ABSTRACT During the post-classification for raster land cover updating, manual data inconsistency checking is labour-intensive and time-consuming. To address this issue, a spatial relationships-based data inconsistency detection method is proposed, which includes a model that represents the topological relations, a set of prejudgment rules, and a multiple-matching process for posteriori judgement.

(2021). Editorial. Journal of Spatial Science: Vol. 66, No. 3, pp. 363-364.

(2021). Spatial analysis methods and practice: describe–explore–explain through GIS. Journal of Spatial Science: Vol. 66, No. 3, pp. 533-534.

(2021). Best Research Paper Award 2021. Journal of Spatial Science: Vol. 66, No. 3, pp. 535-536.

(2021). Road edge detection based on combined deep learning and spatial statistics of LiDAR data. Journal of Spatial Science. Ahead of Print.

ABSTRACT Optimal location-allocation of schools is an important issue in urban land use planning. Current models often focus on the perspective of increased land use demand. However, in some areas, a decrease in the number of students can result in the reduction in the number of required schools. To approach that, a multi-objective optimization model for school location-allocation considering demographic

ABSTRACT Receiver code biases (RCBs) have long been identified as time-constant. However, RCBs can exhibit remarkable intraday variability, which affects GNSS-based ionospheric retrieval and timing applications with different combinations. Previous studies remain on characterizing the variation of geometry-free linear combinations. In this contribution, we propose a modified geometry-free (MGF) GNSS

ABSTRACT We developed a novel method for retrieving land-surface albedo (LSA) based on 338 groups of meteorological and NPP-VIIRS albedo data. Results showed that the LSA retrieval model calibrated using therandom forest (RF) machine-learning regression algorithm performed well. The RF-based LSA retrieval model explained approximately 84% of the NPP-VIIRS albedo variation (R2 = 0.8429; N = 236) and

ABSTRACT Marine and coastal areas are under significant pressures due to the intense concentration of population and activities that often drive in conflicts. Marine spatial plans need to be enacted and implemented, considering the particularities of marine areas, the existing and future activities and uses and their environmental impact and the land–sea interaction. The paper main question concerns

ABSTRACT The fractal behaviour of gravity field elements was investigated. Particularly, the geoidal heights, gravity anomalies and vertical deflection components were considered. Such data were synthesized from the ultra-high degree SGG-UGM-1 geopotential model. The Egyptian Territory was selected as the study area. To supplement the results, parallel fractal analyses were performed on the GTM3A,

ABSTRACT This study presents a framework for spatially interpolating Cyclone Global Navigation Satellite System (CYGNSS) data over land. The method, Previously-Observed Behavior Interpolation (POBI), assumes that reflectivity data can be interpolated at unsampled locations by quantifying how past observations of reflectivity at the unsampled location varied with past observations of reflectivity at

ABSTRACT This paper examines the accuracy of the Global Positioning System (GPS) within the African low-latitude sector. We evaluated the vertical and horizontal of the single-point positioning (SPP) accuracy of GPS and critically analysed the effects of the equatorial ionospheric anomaly (EIA) over the region of study. Our results imply that using single-frequency GPS for any application could give

ABSTRACT This paper examined the use of navigation and point-of-interests big data in three urban planning tools: community detection, road importance assessment, and urban function pattern recognition. We revealed the community structure for the urban spatial organization, followed by identifying major transit corridors and the urban function pattern. We found that the detected communities were significantly

ABSTRACT The landscape-level estimation of nitrogen will constitute a significant input in global change models. High resolution broadband satellite technology is a promising solution to the limitation of spatial coverage. This study sought to identify an optimal spatial resolution for estimating foliar nitrogen in dry miombo woodlands. The contrast texture measure, calculated at increasing window

ABSTRACT To address blur and noise issues caused by airlight and atmospheric scattering in nighttime imaging environment, we proposed a multi-frame image restoration method. First, the Luojia 1–01 night-light image degradation model was derived. Thereafter, the APSF (Atmospheric Point Spread Function) for night-light images was estimated. Improved dark channel prior and sparse constraint models were

ABSTRACT In order to adapt map tiles to high resolution display devices, some internet map providers pre-generate and store more than two sizes of map tiles. However, it is inefficient to download larger high-resolution tiles, and they will occupy a larger storage space on map servers. In this paper, a new efficient internet map tile rendering approach on high resolution devices based on bicubic and

ABSTRACT Previous studies neglected the impact of shared spatio-temporal interests in the Point of Interest (POI) recommendation. The proposed GHTG-ERWR method simultaneously models shared spatio-temporal preferences of users, the dynamics of users’ behavior, and the geographical effect for POI recommendation. It is composed of an Extended Random Walk with Restart (ERWR) algorithm that works on a 

(2021). Editorial. Journal of Spatial Science: Vol. 66, No. 2, pp. 181-182.

(2021). AUTHOR AWARDS. Journal of Spatial Science: Vol. 66, No. 2, pp. 361-361.

ABSTRACT Spatial depiction of wheat and predicting yields are crucial for national food security measures. This study has employed multi-temporal synthetic aperture radar (SAR) data for spatial mapping of winter wheat and estimating its acreage in the Gorakhpur district. Results showed that the estimated acreage of winter wheat based on SAR data was 189,740 hectares. Accordingly, the yield and production

ABSTRACT The convergence of flooding and environmental contamination heightens the potential for mobility and transfer of toxic substances. Spatial analytic platforms can help identify the risks of toxic substance release during flooding, but these platforms are not integrated with one another, making data sharing difficult across platforms. Using the Toxics Mobility Inventory for the State of Rhode

ABSTRACT This study examined how urban dispersion can act as passive thermal comfort method in New Cairo, Egypt. Using shrub dispersion patterns to determine the optimum dispersion pattern for urban settlements in hot climates. Shrubs’ self-organised patterns were examined, then translated into mathematical equations that formed the basis of an algorithm to guide the redistribution of existing buildings

ABSTRACT In this study, three different procedures: checkpoint RMS of residuals, statistical evaluation of AT results using t-test, and comparison of a photogrammetric digital surface model (DSM) and LiDAR data are used to analyse the effect of IMU and GNSS uncertainties on the final adjusted results. The outcome suggests that the method of block-wise GNSS shift correction is the better method for

ABSTRACT In this study, three different procedures: checkpoint RMS of residuals, statistical evaluation of AT results using t-test, and comparison of a photogrammetric digital surface model (DSM) and LiDAR data are used to analyse the effect of IMU and GNSS uncertainties on the final adjusted results. The outcome suggests that the method of block-wise GNSS shift correction is the better method for

ABSTRACT To compare and evaluate the performance of different multi-GNSS fractional cycle biases (FCBs) products and precise point positioning (PPP) ambiguity resolution. We compare the stability and positioning performance of the School of Geodesy and Geomatics (SGG) and CNES GPS\Galileo FCBs products. The results show that similar stability and high consistency are observed between the two products

ABSTRACT Polyconic map projections are rarely used for world maps because traditional polyconic mappings do not have a favourable distortion pattern. However, this paper demonstrates that the generalized versions of these projections can be adjusted well for global maps. The formulae are optimized numerically to ensure that the projections will have as low distortion as possible. Furthermore, optimal

(2021). Editorial. Journal of Spatial Science: Vol. 66, No. 1, pp. 1-2.

(2021). AUTHOR AWARDS. Journal of Spatial Science: Vol. 66, No. 1, pp. 179-179.

ABSTRACT This study evaluated the use of low-cost materials for radiometric calibration of multispectral images. Four materials were tested: plywood panels painted with matte paint (M1); plywood panels covered with synthetic nappa leather (M2); Ethylene Vinyl Acetate (EVA) panels (M3), and plywood panels covered with Polyvinyl chloride (PVC) canvas (M4). The useful life of all materials and the errors

GDOP minimization criterion is applied to optimize positioning configuration. In this study, two kinds of GDOPs are introduced, the first kind of GDOP does not consider the clock error, the second ...

The phase difference method can compensate the atmospheric disturbance in GB-SAR interferometry without the process of phase unwrapping, but its accuracy and effectiveness have not been analysed. T...

Throughout the past few decades, advancements in global navigation satellite systems (GNSS), such as the Global Positioning System (GPS), have resulted in real-time planimetric accuracy at the cent...

ABSTRACT This contribution is aimed to show that careful ionospheric modelling can enhance the single-frequency code single point positioning (SPP) performance for both kinematic and static scenarios. Attention is restricted to the SPP quality driven by the IRIM under geomagnetic storm conditions. A Kalman filter-based model is formed for kinematic/static SPP users with which one combines GPS single-frequency

Remote sensing soil moisture (SM) has a low spatial resolution. By contrast, to validate remote SM maps, point measurements gathered from scattered in situ stations are typically used. Therefore, a...

The naive algorithm for generating nearest-neighbour models determines the distance between every pair of nodes, resulting in quadratic running time. Such time complexity is common among spatial pr...

(2020). Editorial. Journal of Spatial Science: Vol. 65, No. 3, pp. 375-376.

(2020). Best Research Paper Award 2020. Journal of Spatial Science: Vol. 65, No. 3, pp. 553-554.

Spatial trajectory data, interestingly attracting organizations to obtain mobility-based activity patterns of smartphone users. One of the basic objective in this regard is the determination of ‘st...

The location of highway signs has a significant impact on timely route-finding and also on avoiding potential driver confusion. This paper proposes an approach based on three-dimensional spatial an...

Recently, it has been shown how quaternion-based representation of a rotation matrix has advantages over conventional Eulerian representation in 3D similarity transformations. The iterative estimat...

Mobile signaling data (MSD) have become important for studying the characteristics of transportation network structures and human socioeconomic activities. However, the conversion of MSD into datas...

Informative feature extraction from hyperspectral image (HSI) is the primary and most challenging task in the hyperspectral data processing. The rich source of HSI information provides effective gr...

(2020). Author awards. Journal of Spatial Science: Vol. 65, No. 2, pp. 361-361.

(2020). JOURNAL OF SPATIAL SCIENCE REVIEWERS – 2019. Journal of Spatial Science: Vol. 65, No. 2, pp. 363-374.

Regularization is often necessary in parameter estimation of spherical radial basis function (SRBF) based regional gravity modelling. In this work, a new regularization method, namely the L1-norm r...

Airborne vector gravimetric data have become increasingly available. A general band-limited horizontal boundary value problem using horizontal components of these vector gravimetric data is formula...

In this study, Spatial Multi-Criteria Evaluation and the least cost path analysis were applied to find the optimal by-pass road alignment in the Tlokweng Planning Area in Botswana. One-At-a-Time se...

Atmospheric sensing by Global Navigation Satellite System (GNSS) signals has been exclusively studied for over two decades. This study derives the real-time Precipitable Water Vapour (PWV) by takin...

BIM is now a routine approach to infrastructure development especially for major projects committed to maintaining critical path activity and providing cost effective and efficient project development. In many technologically advanced areas of endeavour, integration of related knowledge and systems can provide superior outcomes. In this respect, the publication of our Special Feature on the Nexus of

There is increasing recognition of the potential of Building Information Modelling (BIM) in the Architecture, Engineering and Construction (AEC) industry. With the growing use and adoption of BIM, ...

The international GNSS service (IGS) started publishing the precise ephemeris files in the form of the standard products #3, version C (the sp3c files) in which the GPS satellite orbits and clocks ...

Positioning integrity is essential in navigation. A novel approach is proposed for integrity monitoring that combines the Advanced Receiver Autonomous Integrity Monitoring (ARAIM) with Non-Line-of-...

Accurate spatial modelling of forest characteristics is one of the most important challenges in remote sensing applications. In this study, we compared the ability of Multiple Linear Regression (ML...

In the article is presented a method for creating an interactive web map of the preindustrial state on the basis of analogue nineteenth-century maps of Upper Silesia (southern Poland). The main obj...

This paper introduces Singapore Views as a novel 3D-4D interface to visualize large space-time datasets with applications in smart cities. The engine enables a combination of geographic information...

Automatic building rooftop extraction is of great importance to many applications including building reconstruction, solar energy supply, and disaster management. This study proposes a building roo...

Point feature selection aims at preserving global patterns of point cluster during map scaling. This is an important technique for clear presentation of points in multi-scale maps. However, existin...

Populating and depopulating cities have some degree of underutilised land. The duration of vacancy, or length of time a property remains unused, more strongly influences urban decline than the amou...

February 1, 2017, EOP 14C04 aligned to the ITRF2014 was adopted by IERS. To assess the improvement of EOP 14C04, the differences between EOP 14C04 and EOP 08C04 are firstly analyzed. Then, the caus...

(2020). Author Awards. Journal of Spatial Science: Vol. 65, Multi-GNSS processing, positioning and applications, pp. 187-187.