Passive microwave remote sensing of lake freeze-thaw over High Mountain Asia

Ruan, Yongjian; Qiu, Yubao; Yu, Xiaoqi; Guo, Huadong; Cheng, Bin

doi:10.1109/igarss.2016.7729728

Cited by 7 publications

(5 citation statements)

References 9 publications

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“…Using optical remote sensing, researchers have successfully identified the lake ice phenology of various regions on the basis of data from different instruments like advanced very high resolution radiometer (AVHRR) sensor [19] and moderate resolution imaging spectroradiometer (MODIS) [15]. Some other researchers [10,12,[26][27][28] have tried to investigate the dynamics of lake ice by using microwave data (QuickSCAT, SSM/I, SMMR, AMSR-E). Based on passive microwave data, researchers are now able to measure lake ice phenology parameters, such as ice-cover duration [10,29].…”

Section: Introductionmentioning

confidence: 99%

Uncertainty and Variation of Remotely Sensed Lake Ice Phenology across the Tibetan Plateau

Guo

Zheng

et al. 2018

Remote Sensing

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In the Tibetan Plateau (TP), the changes of lake ice phenology not only reflect regional climate change, but also impose substantial ecohydrological impacts on the local environment. Due to the limitation of ground observation, remote sensing has been used as an alternative tool to investigate recent changes of lake ice phenology. However, uncertainties exist in the remotely sensed lake ice phenology owing to both the data and methods used. In this paper, three different remotely sensed datasets are used to investigate the lake ice phenology variation in the past decade across the Tibetan Plateau, with the consideration of the underlying uncertainties. The remotely sensed data used include reflectance data, snow product, and land surface temperature (LST) data of moderate resolution imaging spectroradiometer (MODIS). The uncertainties of the three methods based on the corresponding data are assessed using the triple collocation approach. Comparatively, it is found that the method based on reflectance data outperforms the other two methods. The three methods are more consistent in determining the thawing dates rather than the freezing dates of lake ice. It is consistently shown by the three methods that the ice-covering duration in the northern part of the TP lasts longer than that in the south. Though there is no general trend of lake ice phenology across the TP for the period of 2000–2015, the warmer climate and stronger wind have led to the earlier break-up of lake ice.

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Section: Introductionmentioning

confidence: 99%

Uncertainty and Variation of Remotely Sensed Lake Ice Phenology across the Tibetan Plateau

Guo

Zheng

et al. 2018

Remote Sensing

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“…However, lake ice data are not available when lakes are covered by clouds or if deep shadows are present in the optical images. Further, brightness temperature from passive microwave remote sensors (e.g., SMMR [156][157][158], AMSR-E [159], and SSM/I [160]) is performed to retrieve lake ice phenology and thickness with low spatial resolution. Finally, the active microwave technique is proficient in monitoring lake ice phenology with sensors such as ERS-1/2 SAR [161] and Radarsat-1/2 SAR [162], although its narrow swath width and relatively low temporal resolution limit its application.…”

Section: Lake Icementioning

confidence: 99%

“…Microwave remote sensing techniques are good for viewing the land surface at any time of day, regardless of cloud cover. Among them, passive microwave brightness temperature data from space have been widely applied in snow cover [277], snow depth [112,278], SWE [209,279], ground surface freeze-thaw state [124], permafrost map [129], permafrost active layer thickening rate [280], lake ice phenology [159], lake ice thickness [281]. In contrast, active spaceborne microwave techniques provide higher spatial resolution and facilitate the study of subsurface structural properties by penetrating signals through the land surface, e.g., ice, snow, and frozen ground.…”

Section: Summary Of Cryosphere Studies From Spacementioning

confidence: 99%

Remote Sensing and Modeling of the Cryosphere in High Mountain Asia: A Multidisciplinary Review

Ye,

Wang,

Liu

et al. 2024

Remote Sensing

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Over the past decades, the cryosphere has changed significantly in High Mountain Asia (HMA), leading to multiple natural hazards such as rock–ice avalanches, glacier collapse, debris flows, landslides, and glacial lake outburst floods (GLOFs). Monitoring cryosphere change and evaluating its hydrological effects are essential for studying climate change, the hydrological cycle, water resource management, and natural disaster mitigation and prevention. However, knowledge gaps, data uncertainties, and other substantial challenges limit comprehensive research in climate–cryosphere–hydrology–hazard systems. To address this, we provide an up-to-date, comprehensive, multidisciplinary review of remote sensing techniques in cryosphere studies, demonstrating primary methodologies for delineating glaciers and measuring geodetic glacier mass balance change, glacier thickness, glacier motion or ice velocity, snow extent and water equivalent, frozen ground or frozen soil, lake ice, and glacier-related hazards. The principal results and data achievements are summarized, including URL links for available products and related data platforms. We then describe the main challenges for cryosphere monitoring using satellite-based datasets. Among these challenges, the most significant limitations in accurate data inversion from remotely sensed data are attributed to the high uncertainties and inconsistent estimations due to rough terrain, the various techniques employed, data variability across the same regions (e.g., glacier mass balance change, snow depth retrieval, and the active layer thickness of frozen ground), and poor-quality optical images due to cloudy weather. The paucity of ground observations and validations with few long-term, continuous datasets also limits the utilization of satellite-based cryosphere studies and large-scale hydrological models. Lastly, we address potential breakthroughs in future studies, i.e., (1) outlining debris-covered glacier margins explicitly involving glacier areas in rough mountain shadows, (2) developing highly accurate snow depth retrieval methods by establishing a microwave emission model of snowpack in mountainous regions, (3) advancing techniques for subsurface complex freeze–thaw process observations from space, (4) filling knowledge gaps on scattering mechanisms varying with surface features (e.g., lake ice thickness and varying snow features on lake ice), and (5) improving and cross-verifying the data retrieval accuracy by combining different remote sensing techniques and physical models using machine learning methods and assimilation of multiple high-temporal-resolution datasets from multiple platforms. This comprehensive, multidisciplinary review highlights cryospheric studies incorporating spaceborne observations and hydrological models from diversified techniques/methodologies (e.g., multi-spectral optical data with thermal bands, SAR, InSAR, passive microwave, and altimetry), providing a valuable reference for what scientists have achieved in cryosphere change research and its hydrological effects on the Third Pole.

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“…AQK is located in the southeast of Ruoqiang County, at the northern foot of the Kunlun Mountains and within the Altun Mountain Nature Reserve. It is a saltwater lake with an area of 350 km 2 [35]. The lake is 4240 m above sea level, with an average depth of 8 m and a maximum depth of 25 m, with injections of AQK, etc.…”

Section: Micrometeorological Observationmentioning

confidence: 99%

Micrometeorological Analysis and Glacier Ablation Simulation in East Kunlun

Wang,

Sun,

Che

et al. 2023

Water

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Worldwide, there are great challenges for meteorological monitoring and glacier ablation monitoring in high-altitude mountain areas. It is often difficult to capture fine-scale climate and glacial changes in high-altitude mountainous areas due to the harsh natural environment and the extreme lack of observational sites. Based on high-altitude meteorological stations erected on the eastern shore of Aqikkule Lake (AQK) and at the terminus of Shenshechuan Glacier (SSG), as well as on mass balance data from SSG, the characteristics and correlation of temperature, solar radiation, relative humidity, precipitation, wind speed and direction of the two regions, and the mass balance in the ablation area of SSG from 30 May 2022 to 18 May 2023 were analyzed, and the average melting depth of SSG was simulated. The results indicate the following: (1) The average annual temperature of AQK and the terminus of SSG is −3.7 °C and −7.7 °C, respectively, and the vertical lapse rate of temperature in the summer half of the year is greater than that in the winter half of the year. Precipitation timing has a great influence on daily temperature differences. (2) Precipitation in both places is concentrated in summer; the glaciers in this area are of the summer recharge type, and precipitation has a significant reducing effect on the solar incident radiation and increases the relative humidity in this region. (3) AQK and SSG both have local circulation development, in the area of AQK all year round due to the lake effect, while the terminus of SSG only has the development of valley winds in the summer, being controlled in the winter by the westerly wind belt. (4) The average mass balance value of the ablation area of SSG was −1786 mm as measured by the range poles method. The average annual ablation depth of SSG simulated by using the empirical formula was 587–597 mm, which is not large compared with other glacier areas in the Tibetan Plateau, and it has the characteristics of typical continental-type glaciers.

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Passive microwave remote sensing of lake freeze-thaw over High Mountain Asia

Cited by 7 publications

References 9 publications

Uncertainty and Variation of Remotely Sensed Lake Ice Phenology across the Tibetan Plateau

Uncertainty and Variation of Remotely Sensed Lake Ice Phenology across the Tibetan Plateau

Remote Sensing and Modeling of the Cryosphere in High Mountain Asia: A Multidisciplinary Review

Micrometeorological Analysis and Glacier Ablation Simulation in East Kunlun

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