SYHDA – System of Hydrological Data Acquisition and Analysis

ABSTRACT Acquisition and analysis of hydrological series are essential activities for hydrological studies in watersheds. However, they require time and are usually complex and susceptible to human errors. In order to minimize these problems, computational tools are often used for hydrological analysis, although there are few of them in Brazil. This technical note aims to provide a structured document with information on the motivation, development, conception, main functionalities, and applications of the System of Hydrological Data Acquisition and Analysis (SYHDA). SYHDA is a software intended for acquisition and analysis of hydrological data (rainfall and streamflow) and was fully idealized to enable the user to deal with the country’s leading hydrology databases. It has several modules that include analysis by descriptive statistics and graphical tools, seasonality analysis of streamflows, non-parametric tests, and at-site and regional probabilistic modeling. SYHDA has been used in numerous scientific studies, which give grounds to affirm that it demonstrates a great potential to be used in both everyday and complex activities demanded by the scientific and technical community of hydrology and related areas.

摘要：水文序列的获取与分析是流域水文研究不可或缺的核心环节。然而此类工作耗时冗长、流程繁杂，且极易引入人为误差。尽管巴西国内可供使用的相关工具较为稀缺，但为规避上述问题，水文分析工作常借助计算工具完成。本技术简报旨在提供一份结构化文档，系统介绍水文数据获取与分析系统（System of Hydrological Data Acquisition and Analysis，SYHDA）的研发动因、开发历程、设计理念、核心功能及应用场景。SYHDA是一款专为水文数据（降雨与径流）的获取与分析打造的软件，其设计初衷是让用户能够便捷对接巴西主流水文数据库。该软件内置多个功能模块，涵盖描述性统计与可视化工具分析、径流季节性特征分析、非参数检验，以及站点级与区域级概率建模。目前SYHDA已在多项科学研究中得到应用，相关实践足以证明，其在水文及相关领域科研与技术人员的日常工作及复杂任务中具备可观的应用潜力。