国家基本水文站网的测验目的,是探求产流、汇流规律和测定主要江河的水文过程,算清水帐。河口区域因潮汐上溯,测验困难,故江河的控制站多设在潮区以外。对于河网型的河口区域应如何测验。国内目前尚无理想 The purpose of the national basic hydrological station network test is to explore the runoff and confluence laws and determine the hydrological processes of the major rivers and to calculate the accounts of water accounts. Estuary area due to tidal upstream, the test is difficult, so the river control stations are located outside the tidal zone. How to test river network estuary area? At present there is no ideal at home