scholarly journals Spectral Band Optical Analysis for Shape and Material of Terrestrial Imaging by Using Remote Sensing Technique

2018 ◽  
Vol 3 (5) ◽  
pp. 52
Author(s):  
Safaa Mustafa Hameed ◽  
Abdulrazak A. S. Mohammed
Keyword(s):  
Remote Sensing ◽  
Spectral Band ◽  
Satellite Image ◽  
Processing System ◽  
Physical Test ◽  
Remote Sensing Technique ◽  
Gate Structure ◽  
Ancient City ◽  
Remote Sensing Techniques ◽  
Transmission And Absorption

Photogrammetric grid is the generation of processing system (which is one of the remote sensing techniques) with efficiency developed based on imaging and computer cluster parallel processing; the new application of photogrammetric technique has been applied on the Castel-Gate of Erbil city. It is a way of analyzing the objects especially for a traditional one "the castle in the ancient city of Erbil". This paper got the analysis of Erbil Castel-Gate structure using visible & IR spectral band analysis for transmission and absorption energy (El ) based on civil study, as well as the analyzing of chemical & physical test. On other hand the Satellite image of castle has been analyzed by using photogrammetric & GIS techniques. The result calculated the reflected energy values. 

scholarly journals On the Use of Tri-Stereo Pleiades Images for the Morphometric Measurement of Dolines in the Basaltic Plateau of Azrou (Middle Atlas, Morocco)

2021 ◽  
Vol 13 (20) ◽  
pp. 4087
Author(s):  
Maria Teresa Melis ◽  
Luca Pisani ◽  
Jo De Waele
Keyword(s):  
Remote Sensing ◽  
Satellite Image ◽  
European Space Agency ◽  
Morphometric Study ◽  
Stereo Images ◽  
Space Agency ◽  
Middle Atlas ◽  
Mapping Techniques ◽  
Remote Sensing Techniques ◽  
Basaltic Plateau

Hundreds of large and deep collapse dolines dot the surface of the Quaternary basaltic plateau of Azrou, in the Middle Atlas of Morocco. In the absence of detailed topographic maps, the morphometric study of such a large number of features requires the use of remote sensing techniques. We present the processing, extraction, and validation of depth measurements of 89 dolines using tri-stereo Pleiades images acquired in 2018–2019 (the European Space Agency (ESA) © CNES 2018, distributed by Airbus DS). Satellite image-derived DEMs were field-verified using traditional mapping techniques, which showed a very good agreement between field and remote sensing measures. The high resolution of these tri-stereo images allowed to automatically generate accurate morphometric datasets not only regarding the planimetric parameters of the dolines (diameters, contours, orientation of long axes), but also for what concerns their depth and altimetric profiles. Our study demonstrates the potential of using these types of images on rugged morphologies and for the measurement of steep depressions, where traditional remote sensing techniques may be hindered by shadow zones and blind portions. Tri-stereo images might also be suitable for the measurement of deep and steep depressions (skylights and collapses) on Martian and Lunar lava flows, suitable targets for future planetary cave exploration.

scholarly journals Potential of Multispectral Satellite Data for Superficial Iron Oxide Detection in Sulaimaniyah, Iraqi Kurdistan Region

2021 ◽  
Vol 1 (1) ◽  
pp. 46-57
Author(s):  
Ayad Al-Quraishi ◽  
Banaz Mustafa ◽  
P. Gopinathan ◽  
Divya Yuvaraj
Keyword(s):  
Iron Oxide ◽  
Soil Properties ◽  
Spectral Band ◽  
Satellite Image ◽  
Correlation Coefficients ◽  
Total Iron ◽  
Kurdistan Region ◽  
Remote Sensing Technique ◽  
Iraqi Kurdistan ◽  
Study Results

This study primarily investigates the total (Fe) iron presence in Sulaimaniyah Governorate, the Iraqi Kurdistan Region (IKR), which has an abundance of iron mines. Spatial quantification and frequent monitoring of mineral existence in the soil are essential in the mining regions. To achieve this goal, a remote sensing technique was utilized to predict soil minerals, particularly iron existence in the study area using a multispectral satellite image, Landsat-7 Enhanced Thematic Mapper Plus (ETM+).  A robust methodology was perceived and developed from image processing to estimate and map iron oxides rich soils, and soil’s spectral indices were obtained after algorithms applied in processing on the bands of Landsat image. Soil samples were collected and analyzed in the laboratory to determine the chemical, physical, and mineralogical characteristics of soils. Correlation coefficients were carried out between soil properties and spectral band values retrieved from image analysis to examine the band potentials of Landsat. The statistical results showed that there was a significant relationship between the 3rd band of the ETM+ image and each of the total iron (R2 = 0.643), the free iron oxide (R2 = 0.659), and sand particles (R2 = 0.561). The predicted soil mineral maps were generated for the study area to visualize the study site's soil characterization and total iron spread. This study results could help primarily identify the spatial distribution of some soil properties in Sulaimaniyah, Iraq.

scholarly journals Study on spatial distribution of coral reefs in Nam Yet island by using GIS and remote sensing techniques

2019 ◽  
Vol 19 (3B) ◽  
pp. 177-187
Author(s):  
Nguyen Xuan Tung ◽  
Do Huy Cuong ◽  
Bui Thi Bao Anh ◽  
Nguyen Thi Nhan ◽  
Nguyen The Luan ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Field Survey ◽  
Satellite Image ◽  
Image Interpretation ◽  
Kappa Coefficient ◽  
Distribution Map ◽  
Dead Coral ◽  
Gis And Remote Sensing ◽  
Interpretation Process ◽  
Remote Sensing Techniques

Research and application of GIS and remote sensing techniques combined with field survey in coastal areas of Nam Yet island had been carried out to establish the distribution map of submarine habitats. Depth-invariant index was used to correct water column’s effects on spectral reflectance of each habitat. The results of satellite image classification showed that area with well-developed coral at great depths accounted for 12%, area with well-developed coral at small depths accounted for 9%, area with poorly-developed coral accounted for 13%, dead coral area accounted for 15% and area of sand, grit, pebbles and weathered coral accounted for 51%. The assessment after classification showed that the overall accuracy of the satellite image interpretation process was 94% and the kappa coefficient was 0.93.

scholarly journals Investigation of the Effect of Electromagnetic Radiation on Human Health Using Remote Sensing Technique

2021 ◽  
Vol 11 (1) ◽  
pp. 117-122
Author(s):  
Mohammed Mejbel Salih
Keyword(s):  
Remote Sensing ◽  
Electromagnetic Radiation ◽  
Human Health ◽  
Mobile Phones ◽  
Social Life ◽  
Measuring Device ◽  
Remote Sensing Technique ◽  
Negative Side Effects ◽  
Remote Sensing Techniques ◽  
Effects Of Radiation

In the previous two decades, there has been a rapid and remarkable development in the field of communication technologies to encompass many joints of social life, especially devices for daily use, from mobile phones to laptops, to microwave transmitting and receiving towers, in addition to electromagnetic induction furnaces. This puts us in the fact that we are currently inside a multi-spectrum electromagnetic cloud. In this research, the effect of exposure to electromagnetic radiation and checking the negative side effects on the human body was studied through the use of remote sensing techniques, an electromagnetic radiation intensity measuring device for some devices circulating daily with humans, i.e. mobile phones, to assess the effect of this radiation emitted on human health. The study adopts elementary standards to determine the value of the radioactive energy and its effect on human organs after taking samples from cell phones. In addition, the results show that the effects of radiation depend on depends on the time of exposure.

scholarly journals Research Bathymetry Mapping of Shallow Water Areas around Islands in the Truong Sa Archipelago by Deep - Remote sensing technology

2017 ◽  
Vol 33 (4) ◽  
Author(s):  
Phan Quoc Yen ◽  
Dao Khanh Hoai ◽  
Dinh Thi Bao Hoa
Keyword(s):  
Remote Sensing ◽  
Shallow Water ◽  
Satellite Image ◽  
Image Data ◽  
Landsat 8 ◽  
Military Operations ◽  
Sensing Technology ◽  
Remote Sensing Techniques ◽  
Map Data ◽  
The Military

Satellite image data is being researched and applied effectively in the survey and establishment of bathymetry mapping in shallow water areas in both time and human terms. Remote sensing techniques contribute to rapid updating of topography, timely assurance of civil and military operations such as maritime safety, environmental security and rescue, Warfare in the military, especially the ability to remotely monitor disputed areas. The article experiment with the Stumpf et al algorithm to estimate the shallow water depths on the Spratly Island by Landsat 8 image. The correlation coefficient of the model R2 is 0.924; RMSE is 0.99m. In addition, the results are compared with the map data of C-map and use 12 actual test points scores to evaluate the accuracy of the model.

scholarly journals THE MODELLING STUDY OF AREA MEASUREMENT ACCURACY USING REMOTE SENSING TECHNIQUES

2018 ◽  
Vol 14 (3) ◽  
pp. 25-34
Author(s):  
M A Kupriaynov ◽  
G A Kochergin ◽  
Y M Polishchuk
Keyword(s):  
Remote Sensing ◽  
Spatial Resolution ◽  
Relative Error ◽  
Shape Factor ◽  
Measurement Accuracy ◽  
Satellite Image ◽  
Area Measurement ◽  
Geometric Figures ◽  
Remote Sensing Techniques ◽  
Modelling Study

Based on the simulation, a relationship was established between the spatial resolution of the satellite image and the relative error in determining the area of the object being measured. The formula is proposed for calculating the relative error of measuring the area of an object using remote sensing techniques. A method for constructing random flat geometric figures with a given shape factor is proposed.

scholarly journals Synthesizing multiple remote-sensing techniques for subglacial hydrologic mapping: application to a lake system beneath MacAyeal Ice Stream, West Antarctica

2010 ◽  
Vol 56 (196) ◽  
pp. 187-199 ◽  
Author(s):  
Helen Amanda Fricker ◽  
Ted Scambos ◽  
Sasha Carter ◽  
Curt Davis ◽  
Terry Haran ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Water Movement ◽  
Satellite Image ◽  
West Antarctica ◽  
Basal Resistance ◽  
Ice Stream ◽  
Radio Echo Sounding ◽  
Satellite Radar ◽  
Remote Sensing Techniques ◽  
Subglacial Lakes

AbstractWe present an analysis of the active hydrologic system of MacAyeal Ice Stream (MacIS), West Antarctica, from a synthesis of multiple remote-sensing techniques: satellite laser altimetry; satellite image differencing; and hydrologic potential mapping (using a satellite-derived DEM and a bedrock DEM from airborne radio-echo sounding). Combining these techniques augments the information provided by each one individually, and allows us to develop a protocol for studying subglacial hydrologic systems in a holistic manner. Our study reveals five large active subglacial lakes under MacIS, the largest of which undergoes volume changes of at least 1.0 km3. We discuss the hydrologic properties of this system and present evidence for links between the lakes. At least three of the lakes are co-located with sticky spots, i.e. regions of high local basal shear stress. We also find evidence for surface elevation changes due to ice-dynamic effects (not just water movement) caused by changes in basal resistance. Lastly, we show that satellite radar altimetry is of limited use for monitoring lake activity on fast-flowing ice streams with surfaces that undulate on ∼10 km length scales.

scholarly journals COUPLING ANALYSIS OF HEAT ISLAND EFFECTS, VEGETATION COVERAGE AND URBAN FLOOD IN WUHAN

2018 ◽  
Vol XLII-3 ◽  
pp. 1173-1177
Author(s):  
Y. Liu ◽  
Q. Liu ◽  
W. Fan ◽  
G. Wang
Keyword(s):  
Remote Sensing ◽  
Urban Heat Island ◽  
Satellite Image ◽  
Vegetation Coverage ◽  
Heat Island ◽  
Visual Interpretation ◽  
Urban Flood ◽  
Remote Sensing Technique ◽  
Island Effect ◽  
Urban Heat

In this paper, satellite image, remote sensing technique and geographic information system technique are main technical bases. Spectral and other factors comprehensive analysis and visual interpretation are main methods. We use GF-1 and Landsat8 remote sensing satellite image of Wuhan as data source, and from which we extract vegetation distribution, urban heat island relative intensity distribution map and urban flood submergence range. Based on the extracted information, through spatial analysis and regression analysis, we find correlations among heat island effect, vegetation coverage and urban flood. The results show that there is a high degree of overlap between of urban heat island and urban flood. The area of urban heat island has buildings with little vegetation cover, which may be one of the reasons for the local heavy rainstorms. Furthermore, the urban heat island has a negative correlation with vegetation coverage, and the heat island effect can be alleviated by the vegetation to a certain extent. So it is easy to understand that the new industrial zones and commercial areas which under constructions distribute in the city, these land surfaces becoming bare or have low vegetation coverage, can form new heat islands easily.

scholarly journals REMOTE SENSING TECHNOLOGIES FOR LINEAR INFRASTRUCTURE MONITORING

2019 ◽  
Vol XLII-2/W11 ◽  
pp. 461-468 ◽  
Author(s):  
P. D’Aranno ◽  
A. Di Benedetto ◽  
M. Fiani ◽  
M. Marsella
Keyword(s):  
Remote Sensing ◽  
Structural Characteristics ◽  
Methodological Approach ◽  
Laser Scanner ◽  
3D Models ◽  
Remote Sensing Technique ◽  
Safety Condition ◽  
Dense Point ◽  
Remote Sensing Techniques ◽  
Monitoring Technologies

<p><strong>Abstract.</strong> The need for a continuous evaluation of the state of preservation of civil infrastructures during their lifetime is increasingly requiring advanced monitoring technologies. The improvement of spatial and temporal resolution of the measurements is now one of the most significant achievement, especially for large infrastructures. Monitoring actions are necessary to maintain safety conditions by controlling the evolution of deformation patterns or detecting significant instabilities. Remote sensing technique such as Differential Interferometry by Synthetic Aperture Radar (DInSAR) allows identifying environmental vulnerability and potential damages on large road infrastructures thus contributing to plan and optimize maintenance actions. DInSAR data allow to highlight instability processes and to quantify mean deformation velocities and displacement time series. This information can be analysed considering geotechnical and structural characteristics and adopted to evaluate possible safety condition improvement and damage mitigation. Using proximal remote sensing techniques, such as Light Detection And Ranging (LiDAR), it is possible to analyse the pavement conditions on 3D models derived from a dense point cloud acquired by Mobile Laser Scanner (MLS). By combining the DInSAR and LiDAR datasets a great improvement is expected in the capability to promptly identifying critical situations and understanding potential risks affecting extended road infrastructures. The principal aim of this paper is to provide a general overview of the most innovative remote sensing techniques for infrastructure safety condition assessments. Furthermore, a methodological approach to define a reliable procedure for data processing and integration is applied on a test area located in the municipality of Rome.</p>

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