Semarang is the capital of Central Java province, located in northern coast island, Indonesia. Land subsidence has been widely reported and its impacts can be seen already daily life. Based on estimation from Levelling, Interferometric Synthetic Aperture Radar (InSAR), Microgravity Global Positioning System (GPS) survey methods, land with rates up to about 19 cm/year were observed during period 1999 2011. Results derived GPS since 2008 2011 show that spatial temporal variations, average 6 7...

Abstract. Jakarta is the capital city of Indonesia with a population about 10.2 million people, inhabiting an area 660 square-km. It located within deltaic plain and passes by 13 natural artificial rivers. In last three decades, urban development has grown very rapidly in sectors industry, trade, transportation, real estate many others, which caused several negative environmental impacts. turns then prone toward few hazards mainly land subsidence flooding. general, based on geodetic...

The Sunda arc forms the southern border of Indonesia Archipelago, where Indo-Australian plate is subducted beneath Eurasia. age subducting increases from Sumatra in west to Flores east. increase consistent with an dip along and increasing depth seismic activity. motion Australia respect West Java 68 mm/yr a direction N11E orthogonal trench. A number active faults characterizing this area include Cimandiri fault, Lembang fault Baribis fault. This research uses campaign continues GPS data make...

Abstract. Jakarta is the capital city of Indonesia located in west-northern coast Java island, within a deltaic plain and passes by 13 natural artificial rivers. This megapolitan has population about 10.2 million people inhabiting an area 660 km2, with relatively rapid urban development. It been reported for many years that several places are subsiding at different rates. The main causative factors land subsidence most probably excessive groundwater extraction, load constructions (i.e.,...

Bandung basin which located in West Java, Indonesia is a large intra-montane surrounded by volcanic highlands. The highly urbanized area whose population has been rapidly increasing since few decades ago. It widely believed that the increase of population, as well industrial activities, will degree groundwater extraction and eventually lead to land subsidence over basin. According results ten champaign GPS (Global Positioning System) surveys, were conducted within period 2000 2012 it was...

The Prambanan Temple cluster is a world heritage site that has significant value for humanity, multiple zone arrangement of highly ornamented towering temples, and Hindu architectural pattern design. It lies near the Opak Fault, at foothills Mount Merapi, on an unstable ground layer, surrounded by human activities in Yogyakarta, Indonesia. site’s vulnerability implies necessity 3D digital documentation its conservation, but complexity poses difficulties. This work aimed to address this...

Java Island, located in Indonesia, is the country’s main island, with a population of 150 million, more than half country. There are at least four big cities on island that have seen fast development last 30 years. The land subsidence (LS) issue caused by groundwater overexploitation, compaction, and geological setting, has been known for 20 However, past studies mostly focused one particular important area, while picture LS whole often overlooked. This study utilized Sentinel-1 Synthetic...

Abstract Land Subsidence became recent issue in environmental management Indonesia. Large cities Indonesia, especially Java Island, are well known to suffer from fast rate land subsidence such as Jakarta, Bandung, and Semarang. However, the phenomena is presumed also happen other which have large industries located on deposit or clay soil layer. The effect of may be different some location, but coastal zone will more impact since induce tidal flood cause area reduction. In this study, we use...

The availability of land in Bandung City become a challenge for urban development. has long been an urbanization destination Indonesians besides Jakarta, Surabaya, Medan, and Makassar. Currently there was still limited research that explores values spatial planning areas. This study aims to develop modeling using semi-variogram geostatistical approach Our conducted City, West Java (Indonesia). Data selected based on purposive sampling involving 50 price 95 building samples throughout the...

Land subsidence is not a new phenomenon for Jakarta and Semarang areas. According to some publications, the value of Jakarta’s may reach 2-4 meter in certain place. Meanwhile, more than 2 taking place northern part Semarang. Some techniques are being used derive land information these areas such as repeated leveling measurements, GPS surveys, InSAR measurements. The impact could be seen several ways, sea inundation (“Rob” Javanese), problem on infrastructures, wider expansion flooding areas,...

Land subsidence is not a new phenomenon for Semarang the capital city of Central Java Province with recent population about 1.5 million. Some report said in probably occurring more than 100 years. Geodetic surveys such as GPS Surveys can detect land accurately. exhibits spatial and temporal variations typical average rates 3 to 10 cm/year until recently it seem acceleration existed some region city. This will increase risk negative consequences from subsidence. paper present discuss detected...

Land subsidence is not a new phenomenon for Semarang. Some report said the in Semarang probably occurring more than 100 years. Based on leveling surveys conducted by Centre of Environmental Geology from 1999 to 2003 it was found that relatively large detected around Harbor, Pondok Hasanuddin, Bandar Harjo and Tawang Railway station, with rates ranging 1 17 cm/year. Results derived GPS show land has spatial temporal variations. In general, have an average rate about 6 7 cm/year, maximum can...

As the GNSS signals transmitted through atmosphere, they are delayed by interference of TEC (Total Electron Content) in ionosphere and water vapor troposphere. By using inverse-problem, name Meteorology, those parameters can be obtained precisely several researches has approved supported that method. However, geodetic receivers relatively high cost ($30,000 to $70,000 each) established on a regular uniform network. This research aims investigate potential use low receiver (less than $2,000)...

In Indonesia, Global Navigation Satellite System (GNSS) has become one of the important tool in survey mapping, especially for cadastral purposes like land registration by using Real Time Kinematic (RTK) GNSS positioning method. The conventional RTK method ensure high accuracy position solution (within several centimeters) baseline less than 20 kilometers. problems resolving a greater distance (more 50 kilometers) becomes challenge. longer baseline, atmospheric delays is critical factor that...

Since 2009, the latest satellite based positioning system in form of global (GPS) continuously operating reference station (CORS) has been tested to support cadastral surveying and mapping Indonesia, specifically Java Bali islands. The main aim this GPS CORS implementation is speed up land registration process Indonesia. Currently about 55% parcels are still be certificated (e.g. 48 million parcels), 90% area mapped for purposes 83 ha). At present 2013, there 183 stations have established...

Land subsidence in Semarang is a severe hazard threatening people and urban infrastructure. suspected expand to North Demak. It shows that has been leading costly damages infrastructure such as buildings roads. Another disaster like flooding will ruin the city frequently increasingly severely affecting living conditions. The Principle of land monitoring with GPS determine coordinates point on carefully selected location are conducted periodically at regular. By studying characteristic speed...

Abstract Land subsidence occur in some large cities Java Island, Indonesia. Among those cities, Pekalongan suffer relatively and consistent rate of land compared to other cities. Impact this long-term manifested as worsen flood, infrastructure damage, decline ground water quality. To see the continuation Pekalongan, we use Sentinel-1 data from 2016 2023 both ascending descending direction spatio-temporaly mapped magnitude subsidence. Persistent Scatterer InSAR (PS-InSAR) method is used...