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Dissertations / Theses on the topic 'Terrain attributes'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Crosby, David Alexander. "The Effect of DEM Resolution on the Computation of Hydrologically Significant Topographic Attributes." Scholar Commons, 2006. http://scholarcommons.usf.edu/etd/3859.

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Terrain attributes computed from Digital Elevation Models (DEMs) are widely used in hydrology and hydrologic modeling. It is important to consider that the values of the attributes can be different depending on the resolution of the DEM from which they are derived. The question arises as to how much exactly the high-resolution DEMs created through LIDAR remote sensing techniques change the values of the terrain attributes when compared to lower resolution DEMs.In this thesis a LIDAR-derived DEM of 20 feet resolution was resampled using a nearest-neighbour algorithm to various coarser resolutio

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2

Pike, Adam Clellon. "ASSESSMENT OF TERRAIN ATTRIBUTE MODELS FOR THE IDENTIFICATION OF EROSION PRONE AREAS SUITABLE FOR THE ESTABLISHMENT OF GRASSED WATERWAYS IN AN AGRICULTURAL FIELD SETTING IN THE OUT BLUEGRASS REGION OF KENTUCKY." UKnowledge, 2008. http://uknowledge.uky.edu/gradschool_theses/544.

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The speed and accuracy of conservation planning could be improved if maps indicating areas where grassed waterways should be placed to reduce erosion could be easily created. For five central Kentucky fields, elevation data were obtained with real time kinematic (RTK) global positioning system (GPS) and from US Geological Survey (USGS) digital elevation models (DEMs). Terrain attributes were calculated from these datasets which were used as predictor variables for neural network and logistic regression analyses. Grassed waterway prediction models were developed with these analyses. The type of

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3

Matcham, Emma Grace. "Identifying Soil and Terrain Attributes that Predict Changes in Local Ideal Seeding Rate for Soybean [Glycine Max (L.) Merr.]." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1554475109598299.

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4

Bohn, Meyer Patrick. "Predicting Soil Health and Function of the Barnes Catena Using Evapotranspiration, Vegetative, Geologic, and Terrain Attributes in the Eastern Glaciated Plains of North Dakota." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/28726.

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The benchmark Barnes soil series is an extensive northern Great Plains upland Hapludoll that is vital to the region. Accelerated erosion has degraded Barnes agricultural soil quality, but with unknown extent or severity. Samples from three extensive Barnes soil map units, stratified by evapotranspiration values, were collected to 50 cm and analyzed for chemical, morphologic, and physical properties germane to edaphic function. Multi-scale terrain attributes and remote-sensed soil proxies, and geologic covariates were implemented with Cubist to model soil properties. Best models included SOC, E

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5

Wolski, Mario Sergio. "Modelagem do terreno e mapeamento digital de solos por extrapolação das relações solo-paisagem." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/3379.

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Research on digital soil mapping (DSM) in Brazil is subject to the existence of legacy soil data obtained through conventional methods for extrapolation of soil-landscape relations. In areas with no available soil maps, it is necessary to develop methodologies for the acquisition of these data in a scale compatible with the needs of the users. In this context, the main objective of this study was to develop a methodology, through techniques of DSM, to predict soil classes at semidetailed level, in a region of gently undulating relief delimited by a topographic map in a scale of 1:50,000. Techn

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6

Bueno, Jean Michel Moura. "Modelos digitais de elevação e predição do carbono orgânico do solo no planalto do Estado do Rio Grande do Sul." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/5613.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The requirement for quantitative soil information has increased as a consequence of the global scenarios. The digital soil mapping (DSM) seeks to produce consistent data with the current needs through the generation of functional soil maps in multi-scales. The aim of this study was to evaluate the altimetry quality and limitations of digital elevation model (DEM) in order to assist in choosing the most suitable DEM to derive terrain attributes (TA) to develop spatial prediction functions to be applied to digital mapping of soil org

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7

Lopes, Paulo Maurício Silva. "Estudo dos atributos do meio físico como base para o zoneamento geoambiental das bacias do rio Passa Cinco e rio da Cabeça: escala 1:50.000." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-19102018-200138/.

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O presente trabalho consistiu no estudo de uma série de atributos do meio físico, como geologia, pedologia, materiais inconsolidados, declividade e menor extensão do percurso da água superficial, entre outros, representados na escala 1:50.000 referentes às bacias hidrográficas dos rios Passa Cinco e Cabeça. Tais atributos foram avaliados, considerando as restrições e potencialidades do meio, buscando uma melhor elaboração das propostas e procedimentos adotados na manutenção da qualidade do meio físico. Para a realização deste estudo, foram utilizados trabalhos já desenvolvidos na área, assim c

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8

Shaffer, Jared M. "The Effects of Spatial Resolution on Digital Soil Attribute Mapping." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1374004706.

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9

Silva, Carlos Roberto Santos da. "ESTUDO DAS CARACTERÍSTICAS FÍSICO-QUÍMICAS DO SOLO EM PLANTIO DE ERVA-MATE (Ilex paraguariensis St. Hil.) ATRAVÉS DA GEOESTATÍSTICA E DO GEOPROCESSAMENTO." Universidade Federal de Santa Maria, 2007. http://repositorio.ufsm.br/handle/1/9497.

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This work was based in methods of classic descriptive statistics, methods of geostatistics and geoprocessing, in the identification of the size and the structure of the spatial variability of the physical and chemical attributes of the soil in area of Paraguay Tea forestry. The area of study, localized in the Tupian Farm, in the municipality of New Silver, RS, where were raised samples from January to March, 2005, embracing the Latosoil humic dystrophic soil. It was accomplished systematic sample with grid of regular spacing among the one hundred meter points, totalizing thirty-six sample po

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10

Emran, Khaled Abd El Aziz Mohamed. "A multiapproach study of soil attributes under land use and cover change at the Cap de Creus Península, NE Spain." Doctoral thesis, Universitat de Girona, 2012. http://hdl.handle.net/10803/98404.

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The work presented in this Doctoral Thesis has studied the temporal and spatial patterns of the most relevant soil parameters with special attention posed to soil biological and biochemical dynamics occurring at the studied soils in a very fragile area at Cap de Creus Peninsula, NE Spain. The main objective was to establish evidence of soil quality through the study of soil carbon dynamics (loss and storage) and their interactions with soil ecosystems. Soil environments were classified in terms of degree of soil quality, relating soil properties with plant cover species, especially along a seq

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11

Gaspareto, Marinaldo José. "SELEÇÃO DE ATRIBUTOS EM IMAGENS COLETADAS SOB CONDIÇÕES DE ILUMINAÇÃO NÃO CONTROLADA E SUA INFLUÊNCIA NO DESEMPENHO DE CLASSIFICADORES NAIVE BAYES PARA IDENTIFICAÇÃO DE OBJETOS EM ESTUFAS AGRÍCOLAS." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2013. http://tede2.uepg.br/jspui/handle/prefix/172.

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Made available in DSpace on 2017-07-21T14:19:40Z (GMT). No. of bitstreams: 1 Marinaldo Gaspareto.pdf: 1456191 bytes, checksum: ffaf0b449c6b9d107bdf1946a4619315 (MD5) Previous issue date: 2013-09-10<br>A problem regarding the implementation of navigation systems for autonomous moving robots is to detect the objects of interest and obstacles which are in the environment. This study considers the detection of walls / low walls of agricultural greenhouses in digital images obtained without illumination control. The proposed approach employs techniques of digital image processing and digital clas

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12

Ribeiro, Lamark dos Santos. "Uma abordagem semântica para seleção de atributos no processo de KDD." Universidade Federal da Paraíba, 2010. http://tede.biblioteca.ufpb.br:8080/handle/tede/6048.

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Made available in DSpace on 2015-05-14T12:36:27Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 2925122 bytes, checksum: e65ad4a8f7ca12fb8a90eaf2a8783d65 (MD5) Previous issue date: 2010-08-27<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Currently, two issues of great importance for the computation are being used together in an increasingly apparent: a Knowledge Discovery in Databases (KDD) and Ontologies. By developing the ways in which data is stored, the amount of information available for analysis has increased exponentially, making it necessary techniques to analyze d

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13

Costa, Junior Jose Roberto. "Atribui??o de significado ao conceito de proporcionalidade: contribui??es da hist?ria da matem?tica." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16063.

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Made available in DSpace on 2014-12-17T15:04:54Z (GMT). No. of bitstreams: 1 JoseRCJ_DISSERT.pdf: 1758166 bytes, checksum: 84702b406264dc71be3f28054ea10c9a (MD5) Previous issue date: 2010-05-31<br>This study is the result of a work which approaches the Mathematics History how source of the meaning s attribution in the proportionality concept. We adopt the methodology of the source qualitative and we work with a group of teachers from instruction s public system of the fundamental and medium level from Pocinhos City Para?ba. For the data collection, we use the field notes, the questionnaire

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14

Silva, Lenilson Pereira da. "Ajuste preventivo versus ajuste corretivo no controle on-line de processo do n?mero de n?o-conformidades num item inspecionado." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18637.

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Made available in DSpace on 2015-03-03T15:28:32Z (GMT). No. of bitstreams: 1 LenilsonPS_DISSERT.pdf: 421189 bytes, checksum: 22f993fe2b8033189672f2dec900232c (MD5) Previous issue date: 2010-06-15<br>In production lines, the entire process is bound to unexpected happenings which may cost losing the production quality. Thus, it means losses to the manufacturer. Identify such causes and remove them is the task of the processing management. The on-line control system consists of periodic inspection of every month produced item. Once any of those items is quali ed as not t, it is admitted

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15

Grübler, Murillo da Silveira. "IMBEDS: serviço inteligente para gerenciamento de leitos, utilizando ciência de situação." Universidade do Vale do Rio dos Sinos, 2016. http://www.repositorio.jesuita.org.br/handle/UNISINOS/5897.

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Submitted by Silvana Teresinha Dornelles Studzinski (sstudzinski) on 2016-11-03T11:54:04Z No. of bitstreams: 1 Murillo da Silveira Grübler_.pdf: 3027339 bytes, checksum: 2fdb175c76ab90e275bf8ba04792e452 (MD5)<br>Made available in DSpace on 2016-11-03T11:54:04Z (GMT). No. of bitstreams: 1 Murillo da Silveira Grübler_.pdf: 3027339 bytes, checksum: 2fdb175c76ab90e275bf8ba04792e452 (MD5) Previous issue date: 2016-08-19<br>CNPQ – Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>O Gerenciamento de Leitos é uma importante área de planejamento e controle hospitalar. Sua função é

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16

Rodrigues, Renata Mendon?a. "Controle on-line para o n?mero de n?o-conformidades em um ?tem inspecionado." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18628.

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Made available in DSpace on 2015-03-03T15:22:32Z (GMT). No. of bitstreams: 1 RenataMR.pdf: 665159 bytes, checksum: 6d95fdc9fbeffbdaabe5793488839df3 (MD5) Previous issue date: 2009-03-02<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The on-line processes control for attributes consists of inspecting a single item at every m produced ones. If the examined item is conforming, the production continues; otherwise, the process stops for adjustment. However, in many practical situations, the interest consist of monitoring the number of non-conformities among the examined item

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17

Goulden, Tristan. "SENSITIVITY OF TERRAIN ATTRIBUTES, WATERSHED ATTRIBUTES, AND SWAT DERIVED HYDROLOGICAL OUTPUTS TO LIDAR DERIVED DEM UNCERTAINTY." 2013. http://hdl.handle.net/10222/38534.

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This research analyzes the sensitivity of watershed attributes, and hydrological outputs to LiDAR derived DEM uncertainty introduced through spatial resolution, and LiDAR measurement errors. Sensitivity of watershed attributes to spatial resolution was determined through a scaling analysis at three sites; Mosquito Creek, Scotty Creek and Thomas Brook, with DEMs ranging from 1 to 50 m. Results at Scotty Creek showed the highest sensitivity of watershed area to spatial resolution, due to subtle changes in elevation which were below DEM uncertainty. Validation of the stream length at Thomas Brook

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18

Choi, Seok Cheol. "Determination of network attributes from a high resolution terrain data base." Thesis, 1987. http://hdl.handle.net/10945/22740.

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19

Guerra, Larry C. "Predicting evapotranspiration and soil moisture distribution from terrain attributes and weather." Phd thesis, 1995. http://hdl.handle.net/1885/138808.

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20

Grundling, Althea Theresa. "Remote sensing and biophysical monitoring of vegetation, terrain attributes and hydrology to map, characterise and classify wetlands of the Maputaland Coastal Plain, KwaZulu-Natal, South Africa." Thesis, 2014. http://hdl.handle.net/10012/8457.

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The Maputaland Coastal Plain is situated in north-eastern KwaZulu-Natal Province, South Africa. The Maputaland Coastal Plain and underlying aquifer are two separate but inter-linked entities. This area with high permeable cover sands, low relief and regional geology that slopes towards the Indian Ocean, hosts a variety of important wetlands in South Africa (e.g. 66% of the recorded peatlands). The wetlands overlie and in some cases also connect to the underlying regional water-table. The apparent distribution of wetlands varies in response to periods of water surplus or drought, and over the l

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21

Rivera, Leonardo Daniel. "Systematic Variability of Soil Hydraulic Conductivity Across Three Vertisol Catenas." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-08-8203.

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Soil hydraulic properties, such as saturated hydraulic conductivity (Ks), have high spatial variation, but little is known about how to vary a few measurements of Ks over an area to model hydrology in a watershed with complex topography and multiple land uses. Variations in soil structure, macropores (especially in soil that shrink and swell), land use, and soil development can cause large variations in Ks within one soil type. Characterizing the impacts of soil properties that might vary systematically with land use and terrain attributes on Ks rates would provide insight on how management an

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22

(8300103), Shams R. Rahmani. "Digital Soil Mapping of the Purdue Agronomy Center for Research and Education." Thesis, 2020.

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This research work concentrate on developing digital soil maps to support field based plant phenotyping research. We have developed soil organic matter content (OM), cation exchange capacity (CEC), natural soil drainage class, and tile drainage line maps using topographic indices and aerial imagery. Various prediction models (universal kriging, cubist, random forest, C5.0, artificial neural network, and multinomial logistic regression) were used to estimate the soil properties of interest.

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