城市化动态与土地表面温度变化之间的相互作用的定量评估,使用通用添加模型与PDP相结合,用于可持续的城市规划和管理
Ahmed Ali A Shohan1, Ahmed Ali Bindajam1, Hoang Thi Hang2
1Department of Architecture, College of Architecture and Planning, King Khalid University, Abha, Kingdom of Saudi Arabia.
Environmental science and pollution research international
|September 24, 2024
概括
阿西尔地区的快速城市化从1990年到2020年显著增加了陆地表面温度 (LST) 和城市密度. 这项研究揭示了土地利用变化,城市扩张和气温上升之间的强烈联系,影响生态平衡.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 地理空间分析的研究.
背景情况:
- 阿西尔的山区面临着快速,不系统的城市化,土地表面温度 (LST) 的增加和挑战生态平衡.
- 了解土地利用和土地覆盖 (LULC) 变化,城市化,城市密度和LST之间的相互作用对于可持续的城市规划至关重要.
研究的目的:
- 调查阿西尔地区城市化过程,城市密度和相关的LST之间的复杂相互作用.
- 量化LULC变化及其对LST在三十年 (1990-2020) 的影响.
主要方法:
- 使用随机森林算法对1990年,2000年和2020年的土地使用和土地覆盖面 (LULC) 地图.
- 城市化指标 (LCCR,LCI,LEI,MLEI,AWLEI) 的分析,城市密度建模 (卷积内核) 和LST分析 (单窗口算法).
- 评估表面城市热岛 (SUHI) 的贡献和关系建模,使用通用添加模型 (GAMs) 和部分依赖地块 (PDPs).
主要成果:
- 观察到显著的LULC转移,城市区域在1990年至2020年间从69.40平方公里扩大到338.74平方公里.
- 平均LST从40.51°C增加到46.73°C,高温区 (50-60°C) 的大幅上升.
- GAM证实了城市密度增加和LST之间的统计学上显著的积极关系.
结论:
- 阿西尔的城市化急剧增加了城市范围和土地表面温度,建筑区呈现着持续的变暖.
- 该研究提供了对城市化动态,土地覆盖面的变化和温度变化的定量见解,这对于可持续发展战略至关重要.
- 需要有效的城市规划和管理,以减轻城市化对环境和人类福祉的不利影响.
相关概念视频
Global Climate Change
24.3K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.3K
Quantifying Heat
54.1K
Thermal Energy Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold”, which depends on the amount of thermal energy. When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE) (or higher thermal energy), and the object is perceived as “hot”, or it is described as being at a...
54.1K
Radiation: Applications
1.1K
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...
1.1K
Regression Analysis
5.6K
Regression analysis is a statistical tool that describes a mathematical relationship between a dependent variable and one or more independent variables.
In regression analysis, a regression equation is determined based on the line of best fit– a line that best fits the data points plotted in a graph. This line is also called the regression line. The algebraic equation for the regression line is called the regression equation. It is represented as:
In regression analysis, a regression equation is determined based on the line of best fit– a line that best fits the data points plotted in a graph. This line is also called the regression line. The algebraic equation for the regression line is called the regression equation. It is represented as:
5.6K
Precipitation Processes
431
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
431
What is Climate?
18.4K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.4K


