Algorithm model of continuous multi flow confluence

Modular ocean model (MOM) is a standard global ocean circulation model used by many researchers in the world. The origin of this model can be traced back to the community code originally developed by Kirk Bryan and Mike Cox in the 1960s, and many other global ocean models can be traced back to their origins. In the early 1990s, Ron pacanowski, Keith Dixon, and Tony Rosati redesigned the old code into a more modern format, while Steve griffies led the development of mom since 2000. However, mom is really a community code, and many people, both in gfdl and around the world, have made fundamental contributions to its successful development over the years.

Ramms:: avalanche model is used to simulate avalanche in complex terrain. The model has been widely used in avalanche hazard studies in Switzerland. The ramms:: avalanche model combines state-of-the-art digital solutions with helpful input features and friendly visualization tools. Many of the input and output features are optimized, enabling users to easily modify dangerous scenarios and control simulation results. The core of the program is an effective second-order numerical solution, that is, the depth averaged avalanche dynamic equation. In the 3D digital terrain model, the velocity and velocity of avalanche are calculated. Using the GIS type drawing feature, you can easily specify a single or multiple publishing areas. Users can get useful overview information about the simulation, including important information about the release area (average slope, total capacity), traffic behavior (maximum flow and height), and stop behavior (mass flow). Maps and remote sensing images can be superimposed on terrain models to help determine input conditions and calibrate models based on known events. The ramms:: avalanche model has been used in more than 70 places around the world, and the software has been successfully applied to high mountain areas such as the Alps, Himalayas, Andes, Rockies, tatare and other areas.

One dimensional River Stuart model

Apex model includes nine modules: meteorology, hydrology, water erosion, nutrient, soil temperature, crop growth, cultivation, crop environmental management and economy. The improved SCS Runoff Curve number method is used to estimate the daily runoff of the model. The original SCS model provides the Runoff Curve Number with a slope of about 5%. The modified Runoff Curve number can be used for other slopes. At the same time, the daily runoff curve number is adjusted according to the soil moisture content and its distribution. Must equation is used to simulate water erosion, which is improved by musle. The biggest difference between must and USLE is that runoff and peak velocity are used as erosivity indicators to simulate soil erosion and sediment yield. This not only improves the prediction accuracy, but also avoids the use of sediment transport rate, but also can be used for sediment yield estimation of word rainstorm.