application of remote sensing in urbanization.pptx

Application of remote sensing in urbanization

1. Application of Remote sensing in urbanization Digital design is like painting, except the paint never dries. .. Showkat Majéed 2 3067120015 Semester 2nd Department of Geoinformatics University Of Kashmir Srinagar

2. Urbanization It involves the migration of people from rural to urban areas in search of better economic opportunities, infrastructure, and quality of life. As cities grow, they face challenges such as congestion, pollution, and housing shortages, necessitating sustainable urban planning and development strategies. Urbanization refers to the population shift from rural areas to urban areas, the gradual increase in the proportion of people living in urban areas, and the ways in which each society adapts to this change.

3. Remote Sensing Remote sensing involves gathering information about the Earth’s surface without direct physical contact. This is typically done using satellites or aircraft equipped with sensors that capture data in various wavelengths of light. These sensors can detect features such as vegetation health, land use patterns, temperature variations, and pollution levels. Remote sensing plays a crucial role in fields like environmental monitoring, agriculture, forestry, urban planning, and disaster management, providing valuable insights for decision-making.

4. Why Remote sensing 1. **Global Coverage:** It can gather data from remote or inaccessible areas, providing information about regions that are otherwise difficult to reach.

2. **Cost Efficiency:** Remote sensing often proves more cost-effective than traditional ground-based methods, especially for large-scale mapping and monitoring projects.

3. **Time Efficiency:** It allows for rapid data collection over large areas, reducing the time needed for surveying and analysis.

4. **Temporal Monitoring:** It enables repeated observations over time, facilitating the study of temporal changes in land use, vegetation health, and environmental conditions.

5. Monitoring Urban Expansion Remote sensing can track urban sprawl by analyzing changes in land cover over time.
It helps in assessing the impact of urbanization on the environment
Satellite imagery can detect urban growth patterns and expansion of infrastructure Satellites like Landsat (30m resolution) and Sentinel-2 (10m resolution) track changes in land use over time, allowing planners to monitor urban expansion and manage growth sustainably.

6. Managing urban Infrastructure Remote sensing aids in monitoring and managing urban infrastructure such as roads, buildings, and utilities. It enables city planners to make informed decisions for sustainable urban development.

High-resolution imagery can be used to identify and assess the condition of infrastructure assets. High-resolution satellites like WorldView-3 (31 cm resolution) and GeoEye-1 (41 cm resolution) provide detailed imagery for planning infrastructure projects such as roads, buildings, and utilities.

7. Urban heat island effect Remote sensing technology can analyze the urban heat island effect by measuring surface temperatures in urban areas.
It helps in understanding the impact of heat islands on urban microclimates and human health.

Satellite data can support strategies to mitigate heat island effects through urban design and green infrastructure.

8. Remote sensing plays a crucial role in disaster management by providing real-time information during emergencies.
It helps in assessing the extent of damage caused by natural disasters in urban areas.
Satellite imagery can support emergency response efforts and aid in post-disaster recovery planning. Disaster Management in urban areas RapidEye (5m resolution) and PlanetScope (3-5m resolution) satellites offer frequent revisit times, enabling quick assessment of urban disasters like floods, fires, and earthquakes for effective response and recovery planning.