4.4 Snow meltAn additional objectiv

4.4 Snow melt
An additional objective of this research was to determine what effect the snow melting off the panels had on the power output. Although Ross (1995) had modelled that it could take
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anywhere from 1364 hours to 2019 hours for the snow to melt off panels at locations across Canada, the results of this study were different. The time at which the panels were completely cleared of snow varied between noon and 3:00pm of the same day that the treatment panels were removed of snow. This means that it only took between three and six hours for all the snow to be removed from the treatment panels. A possible factor that caused this large discrepancy between the two studies is that Ross (1995) assumed that there was an accumulation of 5cm of snow on the panel and that the temperature remained below 0°C. Neither of these standards was achieved in this study; the largest snow depth recorded was 2cm on the panels and there were many instances when the temperature was above 0°C (Environment Canada, 2012).
Throughout the data collection period it was also noted that snow on the treatment panels melted off some of the panels faster than others. Usually, the snow on each panel melted off within minutes of each other, but there were a few exceptions. The first day that this occurred was on January 21st at the Rowe Building location. Since snow type, coverage and depth varied across the panels it is presumed that these were the reasons why the snow melted off some of the panels faster than others. Some of the treatment panels had patches of a thin ice layer whereas others had thicker ice build-up on top of which was a layer of snow (Appendix D). It is possible that the larger the amount of snow on the panel, the longer it took the panels to be cleared of snow. The second day was on March 2nd at the residential neighbourhood study location. From analyzing the camera images, it appears as though shading of certain panels cause them to melt at a slower rate. Since the impact of shading was not analyzed in this study, it cannot be concluded with absolute certainty that this was the main reason why some panels were covered with snow for longer periods of time.

結果 (中文) 1:

4.4 雪融化
附加这项研究的目的是确定什么影响雪融化掉了输出功率的面板。尽管罗斯 (1995 年) 曾仿照，它可以采取
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1364 小时到 2019 小时雪融化掉板地点加拿大各地，从任何地方的这项研究结果不同。在这两个事务委员会被完全清除的雪的时间中午和 3:0 下午的治疗小组被去除的雪在同一天之间各不相同。这意味着只花了所有的雪要从治疗面板删除为三至六个小时之间。造成这么大的差距之间的两项研究的一个可能因素是雪地的罗斯 (1995 年) 假设有 5 厘米厚上，小组的积累和温度低于 0 ° c。这些标准既不被取得的这项研究 ；录得的最大积雪深度是 2 厘米的板上，有很多情况下，温度高于 0 ° C （加拿大环境部，2012年) 的时候.
还指出数据期间那雪的治疗板上融化掉一些小组的比别人快。通常，每个面板上的雪融化掉的彼此，几分钟内，但有几个例外。发生这种情况的第一天是 1 月 21 日在罗大厦的位置。自雪类型、 覆盖范围和深度异的面板则推定这些就是为什么雪融化掉一些小组的比别人快的原因。治疗小组的一些有薄冰层的修补程序，而其他有较厚的冰集结，再加上是一层的雪 (附录 D)。它是可能的越大的降雪量在面板上，时间越长花了面板以清除积雪。第二天是 3 月 2 号在居民区研究地点。从分析照相机图像、看来，就好像某些小组的底纹导致它们融化速度慢。因为不在这项研究分析了底纹的影响，它不能结束具有绝对的确定性这就是为什么一些面板被雪覆盖着较长一段时间的主要原因。

結果 (中文) 3:

4.4雪融化
本研究的另外一个目的是确定积雪融化掉板对输出功率的影响。虽然罗斯（1995）是模仿，可能需要
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时间从1364小时到2019小时的雪融化了面板的地点在加拿大，这项研究的结果是不同的。时间在该板被完全清除积雪变化的中午和下午三点之间的同一天，处理板被雪。这意味着，它只花了三小时和六小时之间的所有的雪都是从处理面板中删除。一个可能的因素造成的两项研究之间的大的差异是罗斯（1995）认为有5cm的面板上的雪，温度保持在低于0°C.这些标准没有实现在这项研究中积累；最大积雪深度为2cm，记录板上有很多的情况下，当温度高于0°C（加拿大环境，2012）。
整个数据收集期间还指出，在处理板雪融化掉某些面板比别人快。通常，每个面板上的雪融化了彼此的几分钟内，但也有一些例外。这种现象发生的第一天是在一月二十一日罗楼的位置。由于雪的类型，范围和深度在面板推测这些原因，雪融化掉某些面板比别人快变化。一些治疗板的薄冰层补丁而其他有较厚的冰堆积在上面是一层雪（附录D）。这是可能的，大的降雪量在面板上，再把面板可以清除积雪。第二天是三月二日在住宅区的定位研究。通过对摄像机的图像，似乎某些面板，遮光导致他们以较慢的速度融化。由于遮光的影响不在本研究分析的结论，它不能绝对肯定，这是主要的原因是一些面板上有较长时间的雪。