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Showing posts with the label Remote Sensing applications

Application of Remote Sensing and GIS in Hydrological Studies

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Hydrology encompasses the study of water on and beneath the surface of the earth, occurrence of water, movement of water, physical and chemical properties of water and its relation with the surrounding environment. 'Hydro' word comes from the Greek word, which means water and logy means study. So study of water can be defined as ‘hydrology’
Hydrology studies indirectly also related to many other studies such as land use/land cover studies, forestry, agriculture, since existence of water in these studies play significant role. Changes in hydrology are dynamic, it changes with years as well as with change in season and bring huge impact on surrounding environment. Therefore require regular and sometimes frequent observations to assess and control the negative impact on hydrology of any given area.
Satellite remotely sensed observations enhance understanding of hydrological studies and impact of surrounding environment on hydrological processes by having global spatial and time s…

Application of Remote Sensing in Agriculture

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IntroductionAgriculture is very important for economy of both developed and developing countries. Agriculture productions provide food, which is necessity of everyone to survive. Therefore agriculture production in cost effective manner is the main need of each farmer. A farmer needs resourceful knowledge and information of products to form a viable strategy for farming.
Remote sensing is a tool which help to ascertain crop health and damage, potential yield, soil conditions. Remote sensing data in the form of satellite images and aerial photographs are used for crop mapping, classification, health and monitoring farming process. Remote sensing applications in agriculture are below- Crop type mapping and classificationCrop condition assessmentEstimate crop yieldSoil behavior analysisMapping and monitoring of soil and crop
Crop Type Mapping Using Remote Sensing TechnologyCrop identification and mapping is important for both government agencies and private agencies to know the impact of c…

Application of Remote Sensing in Land Cover and Land use Mapping

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IntroductionLand cover and land use mapping is one the most imperative and typical application of remote sensing. Land cover represents the physical condition of the earth surface features such as forest; grassland etc. Whereas land use reflects man-made activities includes use of land such as residential area, industrial zone, agriculture field etc. Land cover include land surface feature, those can be natural, semi-natural and man-made and these features can be observed directly on satellite images. On the other hand, Land use is classified based on utilization of land. 
It can be categorized into residential, commercial, urban, rural and agriculture etc. Land use indicates the employment of the land by human, so if any change or shift in use of land such change from agriculture to residential/commercial for any given location brings the change in land use.
Remote Sensing techniques are the most practical, cost efficient and provide satellite data beyond human vision. Remote sensing p…

Application of GIS and Remote Sensing for Air Pollution Assessment

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Air Pollution become threat to daily life as already faced severe attack of pollution in New Delhi and its surrounding. Population and increase in transportation system specially vehicle growth playing significant role in increasing air pollution. As well as built-up growth in the form of development also affecting and increasing pollution. Factors Affect Air PollutionPopulation growth and in-migration of poor people influence the urban centers. Increasing pressure on land and other resources in the form of industrial and commercial development. urban sprawl is seen as one of the potential threats to pollution and many more.
Here in this article demonstrated that how GIS and remote sensing can be used to find the affect of urban and population growth on air pollution of a city and described with real data analysis.
Local pollution patterns in cities are mainly related to land use category, transportation network, and air flushing rates. Here in this study, an integrated approach of remo…

Application of Remote Sensing and GIS in Reef Ecosystem

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Application of Remote Sensing and GIS in Coral Reef AssessmentImpact assessment of Human activities on reef ecosystemCoral reefs are large underwater structures composed of the skeletons of colonial marine invertebrates called coral. The corals have a symbiotic, or mutually beneficial, relationship with the zooxanthellae. These algae live inside the coral polyp's body where they photosynthesize to produce energy for themselves and the polyps. The coral polyps, in turn, provide a home and carbon dioxide for the algae. Zooxanthellae also provide the coral with their lively colors as most coral polyp bodies are clear and colorless without zooxanthellae. 
Coral reefs cover less than 1% of the ocean floor, but they are among the most productive and diverse ecosystems on Earth. About 25% of all known marine species rely on coral reefs for shelter, food and breeding. Coral reefs are the primary habitat for more than 4,000 species of fish and thousands of other plants and animals. Corals a…

Geo-Spatial Technology for Suitability and Priority Land Analysis

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Land Suitability and Priority Analysis GIS is a very strong tool which provide platform to integrate mathematical and logical concepts together to create, analyze and interpreted data for planning, monitoring and management of land resources. Below article is one of the example in mathematical and logical concepts combined together to assess suitable or priority land for development purpose.
Land suitability is the assessment of a given type of land for a defined and priority use. The land may be considered in its present condition or after improvements. The process of land suitability classification is the appraisal and grouping of specific areas of land in terms of their suitability for defined uses. Land suitability analysis aims to identify the most appropriate spatial pattern for future land uses based on specific requirements. 
Land suitability analysis involves the application of criteria to the landscape to assess where land is most and least suitable for development of structur…

Geo-Spatial Technology for Natural Resources Studies

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GIS and Remote Sensing Application for Mining Development and Its Impact on Urban SprawlThis article is showing the application of remote sensing data in finding relation between commercial development and urban sprawl. In this work, natural resource excavation as calls mining mapped and also find harmonic relationship with urban sprawl. Mapping done by remote sensing can be integrated with mathematical and statisticalmodeling to know the future changes. Makrana Mining AreaMakrana is located at 27°03′N/74°43′E-27.05°N/74.72°E. Makrana is a town in the Nagaur district of Rajasthan state of India. It has plenty of marble outcrops. It is famous for the white marble mined from the mines around it. It has an average elevation of 408 meters (1338 feet). The marble mines are located in the vicinity of the Makrana city. So these are directly affecting the human environment of the city. Therefore it is an interesting location for assess the influence of mines on urban sprawl
This area has vast…