Method of correcting reflectivity measurements by isotherm detection and radar implementing the method

A method of correcting a reflectivity measurement performed by a weather radar, the reflectivity measurement being associated with a resolution volume, the method comprising:

• analyzing the resolution volume to determine whether a plane representing the 0° C. isotherm passes through the resolution volume;
• when the plane representing the 0° C. isotherm passes through the resolution volume, dividing said resolution volume into two portions lying on either side of said plane, and determining an attenuation associated with the resolution volume by taking into account the contribution of each of the portions to measured reflectivity;
• and
• correcting the reflectivity associated with the current resolution volume using the attenuation thus determined,
• wherein the weather radar performs the analyzing the current resolution volume, the dividing said resolution volume into the two portions, the determining the attenuation associated with the resolution volume, and the correcting the reflectivity associated with the current resolution volume.