scholarly journals 14th-16th-Century Danube Floods and Long-Term Water-Level Changes in Archaeological and Sedimentary Evidence in The Western and Central Carpathian Basin: an Overview with Documentary Comparison

2013 ◽  
Vol 6 (3-4) ◽  
pp. 1-11 ◽  
Author(s):  
Andrea Kiss ◽  
József Laszlovszky
Keyword(s):  
Water Level ◽  
Carpathian Basin ◽  
Building Structures ◽  
Flood Events ◽  
Water Level Changes ◽  
Present Information ◽  
Long Term Changes ◽  
Average Water ◽  
Morphological Processes

Abstract In the present paper an overview of published and unpublished results of archaeological and sedimentary investigations, predominantly reflect on 14th-16th-century changes, are provided and evidence compared to documentary information on flood events and long-term changes. Long-term changes in flood behaviour (e.g. frequency, intensity, seasonality) and average water-level conditions had long-term detectable impacts on sedimentation and fluvio-morphological processes. Moreover, the available archaeological evidence might also provide information on the reaction of the society, in the form of changes in settlement organisation, building structures and processes. At present, information is mainly available concerning the 16th, and partly to the 14th-15th centuries. These results were compared to the available documentary evidence on 14th-16th century Danube floods occurred in the Carpathian Basin.

Sedimentary Cladocera as indicators of past water-level changes in shallow northern lakes

2011 ◽  
Vol 75 (3) ◽  
pp. 430-437 ◽  
Author(s):  
Liisa Nevalainen ◽  
Kaarina Sarmaja-Korjonen ◽  
Tomi P. Luoto
Keyword(s):  
Water Level ◽  
Lake Level ◽  
Water Levels ◽  
Sediment Record ◽  
Inference Model ◽  
Water Level Changes ◽  
Long Term Changes ◽  
Lower Water Level ◽  
The Relationship

AbstractThe usability of subfossil Cladocera assemblages in reconstructing long-term changes in lake level was examined by testing the relationship between Cladocera-based planktonic/littoral (P/L) ratio and water-level inference model in a surface-sediment dataset and in a 2000-yr sediment record in Finland. The relationships between measured and inferred water levels and P/L ratios were significant in the dataset, implying that littoral taxa are primarily deposited in shallow littoral areas, while planktonic cladocerans accumulate abundantly mainly in deepwater locations. The 2000-yr water-level reconstructions based on the water-level inference model and P/L ratio corresponded closely with each other and with a previously available midge-inferred water-level reconstruction from the same core, showing a period of lower water level around AD 300–1000 and suggesting that the methods are valid for paleolimnological and -climatological use.

How long-term water level changes influence the spatial distribution of fish and other functional groups in a large shallow lake

2020 ◽  
Vol 46 (4) ◽  
pp. 813-823 ◽  
Author(s):  
Upendra Bhele ◽  
Burak Öğlü ◽  
Arvo Tuvikene ◽  
Priit Bernotas ◽  
Maidu Silm ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Water Level ◽  
Functional Groups ◽  
Shallow Lake ◽  
Large Shallow Lake ◽  
Water Level Changes ◽  
Distribution Of Fish

scholarly journals Ground Deformation of Wuhan, China, Revealed by Multi-Temporal InSAR Analysis

2020 ◽  
Vol 12 (22) ◽  
pp. 3788
Author(s):  
Yakun Han ◽  
Jingui Zou ◽  
Zhong Lu ◽  
Feifei Qu ◽  
Ya Kang ◽  
...  
Keyword(s):  
Water Level ◽  
Land Subsidence ◽  
Ground Deformation ◽  
Central China ◽  
Subsurface Water ◽  
City Management ◽  
Spatiotemporal Evolution ◽  
Water Level Changes ◽  
Multi Temporal

Wuhan, the largest city in central China, has experienced rapid urban development leading to land subsidence as well as environmental concerns in recent years. Although a few studies have analyzed the land subsidence of Wuhan based on ALOS-1, Envisat, and Sentinel-1 datasets, the research on long-term land subsidence is still lacking. In this study, we employed multi-temporal InSAR to investigate and reveal the spatiotemporal evolution of land subsidence over Wuhan with ALOS-1, Envisat, and Sentinel-1 images from 2007–2010, 2008–2010, 2015–2019, respectively. The results detected by InSAR were cross-validated by two independent SAR datasets, and leveling observations were applied to the calibration of InSAR-derived measurements. The correlation coefficient between the leveling and InSAR has reached 0.89. The study detected six main land subsidence zones during the monitoring period, with the maximum land subsidence velocity of −46 mm/a during the 2015–2019 analysis. Both the magnitude and the extent of the land subsidence have reduced since 2017. The causes of land subsidence are discussed in terms of urban construction, Yangtze river water level changes, and subsurface water level changes. Our results provide insight for understanding the causes of land subsidence in Wuhan and serve as reference for city management for reducing the land subsidence in Wuhan and mitigating the potential hazards.

scholarly journals Hydrological Regime of the Trans-Baikal Lakes in the conditions of the Changing Climate (Ivano-Arakhleysky Lakes as a Study Case)

2011 ◽  
pp. 4-14
Author(s):  
Keyword(s):  
Water Level ◽  
Climate Changes ◽  
Atmospheric Precipitation ◽  
Hydrological Regime ◽  
Water Level Fluctuations ◽  
Changing Climate ◽  
Long Term Changes ◽  
Study Case ◽  
Ice Water

Long-term changes of temperature of air and atmospheric precipitation in Transbaikalia and their influence on the hydrological regime of the Ivano-Arahleysky lakes are considered in the article. Climate changes have caused rise in temperature of water of lakes, reduction a thickness of ice and duration of standing of ice. Water level fluctuations have cyclic character and depend on long-term changes of atmospheric precipitation.

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