Journal of Applied Geospatial Information <p>Journal of Applied Geospatial Information (JAGI) is a national&nbsp;and international peer review journal published by Politeknik Negeri Batam.&nbsp;The JAGI&nbsp;is issued 2&nbsp;times a year in electronic form, publishes Original Research Articles (full papers and short communications) and Review (full and mini-reviews) in all aspects of result research in the field of science/engineering: terrestrial and marine (geomatics, geophysics, geography, geology, geographic information systems, remote sensing, cartography, oceanography, hydrography, marine science and technology).&nbsp;We encourage all interested contributors to submit their work for consideration.&nbsp;<a href=";1488529534&amp;1&amp;&amp;">e-ISSN (Online):&nbsp;2579-3608 </a>; <a href=";container-title=Journal+of+Applied+Geospatial+Information">DOI:&nbsp;10.30871/jagi</a></p> Politeknik Negeri Batam en-US Journal of Applied Geospatial Information 2579-3608 <p>Copyright @2020. This is an open-access article distributed under the terms of the Creative Commons&nbsp;Attribution-ShareAlike 4.0 International License which permits unrestricted use, distribution, and reproduction in any medium.&nbsp;Copyrights of all materials published in&nbsp;JAGI are freely available without charge to users or / institution. Users are allowed to read, download, copy, distribute, search, or link to&nbsp;full-text&nbsp;articles in this journal without asking&nbsp;by giving&nbsp;appropriate credit, provide a link to the license, and&nbsp;indicate if changes were made. All of the&nbsp;remix, transform, or build upon the material must distribute the contributions under the&nbsp;same license&nbsp;as the original.&nbsp;</p> Spatiotemporal Analysis of Potential Impact of Soil Erosion on Maize and Groundnuts Yield in Northern Ghana <p><strong>Abstract</strong></p> <p>Soil erosion is a threat to the viability of arable land, which has a relationship with crop productivity. This study was carried out in the Northern, North-East and Savannah Regions of Ghana, which have a high agricultural potential. The study examined erosion-yield relationship by comparing estimated erosion rates with maize and groundnut yields in a GIS environment. The study also projected soil erosion and determined its potential effect on the yield of maize and groundnuts. The soil erosion rates were found to be 4.2 t ha-1y-1, 5.1 t ha-1y-1 and 7.1 t ha-1y-1 for the Northern, North-East and Savannah Regions respectively.</p> <p>Projections for the next 10 years showed that, soil erosion will averagely increase by about 12 %, which could reduce the yield of maize and groundnut by 21 % and 16 % respectively by the year 2031, should the current trend continue. The study also found out that crop (maize and groundnut) yield per land area is relatively lower in areas severely affected by soil erosion. Farmers in the study area and areas of similar ecology must be encouraged to adopt Soil and Water Conservation (SWC) strategies to enhance and sustain productivity.</p> Wilson Agyei Agyare Eliasu Salifu ##submission.copyrightStatement## 2021-09-06 2021-09-06 5 2 486 493 10.30871/jagi.v5i2.3271 Tides Measurement and Tidal Analysis at Jakarta Bay <p>Tides observation conducted for these purposes such as real-time depth of water, determination mean sea level and other tidal datums to establish a system of tidal benchmarks and data for production of tide and tidal current predictions. Center for Marine and Coastal Mapping – Geospatial Information System used water level and tides data mainly to correct the water depth measurement to chart datum. This study uses sea level observation data conducted from 20th February 2018 until 4th April 2018 at Marina Batavia, Jakarta. This study found that tidal types at this location is mixed diurnal using formzahl number. Astronomical and shallow water possible constituent were derived from the harmonic analysis. Fourier analysis gives clearly visual interpretation in frequency perspective. Several constituents inseparable because of short duration records.</p> Hollanda Arief Kusuma Muhammad Zainuddin Lubis Nadya Oktaviani Dwi Eny Djoko Setyono ##submission.copyrightStatement## 2021-09-06 2021-09-06 5 2 494 501 10.30871/jagi.v5i2.2779 WorldView-2 Satellite Image Classification using U-Net Deep Learning Model <p>Land cover maps are important documents for local governments to perform urban planning and management. A field survey using measuring instruments can produce an accurate land cover map. However, this method is time-consuming, expensive, and labor-intensive. A number of researchers have proposed using remote sensing, which generates land cover maps using an optical satellite image with various statistical classification procedures. Recently, artificial intelligence (AI) technology, such as deep learning, has been used in multiple fields, including satellite image classification, with satisfactory results. In this study, a WorldView-2 image of Terangun in Aceh Province, which was acquired on Aug 2, 2016, was classified using a commonly used deep-learning-based classification, namely, U-net. There were eight classes used in the experiment: building, road, open land (such as green open space, bare land, grass, or low vegetation), river, farm, field, aquaculture pond, and garden. For comparison, three classification methods: maximum-likelihood, random forest, and support vector machine, were performed compared to U-Net. A land cover map provided by the government was used as a reference to evaluate the accuracy of land cover maps generated using two classification methods. The results with 100 randomly selected pixels revealed that U-Net was able to obtain a 72% and 0.585 for overall and kappa accuracy, respectively; whereas, overall accuracy and kappa accuracy for the maximum likelihood, random forest and support vector machine methods were&nbsp; 49% and 0.148; 59% and 0.392; and 67% and 0. 511; respectively. Therefore, U-Net outperformed those three of classification methods in classifying the image.</p> <p><strong>&nbsp;</strong></p> Ilyas Ilyas Lalu Muhamad Jaelani Muhammad Aldila Syariz Husnul Hidayat ##submission.copyrightStatement## 2021-09-08 2021-09-08 5 2 502 509 10.30871/jagi.v5i2.3150 Automatic Extraction Of Interior Orientation Data In Aerial Photography Using Image Matching Method <p>The Interior Orientation is a set of parameters that have been determined to transform the coordinates of the camera photo, that is the coordinates of the pixel leading to the coordinates of the image. This parameter is used to calibrate the camera before use so as to produce a precise measurement from an aerial photograph. This orientation parameter consists of a calibrated and equivalent camera focal length, lens distortion, principal point, fiducial mark location, camera resolution, and flatness of the focal plane. All of these parameters are attached to or contained on the camera sensor and the values of these parameters can usually be known from the camera's report page. In this work, the author wants to obtain pixel coordinates from the Fiducial Mark in the base image (Window Search) automatically, therefore a Fiducial Mark template was created which is formed from a piece of a photo image frame to determine the Fiducial Mark coordinate values from the base image ( Window Search), the basis of this programming is to use the concept of photogrammetry, which uses Image Matching techniques. The Image Matching process was developed from the C ++ Language programming algorithm platform, this was done in order to speed up computational results. There are a number of techniques for doing Image Matching, in this study the authors conducted using the Normalized Cross-Correlation Image Matching. In statistics Normalized Cross-Correlation is between two random variables by determining the size of how closely the two variables are different simultaneously. Similarly, Normalized Cross-Correlation in Image Matching is a measurement by calculating the degree of similarity between two images. This level of similarity is determined by Normalized Cross-Correlation (NCC). The Least Square Image Matching method is used to increase the accuracy of the coordinates of the conjugation points.</p> Helmy Mukti Wijaya Teguh Hariyanto Hepi Hapsari Handayani ##submission.copyrightStatement## 2021-09-09 2021-09-09 5 2 510 514 10.30871/jagi.v5i2.2115 Analysis And Prevention of Pb Metal Content Suspended In Belawan Waters <p>The study of Pb in suspended solid and dissolved in the Belawan Port Waters was conducted on June until November 2021. Analysis of Pb content in suspended solid was mesured at Laboratory of Environmental Health and Disease Control Engineering Center (BTKLPP) in North Sumatra Province. Pb content in suspended solid at high tide ranged from &lt;0,02-0,06 mg/l and at low tide ranged from 0,02-0,065 mg/l. The content of dissolved Pb at high tide ranged from 0,210-0,651 mg/l and at low tide ranged from 0,288-0,750 mg/l. Content of Pb in the waters of Belawan Port has passed quality standard of the Minister of&nbsp; Environment of Republic Indonesia that means the Harbour area is polluted and improper for drinking water as well as for fish cultivation.</p> Mardame Pangihutan Sinaga Ady Frenly Simanullang ##submission.copyrightStatement## 2021-10-01 2021-10-01 5 2 515 519 10.30871/jagi.v5i2.3410 Combination of Terrestrial Laser Scanner and Unmanned Aerial Vehicle Technology in The Manufacture of Building Information Model <p>The rapid development of the construction world in Indonesia has led to an increase in supporting technology that is more effective and efficient. The Building Information Model (BIM) technology that begins with the creation of an as-built 3D model, this model describes the existing condition of the building. The Terrestrial Laser Scanner (TLS) method can provide a point cloud with a decent point density, but there are still areas of the building that aren't covered, such as the roof. To be more complete and detailed, additional data is needed using an Unmanned Aerial Vehicle (UAV). The results of the combination of TLS and UAV complement each other so that the results of the point cloud can form more detailed buildings. BIM may be built by combining these two data sets, allowing for the three-dimensional depiction of assets in buildings. The registration results for TLS point cloud data have a fairly good value where the overlap value is 44.9% (minimum 30%), balance is 41.2% (minimum 20%), points &lt; 6mm is 98.9% (minimum 90%). The measurement results using the UAV have an RMSE GCP value of 0.266m and an RMSE ICP of 0.455m. Merging the results of TLS and UAV measurements is done using 3DReshaper software with four align points. The final result of making the BIM model is obtained level of detail (LOD) 3 where room models such as columns, floors, stairs, and walls are well depicted, while asset models such as furniture are also depicted although they are still simple objects.</p> Sawitri Subiyanto Nurhadi Bashit Naftalie Dinda Rianty Aulia Darmaputri Savitri ##submission.copyrightStatement## 2021-10-29 2021-10-29 5 2 520 525 10.30871/jagi.v5i2.3444 Application of Sustainable City Logistics in Saudi Arabia <p>The kingdom of Saudi Arabia has advantages in trade and logistics services that other countries do not have. By 2020 there was a significant increase in logistics market revenue with reach almost SAR 94 billion (USD $ 25 billion), which, in this case, opens up opportunities for FDI (Foreign Direct Investment) that must be exploited. Components and logistics services are a series of activities planning, organizing, and controlling all activities in the flow of materials, from raw materials to final consumption and the return flow of manufactured products, with the aim of satisfying the needs and desires of customers and other interested parties. city. Therefore, the sustainability of city logistics requires synergy between policy makers (government) and also the community (public) with the private sector (private) with steps such as simplification of regulations, provision of urban infrastructure, low carbon emissions in transportation means of delivery of logistics services, network governance. modern traffic so that this public-private partnership is the key to the effectiveness and efficiency of a sustainable urban logistics chain.</p> Bader Alanazi Jamal Eid Abdulaal Herika Muhamad Taki ##submission.copyrightStatement## 2021-11-22 2021-11-22 5 2 526 531 10.30871/jagi.v5i2.3525 Development of A Geographic Information System for The Distribution of Parks in Kediri City <p>The Department of Environment, Hygiene, and Parks is an agency that takes care of cleanliness and landscaping in Kediri. The distribution of parks in the Kediri City area is data and managed using a manual system using Microsoft Excel to get results in reports. For this reason, the Department of Environment, Cleanliness, and Parks requires an application that can be used to help manage data on the distribution of parks in the Kediri City area. The required system can manage park distribution data, display a park distribution map, and display the scale of conditions. The Geographic Information System for the Distribution of Parks in the City of Kediri was designed and built to meet the needs of the relevant agencies. Users of this system consist of visitors, admins, and heads of services. The system is designed and implemented using PHP, HTML, CSS, JavaScript, Mysql, and Laravel Framework, then integration with Google Maps API. The final result of this research is a Geographic Information System for the distribution of web-based parks in the City of Kediri using the Google map API as a provider of free maps that are integrated into the website. In addition, of course, it provides information about the distribution of the park and the scale of conditions.</p> Toga Aldila Cinderatama Trisha Alfandi Ashafidz Fauzan Dianta Rinanza Zulmy Alhamri Hamdani Arif Yoppy Yunhasnawa ##submission.copyrightStatement## 2021-11-22 2021-11-22 5 2 532 538 10.30871/jagi.v5i2.3308 Identification of Subsurface Rock Structure of Non-Volcanic Geothermal Systems Based on Gravity Anomalies (Terak Village, Central Bangka Regency) <p>Abstract</p> <p>&nbsp;</p> <p>Geothermal manifestations on Bangka Island are found in the villages of Terak, Pemali, Sungailiat/Pelawan, Dendang, Permis, and Nyelanding. The manifestation of hot water in Terak Village, Central Bangka Regency is in the form of 3 hot springs with a surface temperature of 55ᵒC this research is to be carried focus on the structure of the subsurface rock layers using the geophysical method, namely the gravity method. The data used are topography and Free Air Anomaly. The data processing is in the form of Bouguer Correction and Terrain Correction to obtain the Complete Bouguer Anomaly (CBA) value. Then the CBA value is separated from regional anomalies and residual anomalies using the upward continuation method, as well as 2D modeling interpretation (forward modeling). From the research results, it is known that the subsurface rock structure of the non-volcanic geothermal system in Terak Village in the form of sandstone (2.28 – 2.49 gr/cm<sup>3</sup>) at a depth of 0 – 1.44 km is estimated as caprock, granite (2.77 – 2.78 gr/cm<sup>3</sup>) at a depth of 0 – 1.8 km is estimated as reservoir rock, and diorite rock (2.87 – 2.99 gr/ cm<sup>3</sup>) at a depth of 0 – 2 km is estimated as basement rock.</p> <p>&nbsp;</p> <p>&nbsp;</p> Reza Firdaus Siska Oktaviyani Putri Hardianti Tri Kusmita Anisa Indriawati ##submission.copyrightStatement## 2021-12-01 2021-12-01 5 2 539 543 10.30871/jagi.v5i2.3640