The Estimation of Regional Precipitation Recycling. Part I: Review of Recycling Models

Burde, Georgy I.; Zangvil, Abraham

doi:10.1175/1520-0442(2001)014<2497:teorpr>2.0.co;2

Cited by 82 publications

(108 citation statements)

References 24 publications

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“…Different methodologies exist to compute the moisture recycling, ranging from simple water balance models (Budyko, 1974;Eltahir and Bras, 1994;Savenije, 1995;Schär et al, 1999) to detailed modeling studies of water particle tracking (Koster et al, 1986;Bosilovich and Schubert, 2002). A review of the precipitation recycling formulae and their mutual comparison is given in Brude and Zangvil (2001), Brubaker et al (1993) and others. Different sources of fluxes data are used; observations, re-analysis, and model results.…”

Section: Nile Water Cyclementioning

confidence: 99%

Hydroclimatology of the Nile: results from a regional climate model

Mohamed

Hurk

Savenije

et al. 2005

Hydrol. Earth Syst. Sci.

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Abstract. This paper presents the result of the regional coupled climatic and hydrologic model of the Nile Basin. For the first time the interaction between the climatic processes and the hydrological processes on the land surface have been fully coupled. The hydrological model is driven by the rainfall and the energy available for evaporation generated in the climate model, and the runoff generated in the catchment is again routed over the wetlands of the Nile to supply moisture for atmospheric feedback. The results obtained are quite satisfactory given the extremely low runoff coefficients in the catchment.The paper presents the validation results over the subbasins: Blue Nile, White Nile, Atbara river, the Sudd swamps, and the Main Nile for the period 1995 to 2000. Observational datasets were used to evaluate the model results including radiation, precipitation, runoff and evaporation data. The evaporation data were derived from satellite images over a major part of the Upper Nile. Limitations in both the observational data and the model are discussed. It is concluded that the model provides a sound representation of the regional water cycle over the Nile. The sources of atmospheric moisture to the basin, and location of convergence/divergence fields could be accurately illustrated. The model is used to describe the regional water cycle in the Nile basin in terms of atmospheric fluxes, land surface fluxes and land surface-climate feedbacks. The monthly moisture recycling ratio (i.e. locally generated/total precipitation) over the Nile varies between 8 and 14%, with an annual mean of 11%, which implies that 89% of the Nile water resources originates from outside the basin physical boundaries. The monthly precipitation efficiency varies between 12 and 53%, and the annual mean is 28%. The mean annual result of the Nile regional water cycle is compared to that of the Amazon and the Mississippi basins.Correspondence to: Y. A. Mohamed (yasir1@unesco-ihe.org)

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Section: Nile Water Cyclementioning

confidence: 99%

Hydroclimatology of the Nile: results from a regional climate model

Mohamed

Hurk

Savenije

et al. 2005

Hydrol. Earth Syst. Sci.

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“…The degree of water originated from land is important, because it gives useful information on possible interactions between land surface hydrology and climate (Burde and Zangvil 2001). The term ''recycling ratio'' in many previous studies (e.g., Burde and Zangvil 2001) usually suggests that part of the precipitation over a limited area originates from evaporation from that same area (referred to as ''local evaporation''). In Fig.…”

Section: Continental Cycling Ratiomentioning

confidence: 99%

“…This is a simple question for which no clear answer has been given. Many studies have related this question to precipitation recycling (well reviewed in Eltahir andBras 1996 andBurde andZangvil 2001). However, because direct validations are difficult (Burde and Zangvil 2001), discussions of the appropriateness of several recycling models have traditionally been restricted to underlying limitations or assumptions.…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have related this question to precipitation recycling (well reviewed in Eltahir andBras 1996 andBurde andZangvil 2001). However, because direct validations are difficult (Burde and Zangvil 2001), discussions of the appropriateness of several recycling models have traditionally been restricted to underlying limitations or assumptions. However, the use of stable water isotopes (e.g., Salati et al 1979;Gat and Matsui 1991), which are theoretically actual tracers influenced directly by atmospheric behavior, is suitable for validating recycling models.…”

Section: Introductionmentioning

confidence: 99%

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Colored Moisture Analysis Estimates of Variations in 1998 Asian Monsoon Water Sources

Yoshimura

Oki

Ohte

et al. 2004

Journal of the Meteorological Society of Japan

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This study investigated the dynamic motion of atmospheric water advection by an analytic method called colored moisture analysis (CMA), that allows for the estimation and visualization of atmospheric moisture advection from specific source regions. The CMA water transport model includes balance equations with the upstream scheme and, uses external meteorological forcings. The forcings were obtained from the Global Energy and Water Cycle Experiment (GEWEX) Asian Monsoon Experiments (GAME) reanalysis. A numerical simulation with 79 global sections was run for April to October 1998. The results clearly showed seasonal variations in advection associated with large-scale circulation fields, particularly a difference between rainy and dry seasons associated with the Asian monsoon. The paper also proposes a new definition of southwest Asian monsoon onset and decay, based on the amount of water originating from the Indian Ocean. Earliest onset occurs over southeastern Indochina around 16-25 May. Subsequent onset occurs in India one month later. These results agree with previous studies on the Asian monsoon onset/end. The CMA provides a clearer, more integrated view of temporal and spatial changes in atmospheric circulation fields, particularly Asian monsoon activities, than previous studies that focused only on one or two distinct circulation features, such as precipitation or wind speed. Furthermore, monsoon transition in a specific year, 1998, first became analyzable, whereas the previous studies used climatologies.

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“…The estimation of precipitation recycling depends on the model, and evaporation is a crucial component of the model. A new two-dimensional precipitation recycling model that considers the inhomogeneity and imbalance of the moisture flux was developed by Burde and Zangvil (2000). In arid regions in Africa, result of the recycling ratio from Trenberth (1998a, b) is 12-20 % and the maximum occurs in December, January, and February (DJF).…”

Section: Introductionmentioning

confidence: 99%

Changes in precipitation recycling over arid regions in the Northern Hemisphere

Wang

2016

Theor Appl Climatol

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Changes of precipitation recycling (PR) in Northern Hemisphere from 1981 to 2010 are investigated using a water recycling model. The temporal and spatial characteristics of recycling in arid regions are analyzed. The results show that the regional precipitation recycling ratio (PRR) in arid regions is larger than in wet regions. PRR in arid regions has obvious seasonal variation, ranging from more than 25 % to less than 1 %. Furthermore, in arid regions, PRR is significantly negatively correlated with precipitation (correlation coefficient r = −0.5, exceeding the 99 % significance level). Moreover, the trend of PRR is related to changes in precipitation in two ways. PRR decreases with increasing precipitation in North Africa, which implies that less locally evaporated vapor converts into actual precipitation. However, in Asian arid regions, the PRR increases as precipitation reduces, which implies that more locally evaporated vapor converts into rainfall. Further, as PRR mainly depends on evapotranspiration, the PRR trend in Asian arid regions develops as temperature increases and more evaporated vapor enters the atmosphere to offset the reduced rainfall.

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The Estimation of Regional Precipitation Recycling. Part I: Review of Recycling Models

Cited by 82 publications

References 24 publications

Hydroclimatology of the Nile: results from a regional climate model

Hydroclimatology of the Nile: results from a regional climate model

Colored Moisture Analysis Estimates of Variations in 1998 Asian Monsoon Water Sources

Changes in precipitation recycling over arid regions in the Northern Hemisphere

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