|
URSI
The International Union of Radio Science (abbreviated ''URSI'', after its French name, french: link=no, Union radio-scientifique internationale) is one of 26 international scientific unions affiliated to the International Council for Science (ICSU). History and objectives URSI was officially created in 1919, during the Constitutive Assembly of the International Research Council (now ICSU), based on the earlier french: link=no, Commission Internationale de Telegraphie sans Fil (1913–1914) when the only radio communication system was radiotelegraphy. It has held a general assembly every three years from 1922. Fifty years ago URSI was one of the most important promoters of the International Geophysical Year. It co-sponsors the ''Radio Science'' journal (co-sponsored by the American Geophysical Union) as well as the ''Journal of Atmospheric and Solar-Terrestrial Physics''. URSI's original objective (to encourage "scientific studies of radiotelegraphy, especially those which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Reference Ionosphere
International Reference Ionosphere (IRI) is a common permanent scientific project of the Committee on Space Research (COSPAR) and the International Union of Radio Science (URSI) started 1968/69. It is the international standard empirical model for the terrestrial ionosphere since 1999. For a specified geographic location, time, and date, IRI provides average monthly values for electron density, electron temperature and ion temperature, and the molecular composition of the ions in the range of altitudes from 50 km to 2000 km. The latest standard is IRI-2012. A new version, IRI-2016, has since been released. The IRI has been extended to plasmasphere in the IRI-Plas model. History Karl Rawer, the first chairman of the ''URSI/COSPAR Task group on the IRI'' (1968–84) specified as goal of the IRI to establish a (monthly) average model of the terrestrial ionosphere based on reliably-measured data obtained with ground- and space-based methods. Contradictions between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Committee On Space Research
The Committee on Space Research (COSPAR) was established on October 3, 1958 by the International Council for Scientific Unions (ICSU). Among COSPAR's objectives are the promotion of scientific research in space on an international level, with emphasis on the free exchange of results, information, and opinions, and providing a forum, open to all scientists, for the discussion of problems that may affect space research. These objectives are achieved through the organization of symposia, publication, and other means. COSPAR has created a number of research programmes on different topics, a few in cooperation with other scientific Unions. The long-term project COSPAR international reference atmosphere started in 1960; since then it has produced several editions of the high-atmosphere code CIRA. The code "IRI" of the URSI-COSPAR working group on the International Reference Ionosphere was first edited in 1978 and is yearly updated. General Assembly Every second year, COSPAR c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Science
One way of outlining the subject of ''radio science'' is listing the topics associated with it by authoritative bodies. Union of Radio Science International (URSI) The International Union of Radio Science has several commissions corresponding to the following topics of interest: * Commission A – Electromagnetic metrology ** Antennas ** Atomic-based mechatronics ** Bioeffects and medical applications ** Electromagnetic compatibility (EMC) and EM Metrology, metrology ** High-frequency and Millimetre, millimeter wireless metrology ** Micropower impulse radar, Impulse radar ** Interconnector, Interconnect and packaging ** Materials ** Measurements and calibration in propagation ** Microwave to sub-millimeter measurements/standards ** Noise ** Quantum metrology and fundamental concepts ** Space plasma characterization ** Techniques for remote sensing ** Test facilities ** Tetrahertz (THz) metrology ** Time and frequency ** Time-domain metrology * Commission B – Fields and waves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Geophysical Union
The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of Earth, atmospheric, ocean, hydrologic, space, and planetary scientists and enthusiasts that according to their website includes 130,000 people (not members). AGU's activities are focused on the organization and dissemination of scientific information in the interdisciplinary and international fields within the Earth and space sciences. The geophysical sciences involve four fundamental areas: atmospheric and ocean sciences; solid-Earth sciences; hydrologic sciences; and space sciences. The organization's headquarters is located on Florida Avenue in Washington, D.C. History The AGU was established in December 1919 by the National Research Council (NRC) to represent the United States in the International Union of Geodesy and Geophysics (IUGG), and its first chairman was William Bowie of the United States Coast and Geodetic Survey (USCGS). For more than 50 years, it operated as an unincorporated affili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Atmospheric And Solar-Terrestrial Physics
The ''Journal of Atmospheric and Solar-Terrestrial Physics'' is a monthly peer-reviewed scientific journal covering the atmospheric and solar-terrestrial physics. It was established in 1950 as the ''Journal of Atmospheric and Terrestrial Physics'', obtaining its current name in 1997. It is published by Elsevier and sponsored by the International Union of Radio Science. According to the ''Journal Citation Reports'', the journal has a 2021 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 2.119. Its founding editor was Edward Victor Appleton, and the current editors are Mark Lester and D. Pancheva. References External links * Geophysics journals Atmospheric sciences journals Publications established in 1950 Elsevier academic journals Monthly journals S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Science
One way of outlining the subject of ''radio science'' is listing the topics associated with it by authoritative bodies. Union of Radio Science International (URSI) The International Union of Radio Science has several commissions corresponding to the following topics of interest: * Commission A – Electromagnetic metrology ** Antennas ** Atomic-based mechatronics ** Bioeffects and medical applications ** Electromagnetic compatibility (EMC) and EM Metrology, metrology ** High-frequency and Millimetre, millimeter wireless metrology ** Micropower impulse radar, Impulse radar ** Interconnector, Interconnect and packaging ** Materials ** Measurements and calibration in propagation ** Microwave to sub-millimeter measurements/standards ** Noise ** Quantum metrology and fundamental concepts ** Space plasma characterization ** Techniques for remote sensing ** Test facilities ** Tetrahertz (THz) metrology ** Time and frequency ** Time-domain metrology * Commission B – Fields and waves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Science
One way of outlining the subject of ''radio science'' is listing the topics associated with it by authoritative bodies. Union of Radio Science International (URSI) The International Union of Radio Science has several commissions corresponding to the following topics of interest: * Commission A – Electromagnetic metrology ** Antennas ** Atomic-based mechatronics ** Bioeffects and medical applications ** Electromagnetic compatibility (EMC) and EM Metrology, metrology ** High-frequency and Millimetre, millimeter wireless metrology ** Micropower impulse radar, Impulse radar ** Interconnector, Interconnect and packaging ** Materials ** Measurements and calibration in propagation ** Microwave to sub-millimeter measurements/standards ** Noise ** Quantum metrology and fundamental concepts ** Space plasma characterization ** Techniques for remote sensing ** Test facilities ** Tetrahertz (THz) metrology ** Time and frequency ** Time-domain metrology * Commission B – Fields and waves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Council For Science
The International Council for Science (ICSU, after its former name, International Council of Scientific Unions) was an international non-governmental organization devoted to international cooperation in the advancement of science. Its members were national scientific bodies and international scientific unions. In July 2018, the ICSU merged with the International Social Science Council (ISSC) to form the International Science Council (ISC). In 2017, the ICSU comprised 122 multi-disciplinary National Scientific Members, Associates and Observers representing 142 countries and 31 international, disciplinary Scientific Unions. ICSU also had 22 Scientific Associates. In July 2018, ICSU merged with the International Social Science Council (ISSC) to form the International Science Council (ISC) at a constituent general assembly in Paris. Mission and principles The ICSU's mission was to strengthen international science for the benefit of society. To do this, the ICSU mobilized the know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Nongovernmental Organization
An international non-governmental organization (INGO) is an organization which is independent of government involvement and extends the concept of a non-governmental organization (NGO) to an international scope. NGOs are independent of governments and can be seen as two types: ''advocacy NGOs'', which aim to influence governments with a specific goal, and ''operational NGOs'', which provide services. Examples of NGO mandates are environmental preservation, human rights promotions or the advancement of women. NGOs are typically not-for-profit, but receive funding from companies or membership fees. Many large INGOs have components of operational projects and advocacy initiatives working together within individual countries. The technical term "international organizations" describes intergovernmental organizations (IGOs) and include groups such as the United Nations or the International Labour Organization, which are formed by treaties among sovereign states. In contrast, INGOs are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Organisations Based In Belgium
Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old. The earliest written records in the history of science come from Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the Islamic Golden Age and later by the efforts of Byzantine Greek scholars who brought Greek man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Organizations
Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old. The earliest written records in the history of science come from Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the Islamic Golden Age and later by the efforts of Byzantine Greek scholars who brought Greek ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Organizations
Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by another antenna connected to a radio receiver. Radio is very widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing, and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track objects like aircraft, ships, spacecraft an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
