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首页> 外文期刊>Applied Geography >Effects of urbanization on streamflow using SWAT with real and simulated meteorological data.
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Effects of urbanization on streamflow using SWAT with real and simulated meteorological data.

机译：使用真实和模拟气象数据的SWAT对城市化对径流的影响。

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摘要

This research reports the applicability of a hydrological model, the Soil and Water Assessment Tool (SWAT), integrated with a Geographic Information System (GIS) to examine the effects of landuse (LU) change (urbanization) on a streamflow for the Charlie Creek watershed (FL, U.S.A.). This watershed was selected because it is intensely studied by various state and federal agencies and has long-term historical data for meteorology and stream discharge. The overall goal of this project is to examine applicability of the SWAT model to predict streamflow with varying LU and meteorological data including the ability to predict hydrographs for future LU. This goal was accomplished by comparing SWAT-generated hydrographs for (i) various LU scenarios (viz. to determine the effects of urbanization on streamflow/hydrograph) with current and future/simulated LU, and (ii) real and simulated meteorological data. The resultant 'SWAT model-predicted streamflow' for all LU and meteorological scenarios (real and simulated datasets) were then validated with United States Geological Survey (USGS) 'measured streamflow data'. The SWAT model's built-in method was used to generate simulated meteorological data. Results indicate that the SWAT model can facilitate analysis of various LU change (for example, as the LU changed to more urban) on the streamflow. However, results also show that the SWAT model-predicted hydrographs were sensitive to the meteorological data used (i.e. real vs. simulated and short-term vs. long-term).
机译：这项研究报告了水文模型，土壤和水评估工具（SWAT）与地理信息系统（GIS）集成的适用性，以检查查理溪流域的土地利用（LU）变化（城市化）对水流的影响（美国佛罗里达州）。选择该分水岭是因为它受到各州和联邦机构的深入研究，并具有气象和河流排放的长期历史数据。该项目的总体目标是检验SWAT模型在预测具有不同LU和气象数据（包括预测未来LU的水位图的能力）的流量时的适用性。通过将SWAT生成的水文图与（i）各种LU情景（即确定城市化对水流/水文图的影响）与当前和将来的/模拟的LU，以及（ii）真实的和模拟的气象数据进行比较，可以实现此目标。然后，使用美国地质调查局（USGS）的“测得流量数据”对所有LU和气象情景（真实和模拟数据集）生成的“ SWAT模型预测的流量”进行验证。 SWAT模型的内置方法用于生成模拟气象数据。结果表明，SWAT模型可以有助于分析河流上的各种土地利用变化（例如，随着土地利用变化为城市的变化）。但是，结果还表明，SWAT模型预测的水文图对所使用的气象数据（即真实与模拟，短期与长期）敏感。

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