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首页> 外文期刊>Journal of the American Water Resources Association >SIMULATION OF SURFACE WATER FOR UN-GAUGED AREAS WITH STORAGE-ATTENUATION WETLANDS
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SIMULATION OF SURFACE WATER FOR UN-GAUGED AREAS WITH STORAGE-ATTENUATION WETLANDS

机译：有存储衰减湿地的疏GA地区的地表水模拟

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摘要

A nontraditional application of the Hydrological Simulation Program - FORTRAN (HSPF) model to simulate freshwater discharge to upper Charlotte Harbor along Florida's west coast was performed. This application was different from traditional HSPF applications in three ways. First, the domain of the model was defined based on the hydraulic characteristics of the landforms using small distributed parameter discretization. Second, broad wetland land forms, representing more than 20% of this area, were simulated as reaches with storage-attenuation characteristics and not as pervious land segments (PERLNDs). Finally, the reach flow-tables (F-Tables) were configured in a unique way to be calibrated representing the uncertainty of the storage-attenuation process. Characterizing wetlands as hydrography elements allows flow from the wetlands to be treated as a stage-dependent flux. The study was conducted for the un-gauged portion of the Peace and Myakka rivers in west-central Florida. Due to low gradient tidal influences, a large portion of the basin is un-gauged. The objective of this study was to simulate stream flow discharges and to estimate freshwater inflow from these un-gauged areas to upper Charlotte Harbor. Two local gauging stations were located within the model domain and were used for calibration. Another gauge with a shorter period of record was used for verification. A set of global hydrologic parameters were selected and tested using the parameter optimization software (PEST) during the calibration. Model results were evaluated using PEST and well-known statistical indices. The correlation coefficients were very high (0.899 and 0.825) for the two calibration stations. Further testing of this approach appears warranted for watersheds with significant wetlands coverage.
机译：在水文模拟程序-FORTRAN（HSPF）模型的非传统应用中，模拟了沿佛罗里达州西海岸夏洛特港上游的淡水排放。该应用程序在三个方面不同于传统的HSPF应用程序。首先，使用小分布参数离散化基于地形的水力特征定义模型的域。其次，代表该地区超过20％的宽阔湿地地貌被模拟为具有存储衰减特征的河段，而不是渗透性土地段（PERLND）。最后，以独特的方式配置到达流量表（F-Tables）以进行校准，以表示存储衰减过程的不确定性。将湿地表征为水文要素，可以将来自湿地的水流视为与阶段有关的流量。这项研究是针对佛罗里达州中西部和平河和Myakka河的未测量部分进行的。由于低梯度潮汐影响，盆地的很大一部分是未规范的。这项研究的目的是模拟河流的流量排放，并估计从这些未测量区域到夏洛特港上游的淡水流入量。两个局部测量站位于模型域内，并用于校准。另一个记录时间较短的量规用于验证。在校准过程中，使用参数优化软件（PEST）选择并测试了一组全局水文参数。使用PEST和众所周知的统计指标评估模型结果。两个校准站的相关系数非常高（0.899和0.825）。对于具有大量湿地覆盖范围的流域，有必要对该方法进行进一步测试。

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