/STP/space-weather/solar-data/solar-features/solar-radio/
Solar Radio Data
A variety of datasets related to solar radio emissions. Included are datasets related to solar radio bursts (tables and reports), listings from the International Astronomical Union's Bulletin of Solar Activity (53 stations), noontime solar radio flux measurements (5 stations), 1-sec solar flux measurements from the Radio Solar Telescope Netword (RSTN), and RSTN solar spectral measurements.
download
https://www.ngdc.noaa.gov/stp/spaceweather.html
Space Weather
Numerous space environmental datasets are available at the NGDC/STP website
information
repository
NOAA National Centers for Environmental Information
NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
2015-04-22T00:00:00
series
The collection is as complete as possible with all available data online.
Datasets prepared by professional staff within the Solar and Terrestrial Physics Division at the National Geophysical Data Center.
Datasets prepared by professional staff within the Solar and Terrestrial Physics Division at the National Geophysical Data Center.
Listings provided in pdf and txt formats, as applicable.
Timing, heliographic position, assigned region number, and other relevant information provided for each identified flare.
Datasets prepared by professional staff within the Solar and Terrestrial Physics Division at the National Geophysical Data Center.
Supporting metatdata included, as available.
Flare times determined by trained staff at solar observatories.
Authoritative data provided by the NOAA National Geophysical Data Center.
Flare listings compiled using data received from various solar observatories.
2010-09-30T00:00:00
William Denig
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
processor
The NOAA Solar and Terrestrial Physics Division is responsible for managing this collection.
Collection included as a part of the NGDC Official Archive.
H-alpha Flare Listings
2011-01-01
publication
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
resourceProvider
ground condition
1955-07-01
2010-11-24
Datasets prepared by professional staff within the Solar and Terrestrial Physics Division at the National Geophysical Data Center.
Flares observed in H-alpha.
Solar Flares: H-alpha
NOAA National Geophysical Data Center (NGDC)
303 497-6323
303 497-6513
325 Broadway, E/GC2
Boulder
Colorado
80305-3337
U.S.A.
solar.ngdc@noaa.gov
https://www.ngdc.noaa.gov/
NOAA National Geophysical Data Center (NGDC)
NOAA's National Geophysical Data Center (NGDC) provides scientific stewardship, products, and services for geophysical data from the Sun to the Earth and Earth's sea floor and solid earth environment, including Earth observations from space.
resourceProvider
1955-07-01
2010-11-24
annually
2013-12-30
Update collection for the Space Weather Prediction Center daily full sun drawings as data becomes available, including missing records (all observatories).
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.
This record was automatically modified on 2015-10-02 to include references to NCEI where applicable.
NOAA National Centers for Environmental Information
Metadata Specialist
editor
William Denig
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
(303) 497-6323
(303) 497-6513
325 Broadway E/GC2
Boulder
CO
80305
USA
solar.ngdc@noaa.gov
7:30 - 4:30 Mountain
pointOfContact
Solar observatories
Full sun drawings of the sun.