Boots – shoes – and leggings
Patent
1993-07-08
1995-08-08
Harvey, Jack B.
Boots, shoes, and leggings
7317019, G01W 102
Patent
active
054404835
ABSTRACT:
Automatic rain gauges (P00-P0n) are employed within the area of terrain (ZT). A meteorological radar (R1) provides, with a given radar periodicity, a radar image representing rain-bearing cells of concern to the area of terrain. By analyzing the succession of radar images, the main rain-bearing cells are tracked dynamically by their shape and motion. Then a radar rainfall measurement chart is compiled by accumulating, in each pixel of the area of terrain, the precipitations due, during a second chosen time interval, to these main rain-bearing cells, with interpolation of their shapes and positions. At least one sub-array (PA, PB) of four rain gauges separated from one another by about 2 to 4 kilometers and affected by at least one main rain-bearing cell is selected. Finally, the rainfall measurement chart is corrected at least partially as a function of the relation between the accumulated true rainfall data and those from the said chart at the locations of the rain gauges of the sub-array. This allows excellent estimation of the precipitations in each square kilometer of the area of terrain.
REFERENCES:
patent: 4305280 (1981-12-01), Vonnetgut et al.
patent: 4895022 (1990-01-01), Noren
patent: 5117359 (1992-05-01), Eccles
patent: 5255190 (1993-10-01), Sznaider
Jacquet, G. et al., "About Radar Rainfall Measurement", Fourth International Conference on Urban Storm Drainage, Ecole Polytechnique Federale, Lausanne, Suisse, pp. 25-30, Aug./Sep. 1987.
Blanchet, B. et al., "Improvement of Rainfall Measurements Due to Accurate Synchronization of Raingauges and Due to Advection Use in Calibration", Conference de Salford, Symposium on the Hydrological Application of Weather Radar, Aug. 1989.
Einfalt, Thomas, et al., "A Radar Rainfall Forecasting Method Designed for Hydrological Purposes", Journal of Hydrology, No. 114, pp. 229-244, 1990.
Jacquet et al., "Radar Data For Hydrological Users", Seminar on Weather Radar Networking, pp. 511-527, (1989).
Badoche-Jacquet Guy
Blanchet Beatrice
Blanchet Frederic
Chung-Trans Xuong My
Harvey Jack B.
Rhea
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