- Lincoln weather radar consortium, Long Range Calibration Study (LORCS). Final report.
Report
Bib No.:
- 175654
Corporate Author:
- Meteorological Office. (UK)
- National Rivers Authority.
Publication Date:
- 1995
Place of Publication:
- Bracknell
Publisher:
- Meteorological Office
Physical Description:
- Pp.45+36+34pls.
Size:
- 30cm.
Geographical Area (old):
- England; East Midlands; Northamptonshire; Leicestershire; Lincolnshire; Nottinghamshire; Derbyshire
General Notes:
- Contains 5 view foils in plastic envelope.
Language:
- English
Media Type:
- Report
Collection:
- Archive Collection
Abstract:
- The main study objectives are to ascertain the adequacy of quantitative precipitation data derived from the Ingham radar at ranges beyond 70 km; to analyse the reasons for variability, and to propose procedures to improve data so that it reaches defined standards of accuracy. The study involves rainfall data collection from the Lincoln, Leeds and Solihull offices of the NRA and its analysis, in conjunction with radar data, at Met Office, Bracknell. These data are summarised and considered by the Long Range Calibration Study (LORCS) Working Group. Data are analysed with respect to range from the radar, azimuth, rainfall type, anaprop (anomalous propagation of the beam) susceptibility and beam height. Units of analysis are the entire beam area for mapped assessment factors, range data for 7 and 30-day time-sliced analyses, areal rainfall for the 42 LORCS subcatchments and 5km grid squares for anaprop tests. All rainfall data are based on 24 hour totals for the rainfall day starting at 09.00 hrs GMT. Three rainfall gauge networks have been used: Met Office (MO) dense (adopted truth), MO sparse and NRA operational. Radar data refers to the same time period and is based on either 2km or 5km grid values - depending on range. Subcatchment radar data uses subsets of these grids. Ingham ...