公开(公告)号：US5440483A

公开(公告)日：1995-08-08

申请号：US87331

申请日：1993-07-08

Applicant: Guy Badoche-Jacquet ,  Frederic Blanchet ,  Beatrice Blanchet

Inventor： Guy Badoche-Jacquet ,  Frederic Blanchet ,  Beatrice Blanchet

IPC: G01S13/95 ,  G01W1/02

CPC classification number: G01W1/14 ,  G01S13/95

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.

Abstract translation: 在地形区域（ZT）内采用自动雨量计（P00-P0n）。 气象雷达（R1）以给定的雷达周期性提供表示地形区域关注的含雨细胞的雷达图像。 通过分析雷达图像的连续性，主要承载单元通过其形状和运动动态跟踪。 然后，在地形区域的每个像素中，通过在第二个选定的时间间隔内累积到这些主要含雨小区，并以其形状和位置的插值来累积雷达降雨测量图。 选择四个雨量计的至少一个子阵列（PA，PB）彼此分开约2至4公里并受至少一个主要承载单元的影响。 最后，降雨测量图被校正至少部分地作为累积的真实降雨数据与来自所述图的那些在子阵列的雨量计的位置之间的关系的函数。 这样可以很好地估计地形区域每平方公里的沉淀物。