Effects on Local Temperature and Energy of Oasis City Expansion in Arid Area of Northwest China

Zhang, Miao; Luo, Geping; Cai, Peng; Hamdi, Rafiq

doi:10.1155/2020/3282475

Cited by 3 publications

(2 citation statements)

References 47 publications

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“…The ALARO model (Termonia et al, 2018) has proven to be a state-of-the-art climate model, especially for precipitation and its extremes (De Troch et al, 2013;Giot et al, 2016). While previous efforts with ALARO focused on Belgium and Europe, ALARO was also found to be very reliable for central Asia (Top et al, 2021;Vannoppen et al, 2020) and China (Cai et al, 2020;Yang et al, 2020;Zhang et al, 2020).…”

Section: Data: Alaro-0 Model Simulationmentioning

confidence: 99%

Topoclimate and diurnal cycle of summer rain over the Ethiopian highlands in a convection‐permitting simulation

Negash,

Van Schaeybroeck,

Termonia

et al. 2023

Intl Journal of Climatology

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Topoclimate, orographically enhanced rain on windward slopes and leeward rain shadows, control rainfall variability in tropical mountains. Such variability may cause a substantial societal impact in populated highlands such as in Ethiopia. This study aims at understanding the rainfall diurnal cycle and the orographic driving factors over the Ethiopian highlands using the ALARO‐0 regional climate model at convection‐permitting resolution, over a period of 21 years. While the evaluation against satellite‐based observations shows a too early onset of the model diurnal cycle and a too low nocturnal rainfall, several conclusions can be drawn from the model simulations presented here. Elevation is the most important determining factor for modelled rainfall with increased average rainfall and rainfall per rainfall event towards higher elevations. Ethiopia's simulated summer rain exhibits a pronounced diurnal cycle with the highest rainfall occurring during the early afternoon hours and the minimum values occurring in the late night. Average rainfall and rainfall per rainfall event are substantially larger on the windward sides than on the leeward sides of the mountains, except during the peak hours. The diurnal cycles of temperature and humidity start earlier in the morning and recede later than the cycles of wind speed and rainfall. Moreover, rainfall peaks occur earlier in the day at higher elevations, and at night in valleys and in Afar Triangle. Rain intensities around noon on the leeward side are slightly higher than those on the windward side of the highest mountains (>3000 m). This could be due to delayed onset of cloudiness and larger morning insolation on the leeward side of the mountain, but this needs further study. The prevalence of windward over leeward rainfall, the stark contrast in wind‐speed diurnal cycle between windward and leeward slopes, and the early peak hour of surface air and dew point temperature all point towards temperature‐induced rather than wind‐induced convection. These differences are likely to determine hydrology and vegetation distribution, and farmers economy at large. Hence, the need for a way out from the ‘one‐size‐fits‐all’ agro‐ecosystem management approach towards a site‐specific policy that takes into account climatic differences.

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Section: Data: Alaro-0 Model Simulationmentioning

confidence: 99%

Topoclimate and diurnal cycle of summer rain over the Ethiopian highlands in a convection‐permitting simulation

Negash,

Van Schaeybroeck,

Termonia

et al. 2023

Intl Journal of Climatology

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“…Ecosystems not only enhance productivity but also, by their services, provide for human well-being, health, livelihoods, and survival 1 – 7 . Ecosystem services have become important in research and policymaking 8 – 10 , so natural capital quantification and conceptualization have received much attention. The value of global ecosystem services in 1997 was estimated to be about USD 33 trillion per year 7 , 10 , which is a figure higher than the global gross domestic product at the time.…”

Section: Introductionmentioning

confidence: 99%

Changes in total and per-capital ecosystem service value in response to land-use land-cover dynamics in north-central Ethiopia

Birhane,

Negash,

Getachew

et al. 2024

Sci Rep

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Ecosystems provide a wide range of services crucial for human well-being and decision-making processes at various levels. This study analyzed the major land cover types of north-central Ethiopia and their impact on total and per-capita ecosystem service value (ESV). The ESV was estimated using the benefit-transfer method along the established global and local coefficient values for the periods 1973, 1986, 2001, 2016, and 2024. The findings show that agricultural lands continued to expand at a rate of 563.4 ha year−1, at the expense of forests and grasslands. As a result, the total ESV of the study area declined from $101.4 to $61.03 million and $60.08–$43.69 million, respectively. The ESV per capita was also diminished by $152.4 (37.7%) and $257 (40.6%), respectively. However, land-cover improvement during the period 2001–2016 enhanced the total and per capita ESV in the study area. Therefore, potential future research may be required to develop a valid approach for assessing the robustness and sensitivity of value coefficients for the valuation of the ESV at the landscape level.

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Isolating the direct and indirect impacts of urbanization on vegetation carbon sequestration capacity in a large oasis city: evidence from Urumqi, China

Zhuang

Shao

et al. 2022

Geo-spatial Information Science

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Effects on Local Temperature and Energy of Oasis City Expansion in Arid Area of Northwest China

Cited by 3 publications

References 47 publications

Topoclimate and diurnal cycle of summer rain over the Ethiopian highlands in a convection‐permitting simulation

Topoclimate and diurnal cycle of summer rain over the Ethiopian highlands in a convection‐permitting simulation

Changes in total and per-capital ecosystem service value in response to land-use land-cover dynamics in north-central Ethiopia

Isolating the direct and indirect impacts of urbanization on vegetation carbon sequestration capacity in a large oasis city: evidence from Urumqi, China

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