ABSTRACT

Needs for extending the principles of a sustainable urban drainage approach to the winter season with snow and pollutant accumulations have been so far unanswered. One of the first steps to remedy this situation is to make available a prototype snow management tool (PSMT) described herein. It is a simple empirical spreadsheet tool, as yet untested, which uses generally available input data to simulate accumulation of snow (as snow water equivalent) and pollutants in an urban catchment, intermittent snowmelt episodes, and snow management options including in situ melting, removal from the catchment, treatment of snowmelt by settling, and snow disposal in the receiving waters. The tool output comprises snow and the selected pollutant mass balances, and pollutant concentrations in snowmelt from individual snow deposits. Such data provide decision support for choosing the methods of disposal for individual snow deposits. The testing and refinement of the tool is planned.

摘要

到目前为止，需要将可持续城市排水方法的原则扩展到积雪和污染物积累的冬季。补救这种情况的首要步骤之一是提供此处描述的原型雪管理工具 (PSMT)。这是一个简单的经验电子表格工具，尚未经过测试，它使用普遍可用的输入数据来模拟城市集水区的积雪（作为雪水当量）和污染物的积累、间歇性融雪事件以及积雪管理选项，包括原位融化、清除从集水区、通过沉降处理融雪以及在接收水域中处理雪。工具输出包括雪和选定的污染物质量平衡，以及来自单个雪沉积物的融雪中的污染物浓度。这些数据为选择处理单个积雪的方法提供了决策支持。该工具的测试和改进是计划好的。