Remote sensing is a method that involves obtaining data, detection, analysis, observation of the physical characteristics of a region by recording. It is done by capturing the mirrored radiation. Application of remote sensing in mapping include:
1. Planimetry
Planimetry means measuring distances, angles, and areas on a plane, particularly on a map. Planimetry includes identification and geolocation of basic land cover, drainage and evolution options, urban infrastructure, and transport networks within the x,y plane. Remote sensing provides a way of identifying and presenting planimetric knowledge on convenient media and economical Manner.
2. Digital elevation models (DEM’s)
A digital elevation model (DEM) may be a digital illustration of the ground surface, topography, or piece of land. Additionally, it’s known as a digital piece of the land model(DMT). DEM is crucial for topographical parameterization, particularly for erosion and avoidance analysis. Also, hill slope geophysics, watersheds, groundwater flow, and contamination transport studies. Elevation models facilitate contour lines for topographical maps, slopes, and side models.
3. Topographical mapping
Remotes sensing is an important tool for topographical mapping in the past, present, and most importantly, future. Throughout the history of map creation, surveyors and cartographers have frequently strived to boost getting and presenting knowledge. Land measurement was a baseline for mapping within the past, and with the invention of photography, it evolved gradually. Remote sensing was introduced with the evolution. As a result, aerial photography started taking root. It has made photography to become a mapping tool.
4. Soil and piece of land mapping
Remote sensing is used for soil mapping. It identifies land type, vegetation, soil survey, and land use elements. On the other hand, land mapping means mapping an area with certain characteristics. Remote sensing provides information about the physical characteristics of an area like forest and soil survey. This process helps manage land parcels and allocate a land area for use.
5. Disease mapping
Disease mapping uses maps as a visual illustration of advanced geographical knowledge. It gives a general summary of the disease state of affairs in an exceedingly outlined geographical region. Remote sensing products are prolifically applied and utilized in disease mapping and medicine. Since epidemiology means identifying the cause of a disease, this has given remote sensing room into the public health industry. The remote sensing product embraces numerous vegetation indices and environmental proxies derived from satellite pictures.
6. Base maps for visual reference
Most modern mapping technologies square measure are supported by remote sensing, google maps, NASA’s globe read, and open street maps.
7. 3D mapping at uranium-rich sites
Multiple satellite acquisitions and 3D mapping systems are used to differentiate volumes at Uranium enrichment sites in Iran.
8. Geology mapping
Remote sensing uses satellites, primarily based on mapping and integration in a GIS platform. It facilitates geoscientists to map the potential mineral zones, thus saving time easily.
9. Discovery of features
Remote sensing helps in identifying and mapping the ocean floor. These include large mountain ranges and deep canyons that are not visualized before.
