A systematic overview of the coincidences of river sinuosity changes and tectonically active structures in the Pannonian Basin

Petrovszki, J.; Székely, Balázs; Timár, Gábor

doi:10.1016/j.gloplacha.2012.08.005

Cited by 30 publications

(16 citation statements)

References 26 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The river sinuosity (R) has been calculated for the trunk channels of three basins and their sub-basins as they may help interpret and distinguish fluvial-tectonic dynamics (Petrovszki, Székely, & Timár, 2012). The Cauvery Basin has 33 seventh-order streams.…”

Section: River Sinuosity (R)mentioning

confidence: 99%

Tectono‐morphological evolution of the Cauvery, Vaigai, and Thamirabarani River basins: Implications on timing, stratigraphic markers, relative roles of intrinsic and extrinsic factors, and transience of Southern Indian landscape

et al. 2019

View full text Add to dashboard Cite

Peninsular India is an amalgam of transient landscapes evolved from the interactions between tectonic and climatic forcings. In order to appraise the tectono‐geomorphic evolution of South India, it is essential to understand the relationships between intrinsic and extrinsic processes and their geomorphic expressions at a river basin scale. Seven geomorphometric parameters, namely, longitudinal profile (Lp), asymmetry factor (Af), hypsometric curve and hypsometric integral (HI), mountain front sinuosity (Smf), river sinuosity (R), stream length gradient (Sl), and shape factor (Shp) were calculated for selected drainage basins of South India. Spatial analyses of these parameters in the light of systematic field mapping were attempted in this study. The results show the occurrences of southern sub‐basins with convex hypsometric curves indicating a youth stage and significant tectonic influence. The low and moderate Smf values within the basins are indicative of mountain fronts witnessing a high level of tectonic activity. The net effects of tectonic and geomorphometric processes are inferred to have been the responses of anti‐clockwise rotation of the Indian Plate and ridge uplift‐push from west. Directional change in Thamirabarani River Basin and drainage channel reorganizations in the Cauvery and Vaigai River basins stand testimony to these, among others. Amidst these, occurrences of tectonically quiescent regions and multiple incisions by river channels and flow of modern river channels in inherited palaeovalleys but on tangent directions of ancient flows are also observed. Five stages of landscape development are envisaged: First, inheritance of river basins from palaeodrainage systems; second, reversal of river flow directions during early part of Cenozoic and inception of evolution of modern river systems; third, during Miocene–Pliocene; fourth, during Pleistocene–Early Holocene; and fifth, during the Holocene–Anthropocene. The recent resurgence of tectonics is not only reflected in the shifting of axial rivers, but is also evidenced by seismicity and landslides/faulting. Together, transient nature of the Southern Indian Plate, first‐order control of tectonics, followed by climate and lithology over landscape evolution, inheritance of river valleys, synonymy of river basin responses to intrinsic and extrinsic geomorphic processes, however with unique signatures and basin‐scale responses, are inferred. Detailed morphometric studies and supplementation with precise age data may fine‐tune the proposed model. According to the model, inheritance of Mesozoic valley/structures during Late Jurassic–Early Cretaceous, drainage reversal and initiation of Cenozoic–Recent river basin evolution, intense peneplanation during Miocene–Pliocene, intense incision during Pleistocene, periodic climatic extremes during Early Cenozoic, Palaeocene–Eocene, Oligocene and corresponding pedogenesis, and terrace formation and sedimentation have been recognized. Based on the numerical ages and documentation of basin‐scale distribution of s...

show abstract

Section: River Sinuosity (R)mentioning

confidence: 99%

Tectono‐morphological evolution of the Cauvery, Vaigai, and Thamirabarani River basins: Implications on timing, stratigraphic markers, relative roles of intrinsic and extrinsic factors, and transience of Southern Indian landscape

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Some of these studies remain in the geomorphology domain (Petrovszki et al, 2012;Petrovszki and Timár, 2010;Timár, 2003;Szabó et al, 2004;Timár et al, 2001), but cases exist where human influence is taken into account (Comiti et al, 2011;Ziliani and Surian, 2012;Kiss et al, 2008) or water resource management is the question in focus (Timár and Gábris, 2008;Craciunescu et al, 2010;Day et al, 1990;Zlinszky andMolnár, 2008, 2009). Based on the interpretation of historic maps, ecological changes caused by human interventions in river and lake systems can also be quantified (Bravard et al, 1986;Dömötörfy et al, 2003;Comiti et al, 2011;Gimmi et al, 2011).…”

Section: Breakthrough 3: Digital Georeferencing Processing and Distrmentioning

confidence: 99%

Historic maps as a data source for socio-hydrology: a case study of the Lake Balaton wetland system, Hungary

Zlinszky

Timár

2013

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. Socio-hydrology is the science of human influence on hydrology and the influence of the water cycle on human social systems. This newly emerging discipline inherently involves a historic perspective, often focusing on timescales of several centuries. While data on human history is typically available for this time frame, gathering information on the hydrological situation during such a period can prove difficult: measured hydrological data for such long periods are rare, while models and secondary data sets from geomorphology, pedology or archaeology are typically not accurate enough over such a short time. In the first part of this study, the use of historic maps in hydrology is reviewed. Major breakthroughs were the acceptance of historic map content as valid data, the use of preserved features for investigating situations earlier than the map, and the onset of digital georeferencing and data integration. Historic maps can be primary quantitative sources of hydro-geomorphological information, they can provide a context for point-based measurements over larger areas, and they can deliver time series for a better understanding of change scenarios.In the second part, a case study is presented: water level fluctuations of Lake Balaton were reconstructed from maps, levelling logs and other documents. An 18th century map system of the whole 5700 km 2 catchment was georeferenced, integrated with two 19th century map systems, and wetlands, forests and open water digitized. Changes in wetland area were compared with lake water level changes in a 220 yr time series. Historic maps show that the water level of the lake was closer to present-day levels than expected, and that wetland loss pre-dates drainage of the lake.The present and future role of historic maps is discussed. Historic hydrological data has to be treated with caution: while it is possible to learn form the past, the assumption that future changes will be like past changes does not always hold. Nevertheless, old maps are relatively accessible data sets and the knowledge base for using them is rapidly growing, and it can be expected that long-term time series will be established by integrating georeferenced map systems over large areas.In the Appendix, a step-by-step guide to using historic maps in hydrology is given, starting from finding a map, through georeferencing and processing the map to publication of the results.

show abstract

“…Segundo este autor, a mudança de estilo meandrante para anastomosado foi associada à ascensão do nível de base regional, em função da subida do nível do mar e/ou movimentos tectônicos. Outros estudos (Fredsoe, 1978;Crosato e Mosselman, 2009;Petrovszki et al, 2012) relacionam esta mudança à declividade, velocidade, largura e profundidade dos canais. Parte do padrão de drenagem do sistema fluvial Solimões-Amazonas está condicionada a lineamentos tectônicos e falhas, com direções preferenciais N-S, E-W, ENE-WSW, NE-SW e NW-SE, descritos em diversos estudos (Sternberg, 1950;Franzinelli e Latrubesse, 1993;Costa et al, 1996;Bemerguy, 1997;Franzinelli e Igreja, 1990;Igreja et al, 1990;Igreja, 1999;Gonzaga et al, 2000;Latrubesse e Franzinelli, 2002;Riccomini et al, 2012;Silva et al, 2007;Ibanez et al, 2014, entre outros).…”

Section: Contexto Geológicounclassified

Análise multitemporal do sistema fluvial Solimões-Amazonas entre os tributários Purus e Negro, Amazônia Ocidental, Brasil

Passos

Soares

2017

Geol. USP. Sér. Cient.

View full text Add to dashboard Cite

Nas últimas décadas, as feições geomorfológicas de trechos do sistema fluvial Solimões-Amazonas têm sido estudadas por meio de imagens de sensores remotos, aliados a dados de análise multitemporal, destacando principalmente as modificações morfológicas das planícies aluviais e canais deste sistema. Os primeiros estudos utilizavam bases cartográficas de menor precisão em comparação às atuais e não consideravam alguns fatores como a cota dos rios, tipos de sensores e imprecisões na aquisição dos dados, o que diminui a acurácia dos dados. Atualmente, dentre os fatores mais enfatizados na análise desse sistema fluvial, destacam-se a taxa de migração dos canais e a definição do estilo fluvial em diferentes trechos, que variam entre os tipos mais conhecidos na literatura. Este trabalho demonstra por meio da análise multitemporal de imagens Landsat-5/TM a fase final de evolução do sistema fluvial Solimões-Amazonas, no trecho entre os tributários Purus e Negro, no decorrer dos anos de 1991 e 2011. As interpretações indicam leve predominância dos processos deposicionais em relação aos erosivos no trecho analisado, com áreas de 8,56 km2 e 6,86 km2, respectivamente, obtendo-se assim uma taxa de migração média de 0,32%/ano. Os processos deposicionais se concentram principalmente na parte convexa dos meandros e nas áreas a jusante das ilhas, incluindo a formação de novas ilhas, e os erosivos na parte côncava dos meandros e a montante das ilhas. Apesar da dinâmica de erosão e deposição observada no trecho estudado deste sistema, foi possível constatar o elevado padrão de estabilidade dos canais, o qual é coerente com dados batimétricos e de taxa de migração de estudos geológicos regionais, que ajudam a caracterizar o atual estilo fluvial anabranching.

show abstract

A systematic overview of the coincidences of river sinuosity changes and tectonically active structures in the Pannonian Basin

Cited by 30 publications

References 26 publications

Tectono‐morphological evolution of the Cauvery, Vaigai, and Thamirabarani River basins: Implications on timing, stratigraphic markers, relative roles of intrinsic and extrinsic factors, and transience of Southern Indian landscape

Tectono‐morphological evolution of the Cauvery, Vaigai, and Thamirabarani River basins: Implications on timing, stratigraphic markers, relative roles of intrinsic and extrinsic factors, and transience of Southern Indian landscape

Historic maps as a data source for socio-hydrology: a case study of the Lake Balaton wetland system, Hungary

Análise multitemporal do sistema fluvial Solimões-Amazonas entre os tributários Purus e Negro, Amazônia Ocidental, Brasil

Contact Info

Product

Resources

About