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Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (1): 229-241.DOI: 10.7522/j.issn.1000-694X.2025.00137

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Progress in spatial and temporal simulation of dew in arid regions

Kaiyu Liu1,2,4(), Yanli Zhuang1,2(), Wenzhi Zhao1,2, Quntao Duan3,4, Baili Chen3,4, Renjie Huang3,4, Tingting Sun3,4, Lihui Luo3   

  1. 1.Linze Inland River Basin Research Station /, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands,China Ecosystem Research Network /, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    3.Gansu Provincial Industry Technology Center of Intelligent Equipment & Big Data for Disaster Prevention, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    4.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2025-04-16 Revised:2025-05-28 Online:2026-01-20 Published:2026-03-09
  • Contact: Yanli Zhuang

Abstract:

Dew is a source of water formed on the surface of an object by gaseous water in the atmosphere when the surface temperature of the object drops to the dew point temperature. In arid regions with limited water resources, dew serves as a crucial water supply source in ecosystems. This paper systematically reviews the formation conditions and observation methods of dew, discusses the applicability and limitations of empirical models, physical models, semi-empirical models, and artificial intelligence algorithms, analyzes the temporal variation patterns and spatial distribution characteristics of dew volume along with its response mechanisms to climate change, and points out that current spatiotemporal simulation accuracy is primarily constrained by data precision, parameter simplification, and the complex heterogeneity of underlying surfaces. Building on these findings, future research should deepen the analysis of the influence mechanisms of natural underlying surfaces on dew to enhance model adaptability in complex environments, integrate multi-source data to drive artificial intelligence algorithms combined with physical models for simulating the spatiotemporal distribution patterns of dew, and strengthen studies on the ecological effects of dew under climate change scenarios.

Key words: arid regions, dew, artificial intelligence, spatial and temporal simulation

CLC Number: