scholarly journals Ontogeny of a subtidal point bar in the microtidal Venice Lagoon (Italy) revealed by three‐dimensional architectural analyses

Sedimentology ◽  
2021 ◽  
Author(s):  
Elena Bellizia ◽  
Sandra Donnici ◽  
Fantina Madricardo ◽  
Alvise Finotello ◽  
Andrea D’Alpaos ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Venice Lagoon ◽  
Point Bar

scholarly journals Modeling of dense well block point bar architecture based on geological vector information: A case study of the third member of Quantou Formation in Songliao Basin

2021 ◽  
Vol 13 (1) ◽  
pp. 39-48
Author(s):  
Chao Luo ◽  
Ailin Jia ◽  
Jianlin Guo ◽  
Wei Liu ◽  
Nanxin Yin ◽  
...  
Keyword(s):  
River Sediments ◽  
Three Dimensional ◽  
Songliao Basin ◽  
Point Bar ◽  
Meandering River ◽  
Architecture Model ◽  
The Third ◽  
Continuous Convergence ◽  
Vector Information ◽  
Architecture Modeling

Abstract Although stochastic modeling methods can achieve multiple implementations of sedimentary microfacies model in dense well blocks, it is difficult to realize continuous convergence of well spacing. Taking the small high-sinuosity meandering river sediments of the third member of Quantou Formation in Songliao Basin as an example, a deterministic modeling method based on geological vector information was explored in this article. Quantitative geological characteristics of point bar sediments were analyzed by field outcrops, modern sediments, and dense well block anatomy. The lateral extension distance, length, and spacing parameters of the point bar were used to quantitatively characterize the thickness, dip angle, and frequency of the lateral layer. In addition, the three-dimensional architecture modeling of the point bar was carried out in the study. The established three-dimensional architecture model of well X24-1 had continuous convergence near all wells, which conformed to the geological knowledge of small high-sinuosity meandering river, and verified the reliability of this method in the process of geological modeling in dense well blocks.

Tidal currents and wind waves controlling sediment distribution in a subtidal point bar of the Venice Lagoon (Italy)

Sedimentology ◽  
2019 ◽  
Vol 66 (7) ◽  
pp. 2926-2949 ◽  
Author(s):  
Massimiliano Ghinassi ◽  
Andrea D'Alpaos ◽  
Laura Tommasini ◽  
Lara Brivio ◽  
Alvise Finotello ◽  
...  
Keyword(s):  
Wind Waves ◽  
Venice Lagoon ◽  
Tidal Currents ◽  
Point Bar ◽  
Sediment Distribution

scholarly journals New evidence of a Roman road in the Venice Lagoon (Italy) based on high resolution seafloor reconstruction

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fantina Madricardo ◽  
Maddalena Bassani ◽  
Giuseppe D’Acunto ◽  
Antonio Calandriello ◽  
Federica Foglini
Keyword(s):  
High Resolution ◽  
Transport System ◽  
Three Dimensional ◽  
Dynamic Environments ◽  
Venice Lagoon ◽  
Stable System ◽  
Archaeological Research ◽  
Complex Dynamic ◽  
Architectural Reconstruction ◽  
New Evidence

AbstractThis study provides new evidence of the presence of an ancient Roman road in correspondence to a paleobeach ridge now submerged in the Venice Lagoon (Italy). New high resolution underwater seafloor data shed new light on the significance of the Roman remains in the lagoon. The interpretation of the data through archive and geo-archaeological research allowed a three-dimensional architectural reconstruction of the Roman road. The presence of the ancient Roman road confirms the hypothesis of a stable system of Roman settlements in the Venice Lagoon. The study highlights the significance of this road in the broader context of the Roman transport system, demonstrating once more the Roman ability to adapt and to handle complex dynamic environments that were often radically different from today.

Three-dimensional analysis of the Plio-Pleistocene seismic sequences in the Venice Lagoon (Italy)

2012 ◽  
Vol 169 (5) ◽  
pp. 507-510 ◽  
Author(s):  
Luigi Tosi ◽  
Pietro Teatini ◽  
Giuliano Brancolini ◽  
Massimo Zecchin ◽  
Laura Carbognin ◽  
...  
Keyword(s):  
Dimensional Analysis ◽  
Three Dimensional ◽  
Venice Lagoon ◽  
Seismic Sequences

Architectural Structure of Channel Sand Bodies in Meandering River and Remaining Oil Tapping Study-as on PI2a of South-Two Area in Sanan Field

2011 ◽  
Vol 361-363 ◽  
pp. 8-14
Author(s):  
Zong Bao Liu ◽  
He Bi
Keyword(s):  
Quantitative Research ◽  
Single Point ◽  
Three Dimensional ◽  
Three Dimensional Model ◽  
Point Bar ◽  
Verification Methods ◽  
Remaining Oil ◽  
Point Bars ◽  
And Performance ◽  
Sand Bodies

According to the theory of reservoir architectural structure and sedimentology, applied the hierarchy analysis, pattern guidance and performance verification methods, taking the South-Two area for example, with the cores, logs and performance, we have done some quantitative research on the parameters of composite channel sand bodies, single point bar sand bodies and the lateral accretion bodies on point bars in South two area, built Three-dimensional model of point bars. Study shows that the point bar sand bodies in PI2a unit are meandering point bar sand bodies formed by the lateral accretion of distributary channels in coastal delta distributary plain. The space combination model of lateral accretion bodies is horizontal-obique type. The width of lateral accretion bodies is 38.5～54m, the average dip of lateral accretion layer is 9.5°, and separation of lateral accretion layer is about 15m. The features above shows the spatial distribution of the lateral accretion body on point bars. With the changes of seepage field and gravity, the influence to remaining oil of lateral accretion layer has been analyzed. Numerical simulation and performance showed that the main concentration of remaining oil is in the upper of the point bar lateral accretion body, proposed the principles and methods of horizontal wells in the point bar sand bodies to tapping potential remaining oil, which provide a theoretical guidance to domestic similar fine reservoir description and the remaining oil tapping.

Aggradation and lateral migration shaping geometry of a tidal point bar: An example from salt marshes of the Northern Venice Lagoon (Italy)

2016 ◽  
Vol 343 ◽  
pp. 141-155 ◽  
Author(s):  
Lara Brivio ◽  
Massimiliano Ghinassi ◽  
Andrea D'Alpaos ◽  
Alvise Finotello ◽  
Alessandro Fontana ◽  
...  
Keyword(s):  
Salt Marshes ◽  
Venice Lagoon ◽  
Lateral Migration ◽  
Point Bar

The Shengli I Point Bar on the Yellow River Delta: Three-Dimensional Structures and Their Evolution

2002 ◽  
Vol 76 (4) ◽  
pp. 463-477 ◽  
Author(s):  
ZHONG Jianhua ◽  
SHEN Xiaohua ◽  
NI Jinren ◽  
WANG Guanmin ◽  
WEN Zhifeng ◽  
...  
Keyword(s):  
Yellow River ◽  
Three Dimensional ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Point Bar ◽  
The Yellow River Delta

scholarly journals Mapping Maize Evapotranspiration at Field Scale Using SEBAL: A Comparison with the FAO Method and Soil-Plant Model Simulations

2018 ◽  
Vol 10 (9) ◽  
pp. 1452 ◽  
Author(s):  
Carla Grosso ◽  
Gabriele Manoli ◽  
Marco Martello ◽  
Yann Chemin ◽  
Diego Pons ◽  
...  
Keyword(s):  
Spatial Scales ◽  
Three Dimensional ◽  
Venice Lagoon ◽  
Landsat Images ◽  
Root Characteristics ◽  
Plant Model ◽  
Food And Agriculture ◽  
Food And Agriculture Organization ◽  
Spatially Distributed ◽  
Good Agreement

The surface energy balance algorithm for land (SEBAL) has been successfully applied to estimate evapotranspiration (ET) and yield at different spatial scales. However, ET and yield patterns have never been investigated under highly heterogeneous conditions. We applied SEBAL in a salt-affected and water-stressed maize field located at the margin of the Venice Lagoon, Italy, using Landsat images. SEBAL results were compared with estimates of evapotranspiration by the Food and Agriculture Organization (FAO) method (ETc) and three-dimensional soil-plant simulations. The biomass production routine in SEBAL was then tested using spatially distributed crop yield measurements and the outcomes of a soil-plant numerical model. The results show good agreement between SEBAL evapotranspiration and ETc. Instantaneous ET simulated by SEBAL is also consistent with the soil-plant model results (R2 = 0.7047 for 2011 and R2 = 0.6689 for 2012). Conversely, yield predictions (6.4 t/ha in 2011 and 3.47 t/ha in 2012) are in good agreement with observations (8.64 t/ha and 3.86 t/ha, respectively) only in 2012 and the comparison with soil-plant simulations (8.69 t/ha and 5.49 t/ha) is poor. In general, SEBAL underestimates land productivity in contrast to the soil-plant model that overestimates yield in dry years. SEBAL provides accurate predictions under stress conditions due to the fact that it does not require knowledge of the soil/root characteristics.

scholarly journals An integrated approach to determine three‐dimensional accretion geometries of tidal point bars: Examples from the Venice Lagoon (Italy)

Sedimentology ◽  
2020 ◽  
Vol 68 (1) ◽  
pp. 449-476 ◽  
Author(s):  
Marta Cosma* ◽  
Na Yan ◽  
Luca Colombera ◽  
Nigel P. Mountney ◽  
Andrea D’Alpaos ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Integrated Approach ◽  
Venice Lagoon ◽  
Point Bars
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