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Journal articles on the topic 'Spatial survey'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

A.Rajamani, A. Rajamani, and Dr V. Krishnaveni Dr.V.Krishnaveni. "Survey on Spatial Filtering Techniques." International Journal of Scientific Research 3, no. 4 (June 1, 2012): 153–56. http://dx.doi.org/10.15373/22778179/apr2014/53.

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2

Brown, Catherine. "Spatial Survey Methods Workshops." Bulletin of the Ecological Society of America 84, no. 2 (April 2003): 53. http://dx.doi.org/10.1890/0012-9623(2003)84[53b:ssmw]2.0.co;2.

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3

Tong, Yongxin, Zimu Zhou, Yuxiang Zeng, Lei Chen, and Cyrus Shahabi. "Spatial crowdsourcing: a survey." VLDB Journal 29, no. 1 (August 29, 2019): 217–50. http://dx.doi.org/10.1007/s00778-019-00568-7.

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Gummidi, Srinivasa Raghavendra Bhuvan, Xike Xie, and Torben Bach Pedersen. "A Survey of Spatial Crowdsourcing." ACM Transactions on Database Systems 44, no. 2 (April 8, 2019): 1–46. http://dx.doi.org/10.1145/3291933.

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Lakka, Eftychia, Athanasios Malamos, K. G. Pavlakis, and J. A. Ware. "Spatial Sound Rendering – A Survey." International Journal of Interactive Multimedia and Artificial Intelligence 5, no. 3 (2018): 33. http://dx.doi.org/10.9781/ijimai.2018.06.001.

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6

Meen, Geoffrey. "Spatial housing economics: A survey." Urban Studies 53, no. 10 (April 19, 2016): 1987–2003. http://dx.doi.org/10.1177/0042098016642962.

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7

Chen, Lisi, Shuo Shang, Chengcheng Yang, and Jing Li. "Spatial keyword search: a survey." GeoInformatica 24, no. 1 (July 4, 2019): 85–106. http://dx.doi.org/10.1007/s10707-019-00373-y.

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8

Robotham, A., S. P. Driver, P. Norberg, I. K. Baldry, S. P. Bamford, A. M. Hopkins, J. Liske, et al. "Galaxy and Mass Assembly (GAMA): Optimal Tiling of Dense Surveys with a Multi-Object Spectrograph." Publications of the Astronomical Society of Australia 27, no. 1 (2010): 76–90. http://dx.doi.org/10.1071/as09053.

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AbstractA heuristic greedy algorithm is developed for efficiently tiling spatially dense redshift surveys. In its first application to the Galaxy and MassAssembly (GAMA) redshift survey we find it rapidly improves the spatial uniformity of our data, and naturally corrects for any spatial bias introduced by the 2dF multi-object spectrograph. We make conservative predictions for the final state of the GAMA redshift survey after our final allocation of time, and can be confident that even if worse than typical weather affects our observations, all of our main survey requirements will be met.

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9

Johnson, D. L. "SPATIAL AUTOCORRELATION, SPATIAL MODELING, AND IMPROVEMENTS IN GRASSHOPPER SURVEY METHODOLOGY." Canadian Entomologist 121, no. 7 (July 1989): 579–88. http://dx.doi.org/10.4039/ent121579-7.

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AbstractAnalysis of 10 years of grasshopper survey data (1978–1987) indicated that grasshopper populations in fields can be reliably predicted from roadside survey counts. Direct estimation of grasshopper densities in crop fields is no longer required for summaries of infestation levels or forecasts. Spatial autocorrelation was significant and positive for both roadside and field counts. The coefficient of variation of the field counts was greater than that of the roadside counts in each of the last 10 years. Population density was summarized by crop type and sampling method for the last 10 years. Linear regressions fitted to the 1978–1984 grasshopper survey data were used to estimate field population density from crop type and roadside counts in 1985–1987. Maps of population density were generated from the predicted and observed field counts with SPANS, a microcomputer-based geographic information system. Large coefficients of association (73–79%) between the predicted and observed maps attested to the sufficiency of road-side counts as the basis for production of population density maps.

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Setiawan, Cahyadi, Suratman Suratman, and Muh Aris Marfa,i. "KONDISI SUMUR DAN PEMODELAN ARAH ALIRAN AIRTANAH BEBAS PADA BENTUKLAHAN FLUVIOMARIN DI JAKARTA." Jurnal SPATIAL Wahana Komunikasi dan Informasi Geografi 16, no. 2 (September 30, 2016): 1–9. http://dx.doi.org/10.21009/spatial.162.01.

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ABSTRACT Growing population have an impact on the strategy of fulfillment the water need and degradation of groundwater quality in Jakarta, especially in fluviomarine landforms in Jakarta. The purpose of this study was to determine the condition of wells and create a model of groundwater flow direction on fluviomarine landforms based on the season. Methods in this research study include three main aspects, namely population, characteristics of the object under study, and analysis. The population in this study using 30 groundwater wells sample representative of the population. Relating to the characteristics of the object under study, this study using a survey method. The survey is a sample survey on wells population who still use unconfined groundwater. About data analysis, then in this study used quantitative and qualitative approaches to the modeling of the groundwater flow direction using the Inverse Distance Weighted (IDW) in ArcGIS. The results showed that the unconfined groundwater wells in the study area consisted of dug wells and pantek wells. It is generally known that groundwater levels in the rainy season are higher than the dry season with a depth of groundwater level in the dry season to be deeper than the rainy season. Most of the groundwater level in organic settlements in the study area is below sea level, whereas in planned settlements is rarely found people who use groundwater. The depth of unconfined groundwater well less than 20 m with a thickness of water on the wells in the rainy season are thicker than the dry season. Groundwater flow direction along the north coast of central and western parts likely to lead to the mainland, while the southern part has a groundwater flow that is likely to lead to the North. Keywords: Fluviomarine Landforms In Jakarta; Unconfined Groundwater; Groundwater Flow Direction

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11

Pennings, Helena J. M., Esther A. P. B. Oprins, Hans Wittenberg, Mark M. J. Houben, and Eric L. Groen. "Spatial Disorientation Survey Among Military Pilots." Aerospace Medicine and Human Performance 91, no. 1 (January 1, 2020): 4–10. http://dx.doi.org/10.3357/amhp.5446.2020.

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BACKGROUND: Spatial disorientation (SD) remains a significant cause of accidents and near accidents. A variety of training methods have been used to assist pilots to anticipate the SD problem. The value of such training in the prevention of disorientation has been difficult to assess.METHODS: To study transfer of SD awareness training, we related reported incidents to the content and frequency of SD awareness training received. The questionnaire was completed by 368 out of 495 pilots; 189 currently flying fixed-wing, and 150 flying rotary-wing aircraft. On average, their age was 38, and they had 2466 flight hours on-type.RESULTS: Respondents gave high ratings for the importance of SD training and their awareness of SD, the latter being one of the training objectives. The amount of SD training received by respondents was positively correlated with ratings for appreciation and importance. Self-rated awareness was positively correlated with the number of reported SD experiences. Although the correlations were below 0.50, the results provide an indication that SD training is effective. In total, respondents reported 5773 SD experiences, 195 of them resulting in a serious risk for flight safety. Narratives of these serious events show that, in many cases, pilots managed their SD by carefully checking the flight instruments, and also by good crew coordination.DISCUSSION: The results of the survey provide some evidence, although based on subjective reports, for transfer of SD training. The results of the SD experiences can be used to improve the SD training in terms of content and frequency.Pennings HJM, Oprins EAPB, Wittenberg H, Houben MMJ, Groen EL. Spatial disorientation survey among military pilots. Aerosp Med Hum Perform. 2020; 91(1):4–10.

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12

Chen, Juan, Anthony G. Cohn, Dayou Liu, Shengsheng Wang, Jihong Ouyang, and Qiangyuan Yu. "A survey of qualitative spatial representations." Knowledge Engineering Review 30, no. 1 (October 17, 2013): 106–36. http://dx.doi.org/10.1017/s0269888913000350.

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AbstractRepresentation and reasoning with qualitative spatial relations is an important problem in artificial intelligence and has wide applications in the fields of geographic information system, computer vision, autonomous robot navigation, natural language understanding, spatial databases and so on. The reasons for this interest in using qualitative spatial relations include cognitive comprehensibility, efficiency and computational facility. This paper summarizes progress in qualitative spatial representation by describing key calculi representing different types of spatial relationships. The paper concludes with a discussion of current research and glimpse of future work.

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13

Jiang, Zhe. "A Survey on Spatial Prediction Methods." IEEE Transactions on Knowledge and Data Engineering 31, no. 9 (September 1, 2019): 1645–64. http://dx.doi.org/10.1109/tkde.2018.2866809.

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14

Huang, Wei, Shengyong Chen, and Wanliang Wang. "Navigation in spatial networks: A survey." Physica A: Statistical Mechanics and its Applications 393 (January 2014): 132–54. http://dx.doi.org/10.1016/j.physa.2013.09.014.

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15

He, Xiangyang, Yubo Tao, Qirui Wang, and Hai Lin. "Multivariate spatial data visualization: a survey." Journal of Visualization 22, no. 5 (August 9, 2019): 897–912. http://dx.doi.org/10.1007/s12650-019-00584-3.

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16

Chapman, Tamra F., and W. Lachlan McCaw. "Where to survey? Spatial biodiversity survey gap analysis: a multicriteria approach." Pacific Conservation Biology 23, no. 2 (2017): 189. http://dx.doi.org/10.1071/pc16030.

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The aim of this study was to quantify the relative effort for biodiversity surveys across the public forest estate in the south-west of Western Australia. We collated information on historical surveys into a metadatabase and recorded locations where surveys had been conducted in a spatial geodatabase. We then used multicriteria modelling to rank land conservation units on the basis of relative survey effort. The results indicated that the western, particularly the south-western, parts of the study area were relatively well surveyed while eastern parts were relatively poorly surveyed. This is likely to reflect greater habitat loss and fragmentation of vegetation on the eastern margins of the forest estate where it adjoins the extensively cleared Western Australian wheatbelt. There was also an emphasis on monitoring biodiversity in forest habitats closer to the main population centres of the south-west. The results of this analysis provide a basis for assessing future survey needs for the region, which should also consider: patterns of distribution in species richness; the extent, connectivity and conservation status of native vegetation; and the relative risks posed to biodiversity by infrastructure and industrial land uses. We discuss the potential limitations of the multicriteria modelling approach in the context of our study.

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17

Vašíček, Bořek. "Spatial economics and spatial externalities: A survey of theory and emprics." Politická ekonomie 56, no. 5 (October 1, 2008): 684–708. http://dx.doi.org/10.18267/j.polek.659.

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18

L. Zala, Mr Rushirajsinh, Mr Brijesh B. Mehta, and Mr Mahipalsinh R. Zala. "A Survey on Spatial Co-location Patterns Discovery from Spatial Datasets." International Journal of Computer Trends and Technology 7, no. 3 (January 25, 2014): 137–42. http://dx.doi.org/10.14445/22312803/ijctt-v7p140.

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19

Rivinius, Th, W. J. de Wit, Z. Demers, and A. Quirrenbach. "AMBER/VLTI Snapshot Survey on Circumstellar Environments." Proceedings of the International Astronomical Union 9, S307 (June 2014): 297–300. http://dx.doi.org/10.1017/s1743921314006991.

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AbstractOHANA is an interferometric snapshot survey of the gaseous circumstellar environments of hot stars, carried out by the VLTI group at the Paranal observatory. It aims to characterize the mass-loss dynamics (winds/disks) at unexplored spatial scales for many stars. The survey employs the unique combination of AMBER's high spectral resolution with the unmatched spatial resolution provided by the VLTI. Because of the spatially unresolved central OBA-type star, with roughly neutral colour terms, their gaseous environments are among the easiest objects to be observed with AMBER, yet the extent and kinematics of the line emission regions are of high astrophysical interest.

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20

Kealy, Shimona, Lucas Wattimena, and Sue O'Connor. "A Geological and Spatial Approach to Prehistoric Archaeological Surveys on Small Islands: Case Studies from Maluku Barat Daya, Indonesia." Kapata Arkeologi 14, no. 1 (July 30, 2018): 1. http://dx.doi.org/10.24832/kapata.v13i2.458.

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Survei arkeologi sangat penting untuk penemuan dan interpretasi sisa-sisa yang ditinggalkan oleh aktivitas manusia prasejarah. Saat ini penginderaan jarak jauh dan model prediktif telah meningkatkan jangkauan dan keberhasilan survei arkeologi, namun survei pejalan kaki untuk mengembangkan parameter model dan prediksi kebenaran dasar masih penting untuk keberhasilan suatu penemuan. Penelitian ini merupakan hasil survei arkeologi tahun 2017 di Pulau Babar Besar dan Pulau Wetang yang termasuk dalam bagian dari kelompok Kepulauan Babar, Maluku Barat Daya, Indonesia. Tercatat sebanyak 62 situs arkeologi ditemukan di kedua pulau tersebut, tujuh diantaranya merupakan situs lukisan cadas baru yang ditemukan di Pulau Wetang. Hasil survei ini menunjukkan keberhasilan penggunaan peta geologi dan topografi di samping citra satelit dalam mendeteksi daerah prospektif untuk survei. Hasil penelitian ini juga menunjukkan bahwa pemahaman karakteristik geologi daerah yang lebih rinci dan komparatif diperlukan sebelum dilakukan survei jarak jauh yang lebih lanjut di wilayah Maluku Barat Daya, Indonesia.Archaeological surveys are essential to the discovery and interpretation of remains left by past human activities. While remote sensing and predictive models have greatly improved the reach and success of archaeological survey, pedestrian surveys to develop model parameters and ground-truth predictions is still imperative for successful discoveries. Here we present the results of the 2017 archaeological survey of islands Babar Besar and Wetang in the Babar Island Group, Maluku Barat Daya, Indonesia. A total of 62 archaeological sites were recorded between the two islands; seven of which represent new rock art sites on Wetang island. Our survey results indicate the successful use of geological and topographic maps alongside satellite images in detecting prospective regions for survey. Results also indicate however that a more detailed and comparative understanding of the regions geology is required before more advanced forms of remote survey are conducted in the Maluku Barat Daya region.

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McGarvey, Richard, Stephen Mayfield, Karen Byth, Thor Saunders, Rowan Chick, Brian Foureur, John E. Feenstra, Peter Preece, and Alan Jones. "A diver survey design to estimate absolute density, biomass, and spatial distribution of abalone." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 9 (September 2008): 1931–44. http://dx.doi.org/10.1139/f08-101.

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Abalone surveys worldwide measure relative stock abundance. However, important advantages accrue if diver surveys measure absolute numbers or biomass per square metre. Principally, absolute biomass permits quota setting from a single survey using a decision table. Although relative abundance surveys have permanently fixed sampling protocols and locations, absolute abundance survey designs can be improved with technology over time. Furthermore, surveys can be directed to areas of principal management focus, and absolute survey population numbers by length with confidence intervals provide informative model input. We propose and test a transect survey design to estimate and map absolute density and biomass of abalone or other sedentary invertebrates. Divers count and measure all abalone within 1 m of a 100 m, boat-deployed leaded rope line. Semi-systematic transect locations provide spatially representative sampling inside bounded survey regions and geostatistical data for contour maps of abalone density and mean size. The effectiveness of the design for estimating change in population size under harvesting and for locating areas of fishable density was tested by a fish-down experiment, using surveys run before and after commercial harvest. The leaded-line survey design estimates of population change and spatial distribution showed agreement with the fish-down experimental harvest.

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Lewy, Peter, J. Rasmus Nielsen, and Holger Hovgård. "Survey gear calibration independent of spatial fish distribution." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 4 (April 1, 2004): 636–47. http://dx.doi.org/10.1139/f04-034.

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Trawl surveys provide important information for evaluation of relative stock abundance fluctuations over time. Therefore, when survey gears or vessels are changed, it is important to compare the efficiency and selectivity of old and new gears and vessels. A method for estimation of conversion factors is developed based on a survey design where paired hauls are taken in the same trawl track line. The method explicitly accounts for changes in fish density caused by trawling disturbance. A generalized linear model for paired hauls catches is analytically derived and the gear conversion and disturbance parameters with their precision are obtained using standard software. Simulation studies carried out additionally showed that the estimated conversion factors were practically unbiased. Because of the independence of the spatial fish distribution, the new method is preferable to the traditional paired hauls design for which it is generally not possible to obtain the statistical properties of the estimated conversion factors. The paper is concluded with suggestions on how to optimize survey design. The method was used to estimate conversion factors for Atlantic cod (Gadus morhua) from Danish gear calibration experiments in the Baltic Sea.

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23

Jiao, Yan, Rob O'Reilly, Eric Smith, and Don Orth. "Integrating spatial synchrony/asynchrony of population distribution into stock assessment models: a spatial hierarchical Bayesian statistical catch-at-age approach." ICES Journal of Marine Science 73, no. 7 (March 30, 2016): 1725–38. http://dx.doi.org/10.1093/icesjms/fsw036.

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Abstract In many marine fisheries assessments, population abundance indices from surveys collected by different states and agencies do not always agree with each other. This phenomenon is often due to the spatial synchrony/asynchrony. Those indices that are asynchronous may result in discrepancies in the assessment of temporal trends. In addition, commonly employed stock assessment models, such as the statistical catch-at-age (SCA) models, do not account for spatial synchrony/asynchrony associated with spatial autocorrelation, dispersal, and environmental noise. This limits the value of statistical inference on key parameters associated with population dynamics and management reference points. To address this problem, a set of geospatial analyses of relative abundance indices is proposed to model the indices from different surveys using spatial hierarchical Bayesian models. This approach allows better integration of different surveys with spatial synchrony and asynchrony. We used Atlantic weakfish (Cynoscion regalis) as an example for which there are state-wide surveys and expansive coastal surveys. We further compared the performance of the proposed spatially structured hierarchical Bayesian SCA models with a commonly used Bayesian SCA model that assumes relative abundance indices are spatially independent. Three spatial models developed to mimic different potential spatial patterns were compared. The random effect spatially structured hierarchical Bayesian model was found to be better than the commonly used SCA model and the other two spatial models. A simulation study was conducted to evaluate the uncertainty resulting from model selection and the robustness of the recommended model. The spatially structured hierarchical Bayesian model was shown to be able to integrate different survey indices with/without spatial synchrony. It is suggested as a useful tool when there are surveys with different spatial characteristics that need to be combined in a fisheries stock assessment.

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Kotwicki, Stan, Patrick H. Ressler, James N. Ianelli, André E. Punt, and John K. Horne. "Combining data from bottom-trawl and acoustic-trawl surveys to estimate an index of abundance for semipelagic species." Canadian Journal of Fisheries and Aquatic Sciences 75, no. 1 (January 2018): 60–71. http://dx.doi.org/10.1139/cjfas-2016-0362.

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Fishery-independent surveys are useful for estimating abundance of fish populations and their spatial distribution. It is necessary in the case of semipelagic species to perform acoustic-trawl (AT) and bottom-trawl (BT) surveys to ensure that sampling encompasses both midwater and demersal components of the population. Abundance estimates from both survey types are negatively biased because of the blind zones associated with fish vertical distribution. These biases can vary spatially and temporally, resulting in confounded trends and additional variation in abundance estimates. To improve abundance estimates for semipelagic species we propose a new method for combining BT and AT survey data using environmental variables to predict the vertical overlap. Using walleye pollock (Gadus chalcogrammus) AT and BT surveys in the eastern Bering Sea as an example, we show that combined estimates provide more reliable whole water column and spatial distribution estimates than either survey can by itself. Although the combined estimates are still relative, they account for the uncertainty in the bias ratio between the two survey methods and the uncertainty associated with the extent of the water column sampled by both surveys. Our method of combining BT and AT data can be extended to other semipelagic species.

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Borgoni, Riccardo, and Francesco Billari. "Bayesian spatial analysis of demographic survey data." Demographic Research 8 (February 11, 2003): 61–92. http://dx.doi.org/10.4054/demres.2003.8.3.

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Hussain, Mehdi, Ainuddin Wahid Abdul Wahab, Yamani Idna Bin Idris, Anthony T. S. Ho, and Ki-Hyun Jung. "Image steganography in spatial domain: A survey." Signal Processing: Image Communication 65 (July 2018): 46–66. http://dx.doi.org/10.1016/j.image.2018.03.012.

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Sony Nugratama Hijrawadi and Adrian. "Migration Pattern of Industrial Workers in Bekasi Regency." Jurnal SPATIAL Wahana Komunikasi dan Informasi Geografi 19, no. 1 (October 3, 2019): 25–31. http://dx.doi.org/10.21009/spatial.191.04.

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Bekasi Regency, which is located in the periphery cities of Jakarta and Bekasi, has experienced significant regional development. As an industrial area, Bekasi Regency is very attractive to prospective workers. The population problem that needs attention is the employment issue. As the population increases, the number of workers also increases. The purpose of this study is to geographically identify the area of origin of industrial labor in the Bekasi District which is the most dominant, to find out the characteristics of the industrial sector workforce based on their level of education and competence. This research used a quantitative descriptive method with a survey approach, and also conducted interviews with stakeholders, namely the local government of Bekasi Regency

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Manda, Samuel, Ndamonaonghenda Haushona, and Robert Bergquist. "A Scoping Review of Spatial Analysis Approaches Using Health Survey Data in Sub-Saharan Africa." International Journal of Environmental Research and Public Health 17, no. 9 (April 28, 2020): 3070. http://dx.doi.org/10.3390/ijerph17093070.

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Spatial analysis has become an increasingly used analytic approach to describe and analyze spatial characteristics of disease burden, but the depth and coverage of its usage for health surveys data in Sub-Saharan Africa are not well known. The objective of this scoping review was to conduct an evaluation of studies using spatial statistics approaches for national health survey data in the SSA region. An organized literature search for studies related to spatial statistics and national health surveys was conducted through PMC, PubMed/Medline, Scopus, NLM Catalog, and Science Direct electronic databases. Of the 4,193 unique articles identified, 153 were included in the final review. Spatial smoothing and prediction methods were predominant (n = 108), followed by spatial description aggregation (n = 25), and spatial autocorrelation and clustering (n = 19). Bayesian statistics methods and lattice data modelling were predominant (n = 108). Most studies focused on malaria and fever (n = 47) followed by health services coverage (n = 38). Only fifteen studies employed nonstandard spatial analyses (e.g., spatial model assessment, joint spatial modelling, accounting for survey design). We recommend that for future spatial analysis using health survey data in the SSA region, there must be an improve recognition and awareness of the potential dangers of a naïve application of spatial statistical methods. We also recommend a wide range of applications using big health data and the future of data science for health systems to monitor and evaluate impacts that are not well understood at local levels.

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McGarvey, Richard, John E. Feenstra, Stephen Mayfield, and Erin V. Sautter. "A diver survey method to quantify the clustering of sedentary invertebrates by the scale of spatial autocorrelation." Marine and Freshwater Research 61, no. 2 (2010): 153. http://dx.doi.org/10.1071/mf08289.

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Sedentary benthic invertebrates exhibit clustering at a range of spatial scales. Animal clustering reduces the precision of diver surveys and can accelerate overexploitation in dive fisheries. Dive harvesters target the densest aggregations of males and females that produce the highest rates of egg fertilisation during mass spawning events. By quantifying these effects of harvesting on fertilisation success, measuring animal clustering can inform stock management for reproductive sustainability. We present a method to measure the spatial extent of density aggregations down to 1 m, extending a previously described leaded-line survey design. Applying this method to abalone, research divers counted individuals in successive 1 × 2 m2 quadrats lying along adjoining pairs of 1 × 100 m2 transects. Clusters were observed as neighbouring quadrats of high animal density. Spatial autocorrelations at inter-quadrat distances of 1 to 100 m were calculated for four surveys, with eight pairs of transects swum in each survey. For all four surveys, inside two survey regions, spatial autocorrelation declined to non-significant levels at a distance of ~20 m. Quantified by the distance within which density counts are correlated, this quadrat-within-transect method provides a diver survey measure of the scale of spatial aggregation for sedentary invertebrates such as abalone, sea cucumbers and urchins.

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Kumar, Rajeev, Noel G. Cadigan, Nan Zheng, Divya A. Varkey, and M. Joanne Morgan. "A state-space spatial survey-based stock assessment (SSURBA) model to inform spatial variation in relative stock trends." Canadian Journal of Fisheries and Aquatic Sciences 77, no. 10 (October 2020): 1638–58. http://dx.doi.org/10.1139/cjfas-2019-0427.

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An age-structured, spatial survey-based assessment model (SSURBA) is developed and applied to the Grand Banks stock (NAFO Divisions 3LNO) of American plaice (Hippoglossoides platessoides) in Newfoundland and Labrador. The state-space model is fit to annual spatial (i.e., three divisions) stock size-at-age research vessel (RV) survey indices that are assumed to be proportional to abundance. We model index catchability (q) as a logistic function of fish length, which varies with age, cohort, and the time of the survey; therefore, the model facilitates the estimation of q values that change spatially and temporally following changes in fish growth and survey gears. The SSURBA model produces division-level estimates of fishing mortality rates (F), stock productivity, and stock size relative to the logistic catchability assumption with q = 1 for fully selected ages. The spatial model allows us to include additional survey information compared with the space-aggregated assessment model (all of 3LNO) that is currently used to assess stock status. The model can provide estimates of relative catch, which we compare with reported catch trends to partially validate the model.

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Heryanti, Oot Hotimah, and Ilham B. Mataburu. "The Movement Patterns of Tourist Destination Floating Market, Lembang, West Bandung Regency." Jurnal SPATIAL Wahana Komunikasi dan Informasi Geografi 19, no. 1 (October 14, 2019): 47–51. http://dx.doi.org/10.21009/spatial.191.07.

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This research aims to know the movement patterns of tourist destinationfloating market, Lembang, West Bandung Regency. The method used inthis research is descriptive method with a survey approach. The studylasted from June to July 2019. The indicators are (1) the number oftourist visits each tourist destination, (2) motivation of tourist visits, (3)length of stay, (4) modes of transportation, (5) accessibility to touristdestinations, (6) traveling experience, (7) number of travelingcompanions, (8) tourist attraction. The results showed tourists fromBanten Province tended to only make Multiple Patterns with the type ofChaining Loop and Stopover. The age of 17-30 years dominates the eraof tourists; these tourists do tours with their families as much as 100%.Tourists travel time from the origin area to tourist area is 4 to 5 hours, sotourists further shorten the time of visiting each destination anddestinations visited by more tourists.

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Wulder, Michael A., Joanne C. White, Allan L. Carroll, and Nicholas C. Coops. "Challenges for the operational detection of mountain pine beetle green attack with remote sensing." Forestry Chronicle 85, no. 1 (January 1, 2009): 32–38. http://dx.doi.org/10.5558/tfc85032-1.

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Mountain pine beetle infestations are spatially correlated; current (green) attack is often located near previous (red) attack. This spatial correlation between the green and red attack stages enables operational survey methods, as detection of red attack trees—typically from an airborne survey such as a helicopter GPS survey or aerial photography—guides the location of subsequent ground surveys for green attack trees. Forest managers, in an attempt to understand beetle movement and infestation patterns, hope to utilize remotely sensed data to detect and map green attack trees, with the expectation that the spatial extent, accuracy, and timeliness afforded by remotely sensed data will greatly improve the efficacy of beetle treatment and control. In this communication, we present the biological, logistical, and technological factors that limit the operational utility of remotely sensed data for green attack detection and mapping. To provide context for these limitations, we identify the operational information needs associated with green attack and discuss how these requirements dictate the characteristics of any potential remotely sensed data source (e.g., spatial, spectral, and temporal characteristics). Based upon our assessment, we conclude that the remote detection of green attack is not operationally viable, and is unlikely to become so unless the limiting factors we have identified are altered substantially or removed. Key words: green attack, remote sensing, operational, insect survey, high spatial resolution, high spectral resolution

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Kreitz, Marion, and Sean T. Doherty. "Spatial Behavioral Data: Collection and Use in Activity Scheduling Models." Transportation Research Record: Journal of the Transportation Research Board 1804, no. 1 (January 2002): 126–33. http://dx.doi.org/10.3141/1804-17.

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Transport models and their practical applications are becoming increasingly more sophisticated, thus requiring more precise input data, including spatial data. The development, testing, and assessment of a survey method with which to collect multiday information on activity–travel patterns with a high level of spatial detail and accuracy are described. The survey consists of a computer-assisted, self-completing weekly household activity-travel diary survey program combined with an interactive map for spatial data input and visualization. Compared with traditional paper-and-pencil surveys, more accurate spatial data is gathered through this survey, especially for activity locations, routes, and trip lengths, which a first trial on a small sample of 30 households clearly demonstrated. In addition, more details on activity and travel times were collected. Fatigue effects did not become evident, and the respondent burden was considered to be acceptable by the participants. Additional testing of the respondents’ map-handling abilities showed that people have different map-orientation aptitudes that depend on sociodemographic characteristics such as gender, income, and education. This suggests that maps incorporated in travel surveys should be adapted in different ways to accommodate different levels of map handling. Future household travel surveys, especially emerging computerized and Global Positioning System-supported methods, would appear to benefit from the integration of a spatial interface both to add detail and to reduce respondent burden. This is particularly important for activity-based or activity-scheduling surveys, which increasingly attempt to obtain higher amounts of precise and detailed information on individual behavior and choices.

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Sejati, Andri Estining, Muhammad Hasan, and Desi Nurul Hidayati. "Community Participation in Effort to Mitigate Caused by Mount Kelud Eruption in Ngancar District, Kediri Regency." Jurnal SPATIAL Wahana Komunikasi dan Informasi Geografi 19, no. 2 (December 31, 2019): 20–26. http://dx.doi.org/10.21009/spatial.192.3.

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Indonesia location is between four plates, there are: Eurasian, Indo-Australian, Philiphines, dan Pasicic. Subduction between plates make Indonesia disturbed a natural incident such as mountain eruption. One of disturbed mountain eruption disaster area is District Ngancar, Kediri Regency. This case because Ngancar location near Kelud slope. People participation for efforts mitigations is very important for reduced natural incident impact. The aim this paper to discuss form and level people participation in District Ngancar for efforts Kelud mountain eruption disaster mitigation. This research is survey with sample 100 from 5.340 head family. The data collected with interview and documentation, then analized by quantitative description with scoring and percentage. The research result showing that people in disaster disturbed zone I, II, and III get participation score each the amount of 1.425, 935, and 1.133. The participation action, include: elucidation disaster, organizing disaster preparedness, preparing self, making early warning system, and saving property.

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Klatt, Calvin, and Peter Johnson. "A Survey of Surveys: the Canadian Spatial Reference System Precise Point Positioning Service." GEOMATICA 71, no. 1 (March 2017): 27–36. http://dx.doi.org/10.5623/cig2017-103.

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Eldawy, Ahmed, and Mohamed F. Mokbel. "The Era of Big Spatial Data: A Survey." Foundations and Trends® in Databases 6, no. 3-4 (2016): 163–273. http://dx.doi.org/10.1561/1900000054.

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Small, Ronald L., Charles M. Oman, and Thomas D. Jones. "Space Shuttle Flight Crew Spatial Orientation Survey Results." Aviation, Space, and Environmental Medicine 83, no. 4 (April 1, 2012): 383–87. http://dx.doi.org/10.3357/asem.3180.2012.

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Rupa, B. "A Survey on Spatial Domain Image Enhancement Techniques." International Journal for Research in Applied Science and Engineering Technology 6, no. 4 (April 30, 2018): 302–7. http://dx.doi.org/10.22214/ijraset.2018.4054.

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Petitgas, Pierre, Martin Huret, Christine Dupuy, Jérôme Spitz, Matthieu Authier, Jean Baptiste Romagnan, and Mathieu Doray. "Ecosystem spatial structure revealed by integrated survey data." Progress in Oceanography 166 (September 2018): 189–98. http://dx.doi.org/10.1016/j.pocean.2017.09.012.

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Sipes, W. E., and C. S. Lessard. "A spatial disorientation survey of experienced instructor pilots." IEEE Engineering in Medicine and Biology Magazine 19, no. 2 (2000): 35–42. http://dx.doi.org/10.1109/51.827403.

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Temraz, Hesham K., and Victor H. Quintana. "Analytic spatial electric load forecasting methods: A survey." Canadian Journal of Electrical and Computer Engineering 17, no. 1 (January 1992): 34–42. http://dx.doi.org/10.1109/cjece.1992.6593905.

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Hill, Hal. "Spatial Disparities in Developing East Asia: a survey." Asian-Pacific Economic Literature 16, no. 1 (May 2002): 10–35. http://dx.doi.org/10.1111/1467-8411.t01-1-00002.

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吴, 萍萍. "Research on Spatial Co-Locations Mining: A Survey." Computer Science and Application 08, no. 03 (2018): 328–38. http://dx.doi.org/10.12677/csa.2018.83038.

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Garg, Nek R., and George V. Keller. "Spatial and temporal analysis of electromagnetic survey data." GEOPHYSICS 51, no. 1 (January 1986): 85–89. http://dx.doi.org/10.1190/1.1442042.

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Development of a relatively straightforward approach to interpretation of electromagnetic survey data when the earth in the vicinity of the survey has a complex geoelectric structure will be necessary before such methods can assume their full role in geophysical exploration. One‐dimensional interpretation methods have been well developed to extract the resistivity‐depth profile from a transient electromagnetic (TEM) sounding when the earth is assumed to be simply layered. Extension of the same methods to more complicated earth structures is difficult because of the tedious calculations involved when three‐dimensional earth structures are examined. An alternate approach could be use of the information contained in the spatial spectra of a set of sounding measurements. In such an approach, it should be possible to obtain a clearer concept of the geoelectric structure by analytic continuation of the electromagnetic field in space, or by heuristic filtering of the field, as is done in various potential field methods in geophysics. To try this concept, a filtering technique developed for treating magnetic data was applied to a set of TEM data acquired in the Snake River plain of Idaho. The results are reasonable, but insufficient control information is available to prove their significance. The effort has demonstrated that such a filtering approach can be done quickly, but it places demands on how the field data are sampled in the space domain.

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Hanaor, Ariel. "A Summary Survey of Prefabricated Spatial Frame Systems." International Journal of Space Structures 10, no. 3 (September 1995): 175–86. http://dx.doi.org/10.1177/026635119501000304.

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This article contains a summary of the characteristics of a large number of currently available commercial systems. The summary is presented in tabular form, corresponding to the hierarchical classification scheme presented in the second article in this issue. Features included in the summary table relate primarily to aspects of geometry, statical analysis and response, and assembly methods.

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Gu, Fuqiang, Xuke Hu, Milad Ramezani, Debaditya Acharya, Kourosh Khoshelham, Shahrokh Valaee, and Jianga Shang. "Indoor Localization Improved by Spatial Context—A Survey." ACM Computing Surveys 52, no. 3 (July 27, 2019): 1–35. http://dx.doi.org/10.1145/3322241.

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Dylla, Frank, Jae Hee Lee, Till Mossakowski, Thomas Schneider, André Van Delden, Jasper Van De Ven, and Diedrich Wolter. "A Survey of Qualitative Spatial and Temporal Calculi." ACM Computing Surveys 50, no. 1 (April 13, 2017): 1–39. http://dx.doi.org/10.1145/3038927.

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Brülhart, Marius. "The spatial effects of trade openness: a survey." Review of World Economics 147, no. 1 (December 16, 2010): 59–83. http://dx.doi.org/10.1007/s10290-010-0083-5.

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Ramírez Alfonsín, J. L. "Knots and links in spatial graphs: A survey." Discrete Mathematics 302, no. 1-3 (October 2005): 225–42. http://dx.doi.org/10.1016/j.disc.2004.07.035.

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Oznamets, V. V., and G. V. Belokonev. "Environmental spatial survey of the Nikitsky Botanical Garden." IOP Conference Series: Earth and Environmental Science 677, no. 5 (March 1, 2021): 052032. http://dx.doi.org/10.1088/1755-1315/677/5/052032.

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