Hydrology Abbreviations

23FTwenty Three Feet 
ACCSTAdvanced Continuous Channel Shifting Technology 
ACEAnnual chance event, referring to the flood event with a specified chance of occurring in one year. E.g. the 1% ACE is the flood with a 1 in 100 chance of occurring in any one year. 
ACWIAdvisory Committee on Water Information 
ADFAverage Daily Flow 
AEPAnnual Exceedance Probability 
AIRCAAssociation of International Research and Development Centers for Agriculture 
AMLAbandoned Mine Lands 
AOVAir Operated Valve 
ARIAverage Recurrence Interval 
ASHUAmerican Spatial Hydrology Union 
AVRDCAsian Vegetable Research and Development Center 
BAHMBay Area Hydrology Model 
BGBlack Gold 
BGLBelow Ground Level 
BPVBy-Pass Valve 
BVButterfly Valve 
CBAWOCape Bounty Arctic Watershed Observatory 
CEAHCentre for Environmental Applied Hydrology 
CEHCentre for Ecology Hydrology 
CEHCentre for Ecology and Hydrology 
CHGCertified Hydrogeologist 
CHYCommission for Hydrology 
CIMHCaribbean Institute for Meteorology Hydrology 
CIMHCaribbean Institute for Meteorology and Hidrology