Related Experiment Video
Updated: Aug 29, 2025
09:55
Surface Renewal: An Advanced Micrometeorological Method for Measuring and Processing Field-Scale Energy Flux Density Data
Published on: December 12, 2013
8.8K
Urban morphology detection and it's linking with land surface temperature: A case study for Tehran Metropolis, Iran
Sajad Khoshnoodmotlagh1, Alireza Daneshi1, Shervan Gharari2
1Department of Watershed management sciences and engineering, Gorgan University of agricultural sciences and natural resources, Gorgan, Iran.
Sustainable Cities and Society
|September 12, 2022
Summary
Urban expansion significantly impacts local climate. This study used Local Climate Zones (LCZ) and Land Surface Temperature (LST) analysis in Tehran, finding built-up areas increase temperature while other zones decrease it.
Area of Science:
- Urban climatology
- Remote sensing
- Geographic information systems (GIS)
Background:
- Urban expansion and land cover alteration intensify local climate change.
- The Local Climate Zone (LCZ) framework classifies urban morphology and its thermal impact.
- Understanding the relationship between LCZ and Land Surface Temperature (LST) is crucial for urban planning.
Purpose of the Study:
- To investigate the effect of land cover changes on local climate in Tehran Metropolis.
- To map Local Climate Zones (LCZ) and analyze Land Surface Temperature (LST) variations.
- To explore the relationship between LCZ types and LST over time.
Main Methods:
- Utilized Landsat imagery (Landsat 5, 7, and 8) for LCZ mapping in Tehran.
- Classified LCZ and LST using remote sensing data for 1990, 2004, and 2018.
- Employed supervised classification with optical (OLI) and thermal (TIRS) data.
Main Results:
- Identified 13 LCZs from Landsat 5 and 14 LCZs from Landsat 7/8 imagery, with 62% overall accuracy.
- Built-up LCZs (compact high-rise, mid-rise, industrial) showed increased LST.
- Non-built-up LCZs, except bare land, exhibited decreased LST.
Conclusions:
- Tehran's urban structure significantly influences local LST.
- Combination of optical and thermal remote sensing data is effective for LCZ and LST classification in semi-arid urban environments.
- Findings support evidence-based urban planning to mitigate climate change impacts.
Keywords:
Accuracy assessmentLand surface temperatureLandsat imageryLocal climate zoneTehran metropolisMore Related Videos
Related Concept Videos
01:25Methods of Obtaining Topography
106
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
106
01:14Temperature Measurement Sites
2.1K
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...
2.1K
01:21Manipulation and Analysis
55
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
55
01:29Topographic Surveying and Contours
219
Topographic surveying is critical for documenting the Earth's surface, focusing on capturing elevations, slopes, and natural and man-made features. It is essential in construction planning, water resource management, and land-use analysis. The primary outcome of such surveys is a topographic map, which uses contour lines to visually represent the shape and slope of the terrain, providing valuable insights into the landscape's characteristics.Contour lines are fundamental to understanding the...
219
01:29Levels of Use of a GIS
84
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
84
01:19Assessing Body Temperature - Temporal Artery
647
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
647