This List of Acronyms and other Abbreviations was compiled from the coral, coral reef, marine tropical ecosystems, and related peer-reviewed literature, grey literature, and other written and electronic reports, including e-mail messages. The terms on the list number nearly 3,600 (as of February 2010) and continue to grow on a daily to weekly basis. CoRIS invites readers to suggest additional acronyms and abbreviations via or

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Acronyms A - Z Pages

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u micrometer; micron
U Uracil
U.S. United States
U/A Usual and accustomed
UA University of the Azores
UA University of Alaska
UA University of Aukland (NZ)
UAA University of Alaska - Anchorage
UABC Universidad Autonoma de Baja California 
UAC Environmental Coastal Unit
UAC Unified Area Command (USCG)
UAE United Arab Emirates
UAF Unified Access Framework (NOAA)
UAF University of Alaska - Fairbanks
UAS Unmanned Aerial (or Aircraft) System (NOAA)
UAS Unmanned Autonomous Systems
UAV Unmanned Aerial Vehicle
UB University of Belize
UCAR University Corporation for Atmospheric Research
UCB University College of Belize
UCC University College Cork
UCF University of Central Florida
UCL University College London
UCME Utila Centre for Marine Ecology (Honduras)
UCMERCED University of California at Merced
UCR University of Costa Rica
UCSB University of California, Santa Barbara
UCSC University of California at Santa Cruz
UCSC University of California at Santa Clara
UCSD University of California at San Diego
UD University of Delaware
UDO Universidad de Oriente (Venezuela)
UDSM University of Dar es Salaam (Tanzania)
UEC St. John's River Water Management District Upper East Coast
UEP Unique-Event Polymorphism
UESC Utility Energy Services Contract
UF University of Florida
UF-IFAS University of Florida-Institute of Food and Agricultural Sciences
UFA United Fishing Agency
UGF Under Gravel Filter
UGT UDP-Glucuronosyltransferase; also "Uridine Diphosphoglucuronosyltransferase"
UH University of Hawaii
UHF Ultra High Frequency
UHH University of Hawaii (Hilo)
UHI University of Hawaii
UHMC University of Hawaii Marine Center
UHSLC University of Hawaii Sea Level Center
UI Upwelling Index
UIC Underground Injection Control (line or program)
UK United Kingdom
UKM Universiti Kebangsaan Malaysia (Malaysia); same as "National University of Malaysia"
UKMMAS UK Marine and Monitoring Assessment Strategy
UKOOA United Kingdom Offshore Operators Association
UKOTCF UK Overseas Territories Conservation Forum
UKZN University of Kwazulu-Natal
ULF Ultra Low Frequency
UM University of Miami
UM-RSMAS University of Miami’s Rosenstiel School of Marine and Atmospheric Science
UMCES University of Maryland Center for Environmental Science
UMD University of Maryland
UMEB Undergraduate Mentoring in Environmental Biology (NSF)
UMS Universiti Malaysia Sabah (Malaysia)
UMT University of Malta
UN United Nations
UNAM Universidad Nacional Autonoma de Mexico
UNC University of North Carolina
UNC-CH University of North Carolina-Chapel Hill
UNCED United Nations Conference on Environment and Development
UNCHS United Nations Centre for Human Settlements
UNCLOS United Nations Convention on the Law of the Sea
UNColombia Universidad Nacional de Colombia
UNCW University of North Carolina - Wilmington
UNDESA United Nations Department of Economic and Social Affairs
UNDP United Nations Development Program
UNDS Uniform National Discharge Standards (DoD)
UNE University of New England (Australia)
UNEP United Nations Environment Program
UNEP- EAS- RCU United Nations Environment Programme East Asian Seas Regional Co-ordinating Unit
UNEP-CEP United Nations Environmental Programme - Caribbean Environment Programme
UNEP-CRU United Nations Environment Program - Coral Reef Unit
UNEP-GPA United Nations Environment Program - Global Program of Action
UNEP-RCU United Nations Environment Programme - Regional Coordinating Unit
UNEP-WCMC United Nations Environment Programme-World Conservation Monitoring Centre
UNEP/GEF SCS UNEP/Global Environment Facility South China Sea
UNESCO United Nations Educational, Scientific, and Cultural Organization
UNESCO-MAB UNESCO - Man and the Biosphere Programme
UNESCO-WHC United Nations Educational, Scientific and Cultural Organization - World Heritage Convention
UNF United Nations Foundation
UNFCCC United Nations Framework Convention on Climate Change
UNGA United Nations General Assembly
UNH University of New Hampshire
UNICPOLOS United Nations Open-ended Informal Consultative Processes on Oceans and the Law of the Sea
UNIGE University of Geneva
UNIMAS University Malaysia Sarawak (Malaysia)
UniProt Universal Protein Resource
UniProtKB UniProt Knowledgebase
UNISIST United Nations International Scientific Information System; World Scientific Information System
UNKN Unknown
UNOLS University-National Oceanographic Laboratory System
UNU United Nations University
UNU INWEH United Nations University International Network on Water, Environment and Health
UNU-INWEH United Nations University - International Network on Water, Environment and Health (UNU-INWEH)
UNU-INWEH UNU Institute for Water, Environment & Health
UO University of Oregon
UO University of Ottawa
UOG University of Guam
UOGML University of Guam Marine Laboratory
UP University of the Philippines
UP University of Porto (Universidade do Porto)
UPGMA Unweighted Pair-Group Method with Arithmetic Averaging analysis
UPM Universiti Putra Malaysia (Malaysia)
UPMSI University of the Philippines Marine Science Institute
UPR University of Puerto Rico
UPR-ASE University of Puerto Rico - Agricultural Service Extension
UPRM University of Puerto Rico/Mayaguez
UPS Undersea persistent surveillance
UQ University of Queensland
URI University of Rhode Island
URJ University of Rio de Janeiro
URL Universal Resource Locator
URSA Urban Reforestation Site Assessment
US United States
USA United States of America
USA Unified Stream Assessment
USA-NPN USA National Phenology Network
USAC University Sub-Aqua Club (Jamaica)
USACE U.S. Army Corps of Engineers
USACOE U.S. Army Corps of Engineers
USAICRI U.S. All Islands Coral Reef Initiative
USAICRIC U.S. All Islands Coral Reef Initiative Committee
USAID U.S. Agency for International Development
USAKA United States Army Kwajalein Atoll
USAO Under Secretary and Associate Offices
USAPI U.S. Affiliated Pacific Islands (Guam, Palau, Yap, Pohnpei, Majuro, Kwajalein, and Pago Pago)
USC United States Code
USCA University of South Carolina Aiken
USCG U.S. Coast Guard
USCOE United States Corps of Engineer
USCOP United States Commission on Ocean Policy
USCRTF U.S. Coral Reef Task Force
USCRTF CCWG United States Coral Reef Task Force Climate Change Working Group
USCTI United States Coral Triangle Initiative Support Program
USD US Dollars
USDA U.S. Department of Agriculture
USDA-ARS United States Department of Agriculture - Agricultural Research Service
USF University of South Florida
USFS U.S. Forest Service
USFWS U.S. Fish and Wildlife Service
USGCRP United States Global Changes Research Program
USGEO U.S. Group on Earth Observations
USGS U.S. Geological Survey
USH Universal Sample Holder
USM Universiti Sains Malaysia (Malaysia)
USMCC U.S. Mission Control Center
USNOO United States Naval Oceanographic Office
USNRCS US Natural Resources Conservation Service
USP University of the South Pacific (Fiji)
USPI United States Pacific Islands
USSR Unified Subwatershed and Site Reconnaissance
UST underground storage tank
USTR United States Trade Representative
USVI U.S. Virgin Islands
USVI-ROMS The US Virgin Islands Regional Ocean Modeling System (RSMAS)
USWRP United States Weather Research Program
USYD University of Sydney (Australia)
UT University of Texas
UT Universal Time
UTAS University of Tasmania
UTC Unit Trust Corporation (T&T)
UTE Underwater Tagging Equipment
UTIG University of Texas Institute for Geophysics
UTM Universal Transverse Mercator
UUV Unmanned Underwater Vehicle
UV Ultraviolet Radiation
UVA Ultraviolet-A
UvA University of Amsterdam
UVB Ultraviolet-B
UVC Underwater Visual Census
UVI University of the Virgin Islands
UVNet Ultraviolet Radiation Monitoring Program (EPA)
UVR Ultraviolet Radiation; Ultraviolet radiometer
UW University of Washington
UW-CIG University of Washington's Climate Impacts Group
UWI University of the West Indies
UWI Mona University of the West Indies at Mona, Jamaica
UWICED University of West Indies Center for Environment and Development
UWS Ulcerative White Spot Disease
UWS University of Western Sydney
UXO Unexploded Ordnance