桥梁精度和效率:在城市生态学中推进平均辐射温度测量
Aubrey Benson1, Ben R Crawford2, John M Frank3
1Faculty of Forestry, University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada. adbenso@student.ubc.ca.
International journal of biometeorology
|October 16, 2025
概括
测量城市热量对于城市规划至关重要. 这项研究表明,低成本的传感器和机器学习可以准确地绘制人类的热体验,改进热管理策略.
科学领域:
- 城市气候学 城市气候学
- 环境科学 环境科学
- 微气象学 微气象学
背景情况:
- 极端的夏季高温对城市环境构成越来越大的挑战.
- 精确测量人类的热体验对于有效的土地管理至关重要.
- 平均辐射温度 (MRT) 是超局部城市热量评估的关键指标,但很难测量.
研究的目的:
- 评估低成本地球温度计数据的准确性,以捕获城市热模式.
- 开发和评估一个集成六向和地球温度计数据的机器学习模型,以改进MRT测量.
- 用各种微气象仪器推进城市热量评估的实用方法.
主要方法:
- 在两个夏天的半干旱城市应用了六方向金标准方法和地球温度计方法.
- 收集了跨多个空间聚合级别的现场数据,重点关注住宅地块.
- 使用收集的现场数据开发和训练了一种新的机器学习模型.
主要成果:
- 从可访问的传感器收集的全球温度计数据,准确地捕获了景观的热模式.
- 结合六向和地球温度计数据的机器学习模型显示了提高准确性和效率的潜力.
- 证明了城市热量研究中低成本和高成本仪器的实用性.
结论:
- 低成本,聚合的地球温度计数据可以有效地绘制城市热模式.
- 机器学习提供了一个有希望的方法来提高城市热量测量的准确性和效率.
- 这项研究提供了解决城市社会生态热挑战的实际方法.
相关概念视频
Temperature Measurement Sites
3.2K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
3.2K
Equipments Used to Measure Body Temperature
1.7K
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
1.7K
Distance Corrections
272
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
272
Assessing Body Temperature - Axilla
1.2K
Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
1.2K
Thermometers and Temperature Scales
7.1K
Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
As many physical properties depend on temperature, the variety of thermometers is...
As many physical properties depend on temperature, the variety of thermometers is...
7.1K
Radiation: Applications
1.7K
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
The average...
1.7K


