Desert Environment and Climate Observation Network over the Taklimakan Desert

Yang, Fan; He, Qing; Huang, Jianping; Mamtimin, Ali; Yang, Xinghua; Huo, Wen; Zhou, Chenglong; Liu, Xinchun; Wang, Wei; Cui, Caixia; Wang, Minzhong; Liu, Hongjun; Yang, Liheng; Zhang, Hongsheng; Liu, Yuzhi; Zheng, Xiaodong; Pan, Honglin; Jin, Lili; Han, Zhiwei; Zhou, Libo; Liu, Yongqiang; Zhang, Jiantao; Meng, Lei; Wang, Yu; Qin, Xiaolin; Yao, Yongjun; Liu, Houyong; Xue, Fei; Zheng, Wei

doi:10.1175/bams-d-20-0236.1

Cited by 27 publications

(21 citation statements)

References 43 publications

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“…The completion of condensation-type pore lling at RHs as low as $22% suggests that substantial water harvesting may be possible even in inland deserts, such as the Taklimakan desert (northwestern China; typical conditions: 45 C, 5% RH (day), and 25 C, 20% RH (night)). 37 Calculated for MOF-808-Cl and MOF-808-Br, respectively, are working capacities of 0.41 and 0.38 g g À1record high values for these conditions.…”

mentioning

confidence: 80%

Incorporation of free halide ions stabilizes metal–organic frameworks (MOFs) against pore collapse and renders large-pore Zr-MOFs functional for water harvesting

Duan

et al. 2022

J. Mater. Chem. A

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confidence: 80%

Incorporation of free halide ions stabilizes metal–organic frameworks (MOFs) against pore collapse and renders large-pore Zr-MOFs functional for water harvesting

Duan

et al. 2022

J. Mater. Chem. A

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“…Two stations (Figure 1) were selected to represent a typical, relatively flat desert and undulating desert terrain; these were the XT Station, on the northern margin of the Taklamakan Desert, and the TZ Station, in the hinterlands of the Taklamakan Desert [51]. The 100 m gradient observation in XT and the 80 m gradient observation system in TZ were carried out simultaneously.…”

Section: Experimental Designmentioning

confidence: 99%

Relationships between Near-Surface Horizontal Dust Fluxes and Dust Depositions at the Centre and Edge of the Taklamakan Desert

Huo

Song

et al. 2022

Land

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The emission, transport, and deposition of dust are frequently the focus of dust aerosol studies. However, owing to limited observation data, few studies have examined the relationships between the key parameters of dust transport, especially in typical dust source areas. Therefore, investigating the relationship between near-surface horizontal dust fluxes and dust depositions in typical desert source areas can further help us to understand the movement and transport patterns of dust aerosols. Based on observational experiments on two key transport parameters, this study focused on the quantitative relationship between the horizontal dust flux (Q) and dust deposition (D). A 13-month long dust sample collection experiment was conducted from August 2017 to August 2018 at Xiaotang Station (hereafter XT,40°48′ N, 84°18′ E) and Tazhong Station (hereafter TZ, 39°00′ N, 83°40′ E). The results show that the observed D and Q peaks coincided with periods of high dust storm incidence, with the greatest accumulation observed in spring. Moreover, both Q and D decreased with increasing height in XT, and this phenomenon remained on a monthly scale. In contrast, no clear decreasing pattern in Q and D with increasing height was observed in TZ. Additionally, relatively coarse particles, primarily from local sources, dominated dust depositions in both locations. The proportion of deposited dust particles with a size <20 μm was slightly higher in XT than that in TZ. Specifically, dust depositions in XT contained finer local dust particles and more dust from long-distance transport. Furthermore, D and Q had a significantly positive linear correlation in XT; however, no significant correlation was observed in TZ. Analysis of the wind dynamics and surface dust particle size indicated that topographic differences between the two stations caused these differences in correlation.

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“…Taklimakan Desert, the largest desert in China, is an important source of global dust aerosols. Yang et al [42] established a Desert Environment and Climate Observation Network (DECON) for field research of dust-storms in the Taklimakan Desert region. Soil moisture and soil temperature were reported as important factors that could influence dust emissions.…”

Section: Local Strong Thunderstorms In Northwestern Chinamentioning

confidence: 99%

“…Wind speed >25 m s −1 [24,49] Visibility <50 m [27,49] Duration Tens of minutes [24,37] Shape Dust wall, lobe-shaped [34,44] Differences Cause Thermal convection [49] Moisture convection and thermal convection [17] Region Northern Africa [23][24][25][26]; Middle East [17,18,[27][28][29]; Southwestern North-America [22,30,32,36] Northwestern China [9,[37][38][39][40][41][42][43][44][45][46][47][48][49][50]52,53] Season Dry season [49] Wet season [36] Weather No rain [49,50] Thunderstorms and precipitation [15,51] Mesoscale simulation Two-dimensional non-hydrostatic cloud model [50]; integrated operational dust numerical...…”

Section: Similaritiesmentioning

confidence: 99%

An Overview of Triggering Mechanisms and Characteristics of Local Strong Sandstorms in China and Haboobs

Zhang

et al. 2021

Atmosphere

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The local strong sandstorms (LSS), similar to haboobs in Sahara and the North America, often occur suddenly, in tens of minutes during the late afternoon, and before dusk in deserts in China, causing a significant impact on the local atmospheric environment. The Sudan haboob or American haboob often appears in the wet season, followed by thunderstorm events. In contrast, the LSS in China appears most frequently in relatively dry season. The lack of observational data in weather conditions before their formation, during their development and after their disappearance have hindered our understanding of the evolution mechanism of LSS/haboobs. This paper provides a review of the current status and model studies on LSS/haboobs in different time and space to characterize the weather conditions and triggering mechanisms for LSS/haboobs occurrence, as well as highlight the subject for further understanding of LSS/haboobs. LSS are always followed by the occurrence of a dry squall. The interaction of dust radiation heating in the near-surface mixing layer with a mesoscale anticyclone air mass (cold-air pool) in the upper layer is the key process that leads to an LSS. Haboobs are followed by the occurrence of a wet squall. The release of latent heat due to the condensation of water vapor, involving moist convection and cold downdraughts, is the main driving force that cause the occurrence of a haboob. For a better understanding of the characteristics of the wind-sand two-phase flow and the mechanism of energy dissipation in LSS/haboobs, further accumulation of meteorological observation data and small-scale multiple-phase numerical simulations are required.

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Desert Environment and Climate Observation Network over the Taklimakan Desert

Abstract: CAPSULEThe Desert Environment and Climate Observation Network (DECON) could promote collaborative research on desert dust-storms, boundary-layer and land-atmosphere interactions to better understand the status and role of the Taklimakan desert.

Cited by 27 publications

References 43 publications

Incorporation of free halide ions stabilizes metal–organic frameworks (MOFs) against pore collapse and renders large-pore Zr-MOFs functional for water harvesting

Incorporation of free halide ions stabilizes metal–organic frameworks (MOFs) against pore collapse and renders large-pore Zr-MOFs functional for water harvesting

Relationships between Near-Surface Horizontal Dust Fluxes and Dust Depositions at the Centre and Edge of the Taklamakan Desert

An Overview of Triggering Mechanisms and Characteristics of Local Strong Sandstorms in China and Haboobs

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