Image processing of alos palsar satellite data, small unmanned aerial vehicle (UAV), and field measurement of land deformation

Abstract

Pekanbaru, Indonesia is connected by four big bridges, Siak Bridge; I, II, III and IV. The quality of the Siak bridges deteriorated seriously at this time. Geological mapping for the land subsidence potency was conducted using small Unmanned Aerial Vehicle (UAV) in the Siak Bridge areas. The study of the Siak bridges are supported by the Differential Interferometric Synthetic Aperture Radar (DInSAR) analysis using ALOS PALSAR satellite data, and the deflection observation that occurs in Siak III Bridge was observed by field measurement. The results of 3D model analysis showed that there is no negative land deformation. DInSAR analysis shows the amount of positive deformation of Siak I is 81 cm, Siak II is 48 cm, Siak III is 89 cm, and Siak IV is 92. Deflection on Siak III Bridge was detected at around 25-26 cm. These models could be used as a new way of measuring the bridge deformation on a big scale.

Landslide Vulnerability Identification Based on the Geological Condition, GIS Calculation, and Field Validation in the Tropical Area

“…The research method is carried out by determining the zoning by giving a weighting score. Furthermore, the geographical information system (GIS) method is used to classify the factors causing landslides [24][25][26][27][28][29][30] and classify the landslide vulnerability zone [31][32][33][34][35][36][37] . The factors used to classify the area's vulnerability to landslides are slope, lithology, land wetness, relative relief, land cover, and rainfall as supporting data in the study.…”

Public Transport Performance Based on the Potential Demand and Service Area (Case Study : Jakarta Public Transport)

“…Previously research stated that performance of pubic transport by spatial analysis could be done with GIS Software (Currie, et. al, 2009;Kausarian, et. al, 2018 ).…”

Smart Monitoring Agriculture Based on Internet of Things

“…Furthermore, determine the material requirements in terms of hardware, software and data communication. After all, materials are available, a prototype is made according to the design and must be evaluated directly by the farmer so that if there is an evaluation the repair process will be carried out then a trial is carried out until then agreed by the farmer, that tool is in accordance with their needs [7] [11].…”

“…The use of technology is one of the conditions for making agriculture better because the data needed can be produced more so that the analysis will be better and more valid. The use of technology in agriculture has so far been limited to the tools used in processing the land or processing crops, and is still very limited in producing data on the cropping process until there is harvest [6] [7]. According to the data obtained by the researchers, there are still many farmers who use traditional methods in analyzing the planting process so that the analysis is still the same as previous farming methods.…”