The vegetation model SSiB was developed in the late 1980s. It is based on the SIB proposed by sellers et al. In 1986. The simplification is mainly aimed at the calculation of radiation transfer, aerodynamic drag coefficient and stomatal resistance coefficient in plants. The simplified SSiB has 1 layer of vegetation, 3 layers of soil and 8 forecast variables (moisture of 3 layers of soil, water content of vegetation surface, snow cover of soil surface and leaf surface temperature). Therefore, there are only two predictors: soil surface temperature and deep soil temperature. In the model, stomatal resistance coefficient, soil resistance coefficient, vegetation boundary layer resistance coefficient and two-layer aerodynamic resistance coefficient are used to control the dynamic, thermal and water exchange between the earth and the atmosphere.

CROPWAT is a model developed by the food and Agriculture Organization of the United Nations (FAO) in 1991. It can help agrometeorologists, agronomists and irrigation engineers to calculate evapotranspiration and irrigation water requirements in a standard way. In addition, CROPWAT can suggest how to improve irrigation methods, plan irrigation schedules under different water supply conditions, and evaluate the impact on crop yields under rain sampling conditions or under sufficient irrigation conditions. The basic functions of CROPWAT include: (1) reference crop evapotranspiration (2) crop evapotranspiration (3) crop irrigation water requirement (4) formulation of irrigation schedule (5) evaluation of crop yield under rain fed or under sufficient irrigation conditions.

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.

Algorithm model of continuous multi flow confluence