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Numerical simulations of the impacts of mountain on oasis effects in arid Central Asia

(2017) ATMOSPHERE. 8(11).
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Abstract
The oases in the mountain-basin systems of Central Asia are extremely fragile. Investigating oasis effects and oasis-desert interactions is important for understanding the ecological stability of oases. However, previous studies have been performed only in oasis-desert environments and have not considered the impacts of mountains. In this study, oasis effects were explored in the context of mountain effects in the northern Tianshan Mountains (NTM) using the Weather Research and Forecasting (WRF) model. Four numerical simulations are performed. The def simulation uses the default terrestrial datasets provided by the WRF model. The mod simulation uses actual terrestrial datasets from satellite products. The non-oasis simulation is a scenario simulation in which oasis areas are replaced by desert conditions, while all other conditions are the same as the mod simulation. Finally, the non-mountain simulation is a scenario simulation in which the elevation values of all grids are set to a constant value of 300 m, while all other conditions are the same as in the mod simulation. The mod simulation agrees well with near-surface measurements of temperature, relative humidity and latent heat flux. The Tianshan Mountains exert a cooling and wetting effects in the NTM region. The oasis breeze circulation (OBC) between oases and the deserts is counteracted by the stronger background circulation. Thus, the self-supporting mechanism of oases originating from the OBC plays a limited role in maintaining the ecological stability of oases in this mountain-basin system. However, the mountain wind causes the cold-wet'' island effects of the oases to extend into the oasis-desert transition zone at night, which is beneficial for plants in the transition region.
Keywords
LAND-SURFACE MODEL, GREEN VEGETATION FRACTION, WESTERN DESERT, CLIMATE-CHANGE, RIVER-BASIN, TARIM BASIN, PART I, CHINA, XINJIANG, REGION, oasis effects, mountain-basin system, oasis breeze circulation, mountain-valley wind, WRF, Central Asia arid area

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Citation

Please use this url to cite or link to this publication:

MLA
Zhang, Miao, Geping Luo, Rafiq Hamdi, et al. “Numerical Simulations of the Impacts of Mountain on Oasis Effects in Arid Central Asia.” ATMOSPHERE 8.11 (2017): n. pag. Print.
APA
Zhang, Miao, Luo, G., Hamdi, R., Qiu, Y., Wang, X., De Maeyer, P., & Kurban, A. (2017). Numerical simulations of the impacts of mountain on oasis effects in arid Central Asia. ATMOSPHERE, 8(11).
Chicago author-date
Zhang, Miao, Geping Luo, Rafiq Hamdi, Yuan Qiu, Xinxin Wang, Philippe De Maeyer, and Alishir Kurban. 2017. “Numerical Simulations of the Impacts of Mountain on Oasis Effects in Arid Central Asia.” Atmosphere 8 (11).
Chicago author-date (all authors)
Zhang, Miao, Geping Luo, Rafiq Hamdi, Yuan Qiu, Xinxin Wang, Philippe De Maeyer, and Alishir Kurban. 2017. “Numerical Simulations of the Impacts of Mountain on Oasis Effects in Arid Central Asia.” Atmosphere 8 (11).
Vancouver
1.
Zhang M, Luo G, Hamdi R, Qiu Y, Wang X, De Maeyer P, et al. Numerical simulations of the impacts of mountain on oasis effects in arid Central Asia. ATMOSPHERE. 2017;8(11).
IEEE
[1]
M. Zhang et al., “Numerical simulations of the impacts of mountain on oasis effects in arid Central Asia,” ATMOSPHERE, vol. 8, no. 11, 2017.
@article{8547620,
  abstract     = {The oases in the mountain-basin systems of Central Asia are extremely fragile. Investigating oasis effects and oasis-desert interactions is important for understanding the ecological stability of oases. However, previous studies have been performed only in oasis-desert environments and have not considered the impacts of mountains. In this study, oasis effects were explored in the context of mountain effects in the northern Tianshan Mountains (NTM) using the Weather Research and Forecasting (WRF) model. Four numerical simulations are performed. The def simulation uses the default terrestrial datasets provided by the WRF model. The mod simulation uses actual terrestrial datasets from satellite products. The non-oasis simulation is a scenario simulation in which oasis areas are replaced by desert conditions, while all other conditions are the same as the mod simulation. Finally, the non-mountain simulation is a scenario simulation in which the elevation values of all grids are set to a constant value of 300 m, while all other conditions are the same as in the mod simulation. The mod simulation agrees well with near-surface measurements of temperature, relative humidity and latent heat flux. The Tianshan Mountains exert a cooling and wetting effects in the NTM region. The oasis breeze circulation (OBC) between oases and the deserts is counteracted by the stronger background circulation. Thus, the self-supporting mechanism of oases originating from the OBC plays a limited role in maintaining the ecological stability of oases in this mountain-basin system. However, the mountain wind causes the cold-wet'' island effects of the oases to extend into the oasis-desert transition zone at night, which is beneficial for plants in the transition region.},
  articleno    = {212},
  author       = {Zhang, Miao and Luo, Geping and Hamdi, Rafiq and Qiu, Yuan and Wang, Xinxin and De Maeyer, Philippe and Kurban, Alishir},
  issn         = {2073-4433},
  journal      = {ATMOSPHERE},
  keywords     = {LAND-SURFACE MODEL,GREEN VEGETATION FRACTION,WESTERN DESERT,CLIMATE-CHANGE,RIVER-BASIN,TARIM BASIN,PART I,CHINA,XINJIANG,REGION,oasis effects,mountain-basin system,oasis breeze circulation,mountain-valley wind,WRF,Central Asia arid area},
  language     = {eng},
  number       = {11},
  pages        = {21},
  title        = {Numerical simulations of the impacts of mountain on oasis effects in arid Central Asia},
  url          = {http://dx.doi.org/10.3390/atmos8110212},
  volume       = {8},
  year         = {2017},
}

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