Using a GIS to enhance grain size trend analysis

2010 ◽  
Vol 25 (4) ◽  
pp. 513-525 ◽  
Author(s):  
E. Poizot ◽  
Y. Méar
Keyword(s):  
Grain Size ◽  
Trend Analysis ◽  
Grain Size Trend Analysis

Sediment transport patterns on the Estremadura Spur continental shelf: Insights from grain-size trend analysis

2014 ◽  
Vol 93 ◽  
pp. 28-32 ◽  
Author(s):  
Maria Balsinha ◽  
Carlos Fernandes ◽  
Anabela Oliveira ◽  
Aurora Rodrigues ◽  
Rui Taborda
Keyword(s):  
Grain Size ◽  
Sediment Transport ◽  
Continental Shelf ◽  
Trend Analysis ◽  
Transport Patterns ◽  
Grain Size Trend Analysis

scholarly journals Análise morfotextural e aplicação de modelos de transporte de sedimentos na zona submersa adjacente a uma praia artificial em processo erosivo.

2009 ◽  
Vol 1 (1) ◽  
Author(s):  
Tatiana Pinheiro Dadalto ◽  
Jacqueline Albino
Keyword(s):  
Grain Size ◽  
Trend Analysis ◽  
Grain Size Trend Analysis

Este trabalho consistiu na aplicação de modelos de tendência granulométrica e de caracterização morfotextural da porção submersa adjacente à Praia da Curva da Jurema, Vitória, ES. Foram levantados dados batimétricos e granulométricos e aplicados os modelos GSTA (Grain-Size Trend Analysis) de Gao (1996) e GSTAST (Grain-Size Trend Analysis with Significant Test) de Chang et al. (2001), que vetorizam o transporte de sedimentos. Os modelos foram considerados válidos para esta área de estudo, uma vez que os vetores resultantes estão de acordo com o padrão de transporte mostrado pela caracterização morfotextural, que indica o transporte de sedimentos da praia rumo à área de maiores profundidades. A aplicação do GSTA mostrou-se mais satisfatória, uma vez que há a representação vetorial de todas as estações amostrais sem se distanciar do padrão morfotextural encontrado. Este trabalho representa uma grande contribuição ao estudo da análise de tendências granulométricas, pois mostra que a aplicação de modelos pode ser satisfatória em ambientes de grande dinamismo e em costas artificiais.

Characteristics of Grain Size Distribution on Beaches Sediment of Sumba Island, Nusa Tenggara Timur Based on Grainsize and Geochemical Data

2019 ◽  
Vol 20 (3) ◽  
pp. 153
Author(s):  
Septriono Hari Nugroho ◽  
Purna Sulastya Putra
Keyword(s):  
Grain Size ◽  
Trend Analysis ◽  
High Tide ◽  
Grain Size Analysis ◽  
Geochemical Data ◽  
Geochemical Analysis ◽  
Beach Sediment ◽  
Geochemical Elements ◽  
Coastal Deposits ◽  
Grain Size Trend Analysis

Study of beaches sediment characteristics were conducted on three beaches on Sumba Island, East Nusa Tenggara.The research is a part of Widya Nusantara Expedition which conducted by using Research Vessel of Baruna Jaya VIII. The aim of this study is to determine the characteristics of coastal deposits through the observation of grain size by using the grain size trend analysis approach (Grain Size Trend Analysis, commonly abbreviated as GSTA) and geochemical analysis. A total of 36 samples were taken on each coast representing high tide, transition and low tide along the coast. A grain size analysis was performed using a Malvern Mastersizer 2000 that was processed with Gradistat 4.0 software. Geochemical analysis was carried out using X-ray fluorescence spectrometry (XRF). The distribution of beach sediments is dominated by moderate sand - coarse sand and differences on content of geochemical elements (Ca, Sr, Fe, K, and Ti). The coastal conditions that are connected to the Indian Ocean (B1) have different characteristics from the beach that connected to the Sumba strait (B5 and B7). GSTA analysis showed sediment of Laboya Beach finer than sediment on Waikelo and Melolo Beach. Geochemical elements on Laboya Beach indicates different values than others. It indicates there are differences in the provenance and composition of sediment on the all three beaches. The supply of coastal deposits on these three beaches is influenced by the mechanism of precipitation of the walls and the processes of waves and rivers.Keywords: distribution, sediment, grainsize, geochemical, XRF, beach sediment.

Comments on “Confirmation of beach accretion by grain-size trend analysis: Camposoto beach, Cádiz, SW Spain” by E. Poizot et al. (2013) Geo-Marine Letters 33(4)

2013 ◽  
Vol 34 (1) ◽  
pp. 75-78 ◽  
Author(s):  
Juan J. Muñoz-Perez ◽  
Jorge Roman-Sierra ◽  
Marina Navarro-Pons ◽  
Maria da Graça Neves ◽  
Jose M. del Campo
Keyword(s):  
Grain Size ◽  
Trend Analysis ◽  
Sw Spain ◽  
Grain Size Trend Analysis

Sediment transport in the Luanhe River delta: grain size trend analysis

2019 ◽  
Vol 37 (3) ◽  
pp. 982-997 ◽  
Author(s):  
Xiaoxiao Yu ◽  
Tiegang Li ◽  
Dongqi Gu ◽  
Aiping Feng ◽  
Shihao Liu ◽  
...  
Keyword(s):  
Grain Size ◽  
Sediment Transport ◽  
Trend Analysis ◽  
River Delta ◽  
Grain Size Trend Analysis

scholarly journals Grain-Size Distribution of Surface Sediments in the Chanthaburi Coast, Thailand and Implications for the Sedimentary Dynamic Environment

2020 ◽  
Vol 8 (4) ◽  
pp. 242 ◽  
Author(s):  
Chengtao Wang ◽  
Min Chen ◽  
Hongshuai Qi ◽  
Wichien Intasen ◽  
Apichai Kanchanapant
Keyword(s):  
Grain Size ◽  
Standard Deviation ◽  
Trend Analysis ◽  
Size Distribution ◽  
Grain Size Distribution ◽  
Surface Sediments ◽  
Sedimentary Environment ◽  
Hydrodynamic Conditions ◽  
Deviation Analysis ◽  
Grain Size Trend Analysis

This paper analyzes the grain-size distribution of surface sediments of the Chanthaburi coast of Thailand to investigate the sedimentary environment and its evolution to better use and protect the coast. The Flemming triangle method, the grade-standard deviation method, and the Gao–Collins grain-size trend analysis method (GSTA model) were used to study the dynamic sedimentary environment of the area and provide preliminary identification of source materials. There are seven types of surface sediments on this coast, with grain sizes (φ) generally consisting of sand and silt. Sorting is generally poor, and becomes gradually poorer with distance offshore. Skewness is generally positive. The study area is mainly composed of sand and silt, indicating that the hydrodynamics are strong. The results of grade-standard deviation analysis indicate that sediment grain size b (3.25–4.5φ) is a sensitive indicator of environmental change. This sediment type exhibits a relatively complex transport trend, mainly characterized by northwestward and northeastward transport from sea to land. Sediments at the mouth of the Chanthaburi Estuary and the Welu River fluctuate under the influence of tidal currents. Based on the results of grade-standard deviation analysis and grain-size trend analysis, the study area was divided into three provinces, representing different sedimentary environments and material sources. Compared with tidal-controlled estuaries in the temperate regions of eastern China, the two tropical estuaries examined in this study exhibited smaller suspended sediment loads, runoff amounts, and tidal ranges. However, hydrodynamic conditions were generally stronger. The main reasons for the similarities and differences in the transport trends of sediments in these estuaries were differences in hydrodynamic conditions and the specifics of regional topography.

Sign in / Sign up

Export Citation Format

Share Document