degree day

简明释义

度 日

英英释义

例句

1.Farmers often rely on degree days to determine the best time for planting crops.

农民通常依赖度日来确定最佳播种时间。

2.The local weather service provides forecasts that include degree days for agricultural planning.

当地气象服务提供的天气预报中包括用于农业规划的度日。

3.By tracking degree days, we can better predict heating and cooling needs throughout the year.

通过跟踪度日，我们可以更好地预测全年供暖和制冷的需求。

4.The energy consumption report indicated a significant increase in usage on degree days.

能源消耗报告显示在度日期间使用量显著增加。

5.The heating system was designed to maintain comfort even during the coldest degree days.

供暖系统的设计旨在即使在最冷的度日也能保持舒适。

作文

Understanding the concept of degree day is essential for various industries, particularly in agriculture, energy management, and climate studies. A degree day is a unit that measures the demand for energy needed to heat or cool a building. It is calculated based on the difference between the outdoor temperature and a baseline temperature, typically set at 65 degrees Fahrenheit (18 degrees Celsius). When the outdoor temperature falls below this baseline, heating degree days accumulate, indicating the need for heating. Conversely, when the temperature rises above the baseline, cooling degree days are counted, reflecting the need for air conditioning.The significance of degree days can be observed in several sectors. In agriculture, farmers utilize degree days to predict plant growth and development. For instance, certain crops require a specific number of degree days to reach maturity. By monitoring these units, farmers can make informed decisions about planting and harvesting times, ensuring optimal yield.In the energy sector, utility companies rely on degree days to forecast energy demand. During colder months, an increase in heating degree days indicates higher energy consumption for heating purposes. This data allows energy providers to manage their resources efficiently, ensuring that they meet consumer demands without overproducing energy. Similarly, during warmer months, cooling degree days can help predict the strain on electricity grids due to increased air conditioning use.Moreover, the concept of degree days plays a crucial role in climate research. Scientists analyze historical data on degree days to study trends in temperature changes over time. This information can provide insights into climate change impacts, as shifts in degree days patterns may indicate changing weather conditions. For example, a rise in annual cooling degree days could suggest hotter summers, while an increase in heating degree days might point to colder winters.To calculate degree days, one can use a simple formula. For heating degree days, subtract the average daily temperature from the baseline temperature of 65°F. For cooling degree days, subtract the baseline from the average daily temperature when it exceeds 65°F. The resulting values are summed over a specified period, such as a month or a year, to give a comprehensive view of heating or cooling needs.In conclusion, the concept of degree day is a vital tool across various fields. Its applications in agriculture enable farmers to optimize their practices, while energy companies use degree days to manage supply effectively. Additionally, climate researchers depend on degree days to understand and predict changes in our environment. As we continue to face challenges related to energy consumption and climate change, understanding degree days will remain increasingly important for making informed decisions that impact our future.

理解度日这一概念对于多个行业至关重要，特别是在农业、能源管理和气候研究方面。度日是一个单位，用于测量加热或冷却建筑物所需的能量需求。它是根据室外温度与基准温度之间的差异来计算的，通常设定为华氏65度（摄氏18度）。当室外温度低于此基准时，供暖度日会累积，表明需要供暖。相反，当温度高于基准时，会计算制冷度日，反映出对空调的需求。度日的重要性可以在多个领域中观察到。在农业中，农民利用度日来预测植物的生长和发育。例如，某些作物需要特定数量的度日才能成熟。通过监测这些单位，农民可以做出关于种植和收获时间的明智决策，确保最佳产量。在能源部门，公用事业公司依赖度日来预测能源需求。在寒冷的月份，供暖度日的增加表明用于供暖的能量消耗增加。这些数据使能源供应商能够有效管理资源，确保他们满足消费者的需求而不至于过度生产能源。同样，在较温暖的月份，制冷度日可以帮助预测由于空调使用增加而对电网的压力。此外，度日的概念在气候研究中也起着至关重要的作用。科学家分析历史数据中的度日以研究温度变化的趋势。这些信息可以提供有关气候变化影响的见解，因为度日模式的变化可能表明天气条件的变化。例如，年制冷度日的上升可能暗示夏季变热，而供暖度日的增加可能指向冬季变冷。要计算度日，可以使用简单的公式。对于供暖度日，从65°F的基准温度中减去平均每日温度。对于制冷度日，当平均每日温度超过65°F时，从基准中减去。将结果值在特定时期（例如一个月或一年）内相加，以获得供暖或制冷需求的全面视图。总之，度日的概念是各个领域的重要工具。它在农业中的应用使农民能够优化他们的实践，而能源公司利用度日有效管理供应。此外，气候研究人员依赖度日来理解和预测我们环境的变化。随着我们继续面临与能源消耗和气候变化相关的挑战，理解度日将变得越来越重要，以便做出影响我们未来的明智决策。