A glossary of commonly used terms and acronyms in the Earth science community and NSF Unidata ecosystem, covering terminology found in NSF Unidata documentation, support discussions, software, data services, and community activities. Historical terms are also included to help readers understand legacy technologies and older materials.

A   |   B   |   C   |   D   |   E   |   F   |   G   |   H   |   I   |   J   |   K   |   L   |   M   |   N   |   O   |   P   |   Q   |   R   |   S   |   T   |   U   |   V   |   W   |   X   |   Y   |   Z

 

A

AAASAmerican Association for the Advancement of Science
ACADISAdvanced Cooperative Arctic Data and Information Service
ACARSAircraft Communications Addressing and Reporting System.
ADAnalog-to-Digital
ADAGUCAtmospheric Data Access for the Geospatial User Community
ADDEAbstract Data Distribution Environment. A McIDAS remote data access system.
ADaMAlgorithm Development and Mining System
ADASARPS Data Analysis System
ADLAlexandria Digital Library
AGUAmerican Geophysical Union
AIHECAmerican Indian Higher Education Consortium
AI/MLArtificial Intelligence/Machine Learning
AMDARAircraft Meteorological Data Relay
AMPSAntarctic Mesoscale Prediction System
AMSAmerican Meteorological Society
AOGCMAtmosphere-Ocean General Circulation Model
AOIAutomated Operator Interface
AONArctic Observing Network
APIApplication Program Interface
APRDCAsia Pacific Data Research Center
ARLAir Resources Laboratory
Arc HydroGIS suite of tools for creation, manipulation, and display of water resources within the ESRI ArcGIS environment.
ARMAtmospheric Radiation Measurement
ARPSAdvanced Regional Prediction System
ASMETAfrican Satellite Meteorology Education and Training
ASOSAutomated Surface Observing System
ATCFAutomated Tropical Cyclone Forecasting
ATMDivision of Atmospheric Sciences, a division of the NSF
AVNAviation Model at NCEP
AWCAviation Weather Center
AWIPSAdvanced Weather Interactive Processing System
AWIPS IINext generation of the Advanced Weather Interactive Processing System software.
AWSAWS Convergence Technologies, Inc.
AWSAmazon Web Services

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B

BGPBorder Gateway Protocol
BMRCBureau of Meteorology Research Centre, Australia
BPEL4WSBusiness Process Execution Language for Web Services
BRANBoulder Research and Administrative Network
BUFRBinary Universal Form for the Representation of Meteorological Data

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C

CADISCooperative Arctic Data and Information Service
CAIDISCooperative Association for Internet Data Analysis
CAPSCenter for the Analysis and Prediction of Storms, University of Oklahoma
CAREThe CARE data principles are Collective benefit, Authority to control, Responsibility, and Ethics
CASACollaborative Adaptive Sensing of the Atmosphere
CAVECommon AWIPS Visualization Environment
CAVECave Automatic Virtual Environment
CDCompact disk
CDCClimate Diagnostics Center
CDFCommon Data Form
CDICyber-enabled Discovery and Innovation Initiative
CDMCommon Data Model
CDICyber-enabled Discovery and Innovation
CDPCommunity Data Portal
CEOPCoordinated Enhanced Observing Period
CFNetCDF Climate and Forecast (CF) Metadata Convention
CICyberinfrastructure
CIESINConsortium for International Earth Science Information Network
CILSSComité permanent inter-État de lutte contre la sécheresse au Sahel (Permanent Interstate Committee for drought control in the Sahel)
CISLComputation and Information Systems Laboratory at NCAR
CIMSSCooperative Institute for Meteorological Satellite Studies, University of Wisconsin-Madison
CLASSComprehensive Large Array-data Stewardship System
CMAChina Meteorological Administration
CMASCommunity Modeling and Analysis System
CMCCanadian Meteorological Centre
CMIP3Multi-model dataset used for the IPCC Fourth Assessment
CNRItalian National Research Council
COAMPSCoupled Ocean/Atmosphere Mesoscale Prediction System
CODIACCooperative Distributed Interactive Atmospheric Catalogue
COLACenter for Ocean-Land-Atmosphere
COMETCooperative Program for Operational Meteorology Education and Training
CONDUITCooperative Opportunity for NCEP Data Using IDD Technology
CONUSContinental US
COSMICConstellation Observing System for Meteorology, Ionosphere and Climate
CPTECCentro de Previsão de Tempo e Estudos Climáticos
CRAFTCollaborative Radar Acquisition Field Test
CSMFClimate System Modeling Federation
CSSCascading Style Sheets
CSWRCenter for Severe Weather Research
CUAHSIConsortium of Universities for the Advancement of Hydrological Science, Inc.
CVSConcurrent Version System
CyRDASCyberinfrastructure for Research, Development and Education in the Atmospheric Sciences

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D

DAML-SDAML Services, DAML-based Web Service Ontology
DAMLDARPA Agent Markup Language
DAMOCLESDeveloping Arctic Modeling and Observing Capability for Long-term Environment Studies
DAPData Access Protocol
DAP4Data Access Protocol version 4
DARPADefense Advanced Research Projects Agency
DARTData Assimilation Research Testbed
DCPData Collection Platform
DLESEDigital Library for Earth System Education
data feedTo the Unidata LDM, a sequence of data products, all of the same feed type, injected into the IDD from a single data source.
DNGDownscaled Numerical Guidance
DOCTYPEDocument Type
data productTo the Unidata LDM, a unit of data with an associated feed type, product ID, injection time, origin, and sequence number.
DORADEDOppler RAdar Data Exchange Format
data sourceTo the Unidata LDM, a remote provider of data products.
DUEDivision of Undergraduate Education, NSF
data streamTo the Unidata LDM, a sequence of bulletins all of the same feed type broadcast from a single data source. Once the bulletins are converted into data products, the result is called a data feed.
DDSDomestic Data Services
decoderTo the Unidata LDM, a program that converts transmitted data products into a different form more suitable for use by applications. Decoders often combine multiple products into a single decoded file.
DIDAKTData Integrated Documents and Knowledge Tools
DIFDirectory Interchange Format
DIFAXDigital Facsimile (a data stream of digitized maps formerly provided by the NWS)
DIMESDIstributed MEtadata System from George Mason University
DLDigital Library
DMACData Management Analysis Center
DODSDistributed Oceanographic Data System, former name for the discipline-specific National Virtual Oceanographic Data System and the discipline-independent access protocols now known as OPeNDAP .
DQCDataset Query Capabilities - THREDDS XML Document type that describes the possible ways that an end-user can choose dataset subsets.
DVB-S, DVB-S2Digital Video Broadcasting by Satellite (First & Second Generations)

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E

EarthCubeEarthCube is a National Science Foundation initiative to create a data and knowledge management system for the 21st century.
EC2 
(Amazon Web Service)Amazon Elastic Compute Cloud
ECMWFEuropean Center for Medium range Weather Forecasting
EDEXAWIPS Environmental Data EXchange
EDREnvironmental Data Record
EGUEuropean Geosciences Union
EHREducation and Human Resources, a division of the NSF
EMCEnvironmental Modeling Center
ENSOEl Nino Southern Oscillation
EOLEarth Observing Laboratory
EOSEarth Observing System
EPSCEuropean Planetary Science Congress
EPSCoRExperimental Program to Stimulate Competitive Research
ERDDAPData server created by NOAA (not an acronym)
EREEnvironmental Research and Education
ESGEarth System Grid
ESIGEnvironmental and Societal Impacts Group, former NCAR program
ESIILEnvironmental Data Science Innovation and Inclusion Lab
ESIPEarth System Information Partners Federation
ESMFEarth System Modeling Facility
ESMLEarth Science Markup Language
ESRIEnvironmental Systems Research Institute
ESRLEarth System Research Laboratory (formerly FSL)
ESSEarth Systems Science
ESSIEarth and Space Science Informatics
ESTOFSExtratropical Storm surge and Tide Operational Forecast System
EUMETSATEuropean Organisation for the Exploitation of Meteorological Satellites
Exelis Visual Information SoutionsFormerly ITTVIS. Makers of the IDL and ENVI software packages.

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F

FACEFlorida Area Cirrus Experiment
FAIRThe FAIR data principles are Findable, Accessible, Interoperable, and Reusable
FESFluid Earth Systems
FFRDCFederally Funded Research and Development Center
FGDCFederal Geographic Data Committee
FIMFlow-following finite-volume Icosahedral Model (global model)
FNMOCFleet Numerical Meteorology and Oceanography Center
FOSFamily of Services, a collection of data streams from NWS
FMRCFederation Mercury Search Engine
FSLForecast Systems Laboratory NOAA.renamed Earth System Research Laboratory (ESRL)
FTPFile Transfer Protocol

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G

GALEONGateway or Geo-interface for Air Land Earth Ocean netCDF
GBGigabyte
GCMDGlobal Change Master Directory
GDSGrADS/DODS Server
GEMGlobal Environmental Multiscale Model
GEMPAKGeneral Meteorological Package
GEOGeosciences Directorate, division of the NSF
GEONThe GEOsciences Network
GEON IDVThe GEON Integrated Data Viewer is an extension of the Unidata IDV for exploration of complex three-dimensional data in geophysics.
GFSGlobal Forecast System
GEOSSGlobal Earth Observation System of Systems
GISGeographic Information Systems
GINIGOES Ingest & NOAAPort Interface
GLMGlobal Lightning Mapper (GOES-16+ satellite instrument)
GMAOGlobal Modeling and Assimilation Office (NASA)
GMESGlobal Monitoring for Environment and Security
GMLGeography Markup Language
GNOMEGNU Network Object Model Environment
GODAEGlobal Ocean Data Assimilation Experiment
GO-ESSPGlobal Organization for Earth System Science Portal
GOESGeostationary Operational Environmental Satellite, Environmental Satellite
GOESGeostationary Operational Environmental Satellite
GPSGlobal Positioning System
GRIBGridded Binary (Editions 1 and 2)
GRIDComputational Grids
GRIDSPECA proposed CF extension for the annotation of complex Earth system grids.
GSDGlobal Systems Division (NOAA)
GrADSGrid Analysis and Display System
GUIGraphical User Interface

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H

HBCUHistorically Black Colleges and Universities
HDFHierarchical Data Format
HDF4Hierarchical Data Format, version 4
HDF5Hierarchical Data Format, version 5
HDSHigh Resolution Data Service
HPCHydrometeorological Prediction Center (NOAA)
HPCCHigh Performance Computing & Communications
HPSSHigh Performance Storage System
HRRRHigh Resoluton Rapid Refresh
HTMLHypertext mark-up language
HTTPHypertext Transfer Protocol
HWRFWeather Research and Forecast System for Hurricane Prediction
HYDRAHYperspectral-viewer for Development of Research Applications
HYDRO-NEXRADA system that allows access to the vast archives and real time information collected by the national network of NEXRAD radars.
HYRAXOPeNDAP Data Server

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I

IAIInter-American Institute for Global Change Research
ICARTTInternational Consortium for Atmospheric Research on Transport and Transformation
IDDInternet Data Distribution System
IDLInteractive Data Language
IDMSIntegrated Data Management System
IDSInternational Data Services
IDVIntegrated Data ViewerIHOP
IIPSInternational Conference on Interactive Information Processing Systems for Meteorology, Oceanography, and Hydrology
IMAAInstitute of Advanced Methodologies for Environmental Analysis
INGRIDName for an online data system at the Lamont -Doherty Earth Observatory. It's not an acronym.
INPEInstituto de Pesquisas Espaciais (National Institute of Space Research in Sao Paulo, Brazil)
IPAIntergovernmental Personnel Act
IOOSIntegrated Ocean Observing System
IPAMMImpact of Proposal and Award Management Mechanisms
IPCCIntergovernmental Panel on Climate Change
IPRCInternational Pacific Research Center
IPYInternational Polar Year
IRIInternational Research Institute for Climate Prediction
IRISIncorporated Research Institutions for Seismology
ISOInternational Standards Organization
ISO TC211International Standards Organization TC211 , a spatial data standard
ISSEInstitute for the Study of Society and the Environment, former NCAR program
ITInformation Technology
ITCInternational Training Center
ITRInternational Technology Research
ITTVISITT Visual Information Solutions (now Exelis Visual Information Solutions). Makers of the IDL and ENVI software packages.

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J

JavaAn object-oriented, platform-independent language from Sun, now widely used to create applets and applications for the Internet
JHTJoint Hurricane Testbed
JMSJava Messaging Service
JODIJournal of Digital Information
JOSSJoint Office for Science Support
JPLJet Propulsion Laboratory (NASA)
JPSSJoint Polar Satellite System. Polar-orbiting operational environmental satellite system operated by NOAA and NASA.

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K

KDIKnowledge and Distributed Intelligence
KMLKeyhole Markup Language
KMZCompressed KML
KNMIKoninklijk Nederlands Meteorologisch Instituut (Royal Netherlands Meteorological Institute)

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L

LASLive Access Server
LatencyIn the context of the Unidata LDM, the delay in delivery of a data product since it was first injected from a data source site.
LDEOLamont-Doherty Earth Observatory
LDMLocal Data Manager
LEADLinked Environments for Atmospheric Discovery
LEVEL IINWS WSR-88D Level II Radar Data
LEVEL IIINWS WSR-88D Level III Radar Data
LGPL(GNU) Lesser General Public License
LLCLimited Liability Company

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M

MADISMeteorological Assimilation Data Ingest System
MASHUPA website or application that combines content from more than one source into an integrated experience.
MATLABA numerical computing environment and programming language.
McIDASMan-computer Interactive Data Access System
McIDAS-VA Java-based version of McIDAS based on the SSEC-developed VisAD software and the Unidata Integrated Data Viewer (IDV) reference application and library.
METARMeteorological Aviation Reports
MetAppsMeteorological Applications Task Force
MetadataData about (behind) the data (the attributes associated with the data).
MeteoForumPilot project for advanced international meteorological training center capabilities.
MLMachine Learning
MM5Mesoscale Model, version 5
MODISModerate Resolution Imaging Spectroradiometer
MVCModel-View-Controller. An architectural pattern used in software engineering.
MyMan-year

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N

NAMENorth American Monsoon Experiment
NAPANational Academy of Public Administration
NASANational Aeronautics and Space Administration
NAWIPSNational Centers Advanced Weather Interactive Processing Systems
NCARNational Center for Atmospheric Research
ncBrowseNetCDF File Browser
NCDCNational Climatic Data Center
NCEPNational Centers for Environmental Prediction (NOAA)
NCFNetwork Control Facility
NcMLThe netCDF Markup Language
NCONCEP Central Operations
NCONetCDF Operators
NCOSRVNCO Data Server
NCSANational Center for Supercomputing Applications
NCWANetCDF Weighted Average (one of the 12 NCO utilities)
NCWCPNOAA Center for Weather and Climate Prediction
NDAPNational Digital Archives Project
NetCDFNetwork Common Data Form
NDFDNational Digital Forecast Database
NDENPOESS Data Exploitation
NEONNational Ecological Observatory Network
NESDISNational Environmental Satellite, Data, and Information Service
NEXRADNext Generation Weather Radar
NGDCNational Geophysical Data Center
NGLDMNext-Generation LDM
NHCNational Hurricane Center
NIDSNEXRAD Information and Data System
NLDNNational Lightning Detection Network
NLRNational LambdaRail
NMFSNational Marine Fisheries Service
NMHSNational Meteorological and Hydrological Service
NMMNonhydrostatic Mesoscale Model
NMAPAn integrated display and product generation GUI environment
NMQNational Mosaic and Multisensor QPE (NMQ) Project
NNTPNetwork News Transfer Protocol
NOAANational Oceanic and Atmospheric Administration
NOAAPortNOAA's broadcast data dissemination system
NOCNaval Oceanographic Command
NOGAPSU.S. Navy Operational Global Atmospheric Prediction System
NODCNational Oceanographic Data Center
NOMADSThe NOAA Operational Model Arvhive and Distribution System
NWSTGNational Weather Service Telecommunications Gateway
NMINSF Middleware Initiative
NSDLNational Science Digital Library (NOAA)
NSFNational Science Foundation
NPOESSNational Polar-Orbiting Environmental Satellite System
NSIDCNational Snow and Ice Data Center
NRLNaval Research Laboratory
NSPPONational Space Organization (Taiwan)
NSSLNational Severe Storms Laboratory (NOAA)
NTSBNational Transportation Safety Board
NVODSNational Virtual Ocean Data System (formerly part of DODS)
NWPNumerical Weather Prediction
NWRTNational Weather Radar Testbed
NWSNational Weather Service (NOAA)

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O

OAIOpen Archives Initiative
OAROffice of Oceanic and Atmospheric Research
OCONUSOff CONUS
ODCOpen Data Consortium Project to Standardize Data Distribution
OFCMOffice of the Federal Coordinator for Meteorology
OGCOpen Geospatial Consortium
OGSAOpen Grid Services Architecture
OMBOffice of Management and Budget
OPeNDAPOpen Source Project for a Network Data Access Protocol (formerly DODS)
OT&EOperational Test and Evaluation

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P

PACIPartnership for Advanced Computational Infrastructure
PAGEProgram for the Advancement of Geoscience Education, the precursor of DLESE
PCMDIProgram for Climate Model Diagnosis and Intercomparison
PDAPersonal Digital Assistant
PIDPacket ID
PIREPartnerships for International Research and Education
PMELPacific Marine Environment Laboratory (NOAA)
POESPolar-Orbiting Operational Environmental Satellite
PPSPublic Product Service
PRCPeople's Republic of China
PythonProgramming language created by Guido van Rossum in 1990

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Q

QCQuality Control
QPEQuantitative Precipitation Estimation

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R

RAIDRedundant Array of Independent Disks
RALResearch Applications Laboratory
RAMADDARepository for Archiving, Managing, and Accessing Diverse DAta
RAMSRegional Atmospheric Modeling System
RENCIRenaissance Computing Institute
RESTRepresentational State Transfer
RFCRiver Forecast Center
RICORain in Cumulus Over the Ocean
RORadio Occultation
ROCRepublic of China
RosettaA web-based service to transform ASCII output into Climate and Forecast (CF) compliant netCDF files
RSMRegional Spectral Model
RSSReally Simple Syndication
RTMAReal Time Mesoscale Analysis
RTOFSReal Time Ocean Forecast System

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S

S3Amazon Simple Storage Service
SAOSurface Airways Observations
SBNSatellite Broadcast Network (NOAAPort)
SGCIScience Gateway Community Institute
SCOOPSURA Coastal Ocean Observing and Prediction
SGERSmall Grants for Exploratory Research
SHEFStandard Hydrologic Exchange Format
SINOTSInteroperability System for supporting the Italian Scientific Community working in Earth Observations from Space
SISScientific Information System (sometimes used in contrast to GIS)
SMBShanghai Meteorological Bureau
SOAService Oriented Architecture
SOAPSimple Object Access Protocol
SOARSSignificant Opportunities in Atmospheric Research and Science
SPCStorm Prediction Center
SPIEInternational Society for Optical Engineering
SREFShort-Range Ensemble Forecast
SSECSpace Science and Engineering Center of the University of Wisconsin at Madison
STIShanghai Typhoon Institute
STELLAStructural Thinking Experimental Learning Laboratory with Animation
STEMScience, Technology, Engineering, and Mathematics
SuomiNetAn international network of GPS receivers, configured and managed to generate near real-time estimates of precipitable water vapor in the atmosphere, total electron content in the ionosphere, and other meteorological and geodetic information.
Suomi NPPSuomi National Polar-orbiting Partnership
SURASoutheastern Universities Research Association
SWEETSemantic Web for Earth and Environmental Terminology
SWFSCSouthwest Fisheries Science Center

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T

TACCTexas Advanced Computing Center
TAMDARTropospheric Airborne Meteorological Data Reporting
TBTerabyte
TDRTHREDDS Data Repository, a precursor to RAMADDA
TDSTHREDDS Data Server
THORPEXTHe Observing system Research and Predictability EXperiment
T-RexTerrain-induced Rotor Experiment
THREDDSThematic Real-time Environmental Distributed Data Services
TIGGETHORPEX Interactive Grand Global Ensemble
TIMSSTrends in International Mathematics and Science Study
TMRPTeam Multidisciplinary Research Project
TRMMTropical Rainfall Measuring Mission
TPCTropical Prediction Center
TPS ReportTesting Procedure Specification document

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U

UAHUniversity of Alabama, Huntsville
UCARUniversity Corporation for Atmospheric Research
UCPUCAR Community Programs (formerly the UCAR Office of Programs)
UCSBUniversity of California, Santa Barbara
UDDIUniversal Description, Discovery and Integration of Web Services
UDUNITSThe Unidata units library supports conversion of unit specifications between formatted and binary forms, arithmetic manipulation of unit specifications, and conversion of values between compatible scales of measurement.
UNAVCOUniversity NAVSTAR [not an acronym] Consortium
UPCUnidata Program Center
UNCUniversity of North Carolina
UPSUninterruptible Power Supply
UOPUCAR Office of Programs, now the UCAR Community Programs
URLUniversal Resource Locator
USGCRPUnited States Global Change Research Program
USGSU.S. Geological Survey
USPLNUnited States Precision Lightning Network

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V

VGEEVirtual Geophysical Exploration Environment
VisADVisualization for Algorithm Development. VisAD is a Java component library for interactive and collaborative visualization and analysis of numerical data.
VOCVirtual Operations Center
VORTEXVerification of the Origins of Rotation In Tornadoes Experiment

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W

W3CWorld Wide Web Consortium
WARWeb ARchive File
WCRPWorld Climate Research Program
WCSWeb Coverage Service
WESWeather Event Simulator
WFOWeather Forecast Office, of the National Weather Service
Web 2.0A second folksonomies — which facilitate collaboration and sharing between users.
WFSWeb Feature Service
Wikiwebsite that allows the creation and editing of any number of interlinkedweb pages
WMOWorld Meteorological Organization, Geneva, Switzerland
WMSWeb Mapping Service
Workstation ETAA version of NCEP's mesoscale model designed to run on workstations
WRFWeather Research and Forecasting Model
WSCIWeb Service Choreography Interface
WSDLWeb Services Description Language
WSIWSI Corporation
WSRWSR-88D radars
WxWISEWeather Wise

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X

XMLExtensible Markup Language
XSEDEeXtreme Science and Engineering Discovery Environment

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Y

YAML"Yet Another Markup Language" or "YAML Ain't Markup Language"

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Z

zlibA software library used for data compression.

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