The recess program is used to determine the decline index and determine the main decline curve from the analysis of runoff records.

The seismic information distribution system (EIDs) provides a method to receive the seismic data on the Internet in near real time. The EIDs replaces the seismic data distribution system (QDDS), and provides the output message in the format of multi-dimensional data set or eqxml.

Dhsvm is a distributed hydrological model developed at the University of Washington for more than a decade. It clearly indicates the influence of landscape topography and vegetation on water flux. In business, runoff prediction can be done, and in research, the impact of forest management on peak flow is studied.

Epic is a continuous simulation model used to study the long-term effects of various soil erosion factors on crop production. Epic is a public domain model for studying the impact of soil erosion on crop production in more than 60 countries in Asia, South America and Europe. The model is used to study soil erosion, economic factors, hydrological models, weather effects, nutrition, plant growth dynamics and crop management. The main components of the epic are weather simulation, hydrology, erosion deposition, nutrient cycling, pesticide fate, plant growth, soil temperature, farming, economy and plant environmental control. Epic assessed the impact of soil erosion on productivity and predicted the impact of management decisions on soil, water, nutrient and pesticide movement, as well as their combined effects on soil fertility and managed soil loss, water quality and crop yield.

SPARE:WATER It is a spatial decision support system for estimating water consumption of agricultural production system. It is a stand-alone software application that integrates a database for mathematical models and graphical user interfaces (GUIs) for estimating crop water requirements. The software realizes the function of GIS, which is used to manage spatial data based on open source spatial database.

The earth system modeling framework (ESMF) is a high-performance, flexible software infrastructure for building and coupling weather, climate and related geoscience applications. ESMF defines an architecture for combining complex, coupled modeling systems and includes data structures and utilities for developing individual models. The basic idea of ESMF is to decompose complex applications into unified modules or components, and use standard calling interfaces.

IHACRES model is a lumped conceptual rainfall runoff model based on unit hydrograph principle. It is composed of two basic modules in series: in the nonlinear module, rainfall is transformed into effective rainfall; in the linear module, effective rainfall is further transformed into runoff. The model is suitable for a series of spatial and temporal scales.