Remote sensing is used for city planning and architectural purposes, in addition to military observations. The technique does not disturb the landscape, enabling costly and slow data collection on the ground. Multivariate analysis techniques are also applied to reach conclusions from data collected through remote sensing. Towards the late 20th century, interpretation of the combined superficial and geophysical remote sensing data was introduced and many applications and usage have come to the fore since then, leading to the progress of multivariate digital approach.
When covering frigid zones of the earth near the polar surfaces, several modern equipments and methods like micropenetrometry are used. Infrasonic help to recognize avalanches in infrasonic and quantify lateral flow of water within the snow pack.
Remote sensing enables together information and draw inferences about objects and phenomena without making any physical connection to extract any data or signals. The OMICS journal of Geophysics and Remote Sensing covers research articles with focus on new developments in remote sensing.
The OMICS Editorial board is responsible for reviewing the manuscripts submitted by various authors for publication in Journal of Geophysics and Remote Sensing. The articles are published with the date of submission and acceptance following review, and could be shared and transmitted under Open Access standards with proper attribution.
Photometers are the basic class of remote-sensing images, which reflect and emit radiation of a wide range of frequencies, including visible and infrared. These are useful for chemical data pertaining to the atmosphere, based on emission spectra of various chemicals. Hyper spectral imaging, with complete spectral information for each pixel of the image, is produced for use in biology, defense, environmental studies and mining. An optical instrument known as microdensitometer is used to measure optical densities. It is a granularity instrument for use in the microscopic domain to measure optical densities.
Geophysics is the study of landscape, rocks and other terrains that can be used for further observation of land usage and agricultural phenomenon. Aerial photographs in the form of stereographic pairs have been used for tracing potential routes on highways by concerned transport departments, in addition to producing topographic maps.
Geo referencing involves the tallying of points in images that are extrapolated in the process of warping to produce accurate spatial data. In 1990s, most of the satellite images had been georeferenced in terms of spatial data, along with the scope for correction of images through radiometric and atmospheric methods.
The process of gridding, digitizing and registering the data types were enhanced in the 1970s, and also boosted the prospects of remote sensing. The sub fields include holography, optics, photoacoustic imaging, ultrasound imaging, thermal imaging and many more.
Several factors are interrelated with Geo-sensing like the mix of hardware platforms, hazardous conditions and accessibility, and power availability. The wireless sensor network technology is used for detecting time-limited tremors, instead of continuous sampling on account of battery-deficient Geo-sensor platforms. OMICS journals seek to portray the most modern techniques in the field, with an unbiased evaluation of the emerging challenges and obstacles fro geosensing networks.
The OMICS Publishing Group, based in the US, aims at sharing scientific knowledge by publication of research articles in journals, organizing international conferences, and developing eBooks for free availability of knowledge to the scientific learners and researchers.
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Geophysics: Lecture 1. Introduction to Geophysics