地震监测精密水准网中独立环闭合差计算

Calculation of Independent Ring Closure Error in Earthquake Monitoring Precision Leveling Network

从地震监测中精密水准测量的实际工作出发,对每测段、区段、路线所测高差进行高差改正,对所形成的独立环进行环闭合差计算,判断其是否超限,若满足环闭合差限差,则观测数据合格,若超出限差,则分析原因、重新测量,最终使独立水准环闭合。

Starting from the precise leveling of earthquake monitoring,height difference of each leveling interval,leveling section and leveling route have been corrected.The ring closure error in independent closed leveling line is also calculated and compared with tolerance.If the closure error is less than the tolerance,the leveling observation data will be qualified.If the closure error is greater than the tolerance,the reason for this situation must be analyzed.Then the data has to be remeasured till the closure error is less than the tolerance.