Regional drying and wetting trends over Central Asia based on Köppen climate classification in 1961–2015

Dilinuer, Tuoliewubieke; Yao, Junqiang; Chen, Jing; Mao, Weiyi; Yang, Liheng; Yeernaer, Humaerhan; Chen, Yuhang

doi:10.1016/j.accre.2021.05.004

Cited by 27 publications

(14 citation statements)

References 50 publications

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“…The drought accounts for approximately 70.5% of BWk climate and increases humidification owing to high monthly mean precipitation. 109 In this study, only Aïn Sefra City in Algeria had a BWk climate (Table 2). A 144 m 3 singlestory building, constructed with concrete, mortar, hollow brick, and tiles, was modeled to determine how microencapsulated PCM (Cp = 3 J/kg K, k = 0.16 W/m K, H f = 170 kJ/kg, T m = 27 C) could influence indoor thermal comfort.…”

Section: Cold Desert Climate (Bwk)mentioning

confidence: 68%

Influence of phase change materials on thermal comfort, greenhouse gas emissions, and potential indoor air quality issues across different climatic regions: A critical review

Amoatey

Al‐Jabri

Al‐Saadi

2022

Intl J of Energy Research

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There has been growing interest in applying phase change materials (PCMs) in buildings owing to their energy conservation/latent heat storage properties and potential to improve thermal comfort. Various reviews have extensively discussed the thermophysical properties of PCMs and their energy-saving potential in buildings. However, comprehensive reviews on the indoor thermal/ personal comfort behavior of PCMs under different climates remain limited. Therefore, this study aims to present a comprehensive state-of-the-art review of the impact of PCMs on indoor thermal comfort levels in buildings located in cities within different subclimate zones and their personal cooling effect when integrated with clothing (vest). In addition, greenhouse gas (GHG) mitigation potentials and indoor air pollutant emission properties of PCM-enhanced buildings were also reviewed. Hundreds of published articles of PCMs in PubMed and Scopus databases, including a manual search approach, were utilized. The results from this state-of-the-art study have shown that incorporating PCMs in buildings satisfactorily reduced the indoor air temperature of most buildings located in hot climate (BSh, BWh) zones, but very limited studies have been performed in the cold (Dfc, BSk) environments. In general, there was an improvement in the thermal comfort levels of the PCM-enhanced buildings. However, these were mostly assessed using indices such as predicted mean vote, predicted percentage of dissatisfied, comfort index, and total discomfort change, without any comprehensive survey studies (eg, based on

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Section: Cold Desert Climate (Bwk)mentioning

confidence: 68%

Influence of phase change materials on thermal comfort, greenhouse gas emissions, and potential indoor air quality issues across different climatic regions: A critical review

Amoatey

Al‐Jabri

Al‐Saadi

2022

Intl J of Energy Research

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“…In the last decade, intra-annual variation of the Ebinur Lake's surface area has shown a consistent pattern; however, the surface area fluctuates during the year. A minor increase in the temperature of Ebinur Lake was observed, possibly due to the effects of climate change (Wang et al, 2014;Hu et al, 2018;Dilinuer et al, 2021). The low precipitation in the region makes maintaining the balance between evaporation in the lake and precipitation difficult, generally resulting in a decrease in the lake area (Gan et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Meteorological driving factors effecting the surface area of Ebinur Lake and determining associated trends and shifts

Yao

Wang²,

Chen³

et al. 2022

Front. Environ. Sci.

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Changes in lake water resources and regional hydrological processes in response to climate change and human activity necessitates timely and accurate access to lake change information to monitor water cycles and water security. The Ebinur Lake Basin has experienced a serious ecological crisis in recent years, which is majorly due to excess use of its water. Therefore, in this study, we used Ebinur Lake as a research object, and used Geographic Information System and remote sensing technology, Landsat, Sentinel, and MODIS images, the Google Earth Engine platform, and the water body index method to determine the changes in lake area from April to October of 2011–2020. Daily data from the Alashankou and Jinghe meteorological stations from 2011 to 2020 were collected. The center of gravity-geographically and temporally weighted regression model was used to analyze the factors changes in surface area. The results showed obvious spatial and temporal heterogeneities for the surface area. Except for 2016, which had unusual/extreme weather, in the last decade, the lake surface area generally showed a monthly decreasing trend from April to October. When Ebinur Lake is one water body, the surface area ranges between 530 and 560 km2. We concluded that the spatio-temporal characteristics of Ebinur Lake can be divided into two levels. When the southeast and northwest regions of the lake merge, it represents the largest possible surface area of Ebinur Lake; this was called the “water storage level”. Historically, Ebinur Lake has lost significant amounts of water, and there is no water body connecting the two main parts of the lake (thereby dividing the lake into two areas); this was called “water demand level”. The trajectory of the center of gravity of the lake is linear, with a slope of 45° and a direction of northwest to southeast. The lake gravity center has different aggregation states. According to the season, it can be divided into spring gathering and autumn gathering. The variation in the surface area of Ebinur Lake is highly correlated with the meteorological and hydrological variation during the year. The highest correlation was observed between lake surface area and wind speed. This study aimed to supplement other studies that explore the lake annually and provide a reference for future water resources management and planning.

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“…Central Asia is characterized by a semi-arid to an arid climate and as such it is one of the driest regions in the world (Xu et al, 2007;Chen et al, 2011;Gessner et al, 2013;Guo et al, 2018), making it particularly vulnerable to extreme precipitation events, such as droughts and floods (Huang et al, 2016;Dilinuer et al, 2021;Guo et al, 2021;Jiang and Zhou, 2021). The annual cumulative precipitation of central Asia is less than 300 mm and the region is characterized by water resource scarcity, limited vegetation growth, wildfires, and vast barren landmasses (Huang et al, 2016;Hu et al, 2017;Xu et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Evaluation and multimodel projection of seasonal precipitation extremes over central Asia based on CMIP6 simulations

Dike

Lin

Kece

et al. 2022

Intl Journal of Climatology

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Central Asia faces an increasing challenge related to water resources arising from severe droughts and floods that have impacted the region in the past decades. Using a comprehensive set of extreme precipitation indices, we assess the performance of CMIP6 models in representing observed precipitation extremes and investigate future responses of these extremes to greenhouse gas emissions under four shared socioeconomic pathways (SSP). Particularly, this study identifies robust signals of projected changes in spring and summer precipitation extremes over central Asia. Results show that the CMIP6 models reasonably reproduced the spatial distribution and variability of precipitation extremes over southern central Asia (SCA) and northern central Asia (NCA) during the spring and summer seasons, respectively. Across the SSPs, the CMIP6 models project a decrease in total spring wet‐day precipitation amount (PRCPTOT) over SCA and a significant increase in PRCPTOT over the NCA. The projected changes are characterized by a significant increase in maximum consecutive 5‐day precipitation (RX5day), wet‐day intensity (SDII), and the number of heavy precipitation days (R10mm); these suggest that the spring will be characterized by intense precipitation extremes. Moreover, no significant change is projected for consecutive wet days (CWD) and dry spells (CDD) over SCA. Nonetheless, the CMIP6 models project a significant increase in summer PRCPTOT over SCA and a decrease in summer PRCPTOT, RX5day, R10mm, SDII, and CWD over NCA while projecting a significant and robust increase in dry spells. It is also found that the severity of the projected dry spell deepens across the SSP spectra and gets more pronounced towards the end of the 21st century. Notably, the intermodel spread of the precipitation extremes is smaller during the spring over SCA, larger during the summer season over NCA, and more probable in the warmer future.

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Regional drying and wetting trends over Central Asia based on Köppen climate classification in 1961–2015

Cited by 27 publications

References 50 publications

Influence of phase change materials on thermal comfort, greenhouse gas emissions, and potential indoor air quality issues across different climatic regions: A critical review

Influence of phase change materials on thermal comfort, greenhouse gas emissions, and potential indoor air quality issues across different climatic regions: A critical review

Meteorological driving factors effecting the surface area of Ebinur Lake and determining associated trends and shifts

Evaluation and multimodel projection of seasonal precipitation extremes over central Asia based on CMIP6 simulations

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