Scottish Government

AEP

Annual Exceedance Probability

AREA

Area (km2)

BFIHOST

Base Flow Index estimated from soil type

CD

Compact Disc

CEH

Centre for Ecology and Hydrology

DDF

Depth Duration Frequency

FEH

Flood Estimation Handbook

GEV

General Extreme Value Distribution

GIS

Geographical Information System

GL

General Logistic Distribution

GMT

Greenwich Mean Time

HiFlow

Flood peaks database developed by JBA

ISIS

Hydrology and hydraulic modelling software

JBA

JBA Consulting - Engineers & Scientists

MAFF

Ministry of Agriculture Food and Fisheries (now part of DEFRA)

NGR

National Grid Reference

NRFA

National River Flow Archive

OS

Ordnance Survey

OSNGR

Ordnance Survey National Grid Reference

QMED

Median Annual Flood (with return period 2 years)

SAAR

Standard Average Annual Rainfall (mm)

SEPA

Scottish Environment Protection Agency

SPR

Standard percentage runoff

Tp

Time to Peak

WINFAP

Windows Frequency Analysis Package

WINFAP- FEH

Extended version of WINFAP