Pan evaporation paradox and evaporative demand from the past to the future over China: a review

Wang, Tingting; Zhang, Jie; Sun, Fubao; Liu, Wenbin

doi:10.1002/wat2.1207

Cited by 40 publications

(45 citation statements)

References 74 publications

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“…The annual trends of Epan in selected meteorological grids are detected in the period 1961–2001 (Figure ). In China, the averaged change rate of Epan is −0.011 mm day −1 year −1 , which is consistent with recent studies (Liu et al ., ; Wang et al ., ). Annual Epan exhibited significant decline (increase) at approximately 57% (9%) grids, which distribute across almost the entire country (some in northeast China, northwest China and south China).…”

Section: Resultsmentioning

confidence: 97%

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Using Geo‐detector to attribute spatio‐temporal variation of pan evaporation across China in 1961–2001

Tao

Sun

Liu

et al. 2019

Intl Journal of Climatology

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Declining pan evaporation (Epan) across many continents in the past decades despite global warming is gaining attention of hydrology and climate science communities. While Geo‐detector is considered useful for attributing the spatio‐temporal variation of a certain geography‐related element, it has not been applied for Epan attribution. Based on the Geo‐detector, we first attribute the spatio‐temporal variation of Epan across China in 1961–2001. The results show that relative humidity is the primary factor influencing the temporal dynamics of Epan, followed by sunshine duration, maximum air temperature and wind speed. In the northwest China (south China and east China), wind speed, air temperature and relative humidity (relative humidity, sunshine duration, wind speed and air temperature) are the dominant factors of Epan variations. The results obtained are comparable to the previous studies using other statistical methods (i.e., the partial differential method, Pearson correlation coefficient and multiple regression), which reveal the usefulness of Geo‐detector for attributing and diagnosing the spatio‐temporal variations of Epan. Moreover, more detailed spatial information and interactions among meteorological elements can be obtained using Geo‐detector. These findings should provide helpful references for understanding the mass and energy budgets at different spatial–temporal scales under global warming.

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Section: Resultsmentioning

confidence: 97%

“…Wang et al . () indicated that Epan decrease was attributed to the changes in wind speed and solar radiation. Xu et al .…”

Section: Introductionmentioning

confidence: 99%

Using Geo‐detector to attribute spatio‐temporal variation of pan evaporation across China in 1961–2001

Tao

Sun

Liu

et al. 2019

Intl Journal of Climatology

Self Cite

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“…Note that the coefficients a s and b s recommended by the FAO (a s = 0.25, b s = 0.50) are not applied in this study. Instead, the two parameters are optimized by solar radiation stations (Liu et al, 2012;Wang et al, 2017). The optimized a s and b s , which are interpolated with the kriging method to obtain the spatial distribution of the two parameters, are shown in Figure 3.…”

Section: Calculation Of Petmentioning

confidence: 99%

Comparison of the aridity index and its drivers in eight climatic regions in China in recent years and in future projections

Wang

et al. 2019

Intl Journal of Climatology

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Intense anthropogenic climate changes are expected to increase atmospheric aridity in the 21st century. The aridity index (AI), defined as the ratio of annual precipitation (Pre) to atmospheric evaporation (potential evapotranspiration [PET]), represents an efficient indicator of climatic changes. However, the variations and underlying drivers of AI values have not been comprehensively compared in different climatic regions. Using the AI calculated on the basis of bias‐corrected precipitation and optimized PET over the period of 1999–2017 and two climate model projections for the coming century, we investigated the response of the AI to climate change and quantified the contributions of climatic factors to AI variations in eight climatic regions in China, that is, the northwest (NW), north‐centre (NC), northeast (NE), North China Plain (NCP), east (E), southeast (SE), southwest (SW) and Tibet Plateau (TP). The results indicated that the AI values in seven of the eight climate regions exhibited negative trends from 1999 to 2017, with mean values ranging from −0.0008 in SW to −0.0414 in NC, while the AI values in the TP region showed a significant positive trend, with a value of 0.0124. Pre was the dominant factor for the variations in AI values in all climate regions, with contribution rates from 65 to 308%, followed by decreasing solar radiation in the NW, NC, E, SE and SW regions; deceasing wind speed in NE and NCP; and deceasing actual vapour pressure in the TP. The effect of increasing temperature on the AI trend was offset by other climate factors. By the end of the 21st century, under the Representative Concentration Pathway 8.5 emission scenario, the AI will significantly increase in five of the eight regions to values approximately 16.5% higher than those during 1999–2017, and this increase in the AI will be dominated by increasing PET. Overall, the shift in the dominant AI factor from Pre in recent years to PET in the future indicates that more attention should be given to the response of the AI to global warming. Furthermore, regional differences in climate change and AI values during 2018–2,100 will inevitably influence water availability and urgently require the development of adaptation strategies for different climatic regions.

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“…Global stilling and global dimming reported in many parts of the world during past decades have led to observed decreases in pan evaporation, than can be used as a proxy for lake evaporation [75][76][77]. Although these two effects may compensate the increase in air temperatures, the latest publications indicate an increase in both terrestrial ET and pan evaporation [78,79]. Declines in surface water extent of endorheic lakes in CA, together with such climate indicators as rising surface water temperatures and air temperatures, signal an increase in open water (lake) evaporation in CA.…”

Section: Effects Of the Global Circulation Climate Change And Local mentioning

confidence: 99%

Essentials of Endorheic Basins and Lakes: A Review in the Context of Current and Future Water Resource Management and Mitigation Activities in Central Asia

Yapiyev

Sagin

Inglezakis

et al. 2017

Water

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Abstract:Endorheic basins (i.e., land-locked drainage networks) and their lakes can be highly sensitive to variations in climate and adverse anthropogenic activities, such as overexploitation of water resources. In this review paper, we provide a brief overview of one major endorheic basin on each continent, plus a number of endorheic basins in Central Asia (CA), a region where a large proportion of the land area is within this type of basin. We summarize the effects of (changing) climate drivers and land surface-atmosphere feedbacks on the water balance. For the CA region, we also discuss key anthropogenic activities, related water management approaches and their complex relationship with political and policy issues. In CA a substantial increase in irrigated agriculture coupled with negative climate change impacts have disrupted the fragile water balance for many endorheic basins and their lakes. Transboundary integrated land and water management approaches must be developed to facilitate adequate climate change adaptation and possible mitigation of the adverse anthropogenic influence on endorheic basins in CA. Suitable climate adaptation, mitigation and efficient natural resource management technologies and methods are available, and are developing fast. A number of these are discussed in the paper, but these technologies alone are not sufficient to address pressing water resource issues in CA. Food-water-energy nexus analyses demonstrate that transboundary endorheic basin management requires transformational changes with involvement of all key stakeholders. Regional programs, supported by local governments and international donors, which incorporate advanced adaptation technologies, water resource research and management capacity development, are essential for successful climate change adaptation efforts in CA. However, there is a need for an accelerated uptake of such programs, with an emphasis on unification of approaches, as the pressures resulting from climate change and aggravated by human mismanagement of natural water resources leave very little time for hesitation.

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Pan evaporation paradox and evaporative demand from the past to the future over China: a review

Cited by 40 publications

References 74 publications

Using Geo‐detector to attribute spatio‐temporal variation of pan evaporation across China in 1961–2001

Using Geo‐detector to attribute spatio‐temporal variation of pan evaporation across China in 1961–2001

Comparison of the aridity index and its drivers in eight climatic regions in China in recent years and in future projections

Essentials of Endorheic Basins and Lakes: A Review in the Context of Current and Future Water Resource Management and Mitigation Activities in Central Asia

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