1. The Environment Agency of England and Wales; Anglian Region, Northern Area, Waterside House, Waterside North; Lincoln; LN2 5HA; UK
2. The Environment Agency of England and Wales; Southeast Region, Apollo Court, 2 Bishop Square Business Park; Hatfield; Herts; AL10 9EX; UK
3. Centre for Ecology and Hydrology (CEH); Wallingford; Oxon; OX10 8BB; UK
4. Department of Geography; Loughborough University; Loughborough; Leicestershire; LE11 3TU; UK
5. Atkins, Water and Environment; Chilbrook Office; Oasis Business Park; Eynsham; Oxon; OX29 4AH; UK