gov.noaa.ngdc.sem:poes_sem_g00188 eng; USA utf8 dataset DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ISO 19115 Metadata Contact 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern pointOfContact 2022-12-08 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) EPSG Geodetic Parameter Dataset Registry 2008-11-12 publication International Association of Oil and Gas Producers (OGP) Geomatics Committee http://www.epsg-registry.org/ Data Search Application EPSG Geodetic Parameter Dataset Registry Application Interface to the EPSG Geodetic Parameter Dataset Registry search custodian International Association of Oil and Gas Producers (OGP) Geomatics Committee http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4326 Download Coordinate Reference System data in GML Coordinate Reference System data in GML download custodian urn:ogc:def:crs:EPSG::4326 Unknown Space Environment Monitor (SEM) data from NOAA POES and MetOp POES-SEM 1978-11 publication gov.noaa.ngdc.sem:poes_sem_g00188 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce publisher DOC/NOAA/NESDIS/OSPO > Office of Satellite and Product Operations (OSPO) originator DOC/NOAA/NESDIS/SWPC > Space Weather Prediction Center (SWPC) originator DOC/NOAA/NESDIS/NCEI/GSDB > Geophysical Science and Development Branch originator EUMETSAT > European Meteorological Satellite Organisation originator Baugh, Kimberly DOC/NOAA/NESDIS/NCEI/GSDB > Geophysical Science and Development Branch author Redmon, Rob DOC/NOAA/NESDIS/NCEI/GSDB > Geophysical Science and Development Branch author imageDigital The Space Environment Monitor (SEM) instrument onboard the NOAA POES satellite series and MetOp satellite series measures the flux of energetic ions and electrons at the altitude of the satellite. This data is used to detect and monitor space weather activity that may disrupt radio communications and/or the proper operation of satellite systems. The NOAA Space Weather Prediction Center (SWPC) processes the particle counts received from SEM instruments and uses the data to monitor solar activity and the state of the Earth's near space environment. Observations are acquired by the SEM Total Energy Detector (TED) and the SEM Medium Energy Proton and Electron Detector (MEPED). SEM/TED measures the energy flux of auroral particles for both positively charged ions (assumed here to be protons) and electrons, into the polar atmosphere. SEM/MEPED monitors the intensities of protons and electrons over a range extending from 30 keV to more than 200 MeV. Particles having those energies include the radiation belt (Van Allen belt) populations, the particles in energetic solar particle events (solar proton events), and the low energy portion of the galactic cosmic ray population. This data collection includes Level 0b raw counts (operation data stream) acquired by the SEM-1 and SEM-2 instruments and the following derived products generated from SEM-2 instrument observations: Level 1a count rates, Level 1b flux, and Level 2 count rates. The Level 0b raw counts are produced operationally at the NOAA/NESDIS Office of Satellite and Product Operations (OSPO) and distributed by NOAA’s National Center for Environmental Information (NCEI) as orbital files or daily Tar files in NetCDF and binary formats. The derived L1a, L1b, and Level 2 products are produced by NCEI and distributed by NCEI as daily files or monthly Tar files in the NetCDF format. The temporal period of record extends from Nov 1978 to the present for the operational data stream; from Jan 2012 to the present for the L1a and L1b products; and from July 1998 to Dec 2014 for the L2 product. To measure the particle radiation environment along the NOAA POES and MetOp orbital paths. onGoing DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.info@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern pointOfContact continual https://www1.ncdc.noaa.gov/pub/data/metadata/images/g00188_poes-sem.jpg Flux map of the POES-SEM energetic particle data, combining 5 days and 3 satellites to obtain global coverage. PNG Solar Physics EARTH SCIENCE > SOLAR PHYSICS > Solar Energetic Particles > Electron Flux EARTH SCIENCE > SOLAR PHYSICS > Solar Energetic Particles > Energetic Particles EARTH SCIENCE > SOLAR PHYSICS > Solar Energetic Particles > Particle Flux EARTH SCIENCE > SOLAR PHYSICS > Solar Activity > Solar Events EARTH SCIENCE > SOLAR PHYSICS > Solar Activity > Solar Flares theme Geographic Region > Global place TIROS-N > Television Infrared Observation Satellite NOAA-6 > National Oceanic Atmospheric Administration-6 NOAA-7 > National Oceanic Atmospheric Administration-7 NOAA-8 > National Oceanic Atmospheric Administration-8 NOAA-10 > National Oceanic Atmospheric Administration-10 NOAA-12 > National Oceanic Atmospheric Administration-12 NOAA-14 > National Oceanic Atmospheric Administration-14 NOAA-15 > National Oceanic Atmospheric Administration-15 NOAA-16 > National Oceanic Atmospheric Administration-16 NOAA-17 > National Oceanic Atmospheric Administration-17 NOAA-18 > National Oceanic Atmospheric Administration-18 NOAA-19 > National Oceanic Atmospheric Administration-19 METOP-A > Meteorological Operational Satellite-A METOP-B > Meteorological Operational Satellite-B METOP-C > Meteorological Operational Satellite-C platform SEM-1 > Space Environment Monitor-1 SEM-2 > Space Environment Monitor-2 SEM/MEPED > Medium energy proton detector SEM/TED > Total Energy Detector instrument DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre otherRestrictions Cite as: Space Environment Monitor (SEM) data from NOAA POES and MetOp. [indicate subset used]. NOAA National Centers for Environmental Information. [access date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. eng utf8 climatologyMeteorologyAtmosphere 1 -180.0 180.0 -90.0 90.0 L0b operational data stream 1978-11-01 sem1-l0b-ct_v1r0_m03_syyyymmdd_eyyyymmdd_cyyyymmddhhmm..tar physicalMeasurement sem2-l0b-ct_v1r0_m03_syyyymmdd_eyyyymmdd_cyyyymmddhhmm..tar physicalMeasurement sem2-l1a-cps_v1r0_m03_syyyymmdd_eyyyymmdd_cyyyymmddhhmm..tar physicalMeasurement sem2-l1b-flx_v1r0_m03_syyyymmdd_eyyyymmdd_cyyyymmddhhmm..tar physicalMeasurement sem2-l2-avg16s_v1r0_m03_syyyymmdd_eyyyymmdd_cyyyymmddhhmm..tar physicalMeasurement DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Data Access Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern distributor In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media. Gzip-tar NetCDF-4 CDF Binary Text https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.sem%3Apoes_sem_g00188/html HTTPS Landing Page NCEI Landing Page for This Dataset Dataset landing page with general information and links to access the data. information https://www.ncei.noaa.gov/data/poes-metop-space-environment-monitor HTTPS Download NCEI HTTPS Direct Download Server Access and download data files. Files for the entire period of record are accessible at this location. download https://www.ncei.noaa.gov/products/poes-space-environment-monitor HTTPS Information POES Space Environment Monitor POES Space Environment Monitor (SEM) web page. information dataset The data were produced by the NOAA Office of Satellite and Product Operations (OSPO), the NOAA Space Weather Prediction Center (SWPC), and the NOAA National Centers for Environmental Information (NCEI). For a description of the processing steps, see the TED, MPED, and SEM-2 Algorithm Theoretical Basis Documents (ATBD). processor MEPED Telescope Algorithm Theoretical Basis Document https://www.ncei.noaa.gov/data/poes-metop-space-environment-monitor/doc/atbd/MEPED%20telescope%20processing%20ATBD_V1.pdf HTTPS Web Browser POES/SEM MPED ATBD information MEPED OMNI Algorithm Theoretical Basis Document https://www.ncei.noaa.gov/data/poes-metop-space-environment-monitor/doc/atbd/MEPED_OMNI_processing%20ATBD_V1.pdf HTTPS Web Browser POES/SEM MPED ATBD information TED Algorithm Theoretical Basis Document https://www.ncei.noaa.gov/data/poes-metop-space-environment-monitor/doc/atbd/TED%20processing%20ATBD_V1.pdf HTTPS Web Browser POES/SEM TED ATBD information External Users Manual POES/MetOp SEM-2 Processing https://www.ncei.noaa.gov/data/poes-metop-space-environment-monitor/doc/sem2_docs/External_Users_Manual_POES_MetOp_SEM-2_processing_V1.pdf HTTPS Web Browser POES/MetOp SEM-2 Processing information The processed data are derived from SEM-1 and SEM-2 level 0B sensor data. SEM-2 L0B sensor data 1 -180 180 -90 90 1978-11-01 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 asNeeded Bulk metadata change applied on 2018-11-05. See version control repository history for metadata change details.