15.4.10. ROLE OF IT IN THE ENVIRONMENT AND HUMAN HEALTH

Technology has played a key role in the development of human society. Modern technologies such as information technology have changed the human lifestyle.

This chunk highlights the profound changes that technology, especially information technology (IT), has brought to human society. IT encompasses a wide range of devices and systems, impacting how we communicate, access information, and manage various aspects of our lives. These changes have transformed our daily routines, making tasks easier and more efficient.

Think about how smartphones have revolutionized communication. Before, we relied on landline phones or letters to communicate, often resulting in delays. Now, we can instantly connect with anyone around the world through texting, social media, or video calls, showcasing the significant impact of IT on our interactions.

1. Remote sensing: Remote Sensing according to Campbell(1987) is the science of deriving information about the earth’s land water areas from images acquired at a distance.

Remote sensing involves collecting data about the Earth's surface from a distance, typically through satellites or aircraft. This technique uses sensors to capture images based on electromagnetic energy reflected off various features, like land and water. The data collected can be used to monitor environmental changes, assess natural resources, and manage land effectively.

Consider a farmer using satellite images to monitor crop health. By analyzing the images, the farmer can identify areas that require more water or fertilizer, helping to optimize yield without wasting resources.

Steps: 1) Making observation using sensors (camera, scanners, radiometers, radar, and lasers) mounted on platforms (ground, aircraft, satellites, balloons).

Remote sensing involves a series of steps: First, sensors collect data from various platforms such as satellites or drones. The sensors capture images and information about the Earth's surface. Next, this data is recorded and transmitted to ground stations for analysis. The process allows scientists and environmental managers to monitor conditions over large areas more effectively than traditional methods.

Imagine using a drone equipped with a camera to inspect a forest for signs of disease or pest infestations. This method allows for a detailed view of the forest and can help identify areas that need treatment, demonstrating how remote sensing gives us a broader perspective on environmental monitoring.

2. GIS (GEOGRAPHICAL INFORMATION SYSTEM): GIS and Environmental Impacts Assessment: Tomlin (199O) defines a GIS as ‘a configuration of computer hardware and software specially designed for the acquisition, maintenance and use of cartographic data.’

Geographical Information Systems (GIS) are crucial tools used for managing spatial data. They consist of hardware and software that allow users to gather, analyze, and visually display data related to geographic locations. GIS can be used across various fields, including environmental management, helping to analyze data and make informed decisions based on spatial relationships.

Think of how city planners use GIS to design new parks or roads. By mapping out existing resources and demographic information, planners can ensure that new developments meet community needs while minimizing environmental impact.

The capabilities of GIS include storing large multidisciplinary datasets, identifying complex interrelationships, evaluating changes over time, and systematic updating of geographic data.

GIS technology offers several powerful capabilities: it can store extensive datasets that encompass various disciplines, allows for the analysis of complex relationships between different environmental factors, and it can evaluate changes over time through historical data comparisons. This enables effective planning and decision-making regarding environmental management and development.

Consider how emergency responders use GIS during natural disasters, like floods. They can overlay maps of flooded areas with population data to effectively plan evacuation routes and allocate resources, demonstrating GIS’s role in critical decision-making processes.

In Project definition: During project identification and definition, the project proponent conducts feasibility studies and defines the usefulness of the study.

GIS plays an important role in environmental impact assessments by helping project teams define and analyze the geographic characteristics of a proposed project site. This involves conducting feasibility studies to assess the project's potential benefits and environmental impact based on its location and surrounding features.

Imagine a developer planning to build a new shopping center. Using GIS, they can assess the potential environmental impact by looking at factors like local wildlife habitats, traffic patterns, and nearby communities, ensuring that the project fits well within the environment.

3. Human health: Information technology also plays a key role in human health. It helps the doctors to monitor the health of people of that area.

Information technology significantly aids in improving human health by allowing for better health monitoring and data management. Doctors can use IT tools to track health information, respond quickly to outbreaks of diseases, and consult with specialists remotely. This capability has become increasingly vital in managing public health and ensuring timely medical interventions.

Consider telemedicine services that allow patients to consult a doctor from home via video calls. This service not only saves time but also ensures that specialized care can reach rural or underserved populations, exemplifying how IT enhances healthcare accessibility and responsiveness.

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