The Floridan Aquifer Collaborative Engagement for Sustainability (FACETS) project SWAT-MODFLOW model of the Santa Fe River, Florida

This resource contains the SWAT-MODFLOW model for the Santa Fe River of North Central Florida used in the Floridan Aquifer Collaborative Engagement for Sustainability (FACETS) project. The FACETS project was funded by the USDA National Institute of Food and Agriculture (Award Number: 2017-68007-26319) to promote the economic sustainability of agriculture and silviculture in North Florida and South Georgia while protecting water quantity, quality, and habitat in the Upper Floridan Aquifer and the springs and rivers it feeds (https://floridanwater.research.ufl.edu/). SWAT-MODFLOW couples the Soil and Water Assessment Tool (SWAT) to the U.S. Geological Survey modular finite-difference flow model (MODFLOW) to produce an integrated surface-groundwater model (https://swat.tamu.edu/software/swat-modflow/). Within SWAT-MODFLOW, SWAT handles most surface and soil processes, MODFLOW handles groundwater processes, and both models interact to simulate stream flows. The SWAT portion of this model was developed using USGS digital elevation models, the 2017 Statewide Land Use / Land Cover map of the Florida Department of Environmental Protection (FDEP), Florida Department of Health septic tank data, STATSGO soil maps, the Public Land Survey System, and NLDAS weather data. Agricultural and silvicultural production land uses and management practices implemented within SWAT were co-developed with stakeholders in a participatory modeling process (PMP) and included row crops (corn-peanut and corn-carrot-peanut rotations) forage crops (bermudagrass hay and pasture), and production forestry (slash pine). Additional land uses implemented in SWAT included urban, low-density residential, septic tanks, rapid infiltration basins, fertilized lawns, natural grass, wetlands, and open water. The MODFLOW portion of the model was developed from the larger North Florida Southeast Georgia (NFSEG) MODFLOW model (version 1.0) as developed by the St John’s River and Suwannee River Water Management Districts. A detailed description of the complete model development process can be found in a document within this resource. Calibration of the model was conducted using a Bayesian Sample-Importance-Resample method. Data used in the model calibration included: 1) USGS discharge data (Stations 02322500, 02322700, 02322800, and 02321500); 2) USGS operational Simplified Surface Energy Balance (SSEBop) actual evapotranspiration; and 3) Upper Floridan Aquifer potentiometric surfaces from FDEP. The calibration period of the model was 2010-2018 and the validation period was 1980-2009.本数据集包含用于佛罗里达中北部圣达菲河的SWAT-MODFLOW模型，该模型服务于佛罗里达含水层可持续性协同参与（Floridan Aquifer Collaborative Engagement for Sustainability, FACETS）项目。FACETS项目由美国农业部国家食品与农业研究所（USDA National Institute of Food and Agriculture，资助编号：2017-68007-26319）资助，旨在促进北佛罗里达与南佐治亚州农林产业的经济可持续性，同时保护上佛罗里达含水层及其补给的泉水与河流的水量、水质与栖息地（https://floridanwater.research.ufl.edu/）。SWAT-MODFLOW将土壤与水评估工具（Soil and Water Assessment Tool, SWAT）与美国地质调查局模块化有限差分流模型（U.S. Geological Survey modular finite-difference flow model, MODFLOW）相耦合，构建集成地表-地下水模型（https://swat.tamu.edu/software/swat-modflow/）。在SWAT-MODFLOW模型中，SWAT负责多数地表与土壤过程，MODFLOW负责地下水过程，二者交互模拟河道径流。 本模型的SWAT模块基于美国地质调查局（U.S. Geological Survey, USGS）数字高程模型、佛罗里达环境保护部（Florida Department of Environmental Protection, FDEP）2017年全州土地利用/土地覆盖图、佛罗里达卫生部化粪池数据、STATSGO土壤图、公共土地测量系统以及NLDAS气象数据开发。SWAT中设置的农林生产用地利用方式与管理措施通过参与式建模流程（Participatory Modeling Process, PMP）与利益相关方共同制定，涵盖轮作作物（玉米-花生、玉米-胡萝卜-花生轮作）、饲草作物（百慕大草干草与牧场）以及商品林业（湿地松）。SWAT中额外纳入的土地利用类型包括城市、低密度住宅、化粪池、快速渗透池、施肥草坪、天然草地、湿地与开阔水体。本模型的MODFLOW模块源自圣约翰河与苏万尼河水资源管理区开发的更大尺度北佛罗里达及东南佐治亚（North Florida Southeast Georgia, NFSEG）MODFLOW模型（版本1.0）。完整模型开发流程的详细说明可在本数据集附带的文档中查阅。 本模型采用贝叶斯样本重要性重采样法进行校准。模型校准所用数据包括：1）美国地质调查局径流数据（站点编号：02322500、02322700、02322800及02321500）；2）美国地质调查局运行的简化地表能量平衡（Simplified Surface Energy Balance, SSEBop）实际蒸散发数据；3）佛罗里达环境保护部提供的上佛罗里达含水层等势面数据。模型校准时段为2010-2018年，验证时段为1980-2009年。