USACE CWMS - Okeechobee River Watershed

The Corps Water Management System (CWMS) includes four interrelated models to assist with water management for the basin:
- GeoHMS (Geospatial Hydrologic Modeling Extension)
- ResSIM (Reservoir System Simulation)
- RAS (River Analysis System)
- FIA (Flood Impact Analysis)

Lake Okeechobee has a watershed area of about 5,500 square miles. The watershed covers most of the central part of Florida, south from Orlando to the Everglades Agricultural Area and generally east of the central peninsular ridge that acts as the drainage divide for runoff flowing either into the Atlantic Ocean or the Gulf of Mexico. The individual drainage basins in the area constitute a single watershed, as in most cases their waters intermingle during periods of heavy rainfall. The watershed is comprised of the following 8 basins: Upper Kissimmee Basin, Lower Kissimmee Basin, Istokpoga Basin, Fisheating Creek, Taylor Creek-Nubbin Slough, St. Lucie, Caloosahatchee, and Lake Okeechobee.

Corps 水资源管理系统（CWMS）包含四个相互关联的模型，旨在协助流域水资源管理：
- GeoHMS（地理水文模型扩展）
- ResSIM（水库系统模拟）
- RAS（河流分析系统）
- FIA（洪水影响分析）
奥基乔比湖流域面积约为 5,500 平方英里。该流域覆盖了佛罗里达州中部的大部分地区，从奥兰多向南至大沼泽地农业区，并大致位于中部半岛脊以东，该脊作为排水分水岭，分流径流汇入大西洋或墨西哥湾。该地区的单个排水流域构成一个单一的水域，因为在暴雨期间，大多数情况下其水流会混合。该水域包括以下 8 个流域：上基西米厄斯流域、下基西米厄斯流域、伊斯特科普加流域、菲舍尔溪、泰勒溪-纽宾沼泽、圣卢西亚、卡洛萨希奇和奥基乔比湖。