Characteristics of the precipitation recycling ratio and its relationship with regional precipitation in China

Hua, Lijuan; Zhong, Linhao; Ke, Zongjian

doi:10.1007/s00704-015-1645-1

Cited by 46 publications

(41 citation statements)

References 58 publications

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“…This is in line with previous studies (van der Ent et al 2010;Hua et al 2017) that suggested that the topography confines the local evaporation within the region. However, it is interesting to notice the contrasting r(T 2,max , E) values between the western and eastern TP in MAM, JJA and SON.…”

Section: Evaporationsupporting

confidence: 82%

“…During a precipitation event, increased cloud cover reduces net surface shortwave radiation and evaporation. This negative correlation between evaporation and precipitation over southeastern China was also found in other studies (Wei et al 2012;Hua et al 2017).…”

Section: Evaporationsupporting

confidence: 66%

“…In dry conditions, evaporation is strongly controlled by soil moisture, but its magnitude and variability are too small to impact precipitation. Consistent with these global studies, over EA, Wei et al (2012) and Hua et al (2017) found that in southeast China (a wet region), local evaporation has a weak impact on precipitation. Strong impacts of local evaporation, however, are found over mountainous regions, such as the Himalayas (van der Ent et al 2010;Hua et al 2017).…”

supporting

confidence: 70%

“…Consistent with these global studies, over EA, Wei et al (2012) and Hua et al (2017) found that in southeast China (a wet region), local evaporation has a weak impact on precipitation. Strong impacts of local evaporation, however, are found over mountainous regions, such as the Himalayas (van der Ent et al 2010;Hua et al 2017). van der Ent et al (2010) suggested that this is mainly due to topography that confines local evaporation within the region.…”

supporting

confidence: 70%

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The contributions of local and remote atmospheric moisture fluxes to East Asian precipitation and its variability

et al. 2018

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We investigate the contribution of the local and remote atmospheric moisture fluxes to East Asia (EA) precipitation and its interannual variability during 1979-2012. We use and expand the Brubaker et al. (J Clim 6:1077(J Clim 6: -1089(J Clim 6: ,1993) method, which connects the area-mean precipitation to area-mean evaporation and the horizontal moisture flux into the region. Due to its large landmass and hydrological heterogeneity, EA is divided into five sub-regions: Southeast (SE), Tibetan Plateau (TP), Central East (CE), Northwest (NW) and Northeast (NE). For each region, we first separate the contributions to precipitation of local evaporation from those of the horizontal moisture flux by calculating the precipitation recycling ratio: the fraction of precipitation over a region that originates as evaporation from the same region. Then, we separate the horizontal moisture flux across the region's boundaries by direction. We estimate the contributions of the horizontal moisture fluxes from each direction, as well as the local evaporation, to the mean precipitation and its interannual variability. We find that the major contributors to the mean precipitation are not necessarily those that contribute most to the precipitation interannual variability. Over SE, the moisture flux via the southern boundary dominates the mean precipitation and its interannual variability. Over TP, in winter and spring, the moisture flux via the western boundary dominates the mean precipitation; however, variations in local evaporation dominate the precipitation interannual variability. The western moisture flux is the dominant contributor to the mean precipitation over CE, NW and NE. However, the southern or northern moisture flux or the local evaporation dominates the precipitation interannual variability over these regions, depending on the season. Potential mechanisms associated with interannual variability in the moisture flux are identified for each region. The methods and results presented in this study can be readily applied to model simulations, to identify simulation biases in precipitation that relate to the simulated moisture supplies and transport.

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Section: Evaporationsupporting

confidence: 82%

Section: Evaporationsupporting

confidence: 66%

supporting

confidence: 70%

supporting

confidence: 70%

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The contributions of local and remote atmospheric moisture fluxes to East Asian precipitation and its variability

et al. 2018

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“…Secondly, the Tibetan Plateau is secluded and inland, and the terrain is on the high side, so the variation characteristics of warm and humid air may be greatly weakened due to the long journey as well as by the barrier layers of mountains. Finally, which is perhaps the most noteworthy point, the precipitation recycling is likely to play an important role in the formation mechanism of mountain precipitation [28]. During the daytime, strong evapotranspiration leads to considerable water loss (measured over the same period), while plunging temperatures at night force water vapor to rapidly cool and even condense; therefore, this area is prone to small precipitation events.…”

Section: Inter-annual Fluctuationmentioning

confidence: 99%

Temporal Distribution Characteristics of Alpine Precipitation and Their Vertical Differentiation: A Case Study from the Upper Shule River

Qing-feng

Gao²

2017

Water

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Abstract:Alpine precipitation is an important component of the mountain hydrological cycle and may also be a determinant of water resources in inland river basins. In this study, based on field observation data of the upper Shule River and daily precipitation records of the Tuole weather station during 2009-2015, temporal distribution characteristics of alpine precipitation and their vertical differentiation were evaluated mainly using percentages of precipitation anomalies (Pa), coefficient of variation (Cv), precipitation concentration degree (PCD) and concentration period (PCP). The results indicated that the inter-annual variability of annual precipitation was generally small, with a Pa that was only somewhat larger in low altitude zones for individual years; the inter-annual fluctuation of monthly precipitation increased noticeably, but the Cv and precipitation can be described as a power function. Annual distribution was basically consistent; more than 85.6% of precipitation was concentrated during the period from May to September; PCD ranged between 0.71 and 0.83 while the PCP was located within the 37th-41st pentads. Diurnal variation of precipitation was defined, mainly occurring from 1500 to 0100 Local Standard Time, and displayed a vertical change that was dominated by precipitation intensity or precipitation frequency. The temporal distribution of alpine precipitation has a noticeable vertical differentiation, and this is likely to originate from the diversity of precipitation mechanisms in mountainous terrain areas.

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Contribution of recycled moisture to precipitation in oases of arid central Asia: A stable isotope approach

Wang

Zhang

Che

et al. 2016

Water Resources Research

110

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Terrestrial moisture contributed by surface evaporation and transpiration, also known as recycled moisture, plays an important role in hydrological processes especially across arid central Asia. The stable hydrogen and oxygen isotopes can be used for water budget analysis to calculate the contribution of recycled moisture to precipitation between two locations along the moisture flow. Based on a three-component isotopic mixing model, the moisture recycling in oasis stations of arid central Asia during summer months is assessed. At large oases of Urumqi, the proportional contribution of recycled moisture to local precipitation is approximately 16.2%, and the mean proportions of surface evaporation and transpiration are 5.9% 6 1.5% and 10.3% 6 2.2%, respectively. At small oases like Shihezi and Caijiahu the contribution of recycled moisture is less than 5%, and the proportion of surface evaporation is much less than that of transpiration. The vegetative cover in arid central Asia is generally sparse, but the evapotranspiration contribution to precipitation cannot be ignored at the widely distributed oases. The oasis effect shows great variability depending on locations and water availability for evapotranspiration.

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Characteristics of the precipitation recycling ratio and its relationship with regional precipitation in China

Cited by 46 publications

References 58 publications

The contributions of local and remote atmospheric moisture fluxes to East Asian precipitation and its variability

The contributions of local and remote atmospheric moisture fluxes to East Asian precipitation and its variability

Temporal Distribution Characteristics of Alpine Precipitation and Their Vertical Differentiation: A Case Study from the Upper Shule River

Contribution of recycled moisture to precipitation in oases of arid central Asia: A stable isotope approach

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