WEPPcloud

The Water Erosion Prediction Project (WEPP) model is a hydrology and erosion model wildly used by academics and land managers to assess the effects of land management changes on runoff and sediment yield. Even for advanced users, data preparation is a lengthy process that involves downloading various maps and datasets, and processing and saving the data in formats that are readable by the model.

[WEPPcloud] (https://wepp.cloud) is an online interface for the WEPP model that facilitates input data preparation and hydrologic simulations from any computer connected to the internet. The user can zoom to a location, identify an area of interest, and delineate a watershed. Then based on a series of options that involve selection of soils, managements, and weather information from national or locally-stored databases, the user can quickly get estimates of runoff and soil erosion for their watershed of interest. Results are displayed in the web browser as text files and as geospatial maps and are also downloadable. Most hydrologic simulations can be completed within a few minutes, depending on the size of the watershed.

WEPPcloud was mainly developed for forestry applications as a joint effort between University of Idaho and Forest Service Rocky Mountain Research Station. Other contributions to the application include USDA ARS, Swansea University, and Michigan Technological University.

水蚀预报项目（Water Erosion Prediction Project, WEPP）模型是一款水文与侵蚀模型，被学术界与土地管理者广泛用于评估土地管理变化对径流与产沙量的影响。即便是资深用户，数据准备工作也耗时较长：需下载各类地图与数据集，并将数据处理并保存为模型可读取的格式。

[WEPPcloud（https://wepp.cloud）]是专为WEPP模型打造的在线交互界面，可让联网计算机便捷完成输入数据准备与水文模拟工作。用户可通过该界面缩放定位目标区域，划定感兴趣的流域范围；随后基于一系列预设选项——从国家或本地存储的数据库中选取土壤、管理措施与气象信息——即可快速获取目标流域的径流与土壤侵蚀估算结果。模拟结果将以文本文件与地理空间地图的形式在网页浏览器中展示，同时支持下载保存。根据流域规模不同，多数水文模拟可在数分钟内完成。

WEPPcloud主要由爱达荷大学与美国林务局落基山研究站联合开发，最初面向林业应用场景。其他参与该应用开发的机构还包括美国农业部农业研究服务局（USDA ARS）、斯旺西大学与密歇根理工大学。