Geoinformation for Informed Decisions

Rahman, Alias Abdul; Bogusławski, Paweł; Anton, François; Said, Mohamad Nor; Omar, Kamaludin Mohd

doi:10.1007/978-3-319-03644-1

Cited by 11 publications

(1 citation statement)

References 108 publications

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“…Nowadays, accessing accurate real time satellite ephemeris and clock data has begun to receive increased attention among the scientific users of Global Navigation Satellite System (GNSS) (Ramachandran et al, 2019).The measurements determined via GNSS surveying, specifically in Malaysia, are currently not subject to any sort of validation, primarily involving the Network Real-Time Kinematic (N-RTK) technique .DSMM ascertain a new Continuously Operating Reference Station (CORS) network known as the Malaysian Real-Time Kinenatic GNSS Network (MyRTKnet) with 78 reference stations nationwide in order to enhance the MASS stations and assist the generation of network-based positioning solutions in year 2002. Nevertheless, these stations experienced land displacement on 26 December 2004 in the range of 1.5-1.7 cm and orientation mostly in the south-west direction due to the co-seismic motion from the Aceh earthquake (DSMM,2009 andShariff et al, 2014. ).…”

Section: Overview Of Geocentric Datum In Malaysiamentioning

confidence: 99%

The Implementation of Modern Geocentric Datum: A Review

Yazid

Din

Abdullah

et al. 2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. A dynamic datum denotes a coordinate datum in real-time linked with the International Terrestrial Reference Frame (ITRF) in order to provide a dynamic ITRF-like datum to the users. The ITRF is dynamic and updating every few years as its stations’ coordinates consider the motion of earth’s tectonic plate and other deformations. This paper is an effort to review the implementation of dynamic geocentric datum techniques from a few countries. An overview of dynamic geocentric datum implements Malaysia, Australia, New Zealand, Uzbekistan, Israel and Brunei will be summarized to support the future application. Thus, a review consists of a type of datum; datum parameters, reference frame and epoch will be discussed and outlined. This initiative is the significance for the advancement of the future datum development.

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Section: Overview Of Geocentric Datum In Malaysiamentioning

confidence: 99%

The Implementation of Modern Geocentric Datum: A Review

Yazid

Din

Abdullah

et al. 2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Spatial interrelationship of landslides, litho‐tectonics, and climate regime, Satluj valley, Northwest Himalaya

2018

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Landslides have been considered widely as principal mass wasting agents in the valleys experiencing varied influence of tectonics and climate. However, pattern of landslides is rarely addressed in the literature that may act as a surface manifestation of interrelationship of tectonics, climate, and lithology. Here, we have attempted to understand such interrelationship in the context of landslide distribution pattern in the Satluj valley, Northwest Himalaya. Geomorphic indices such as steepness index, valley floor width to valley height ratio, and topographic swath profile were used for tectonic inference. Daily rainfall data of the year 2000-2016, using 5 rain-gauge stations and swath profile of Normalized Difference Vegetation Index, were used to deduce spatial variability of climate. Influence of lithological variability and regional faults; Sangla Detachment, Main Central Thrust, and Munsiari Thrust on the landslide distribution are also inferred. A total of 55 landslides (20 rock avalanche, 19 debris slides, and 16 rockfalls) are found to exist in 6 clusters along 130 km stretch of the Satluj valley. These landslides, covering a total area (A) and volume (V) of 1.05 × 10 7 m 2 and 4.4 × 10 7 m 3 , respectively, are also noted to follow a power law (R 2 = 0.8) and result in a scaling relationship of V = (0.180)A 1.208 .

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