| Acronym |
Full name |
Comments |
| I/ O |
input/output
| computer |
| I2L |
integrated injection logic
| computer unit, transister replacement |
| I&T |
integration and test |
| I/F |
interface |
| IA |
international angstrom |
| IAA |
International Academy of Astronautics |
| IAAC |
International Antarctic Analysis Center |
Australia |
| IACOMS |
International Advisory Committee on Marine Sciences |
UNESCO |
| IAD |
Dulles International Airport |
| IADB |
interactive ancillary data base |
| IAEA |
International Atomic Energy Agency |
| IAG |
International Association of Geodesy
| IUGG |
| IAG |
Interagency agreement |
| IAG |
Instrumentation Advisory Group |
| IAGA |
International Association of Geomagnetism and Aeronomy |
IUGG |
| IAGW |
International Acoustic Gravity Waves |
| IAHS |
International Association of Hydrological Sciences
| IUGG |
| IAMAPS |
International Association of Meteorology and Atmospheric
Physics Sciences
| IUGG |
| IAMAS |
International Association of Meteorology and Atmospheric Sciences |
| IAP |
International Affiliates Program |
| IAPO |
International Association of Physical Oceanography |
IUGG |
| IAPSO |
International Association of Physical Sciences
of the Ocean |
IUGG |
| IARP |
International Atmospheric Research Program |
NAS/NRC |
| IAS |
indicated air speed |
| IASH |
International Association of Scientific Hydrology |
IUGG |
| IASP |
International Atmospheric Surveillance Program |
NAS/NRC |
| IASPEI |
International Association of Seismology and Physics
of the Earth's Interior |
IUGG |
| IATO |
Independent Acceptance Test Organization |
| IAU |
International Astronomical Union |
ICSU |
| IAV |
International Association of Volcanology |
IUGG |
| IAVCEI |
International Association of Volcanology and Chemistry
of the Earth's Interior |
IUGG |
| IAWSP |
Intergrated Aviation Wind Shear Plan |
| IBM |
International Business Machines Corporation
| A well-known computer manufacturer; generally referred
to by its initials only |
| IBM AT |
IBM Advanced Technology personal computer
| Known simply as an AT or an IBM PC AT |
| IBM PC |
| Generic term for IBM personal computers |
| IBM PS/2 |
| One class of IBM personal computers |
| IBM RT |
| The IBM RISC Technology computer system |
| IBRD |
International Bank for Reconstruction and Development
| World Bank |
| ICA |
International Central Archive |
| ICAMR |
Interdepartmental Committee on Applied Meteorological
Research |
| ICAO |
International Civil Aviation Organization |
| ICAR |
International Cooperation in Aviation Research |
| ICAS |
Interdepartmental Committee on Atmospheric Science
| FCST |
| ICAS |
Interdepartmental Communication for Atmospheric
Science
| established by the Federal Council for Science
& Technology in July 1959, Federal Coordinating Group/Meteorology |
| ICC |
Instrument Control Center |
| ICCP |
International Commission of Clouds and Precipitation |
| ICD |
Interface Control Document |
| ICDM |
International Commission on Dynamic Meteorology |
| ICE |
Intercomparison Experiment
| PAM |
| ICE |
Isoprene Closure Experiment |
| ICE |
Isoprene Canopy Experiment
| Oak Ridge, Tennessee |
| ICE |
International Cirrus Experiment
| now EUCREX |
| ICECOLORS |
Cold water component of WATERCOLORS
| NSF |
| ICES |
International Council for the Exploration of the
Sea |
ICSU/LOSPAR |
| ICEX |
Ice Experiment |
Convened to outline the major problems in sea and
land ice that could be addressed through satellite techniques |
| ICF |
Instrument Control Facility |
| ICFD |
Institute for Computational Fluid Dynamics
| University of Reading |
| ICG |
International Coordination Group |
ICITA |
| ICh |
Inter-Union Commission on the Lithosphere |
| ICITA |
International Cooperative Investigation of the
Tropical Atlantic |
| ICh |
Inter-Union Commission on the Lithosphere |
| ICITA |
International Cooperative Investigation of the
Tropical Atlantic |
| ICJOB |
IBM-to-Cray Interactive Interface |
| ICMAP |
CSMP
| now called CMAP |
| ICMSSR |
Interagency Committee for Meteorological Services
and Supporting Research |
| ICMUA |
IAMAS Commission on the Meteorology of the Upper
Atmosphere |
| ICN |
international communications network |
| ICO |
Interagency Committee on Oceanography |
| ICO |
Initial Operating Capability |
| ICPM |
International Commission on Polar Meteorology |
IAMAP and IUGG |
| ICS |
Intercom System |
| ICS |
Interdisciplinary Climate Systems |
| ICSI |
International Commission on Snow and Ice |
| ICSU |
International Council of Science |
| ICWF |
Interactive Computer Worded Forecast
| developed at the NWS Techniques Development Laboratory |
| ICWG |
International Coordinating Working Group |
| ICWWP |
Interagency Committee for World Weather Programs |
GARP |
| ID |
inside diameter |
| IDA |
Institute for Defense Analysis |
DOD |
| IDASS |
Integrated Data Assimilation/Sounding System |
| IDB |
immediate direct broadcast |
| IDCS |
image-dissector camera system |
| IDD |
Internet Data Distribution
| A software system developed by Unidata for distributing
real-time data over the Internet. See also Local Data Manager (LDM) |
| IDEAS |
Instrumentation Development and Education in Airborne
Science |
| IDD |
interface definition document |
| IDEA Lab |
Interactive's Digital Environmental Analysis Lab
| An interactive computer lab organized by the Naval
Postgraduate School, Monterey, California |
| IDI |
Instrumentation Development and Intercomparisons
| AKP |
| IDL |
Interactive Display Language |
| IDL |
Interactive Data Language
| A commercial product from Research Systems, Inc. |
| IDL |
Interface Definition Language
| an industry standard defined by the Object Management
Group |
| IDNDR |
International Decade for Natural Disaster Reduction |
| IDNHR |
International Decade of Natural Hazard Reduction |
| IDOE |
International Decade of Ocean Exploration |
NSF, 1970-1979 |
| IDR |
incremental design review |
| IDS |
interdisciplinary study |
| IDS |
International Data Service
| A data stream that is part of the NWS Family of
Services. IDS includes international data products analogous to the domestic
products on the DDS |
| IEA |
International Energy Agency |
London, England |
| IEE |
Institute of Electrical Engineers |
| IEEE |
Institute of Electrical and Electronic Engineers |
Formerly IRE (Institute of Radio Engineers) |
| IEF |
Inventory Exchange Format |
| IEIS |
Integrated Earth Information Server
| An on-line repository of information pertaining
to Earth-related sciences |
| IERS |
International Earth Rotation Service |
| IF |
intermediate frequency |
| IF |
in-flight |
| IFA |
Intensive Flux Array |
| IFAW |
International Fund for Animal Welfare |
| IFC |
Intensive Field Campaign |
| IFC |
InFlight Black Body Calibrator |
| IFD |
indirect flare detector |
| IFD |
in-flight deployment
|
| IFEOS |
International Forum on Earth Observations Using
Space Station Elements |
| IFIAS |
International Federation of Institutes for Advanced
Study |
| IFOV |
instantaneous field of view |
| IFLOWS |
Integrated Flood Observing and Warning System |
| IFR |
instrument flight rules |
| IFREMER |
Institut Francais Re'checche pour L'Exploitation
de la Mer |
French research institute for ocean utilization |
| IFYGL |
International Field Year for the Great Lakes |
| IGAC |
International Global Atmospheric Chemistry |
| IGACP |
International Global Atmospheric Chemistry Program |
| IGB |
International Geophysical Bulletin |
| IGBP |
International Geosphere-Biosphere Program
| ICSU |
| IGB |
International Geophysical Bulletin |
| IGC |
International Geophysical Cooperation |
1939 |
| IGE |
international group elements |
| IGFA |
Intergovernmental Funding Agency |
| IGOSS |
Integrated Global Ocean Station System |
GARP |
| IGPO |
International GEWEX Program Office |
| IGPP |
Institute of Geophysics and Planetary Physics |
University of California, La Jolla |
| IGU |
International Geographical Union |
| IGW |
internal gravity waves |
| IGY |
International Geophysical Year |
1957-1958 |
| IHOP |
International H2O Project |
| IHOP 2002 |
International H2O Project 2002 |
| IIASA |
International Institute for Applied Systems Analysis |
Austria |
| IIOE |
International Indian Ocean Expedition |
| IIPS |
Interactive Information and Processing Systems
[for Meteorology, Oceanography, and Hydrology]
| An annual conference sponsored by the AMS |
| IIT |
Illinois Institute of Technology |
| IITA |
Information Infrastructure Technology and Applications
| a UCAR program |
| IIV&V |
independent integration, verification, and validation |
| IIWG |
International Investigator Working Group |
| ILEC |
International Lake Environment Committee |
| ILI |
Instrumentation and Laboratory Improvement
| An NSF grant program |
| ILP |
International Lithosphere Programme |
| ILS |
instrument landing system |
| ILSS |
Integrated Logistics Support System |
| image |
| A two-dimensional array of data with values at
each element of the array related to an intensity or a color. |
| IMAGe |
Institute for Mathematics Applied to the Geosciences |
| IMAGES |
intermediate model for the annual and global evolution
of species |
| IMAGES |
Intermediate Model for the Annual and Global Evolution
of Interactive Systems |
| IMAGES |
Intermediate Model of Global Evaluation of Species |
| IMC |
International Meteorological Center |
| IMD |
Indian Meteorology Department |
| IMEP |
International Meteorological Educational Program |
NAS/NRC, see IARP |
| IMF |
interplanetary magnetic field |
| IMOS |
Inadvertent Modification of the Stratosphere |
| IMP |
Interface message processor ARPANET |
| IMP |
Interplanetary Monitoring Platform |
| IMPROVE II |
Improvement of Cloud & Precipitation Physics in
Mesoscale Models Ð 2nd generation |
| IMS |
International Magnetospheric Study
| NSF |
| IMS |
Information Management Service |
| IMS |
information management system |
| IMSL |
International Mathematical and Statistical Library |
| IMSP |
International Meteorological Service Program
| NAS/NRC, see IARP |
| IMU |
Inertial Measurement Unit |
| INDEX |
Indian Ocean Experiment
| 1975 |
| INDOEX |
Indian Ocean Experiment |
| information server |
Software designed on the client/server model to
allow people to share information (data, applications, images, etc) over
the Internet
| Some standard information server applications include
FTP, Gopher, and WWW |
| INFOTERRA |
international environmental research and referral
service of UNEP |
| ingester |
In the context of the Unidata LDM, a program such
as pqing that reads bytes from a data stream and creates data products |
| injection time In the context of the Unidata LDM,
time when a data product is first injected into the IDD, an attribute of
the data product that is preserved as it gets distributed to other IDD nodes |
This should really be called the "injection time" |
| INO |
Institute for Naval Oceanography
| Bay St. Louis, Mississippi, a defunct organization
once managed by UCAR |
| INPA |
Instituto Nacional de Pesquisas da Amazonia
| Manaus, Amazonas, Brazil |
| INPE |
Instituto de Pesquisas Espaciais
| Brazilian National Institute of Space Research
in Sao Paulo, Brazil |
| input |
| The quantity to be measured (or modulated, or detected,
or operated upon) that is received by an instrument. |
| INQUA |
International Quaternary Research Association or
International Association on Quaternary Research |
1965 |
| INS |
Inertial Navigation System
| GARP |
| INSAT |
Indian National Satellite System |
India's geosynchronous satellite |
| INSTAAR |
Institute for Arctic and Alpine Research |
University of Colorado, Boulder |
| INSTEP |
Indonesian Seas Flow Through Experiment |
| INSU |
National Institute for Sciences of the Universe
| French |
| INTELSAT |
International Telecommunications Satellite |
| interface |
A common boundary between software systems or pieces
of equipment
| a user interface is the software layer that sends
messages to and receives commands from whomever is at the terminal/keyboard |
| Internet |
The collection of all interconnected computer networks
around the globe that use the TCP/IP protocol |
For Unidata sites, NSFnet is the main connection
to the Internet |
| INTEX |
NASA's Intercontinental Chemical Transport Experiment |
|
| INU |
inertial navigation unit |
GARP |
| inversion |
| A departure from the usual decrease or increase
with altitude of the value of an atmospheric property. |
| inversion layer |
| The layer through which this departure occurs. |
| I/O |
input/output |
| IOC |
Intergovernmental Oceanographic Commission
| UNESCO |
| IOC |
International Ozone Commission |
| IOC |
inception of contract |
| IOC |
initial operating capability |
| IOP |
intensive observation period |
| IOS |
Input/Output Subsystem |
| IOS |
interplanetary scintillation |
| IP |
Internet protocol
| The network layer for the TCP/IP protocol suite
widely used to define how information is passed across the Internet |
| IPC |
Institute of Paper Chemistry |
| IPC |
Instrument Processing Center |
| IPCC |
Intergovernmental Panel on Climate Change
| WMO/UNEP |
| IPEI |
Ionospheric Plasma and Electrodynamics Instrument |
| IPM |
interpersonal messaging |
| IPMMI |
International Photolysis Measurements and Modeling
Intercomparison |
| IPMP |
Intellectual Property Management Program (UCAR) |
| IPO |
International Programs Office |
NSF |
| IPOC |
International Partner Operations Center |
| IPOMS |
International Polar-Orbiting Meteorological Satellite
Group |
| ips |
inches per second |
Not used in NCAR publications. |
| IPT |
Integrated Product Teams |
| IPU |
Instrument Processor Unit |
| IQSY |
International Years of the Quiet Sun |
1964-1965 |
| IQSY/EX |
International Quiet Years of the Sun Experiments |
India |
| IR |
Infrared |
| IR |
infrared |
| IR&D |
internal research and development |
| IR-RAD |
Infrared Radiometer |
| IRAC |
Interdepartmental Radio Advisory Committee |
| IRAS |
Infrared Astronomical Satellite |
| IRC |
International Research Council |
Superseded by ICSU |
| IRC |
International Radiation Commission
| IAMAP |
| IRCAT |
Infrared radiometer to detect (CAT) horizontal
temperature gradients |
| IRCTR |
International Research Centre for Telecommunication-transmission
and RADAR
| RADAR is weather related |
| IRD |
Instrument Requirement Document |
| IRD |
interface requirements document |
| IRE |
Institute of Radio Engineers |
Became IEEE |
| IRH |
Infrared hygrometer |
| IRI |
Interagency Research Internet |
| IRI |
International Research Institute for Climate Prediction |
| IRICP |
International Research Center for Climate Prediction |
| IRIG |
Inertial Rate (MIT) or Reference (NASA) Integrating
Gyroscope |
| IRIG |
Inter-range Instrumentation Group
| USAF |
| IRIS |
infrared interferometer spectrometer |
| IRIS |
Incorporated Research Institutions for Seismology
| A consortium of 90+ institutions serving earth
scientists' needs |
| IRIS |
Italian Research Interim Stage |
| IRJE |
Internet remote job entry |
| IRLS |
interrogation & reading location system |
| IRMS |
Isotope Ratio Mass Spectrometer |
| IRR |
Integrated Requirements Review |
| IR-RAD |
infrared radiometer |
| IRS |
Indian Remote-sensing Satellite |
| IRS |
Information Retrieval Service
| ESA |
| IS |
Institute Sponsors |
| ISA |
Instrument Society of America |
| ISAMS |
Improved stratospheric and mesospheric sounder |
NASA/UARS |
| ISAS |
Institute of Space and Astronautical Science |
Japan |
| ISBN |
International Standard Book Number |
| ISCAT |
Investigation of Sulfur Chemistry in Antarctic Troposphere |
|
| ISCCP |
International Satellite Cloud Climatology Program |
GEWEX |
| ISDN |
Integrated Services Digital Network |
| ISF |
In-Situ Sensing Facility |
NCAR, EOL |
| ISF |
International Symposium on Forecasting |
| ISFF |
Integrated Surface Flux Facilities |
| ISG |
Immersion Sensing Group |
FOF |
| ISIS |
International Satellites for Ionospheric Studies |
NASA |
| ISLSCP |
International Satellite Land-Surface Climatology
Project |
GEWEX |
| ISM |
in situ measurements
| ATD used ISM for In-Situ Measurements Project |
| ISMG |
International Scientific and Management Group
| GARP, WMO/IESU |
| ISMP |
In-Situ Measurements Project |
| ISMRM |
Integrated Soil Moisture Retrieval Models |
| ISNAR |
International Service for National Agricultural
Research |
| ISO |
International Standards Organization
| Established to promote international standards
in scientific and technological fields |
| ISOC |
Integrated Science Operations Center |
| isolated system |
| A thermodynamic system that does not interact in
any way with its surroundings. |
| ISOS |
International Southern Ocean Study |
| ISP |
Internet Service Provider |
| ISPAN |
Information Stream Project for AWIPS NOAAport
| An experimental data stream available from FSL |
| ISPRA |
| A village in Italy, nearest town is Varesse where
The Joint Research Center of the Commission for the European Communites
is located |
| ISR |
individual schedule request |
| ISRDB |
Incoherent Scatter Radar Data Base |
| ISRIC |
International Soil Reference and Information Centre |
| ISRO |
Indian Space Research Organization
| India |
| ISS |
Integrated Sounding System
| UCAR, NCAR, ATD |
| ISS |
Information Support Services |
| ISS |
Institute for Space Studies
| NASA |
| ISSE |
Institute for the Study of Society and the Environment |
| ISSN |
International Standard Serial Number |
| ISSS |
International Society of Soil Science |
| IST |
Instrument Support Terminal |
| ISTP |
International Solar Terrestrial Program |
NCAR's ATD uses International Solar Terrestrial
Physics Program |
| ISTS |
Institute for Space and Terrestrial Science |
| ISU |
intermediate storage unit |
| ISUSS |
Integrated Surface and Upper-air Sounding System |
SSSF |
| ISWS |
Illinois State Water Survey |
| ISY |
International Space Year |
1992 |
| I&T |
integration and test |
| IT |
Information Transport |
| IT |
Information Technology
| UCAR, F&A |
| ITC |
Information Technology Council
| Chairman, Jack Fellows, UCAR |
| ITCT |
Inter-Continental Transport and Chemical Transformation |
| ITCZ |
intertropical convergence zone |
| ITIR |
Imaging Thermal Infrared |
| ITIR |
Intermediate Thermal Infrared Radiometer |
| ITM |
Ionosphere-Thermosphere-Mesosphere |
| ITO |
independent test organization |
| ITOS |
Improved Tiros Operational Satellite |
| ITPR |
Infrared temperature profile radiometer |
Nimbus F |
| ITR |
Institute Technical Reports |
UCAR, NCAR, HAO |
| ITS |
Instrument Technical Specification |
guides the HIRDLS construction team at Lockheed
Martin |
| ITS/OT |
Institute for Telecommunications |
USDC/Boulder Laboratories |
| ITU |
International Telecommunications Union |
| ITVF |
Integration, Test, and Verification Facility |
| ITVM |
Integration, test, and verification model |
| ITWIS |
Integrated Terminal Weather Information System |
| ITWS |
Integrated Terminal Weather System |
| IUCR |
International Union of Crystallography |
ICSU |
| IUCRM |
Inter Union Commission on Radio Meteorology |
URSI/IUGG |
| IUE |
International Ultraviolet Explorer |
1976, NASA, ESRO and Science Research Council of
University of California |
| IUGG |
International Union of Geodesy and Geophysics |
UGGI in French ICSU |
| IUGS |
International Union of Geological Sciences |
ICSU |
| IUPAB |
International Union of Pure and Applied Biophysics |
ICSU |
| IUPAC |
International Union of Pure and Applied Chemistry |
ICSU |
| IUPAP |
International Union of Pure and Applied Physics |
ICSU |
| IUPS |
International Union of Physiological Sciences |
ICSU |
| IUTAM |
International Union of Theoretical and Applied
Mechanics |
ICSU |
| IV&V |
independent verification and validation |
| IVVS |
Interactive Verification and Visualization System
(RTVS) |
| IWC |
ice water content |
| IWG |
Implementation Working Group
| A Unidata advisory committee; disbanded in 1992 |
| IWGDMGC |
Interagency Working Group on Data Management for
Global Change |
| IWGGCDM |
International Working Group on Global Change and
Data Management |
| IWGMFS |
International Working Group on Magnetic Field Satellites |
| IWRA |
International Water Resources Association |
| IWRS |
Improved Weather Reconnaissance System |
