检索结果-内蒙古大学图书馆

Performance of GNSS positioning in PPP mode using MADOCA precise products

geodesy and Geodynamics 2024年第6期15卷 642-651页

作者： Brian Bramanto Rachel Theresia Irwan Gumilar Sidik T.Wibowo Geodetic Science Engineeringand Innovation Research GroupFaculty of Earth Sciences and TechnologyInstitut Teknologi BandungBandung 40135Indonesia Geodesy and Geomatics Engineering Study Program Faculty of Earth Sciences and TechnologyInstitut Teknologi BandungBandung 40135Indonesia Geodetic and Geodynamic Control Network Center Geospatial Information Agency of Indonesia(BIG)Cibinong 16911Indonesia

The Global Navigation Satellite System (GNSS) is widely utilized for accurate *** commonly applied method to obtain precise coordinate estimates is by implementing the relative positioning in network ***,this approach can be complex and ***,The Japan Aerospace Exploration Agency (JAXA) offers freely available satellite orbit and clock correction products called Multi-GNSS Advanced Demonstration Tool for Orbit and Clock Analysis (MADOCA),which can enhance positioning accuracy through the precise point positioning (PPP) *** study focuses on evaluating PPP static mode positioning using MADOCA products and comparing the results with the highly precise relative positioning *** analyzing a network of 20 GNSS stations in Indonesia,we found that the PPP method using MADOCA products provided favorable positioning *** median discrepancies and the corresponding median absolute deviation (MAD) for easting,northing,and up components were estimated as 9±18 mm,10±9 mm,and 3±40 mm,*** results indicate that PPP with MADOCA products can be a reliable alternative for establishing Indonesia's horizontal control networks,particularly for orders 0,1,2,and 3,and for a broad spectrum of geoscience monitoring ***,considerations such as epoch transformations and seismic activities should be taken into account for accurate positioning applications that comply with the definition of the national reference framework.

关键词： Global Navigation Satellite System(GNSS) Precise point positioning(PPP) MADOCA Positioning evaluation

来源：评论

学校读者我要写书评

暂无评论

Identification of the impacts of coastline dynamics on the Indonesian maritime zones

引用

Australian Journal of Maritime and Ocean Affairs 2023年第3期15卷 296-314页

作者： Djunarsjah, Eka Rahma, Aulia Yudistira, Kevin Ihsan, Ihsan Putra, Andika Permadi Chairuniza, Gistya Julian, Miga Magenika Hydrography Research Group Bandung Institute of Technology Bandung Indonesia Study Program of Geodesy and Geomatics Engineering Bandung Institute of Technology Bandung Indonesia Institute of Geography Friedrich-Schiller University of Jena Jena Geoinformatics Germany

The maritime zones of a state are influenced by the position of the baselines used. The position of the baseline will change along with coastline dynamics. Few causes of coastline dynamics are accretion and abrasion. The inventory method was used to gather findings in the shape of incongruencies on the Indonesian Nautical Chart. Comparative analyses were carried out using the Indonesian baseline map. The abrasion and accretion rate calculation using a Digital Shoreline Analysis System (DSAS) based on Otsu Thresholding was carried out on each incongruencies study area Siberut Island, Wunga Island, and South Kuta Regency. The case study results showed the coastal dynamics rate in Siberut Island of 7.41 metres/year, Wunga Island 12.08 metres/year, and South Kuta Regency 0.91 metres/year. This phenomenon caused changes in the maritime zone on Siberut Island to decrease by 15.78 km², Wunga Island to increase by 23.04 km², and South Kuta Regency to increase by 0.07 km². The implication of the baseline incongruencies can affect the changes of Indonesia's maritime zones, becoming wider or smaller. It is suggested that basepoints and baselines in the unilateral maritime zones be maintained and updated regularly to match the actual conditions that can shift due to coastline dynamics. © 2022 Informa UK Limited, trading as Taylor & Francis Group.

关键词： baseline basepoint coastline dynamics Maritime zones

来源：评论

学校读者我要写书评

暂无评论

Identification of the IOC-UNESCO Tsunami Ready Indicator to Improve Coastal Community Preparedness for Tsunami Disaster in Batukaras Village, Pangandaran Regency, Indonesia 5

Identification of the IOC-UNESCO Tsunami Ready Indicator to ...

引用

5th IEEE Asia-Pacific Conference on Geoscience, Electronics and Remote Sensing Technology, AGERS 2022

作者： Mustafida, Rika Prillya Veronica, Nikita Karima, Aufa Qoulan De Silva Nusantara, Candida Aulia Windupranata, Wiwin Institut Teknologi Bandung Master Program of Geodesy and Geomatics Engineering Bandung Indonesia Institut Teknologi Bandung Study Program of Geodesy and Geomatics Engineering Bandung Indonesia Institut Teknologi Bandung Nusantara Research Group of Hydrography Bandung Indonesia Research Group of Hydrography Institut Teknologi Bandung Bandung Indonesia

ISBN: (纸本)9798350398212

Batukaras Village is a village located in Cijulang District, in the southern part of Pangandaran Regency, West Java. Batukaras is one of the tourist destinations that have the potential to be visited by the tourist because of its beautiful view and potential economic income from the fishery. Beyond the potential for natural beauty, Batukaras Village also has the potential for disaster. One of them is the tsunami caused by the earthquake, with a magnitude of 7.7 in 2006. The Pangandaran tsunami on July 17 became a memorable disaster for the local community. It reached a height of 21 meters. It has left more than 300 people dead, 301 seriously injured, 551 slightly injured, and 156 missing, accompanied by huge property losses. Batukaras Village community has implemented 12 tsunami ready indicators IOC-UNESCO. Therefore, this study aims to map 12 tsunami ready IOC-UNESCO indicators in Batukaras Village to evaluate which indicators the government and community of Batukaras Village. The field survey and interviews are done to obtain data to identify the 12 tsunami ready indicators in Batukaras Village. Based on the IOC-UNESCO tsunami indicator mapping results, Batukaras Village has fulfilled 11 of the 12 indicators set. Based on the identification result, the village government has not yet fulfilled indicator five. Therefore the ITB Research and Community Service Institute (LPPM) team assisted in making an evacuation route map to fulfill these indicators. However, in the future, the Batukaras Village government, assisted by the entire community, can be committed to maintaining and improving all existing disaster preparedness assets. © 2022 IEEE.

关键词： Tsunamis

来源：评论

学校读者我要写书评

暂无评论

Identification of the IOC-UNESCO Tsunami Ready Indicator to Improve Coastal Community Preparedness for Tsunami Disaster in Batukaras Village, Pangandaran Regency, Indonesia

Identification of the IOC-UNESCO Tsunami Ready Indicator to ...

引用

IEEE Asia-Pacific Conference on Geoscience, Electronics and Remote Sensing Technology (AGERS)

作者： Rika Prillya Mustafida Nikita Veronica Aufa Qoulan Karima Candida Aulia de Silva Nusantara Wiwin Windupranata Master Program of Geodesy and Geomatics Engineering Institut Teknologi Bandung Bandung Indonesia Study Program of Geodesy and Geomatics Engineering Institut Teknologi Bandung Bandung Indonesia Research Group of Hydrography Institut Teknologi Bandung Bandung Indonesia

关键词： Meters Economics Java Government Earthquakes Sea measurements Tsunami

来源：评论

学校读者我要写书评

暂无评论

Integration of Satellite-Derived Bathymetry and Sounding Data in Providing Continuous and Detailed Bathymetric Information 2

Integration of Satellite-Derived Bathymetry and Sounding Dat...

引用

2nd Maritime Science and Advanced Technology: Marine Science and Technology in Framework of The Sustainable Development Goals, MSAT 2019

作者： Hashim, Nur Syahirah Yusof, Othman Mohd Windupranata, Wiwin Sulaiman, Saiful Aman Hj. Centre of Studies for Surveying Science and Geomatics UiTM Shah Alam Malaysia Geodesy and Geomatics Engineering Study Program Faculty of Earth Science and Technology Institute Technology of Bandung Indonesia

A hydrographic survey can be a cumbersome sometimes. The data can be sparse, providing it can be costly, and it took a lot of manpower and time. Space-borne data like multispectral images can be a helpful tool towards hydrographic survey, especially in the shallow water area. The company like EOMAP and TCARTA make use of Satellite-Derived Bathymetry (SDB) as a tool and product. Would it be great if it also can be applied in Malaysia, especially on the low-risk job or survey planning? Enlarging the survey area and providing a continuous and detailed water depth information is the main objective in this research. In order to complement with convenience and cost reduction, the author used Landsat 8 "(free downloadable images)"in this research. Structuring the procedure is the central part of the process involving pre-processing and processing step until the final product obtained. In this research, the author used various kind of bathymetry algorithms such as Single-Band Algorithm (SBA), Green-Band Algorithm (GBA), and Stumpf. Moreover, the author also uses Principal Component Analysis (PCA) tool from ArcMap and Spear Relative Water Depth: Log-Ratio Transform tool from ENVI to derived bathymetry. All of this bathymetry algorithm gives out a different concept with a different statistical approach. The final result then will be compared and evaluated with Single-Beam Echosounder data (ground truth). © Published under licence by IOP Publishing Ltd.

关键词： Satellites

来源：评论

学校读者我要写书评

暂无评论

A Cluster-Based Method for Improving Water Depth Estimation from Satellite Derived Bathymetry

A Cluster-Based Method for Improving Water Depth Estimation ...

引用

2020 International Conference on Data Science and Its Applications, ICoDSA 2020

作者： Meliala, Litany Juliansah, Tabah Adytia, Didit Sidiq, Teguh Purnama Windupranata, Wiwin Poerbandono Institut Teknologi Bandung Geodesy and Geomatics Engineering Study Program Bandung Indonesia Telkom University School of Computing Bandung Indonesia Institut Teknologi Bandung Geodesy Research Group Faculty of Earth Sciences and Technology Bandung Indonesia Institut Teknologi Bandung Hydrography Research Group Faculty of Earth Sciences and Technology Bandung Indonesia

ISBN: (纸本)9781728182353

In this presented paper, an effort to improve the accuracy of the bathymetric model derived from optical satellite imagery is discussed. According to the previous study, the accuracy approximately measures in 2 m for depth up to 10 m by means of the Global Bathymetric Inversion Methods. Therefore, the improvement is done based on the so-called Cluster-Based Method applied to the analytical and log-ratio methods. The Cluster-Based Method partitions the working area on the by classifying the errors between the known depths and the predicted ones. The data for the known and predicted depths are acquired from the in-situ survey and the Sentinel-2 imagery. Improvement by one-third to the accuracy of the resulting bathymetry is obtained. © 2020 IEEE.

关键词： Bathymetry

来源：评论

学校读者我要写书评

暂无评论

Analysis of tsunami hazard in the Southern Coast of West Java Province - Indonesia 2

Analysis of tsunami hazard in the Southern Coast of West Jav...

引用

2nd Maritime Science and Advanced Technology: Marine Science and Technology in Framework of The Sustainable Development Goals, MSAT 2019

作者： Windupranata, W. Hanifa, N.R. Nusantara, C.A.D.S. Aristawati, G. Arifianto, M.R. Research Group of Coastal Ocean and Maritime Engineering Faculty of Earth Sciences and Technology Institut Teknologi Bandung Indonesia Centre for Earthquake Science and Technology Research Centre for Disaster Mitigation Institut Teknologi Bandung Indonesia Research Laboratory of Hydrography Faculty of Earth Sciences and Technology Institut Teknologi Bandung Indonesia Study Program of Geodesy and Geomatics Engineering Faculty of Earth Sciences and Technology Institut Teknologi Bandung Indonesia

The Southern Coast of West Java Province in the Java Islands is one of prone and exposed area to tsunami hazard. It has about 428 kilometers coastline length, covering 5 administrational regencies (i.e. Sukabumi, Cianjur, Garut, Tasikmalaya, and Pangandaran). It is a strategic area that support many economic activities including tourism, fisheries, electricity power plants, agricultures, markets as well as social factors such as coastal villages, schools and other public facilities. The existence of this strategic area is threatened by the potential for a tsunami disaster mainly from megathrust along the Southern Coast of Java Island. On 2006, a tsunami earthquake of M7.7 occurred off Pangandaran Regency with tsunami height of 5-8 meters and inundated about 500 meters along southern coast of West and Central Java Province. The tsunami caused more than 600 casualties and damage to buildings, public facilities and insfrastructure. Yet, the Indonesia National Earthquake Source and Hazard Map suggest a bigger threat of a plausible M8.7 - M9.2 megathrust earthquake off Java island. This research aims to analyze and map potential areas affected by the tsunami in the South Coast of West Java Province based on numerical modelling carried out with Cornell Multi-grid Coupled Tsunami Model (COMCOT) v1.7 based on the several megathrust earthquake scenarios in southern off West Java. The results of tsunami modelling show that the highest impact is generated in the Sunda Straits & West Java - Central Java Megathrust Scenarios with highest tsunami inundation and the fastest travel time occurred in Cianjur Regency with 26,7 meters height and estimated arrival time of tsunami wave approximately 10 minutes after the mainshock, while the farthest inundation distance is estimated in Sukabumi Regency about 5.8 kilometers from the coast due to existence of river. © Published under licence by IOP Publishing Ltd.

关键词： Hazards

来源：评论

学校读者我要写书评

暂无评论

Shallow-Water Bathymetry Estimation Using Single Band Algorithm and Green Band Algorithm

Shallow-Water Bathymetry Estimation Using Single Band Algori...

引用

IEEE Control and System Graduate Research Colloquium (ICSGRC)

作者： Nur Syahirah Hashim Wiwin Windupranata Saiful Aman Hj. Sulaiman Centre of Studies for Surveying Science and Geomatics Universiti Teknologi MARA Shah Alam Selangor MALAYSIA Geodesy and Geomatics Engineering Study Program Faculty of Earth Science and Technology Institute Technology of Bandung Indonesia Malaysia Institute of Transport (MITRANS) Universiti Teknologi MARA Shah Alam Selangor MALAYSIA

ISBN: (数字)9781728153131

ISBN: (纸本)9781728153148

The provision of more comprehensive bathymetric data, for not just apply to the modern marine application but also the development of national data infrastructure. This demand has created a series of development in bathymetric data acquisition throughout the year from the lead line, ship-borne sounding, to air-borne Lidar. However, it has pros and cons in each bathymetric data acquisition related to cost, time, manpower and accessibility. The integration idea drives from the successful of Satellite-Derived Bathymetry technique in solving the problem, moreover, this the way to achieve the data with a uniform resolution in acceptable time and cost. Therefore, this study conducted to generate bathymetric mapping at '`Pantai Tok Jembal'' using Single Band Algorithm (SBA) for two visible bands (Blue and Green) and Green Band Algorithm (GBA). Two comparative analysis conducted in this study first is between SBA-Blue and SBA-Green to evaluate the ability of each band to estimate bathymetry at '`Pantai Tok Jembal'' shallow-coastal water area and while second is between SBA-Green and GBA method to evaluate the ability of each statistical approach in computing absolute water depth. Further, the result evaluated using SBES ground truth data. The root mean square error (RMSE) and R-squared (R 2 ) computed between Single Beam Echo Sounding (SBES) data and Satellite-Derived Bathymetry (SBA and GBA), and the result shows that SBA-Green stand out in both analysis; moreover, this study successfully produces 49.69 km 2 area (Extended Area) bathymetric mapping at '`Pantai Tok Jembal'', Terengganu, Malaysia. However, to support marine application and national data infrastructure, it requires more comprehensive bathymetric data which is giving high in accuracy and reliability, further research needs to undertake to fulfil this support.

关键词： Reflectivity Remote sensing Earth Calibration Artificial satellites Meters Sea measurements

来源：评论

学校读者我要写书评

暂无评论

A Cluster-Based Method for Improving Water Depth Estimation from Satellite Derived Bathymetry

A Cluster-Based Method for Improving Water Depth Estimation ...

引用

Data Science and Its Applications (ICoDSA), International Conference on

作者： Litany Meliala Tabah Juliansah Didit Adytia Teguh Purnama Sidiq Wiwin Windupranata Poerbandono Geodesy and Geomatics Engineering Study Program Institut Teknologi Bandung Bandung Indonesia School of Computing Telkom University Bandung Indonesia Geodesy Research Group Faculty of Earth Sciences and Technology Institut Teknologi Bandung Bandung Indonesia Hydrography Research Group Faculty of Earth Sciences and Technology Institut Teknologi Bandung Bandung Indonesia

ISBN: (数字)9781728182353

ISBN: (纸本)9781728182360

关键词： Satellites Estimation Clustering algorithms Correlation Remote sensing geodesy Optical imaging

来源：评论

学校读者我要写书评

暂无评论

Shallow-Water Bathymetry Estimation at Pantai Tok Jembal, Terengganu, Malaysia Using Landsat 8 (OLI)

引用

IOP Conference Series: Earth and Environmental Science 2021年第1期767卷

作者： Nur Syahirah Hashim Wiwin Windupranata Khairul Nizam Tahar Saiful Aman Hj. Sulaiman Centre of Studies for Surveying Science and Geomatics University of Technology MARA Shah Alam Selangor Malaysia and Geodesy. Geomatics Engineering Study Program Faculty of Earth Science and Technology Institute Technology of Bandung Indonesia.

Satellite-derived bathymetry (SDB) emerging as a cost-effective that provides high-resolution mapping over a wide area. This method can map shallow water environment, especially that are difficult to access by boat or airplane. SDB is not for replacing the conventional bathymetry method but to assist. The accuracy of SDB does not meet current International Hydrographic Organization (IHO) S-44 standards but still can use when planning hydrographic surveying, i.e., unsurvey areas or areas with old data. In this paper, the SDB method applies to produces bathymetric mapping at Pantai Tok Jembal, Terengganu, Malaysia. Derived from Landsat 8 images and for the bathymetry method use is an empirical-based method, Log-ratio Transform. To diversify the result, utilizing three atmospheric correction approaches: No. atmospheric correction, Dark Object Subtraction (DOS), and Fast Line-of-sight Atmospheric Analysis of Hypercubes (FLAASH). The SDB result then evaluates using Single Beam Echo Sounding (SBES) ground truth data. The result indicates that Log-ratio Transform with DOS atmospheric correction produces the best result based on the error analysis. The error mostly occurs when there is no data available in the particular area due to cloud cover and shallow water area, i.e., inaccessible boat or vessel area. The error also occurs as it goes deeper area where the light is limited. In conclusion, this study successfully produces bathymetric mapping at Pantai Tok Jembal, Terengganu, Malaysia, through the SDB technique. This method strengthens the SBES data by effectively filling the data gaps; however, further research needs to fulfill this support in giving high accuracy and reliability.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：