Constant altitude plan position indicator

（重定向自CAPPI）

Reflectivity Cappi at 1.5 km altitude from Montréal radar (Source Environment Canada)

The constant altitude plan position indicator, better known as CAPPI, is a radar display which gives a horizontal cross-section of data at constant altitude. It has been developed by McGill University in Montreal by the Stormy Weather Group to circumvent some problems with the PPI:

单词	CAPPI
释义	CAPPI 英语百科 Constant altitude plan position indicator （重定向自CAPPI） The constant altitude plan position indicator, better known as CAPPI, is a radar display which gives a horizontal cross-section of data at constant altitude. It has been developed by McGill University in Montreal by the Stormy Weather Group to circumvent some problems with the PPI:
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