gov.noaa.ncdc:C01698 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2025-05-01T14:30:08 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Commercial (Comm) Radio Occultation (RO) Raw Data Record (RDR) from PlanetiQ CommRO RDR - PlanetiQ 2023-07-25 publication 2023-07-18 creation Radio Occultation Data Buy II (RODB-2) Indefinite Delivery/Indefinite Quantity (IDIQ) Delivery Order 2 (DO2) doi:10.25921/7xdk-vy89 NCEI DSI 2081_01 gov.noaa.ncdc:C01698 NOAA National Centers for Environmental Information publisher PlanetiQ info@planetiq.com author PlanetiQ info@planetiq.com contributor NOAA/NESDIS Systems Architecture and Engineering collaborator UCAR COSMIC Program collaborator profileDigital This dataset contains Commercial (Comm) Radio Occultation (RO) Raw Data Records (RDR) from PlanetiQ. It is from Radio Occultation Data Buy II (RODB-2) Indefinite Delivery/Indefinite Quantity (IDIQ), dated March 27, 2023 to March 26, 2028. For RODB-2 IDIQ, NOAA solicited commercial near-real-time satellite-based Global Navigation Satellite System (GNSS) Radio Occultation (RO) and ionospheric measurements that will be processed into neutral atmosphere and space weather products. These derived products will be fed into NOAA's operational data systems, including weather and space weather analysis and prediction systems, and used for weather, climate, and atmospheric research purposes. CommRO is an is an established method for remote sounding of the atmosphere. The technique uses an instrument in low-Earth orbit to track radio signals from Global Navigation Satellite System (GNSS) transmitters as they rise or set through the atmosphere. The occulting atmosphere refracts or bends the radio signals, and given the precise positions of both satellites, the bending angle can be deduced from the time delay of the signal. Collecting these measurements for a full occultation through the atmosphere provides a vertical profile of bending angles, from which profiles of physical quantities such as temperature, humidity, and ionospheric electron density can be retrieved. These data primarily feed numerical weather prediction (NWP) models that support weather forecasts, and also support space weather analysis/prediction at NOAA. These data are available to the public for a wide variety of uses including scientific research and analysis. NOAA National Centers for Environmental Information 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.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 weekly https://www.ncei.noaa.gov/pub/data/metadata/images/C01698-planetiq_satellite.jpeg NOAA Data JPEG EARTH SCIENCE > SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > UPPER AIR TEMPERATURE > VERTICAL PROFILES theme Atmospheric Composition Upper Atmosphere Surface theme GEOGRAPHIC REGION > GLOBAL place VERTICAL LOCATION > IONOSPHERE stratum GNSS-RO RECEIVER > Global Navigation Satellite System Radio Occultation (CLARREO) instrument DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce UCAR/COSMIC/CDAAC > COSMIC Data Analysis and Archive Center, Constellation Observing System for Meteorology, Ionosphere and Climate, University Corporation for Atmospheric Research dataCentre NOAA Central Computer Facility Low Earth Orbit (LEO) CubeSats theme otherRestrictions Cite as: PlanetiQ (2023): Commercial (Comm) Radio Occultation (RO) Raw Data Record (RDR) from PlanetiQ. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/7xdk-vy89. [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. UCAR COSMIC Program CDAAC GNSS Radio Occultation Datasets 2021 publication UCAR/COSMIC/CDAAC > COSMIC Data Analysis and Archive Center, Constellation Observing System for Meteorology, Ionosphere and Climate, University Corporation for Atmospheric Research collaborator https://doi.org/10.5065/0dxg-nn57 HTTPS Web Browser UCAR COSMIC Program CDAAC GNSS Radio Occultation Datasets UCAR COSMIC GeoOptics dataset landing page with general information and access links for the dataset. information crossReference project vector eng; USA climatologyMeteorologyAtmosphere 1 -180.0 180.0 -90.0 90.0 ground condition 2023-07-18 2024-01-18 1 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. netCDF-4 PDF https://doi.org/10.25921/7xdk-vy89 HTTPS Landing Page NCEI Dataset Landing Page Landing page for the dataset. information https://www.ncei.noaa.gov/data/commercial-radio-occultation-data/planetiq-rdr/archive/ HTTPS Download Direct Download (Dataset Files) Direct download for the dataset. download https://www.ncei.noaa.gov/data/commercial-radio-occultation-data/planetiq-rdr/doc/ HTTPS Download Direct Download (Documentation Files) Direct download for the dataset. information dataset Data are created at a private commercial company that was awarded an NOAA Data Buy for Radio Occultation Data. The data were sent from the private company to NOAA NCCF and then distributed to UCAR and then sent to NCEI for archival. These are raw data from PlanetiQ. Please see the archived documentation for reference or contact UCAR. PlanetiQ processor UCAR COSMIC Program processor 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 2023-07-25. See version control repository history for metadata change details.