Evaporation of groundwater from coastal playas (Sabkhah) in the Arabian Gulf

Pike, John

doi:10.1016/0022-1694(70)90117-4

Cited by 46 publications

(2 citation statements)

References 2 publications

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“…Apart from the observations of the wetting-drying cycles, previous hydrological studies have also focused on the annual radiation and windiness (Malek et al, 2002), the evaporation rate (Pike, 1970;Prata, 1990), and the relation between the water surface area and the energy balance (Laymon, 1998) which was then employed in order to assess certain hydrological models.…”

Section: Introductionmentioning

confidence: 99%

The water regime of the Monegros playa-lakes as established from ground and satellite data

Álamo¹,

Herrero²

2005

Journal of Hydrology

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The Monegros playa-lakes are isolated saline wetlands, locally named "saladas", situated in a vulnerable semi-arid territory where agricultural expansion threatens the natural hydrologic cycle with regular artificial flooding, risking the survival of a valuable natural resource. This study aims to examine the water regime of these playalakesfrom climate data and available hydrologic records. These records are historicaland limited to a series of weekly measurements of depth and of water extent extractedfrom Landsat imagery. We have characterized the hydrological behavior of the playalakesby treating ground and satellite data separately. For this purpose, the playalakesare first grouped according to the water occurrence episodes. Then their hydrologic status is related to the previous rainfall and also to ET0, since there is a lack of local records of wind as well as brine or fresh water evaporation. The northern playa-lakes respond to rain faster than the southern ones. All playa-lakes have a significant relationship between water occurrence and rainfall accumulated within 180 days prior to an observation. A significant relationship between ET0 and water occurrence was found 1 *Corresponding author. E-mail address: ccastanneda@aragon.es (C. Castañeda), Fax: +34 976 716 335 2 for a shorter 15-day accumulation period. Quantifying the current water regime now is critical for monitoring the effects of expanding irrigation in adjacent lands. Remote sensing is well-suited to an environmental assessment for regions of difficult access with the added benefit of lowered field measurement cost. The hydrological data from the Monegros playa-lakes could be integrated with other playa environments worldwide to compare regionally specific climate conditions.

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Section: Introductionmentioning

confidence: 99%

The water regime of the Monegros playa-lakes as established from ground and satellite data

Álamo¹,

Herrero²

2005

Journal of Hydrology

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“…Average winter lows are 9 o C and summer highs 45 o C. Potential evaporation, which reaches up to 230 mm/day, far exceeds the precipitation (Pike, 1970).…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical Processes and Environmental Isotopic Study of Groundwater in Kuwait

Al-Ruwaih

Shehata

2004

Water International

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The present paper studies the hydrochemical processes and the isotopic characteristics of the main aquifers, the Kuwait Group and Dammam aquifers in the State of Kuwait. The water chemical types are dominantly NaCl and Na 2 SO 4 in the Kuwait Group aquifer and Na 2 SO 4 , CaSO 4 , and NaCl in the Dammam Limestone aquifer. The groundwater of the Kuwait Group aquifer is supersaturated with respect to quartz and calcite, and near saturation with respect to aragonite, but under-saturated with respect to anhydrite, dolomite, gypsum, and halite. While the groundwater of the Dammam aquifer is strongly under-saturated with respect to anhydrite, halite, and gypsum and is supersaturated with respect to quartz, dolomite, aragonite, and calcite. The saturation indices of the calcite and dolomite are increased in the direction of flow from southwest toward north-northeast. Al-Rawdhatain and Umm Al-Aish groundwater samples lie near the meteoric water line. They represent the effect of recharge by rainfall during pluvial period. The brackish palaeo-groundwater of the Dammam aquifer has low values of δ 18 O (-4.5 per mil) and δD (-35 per mil), which reveal that these waters are related to the palaeo-water from the cool wet period in the eastern Arabia 11,000 to 60,000 years B.P. The investigated brackish groundwater samples showed that the deuterium excess values are much lower than that of the Mediterranean areas. This may suggest that the evaporation was a prevailing process before the infiltration to the aquifers.

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A review of aridity and groundwater

Lloyd

1986

Hydrological Processes

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Surface hydrological studies are seen as inadequate in hyperarid and arid areas to provide reliable estimates of recharge. In most such areas surface discharges are not present so that assessments of groundwater resources are dependent upon ground interpretation and denied the flow control found in assessments elsewhere. Groundwater models show that gradients are sustained by long-term dewatering and very small amounts of modern indirect recharge. Recharge indications are well within the error of a hydrological balance. Discharges appear equally small.The development of groundwater in arid areas frequently faces problems of salination due to recycling of irrigation water and rising groundwater heads. Abstraction is often inadequately managed so that uncontrolled mining of groundwater occurs. The advantage that groundwater has, however, is that it offers staged development and staged appraisal. ARIDITY AND GROUNDWATERc J

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Evaporation of groundwater from coastal playas (Sabkhah) in the Arabian Gulf

Cited by 46 publications

References 2 publications

The water regime of the Monegros playa-lakes as established from ground and satellite data

The water regime of the Monegros playa-lakes as established from ground and satellite data

Hydrochemical Processes and Environmental Isotopic Study of Groundwater in Kuwait

A review of aridity and groundwater

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