Evapotranspiration in hydrological models under rising CO2: a jump into the unknown

Lemaitre-Basset, Thibault; Oudin, Ludovic; Thirel, Guillaume

doi:10.1007/s10584-022-03384-1

Cited by 12 publications

(4 citation statements)

References 54 publications

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“…(2019). Similar to previous studies (Lemaitre‐Basset, Oudin, & Thirel, 2022; Milly & Dunne, 2016; Yang et al., 2019), we found overestimations of up to 200 mm. year −1 in future multi‐model ensemble mean PET computed ignoring the effects of CO 2 concentrations (Figure S6 in Supporting Information ).…”

Section: Resultssupporting

confidence: 91%

Brazilian Water Security Threatened by Climate Change and Human Behavior

Ballarin

Uchôa

Santos

et al. 2023

Water Resources Research

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Continental water availability is of paramount importance for ecological and human well-being (Greve & Seneviratne, 2015;Milly et al., 2005). Many of the global impacts on agriculture, ecosystem services, human health, and economic activities are related to changes in water fluxes (D'Odorico et al., 2020;Roderick et al., 2014). Global climate change is expected to alter the water cycle dynamics (Haddeland et al., 2014) and the frequency and magnitude of extreme events (Aghakouchak et al., 2020), which will likely increase water availability-related issues (Rockström et al., 2009;Zhou et al., 2022). Along with climate change, water resources are also threatened by the growing water demand required to support an ever-increasing population (Hanasaki et al., 2013a(Hanasaki et al., , 2013bLiu et al., 2017). The compound effect of climate change and rising water demand is likely to exacerbate water scarcity around the globe (He et al., 2021), negatively impacting terrestrial ecosystems and potentially hindering progress toward the United Nations Sustainable Development Goals 6: Clean Water and Sanitation, which aims to ensure "clean and accessible water for all" (van Vliet et al., 2021;Vanham et al., 2018). This challenging scenario is also seen in Brazil, even though the country contains nearly 15% of the world's renewable water resources (Getirana et al., 2021). Given its continental dimensions and highly heterogeneous hydroclimatic conditions, Brazil faces water scarcity due to its highly uneven distribution of water resources and intensification of water uses (Gesualdo et al., 2021). Additionally, Brazil is strongly dependent on hydroelectricity: approximately 60% of power generation comes from this sector (Hunt. et al., 2018). Notwithstanding, the country is expected to expand its irrigated areas, which may aggravate water stress (Multsch et al., 2020). This concerning situation will not only affect Brazil but may take on global proportions. Brazil plays a key role in global food security, being one of the largest agricultural producers (Pereira et al., 2012) and having areas classified as a global biodiversity hotspot (Myers et al., 2000). Therefore, understanding the present and future context of Brazilian water availability is urgently needed to ensure the nexus of water-food-energy-ecosystems services and a sustainable future for an increasing global population (McDonald et al., 2014).At long-term temporal scales, water availability, also known as runoff (Q), may be quantified as the difference between precipitation (P) and evapotranspiration (E) (Jawitz et al., 2022). Hence, a precise understanding of P-partitioning into E and Q is fundamental to tackle water availability-related issues, since changes in the

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Section: Resultssupporting

confidence: 91%

Brazilian Water Security Threatened by Climate Change and Human Behavior

Ballarin

Uchôa

Santos

et al. 2023

Water Resources Research

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“…This study conducted a detailed accuracy evaluation of different ET products. However, it should be noted that this study tries to answer the question why the reanalysis differ in the performance of ET from the aspect of its main climate control variables and neglect the impact of other factors, such as vegetation impact [61,101,102], land use/cover changes [62,103], carbon dioxide effect [104,105] and aerosol effect [106,107], which should be investigated in detail in future studies to provide a more comprehensive understanding of the disparities in different ET products' performance. common period of 2003-2015, GLEAM shows a consistent increasing trend with the water balance ET.…”

Section: Discussionmentioning

confidence: 99%

Significant Disparity in Spatiotemporal Changes of Terrestrial Evapotranspiration across Reanalysis Datasets in China from 1982 to 2020

Bai,

Wu,

Mao

2023

Remote Sensing

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Due to limited observational data, there remains considerable uncertainty in the estimation and spatiotemporal variations of land surface evapotranspiration (ET). Reanalysis products, with their advantages of high spatiotemporal resolution, global coverage, and long-term data availability, have emerged as powerful tools for studying ET. Nevertheless, the accuracy of reanalysis ET products varies among different products and the reasons for these accuracy differences have not been thoroughly investigated. This study evaluates the ability of different reanalysis ET products to reproduce the spatiotemporal patterns and long-term trends of ET in China, using remote sensing and water-balance-derived ET as reference. We investigate the possible reasons for their disparity by analyzing the three major climatic factors influencing ET (precipitation, solar radiation, and temperature). The findings reveal that compared to the water balance ET, the Global Land Evaporation Amsterdam Model (GLEAM) product is capable of reproducing the mean, interannual variability, and trends of ET, making it suitable for validating reanalysis ET products. In comparison to GLEAM ET, all reanalysis ET products exhibit consistent climatology and spatial distribution but show a clear overestimation, with multi-year averages being overestimated by 16–40%. There are significant differences among the reanalysis products in terms of interannual variability, long-term trends, and attribution. Within the common period of 2003–2015, GLEAM and water balance ET products demonstrate consistent increasing trends. The second-generation Modern-Era Retrospective analysis for Research and Applications (MERRA2) and the offline (land-only) replay of MERRA (MERRA-Land) could produce similar increasing trends because of the consistent precipitation trends with observed precipitation. The European Centre for Medium-Range Weather Forecasts reanalysis (ERA5) and ERA5-Land cannot capture the consistent increasing trends as they obtain decreasing precipitation. These findings have significant implications for the development of reanalysis products.

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“…Projected P and ET a are likely to decrease by 10 and 14% while recharge (R) and discharge (D) are expected to increase by 38 and 30%, respectively. On the basis of the Budyko framework, Lemaitre-Basset et al (2022) showed that the effect of CO 2 atmospheric concentrations on the water balance limits both ET p and ET a under climate change.…”

Section: Kishawi Et Al Evaluated the Impact Of Redcedar Encroachment ...mentioning

confidence: 99%

Editorial: Impact of anthropogenic disturbances on agroforestry ecosystems

et al. 2023

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This Research Topic features four articles, which are briefly introduced in the following: Bijani et al. applied the POET (Population, Organization, Environment, and Technology) model and SWOT (Surface Water and Ocean Topography) analysis to find the best strategies to reduce and control the water conflict in the Doroodzan dam irrigation network in Fars Province, Iran. According to this study, a regular organization of water beneficiaries helps tackle increasing environmental degradation by reducing negative consequences on the agricultural ecosystem.

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Evapotranspiration in hydrological models under rising CO2: a jump into the unknown

Cited by 12 publications

References 54 publications

Brazilian Water Security Threatened by Climate Change and Human Behavior

Brazilian Water Security Threatened by Climate Change and Human Behavior

Significant Disparity in Spatiotemporal Changes of Terrestrial Evapotranspiration across Reanalysis Datasets in China from 1982 to 2020

Editorial: Impact of anthropogenic disturbances on agroforestry ecosystems

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