Using continuous surface water level and temperature data to characterize hydrological connectivity in riparian wetlands

2011 ◽  
Vol 183 (1-4) ◽  
pp. 485-500 ◽  
Author(s):  
Alvaro Cabezas ◽  
Maria Gonzalez-Sanchís ◽  
Belinda Gallardo ◽  
Francisco A. Comín
Keyword(s):  
Surface Water ◽  
Water Level ◽  
Temperature Data ◽  
Hydrological Connectivity ◽  
Riparian Wetlands ◽  
Continuous Surface

scholarly journals Analysis of Floodplain Dynamics in the Atrato River Colombia Using SAR Interferometry

Water ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 875 ◽  
Author(s):  
Sebastián Palomino-Ángel ◽  
Jesús A. Anaya-Acevedo ◽  
Marc Simard ◽  
Tien-Hao Liao ◽  
Fernando Jaramillo
Keyword(s):  
Surface Water ◽  
Water Level ◽  
River Basin ◽  
Sar Interferometry ◽  
Hydrological Connectivity ◽  
Mining Activities ◽  
Alos Palsar ◽  
Water Flows ◽  
Main River Channel ◽  
Synthetic Aperture Radars

Floodplain water flows have large volumetric flowrates and high complexity in space and time that are difficult to understand using water level gauges. We here analyze the spatial and temporal fluctuations of surface water flows in the floodplain of the Atrato River, Colombia, in order to evaluate their hydrological connectivity. The basin is one of the rainiest areas of the world with wetland ecosystems threatened by the expansion of agriculture and mining activities. We used 16 Differential Interferometric Synthetic Aperture Radars (DInSAR) phase observations from the ALOS-PALSAR L-band instrument acquired between 2008–2010 to characterize the flow of surface water. We were able to observe water level change in vegetated wetland areas and identify flooding patterns. In the lower basin, flow patterns are conditioned by fluctuations in the levels of the main river channel, whereas in the middle basin, topography and superficial channels strongly influence the flow and connectivity. We found that the variations in water level in a station on the main channel 87 km upstream explained more than 56% of the variations in water level in the floodplain. This result shows that, despite current expansion of agriculture and mining activities, there remain significant hydrological connectivity between wetlands and the Atrato River. This study demonstrates the use of DInSAR for a spatially comprehensive monitoring of the Atrato River basin hydrology. For the first time, we identified the spatiotemporal patterns of surface water flow of the region. We recommend these observations serve as a baseline to monitor the potential impact of ongoing human activities on surface water flows across the Atrato River basin.

scholarly journals Sulfur Cycling at the Surface Water-Groundwater Interface in Riparian Wetlands

2020 ◽  
Author(s):  
G.-H. Crystal Ng ◽  
Cara M. Santelli ◽  
Carla Rosenfeld ◽  
Aubrey Dunshee ◽  
Daniel Kaplan ◽  
...  
Keyword(s):  
Surface Water ◽  
Sulfur Cycling ◽  
Riparian Wetlands

Groundwater-surface water relations in regulated lowland catchments; hydrological and hydrochemical effects of a major change in surface water level management

2019 ◽  
Vol 660 ◽  
pp. 1317-1326 ◽  
Author(s):  
Joachim Rozemeijer ◽  
Janneke Klein ◽  
Dimmie Hendriks ◽  
Wiebe Borren ◽  
Maarten Ouboter ◽  
...  
Keyword(s):  
Surface Water ◽  
Water Level ◽  
Water Relations ◽  
Major Change ◽  
Water Level Management

scholarly journals Influence of surface water level fluctuation and riverbed sediment deposits on groundwater regime

2014 ◽  
Vol 62 (3) ◽  
pp. 177-185 ◽  
Author(s):  
Márta Koczka Bara ◽  
Yvetta Velísková ◽  
Renáta Dulovičová ◽  
Radoslav Schügerl
Keyword(s):  
Surface Water ◽  
Hydraulic Conductivity ◽  
Water Level ◽  
Flow Direction ◽  
Level Fluctuation ◽  
Spatial And Temporal Patterns ◽  
Channel Network ◽  
Erosion Processes ◽  
Riverbed Sediments ◽  
Two Parameters

Abstract The spatial and temporal patterns of surface water (SW) - groundwater (GW) exchange are significantly affected by riverbed silting, clogging or erosion processes, by altering the thickness and hydraulic conductivity of riverbed sediments. The duration of SW-GW exchange is controlled by the drainage and infiltration resistance of river bottom sediments (e.g. Andrássy et al., 2012). Generally, these two parameters primarily depend on the hydraulic conductivity and on the thickness of clogged layer. In this study the flow processes between GW and SW were modeled by model TRIWACO for different infiltration resistance and drainage resistance of riverbed sediments. The model area is situated on the Rye Island, which is a lowland area with very low slope. In this area a channel network was built up, where the flow conditions are controlled by water-gates. Because of the low slope and the system of water gates built on the channels, the riverbeds are influenced by intensive clogging processes. First, the applicability of model TRIWACO in the study area was tested by modelling the response of GW on SW level fluctuation. It was simulated, how the regulation of water level and flow direction in the channels influence the GW level, especially in extreme hydrological conditions (drought/flood), and if the GW flow direction and GW level change as it was expected. Next, the influence of channel network silting up on GW-SW interaction was modeled. The thickness of riverbed sediments was measured and their hydraulic conductivity from disturbed sediment samples was evaluated. The assessed hydraulic conductivity was used to calculate the infiltration resistance and the drainage resistance of riverbed sediments in the study area. Then, the GW level and flow direction was simulated for different infiltration resistance and drainage resistance of sediments.

Gypsum saturation degrees and precipitation potentials from Dead Sea - seawater mixtures

2009 ◽  
Vol 6 (5) ◽  
pp. 416 ◽  
Author(s):  
Itay J. Reznik ◽  
Jiwchar Ganor ◽  
Assaf Gal ◽  
Ittai Gavrieli
Keyword(s):  
Surface Water ◽  
Water Level ◽  
Water Column ◽  
Sea Water ◽  
Theoretical Calculations ◽  
Dead Sea ◽  
Gypsum Precipitation ◽  
The Dead ◽  
Rate Of Decline ◽  
The 1960S

Environmental context. Since the 1960s the Dead Sea water level has dropped by nearly 30 m and over the last decade the rate of decline accelerated to over 1 m per year. Conveying seawater to the Dead Sea to stabilise or even raise its water level is currently being considered but may result in ‘whitening’ of the surface water through the formation of minute gypsum crystals that will remain suspended in the water column for a prolonged period of time. This paper is a first step in attaining the relevant physical and chemical parameters required to assess the potential for such whitening of the Dead Sea. Abstract. Introduction of seawater to the Dead Sea (DS) to stabilise its level raises paramount environmental questions. A major concern is that massive nucleation and growth of minute gypsum crystals will occur as a result of mixing between the SO42–-rich Red Sea (RS) water and Ca2+-rich DS brine. If the gypsum will not settle quickly to the bottom it may influence the general appearance of the DS by ‘whitening’ the surface water. Experimental observations and theoretical calculations of degrees of saturation with respect to gypsum (DSG) and gypsum precipitation potentials (PPT) were found to agree well, over the large range but overall high ionic strength of DS–RS mixtures. The dependency of both DSG and PPT on temperature was examined as well. Based on our thermodynamic insights, slow discharge of seawater to the DS will result in a relatively saline upper water column which will lead to enhanced gypsum precipitation.

scholarly journals Effects of hydrological connectivity on the substrate and understory structure of riparian wetlands in the Middle Ebro River (NE Spain): Implications for restoration and management

2008 ◽  
Vol 70 (4) ◽  
pp. 361-376 ◽  
Author(s):  
Álvaro Cabezas ◽  
Eduardo González ◽  
Belinda Gallardo ◽  
Mercedes García ◽  
María González ◽  
...  
Keyword(s):  
Hydrological Connectivity ◽  
Riparian Wetlands ◽  
Ebro River ◽  
Ne Spain
Sign in / Sign up

Export Citation Format

Share Document