Diverging Trends in Rain‐On‐Snow Over High Mountain Asia

Maina, Fadji Zaouna; Kumar, Sujay V.

doi:10.1029/2022ef003009

Cited by 10 publications

(4 citation statements)

References 92 publications

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“…Note that we also performed an open loop simulation that is, a simulation without any assimilation accounting for the changes in climate only. The improved utility of the multivariate data assimilation has been validated by comparing the simulated streamflow, runoff, groundwater storage, ET, and snow cover to those obtained from other reanalyses, remotely sensed, and groundwater measurements (Maina & Kumar, 2023). Here, we discuss the comparisons between the trends in simulated ET (Figure 2 and Figure S3 in Supporting Information ) and gross primary production (GPP, Figure S1 in Supporting Information ) and those derived from remotely sensed data.…”

Section: Study Area and Methodsmentioning

confidence: 99%

Anthropogenic Influences Alter the Response and Seasonality of Evapotranspiration: A Case Study Over Two High Mountain Asia Basins

Maina,

Kumar

2024

Geophysical Research Letters

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Earth's vegetation has been increasing over the past decades, altering water and energy cycles by changing evapotranspiration (ET). Greening, caused by climatic and anthropogenic factors, has high rates in High Mountain Asia (HMA). Here we focus on two HMA basins (the Yangtze and the Ganges‐Brahmaputra) to contrast the impacts of climate‐ and human‐induced greening on ET. Though the rate of greening is similar in both basins, anthropogenic influences lead to dissimilar responses in ET. In the Yangtze, climate‐induced greening increases ET, with the increase in moisture being high enough to meet the ET demand. In the Ganges‐Brahmaputra, irrigation‐induced greening does not alter annual ET, only pre‐monsoon ET increases. The dry season declines in water storage due to pumping decrease ET, while laboriously meeting the demand. This study provides a representative example of the contrasting influences of climate induced and anthropogenic driven processes on the seasonality of ET.

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Section: Study Area and Methodsmentioning

confidence: 99%

Anthropogenic Influences Alter the Response and Seasonality of Evapotranspiration: A Case Study Over Two High Mountain Asia Basins

Maina,

Kumar

2024

Geophysical Research Letters

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“…In addition, research on both global and Asian annual total precipitation and its long‐term change has been reported (Becker et al, 2012; Blanchet et al, 2009; Kunkel et al, 2009; Noake et al, 2012; Polson et al, 2013; Ren et al, 2015; Zhan et al, 2018). The analyses of precipitation change have generally revealed a detectable trend toward higher precipitation amounts and more frequent extreme rainfall events over recent decades, especially in mid to high latitude lands and high‐altitude areas in the northern hemisphere (e.g., Maina & Kumar, 2023; Zhan et al, 2018; Zhang et al, 2007). These studies have enriched our understanding of precipitation and snowfall climatology and the climate change and variability in different regions.…”

Section: Introductionmentioning

confidence: 99%

Determining threshold air temperature of snowfall and rainfall in China mainland

Liu,

Ren

2024

Hydrological Processes

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Separating existing historical precipitation data into solid and liquid precipitation remains a challenge in the study of climate change, extreme precipitation, and hydrological modelling. Based on historical daily air temperature and precipitation data, as well as visual observations of precipitation phase (weather phenomena records) in China mainland, this study proposed a snow‐day direct definition method (SDDM) to determine the threshold air temperature (TAT) of rainfall and snowfall, and analysed the spatial pattern and its influential factors. The main findings include: (1) the TAT based on the SDDM varied from −1.2 to 6.3°C, with a mean value of 2.8°C for the entire study region; (2) TAT was generally higher and more variable in the low‐latitude areas, and the Qinghai‐Tibet Plateau was characterized by an abnormally high average TAT of 5.2°C, almost twice as large as that of the eastern monsoon region; (3) TAT exhibited a significant positive correlation with altitude and negative correlation with precipitation and relative humidity. The results presented in this paper have potential application for studies of large‐scale snowfall climatology and climate change, weather forecasting techniques, and hydrological model parameterization in areas with complex and diverse geographical and climatic conditions.

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“…Climate change exerts a significant influence on myriad facets of our environment, from natural resource availability and infrastructure development to water accessibility. Among the multifaceted consequences of climate change are fluctuations in precipitation patterns [1], which manifest as reduced snowfall, accelerated snowmelt, and diminished summer rainfall [2,3]. Concurrently, the escalating temperatures intensify these impacts, leading to altered water quality [4], shifts in resource availability [5], changes in soil composition [6], variations in vegetation patterns [7], and disruptions in the timing of precipitation and runoff [8].…”

Section: Introductionmentioning

confidence: 99%

Assessing the Performance and Challenges of Low-Impact Development under Climate Change: A Bibliometric Review

Wang,

Feng,

Ikram

et al. 2023

Sustainability

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Low-Impact Development (LID) represents a cogent strategy designed to conserve or reestablish antecedent hydrological states through an array of innovative mechanisms and methodologies. Since the dawn of the millennium, LID-centric research has demonstrated a persistent upward trajectory, mainly focusing on its capacity to mitigate climate change repercussions, particularly runoff and peak flows. However, a standardized rubric and toolkit for LID evaluation remain elusive. While numerous studies have documented the hydrological and water quality benefits of LID, the impacts of climate change on its effectiveness remain uncertain due to varying spatial and temporal climate patterns. This comprehensive review examined 1355 peer-reviewed articles in English, comprising both research articles and reviews, indexed in the Web of Science up until 2022. Findings from the bibliometric analysis revealed significant contributions and emergent trends in the field. Notably, there is an increasing emphasis on performance evaluation and efficiency of LID systems, and on understanding their impact on hydrology and water quality. However, this review identified the lack of a standardized LID evaluation framework and the uncertainty in LID effectiveness due to varying climate patterns. Furthermore, this study highlighted the urgent need for optimization of current hydrological models, advancement of LID optimization, modeling, monitoring, and performance, and stakeholder awareness about LID functionality. This review also underscored the potential future research trajectories, including the need to quantify LID’s effectiveness in urban flooding and water quality management and refining LID simulation models. Cumulatively, this review consolidates contemporaneous and prospective research breakthroughs in urban LID, serving as an indispensable compendium for academics and practitioners in the discipline.

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Diverging Trends in Rain‐On‐Snow Over High Mountain Asia

Cited by 10 publications

References 92 publications

Anthropogenic Influences Alter the Response and Seasonality of Evapotranspiration: A Case Study Over Two High Mountain Asia Basins

Anthropogenic Influences Alter the Response and Seasonality of Evapotranspiration: A Case Study Over Two High Mountain Asia Basins

Determining threshold air temperature of snowfall and rainfall in China mainland

Assessing the Performance and Challenges of Low-Impact Development under Climate Change: A Bibliometric Review

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