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70年代后期开始的微型计算机(以下简称微机)时代导致位于萨克拉门托市的美国国家天气局所属的加利福尼亚——内华达河流预报中心(CNRFC)率先将这 一新技术应用于水文上.ALERT(当地实时自动估算)——由CNRFC建立的资料采集为洪水警报系统可用微机来实现.自ALERT系统出现以来,其概念已从简单的雨量站资料采集系统扩展到复杂的天气资料处理与信息系统.随着微机容量的猛增,使得CNRFC对计算机的各种需求可以通过地区微机网满意地得到解决.使用ALERT软件为基础,不久就可以把小型计算机上的工作转移到微机上来完成.所有通讯,资料的采集、归档工作以及洪水预报和洪水预测等,均可由价格相对比较便宜,维护费用不高的微机来处理.水文学家将配合微机进行预报.微机在水文预报中的许多其它可能应用,国家天气局的水文学家正在规划或实施.将来的系统或者由连接到小型计算机上的网络化微机组成,小型机又与一台主机相通;或者由与主机直接进行通讯的联网微机组成;或者是一个独立的微机网络.到1990年,通过不同途径平行发展,可为水文分析和预报提供最经济有效的系统.
In the late 1970s, the Microcomputer (PC) era led the California-Nevada Rivers Prediction Center (CNRFC), a National Weather Service based in Sacramento, to apply this new technology to hydrology. ALERT (Local Real-Time Auto Estimation) - Data collection established by CNRFC is available to the computer as a flood warning system, and since the advent of the ALERT system its concept has been extended from a simple rainfall station data acquisition system to a complex weather data processing and information system. As the microcomputer The surge in capacity allows CNRFC’s various computer needs to be satisfactorily addressed through regional micro-networks, and with the ALERT software it is soon possible to transfer the work done on small computers to the PC. All communications and data acquisition , Filing, and flood forecasting and flood forecasting can all be handled by computers that are relatively cheaper and less expensive to maintain. Hydrologists will work with the computer to forecast many of the other possible applications of the computer in hydrological forecasting, the National Weather Service Hydrologists are planning or implementing future systems or systems Connected to a small computer networked microcomputer, the minicomputer and a host connected; or by direct communication with the host computer network composed of micro-computer; or an independent computer network.In 1990, through parallel development of different channels, It provides the most cost-effective system for hydrological analysis and prediction.