The Status of Glacial Lakes in the Hindu Kush Himalaya - ICIMOD Research Report 2018/1

2018 ◽  
Author(s):  
S. B. Maharjan ◽  
P. K. Mool ◽  
W. Lizong ◽  
G. Xiao ◽  
F. Shrestha ◽  
...  
2021 ◽  
Vol 5 (1) ◽  
pp. 1-13
Author(s):  
P.C. Shakti ◽  
Ishwar Pun ◽  
Rocky Talchabhadel ◽  
Darshan Kshetri

Nepal is a mountainous country rich in water resources, with huge potential for hydropower generation. The Department of Electricity Development (DoED), which sits within the Nepalese Ministry of Energy, has published Guidelines for Study of Hydropower Projects to set out the official standards for the detailed study of hydropower projects in Nepal. The guide is regularly revised, with the latest revision having taken place in 2018, in order to ensure the long-term sustainability of the projects. Among the key issues considered are the linkages between glaciers and hydropower projects in Nepal under a changing environment. The formation of new glacial lakes and the potential for glacial lake outburst floods (GLOFs) are recent challenges in the Himalayan region. As such, any change impacting these processes may have serious consequences on hydropower projects or cause severe damage to these projects across the country, whether they are in the planning phase, under construction, or completed. This paper aims to make the connection between the status of hydropower projects in Nepal and the state of glaciers in the Himalayas, and suggests that advanced studies on glacial lakes and GLOFs are needed to ensure the long-term sustainability of hydropower projects under changing climate.


2021 ◽  
Author(s):  
Saket Dubey ◽  
Manish Goyal ◽  
Ashim Sattar ◽  
Umesh Haritashya

<p>The Hindu-Kush-Himalayan region is home to numerous glacial lakes. Some of these lakes could fail and produce hazardous Glacial Lake Outburst Floods (GLOF). GLOFs are primarily triggered by an avalanche or a rockfall entering the lake that generates an overtopping displacement waves. In the present study, we investigate the susceptibility of all lakes present in the Hindu-Kush-Karakorum (HKH) region (Randolph Glacier inventory region 14 and 15) to the dynamic mass movement (avalanche and rockfall). Avalanche and rockfall trajectories are developed considering various depths and “Minimum Look-Up Angle” (MLUA: a term used to define the avalanche runout distance). These trajectories are also validated against the results obtained from the Rapid Mass Movement Simulation (RAMMS) model. The mass movement of avalanche or rockfall along the major axis may enhance the wave run-up leading to a higher impact on the damming structure. Therefore, each susceptible lake is critically assessed for the angle of intrusion of a mass movement. The stability of the glacial lakes was also evaluated using the steep lake front area method to understand the associated hazard. Obtained results suggest that out of 3725 glacial lakes, 239 are susceptible to an avalanche when the mean avalanche depth is considered 50 m, and only 43 if the assumed mean avalanche depth is reduced to 10 m. Furthermore, the rockfall trajectories suggest that 343 lakes are susceptible to rockfall while considering MLUA of 17˚, which falls to 217 when MLUA is increased to 23˚. Overall, glacial lakes in the Central Himalayas were more susceptible to mass movement than the Karakoram, Western and Eastern Himalayas. We hope that our work will enable stakeholders to make a well-informed decision for hazard management in the Hindu-Kush-Himalayas. In addition to this, developed avalanche and rockfall trajectories will also help identify critical regions and hazard susceptibility structures.</p>


2020 ◽  
Vol 218 ◽  
pp. 01025
Author(s):  
Zhengxiang Wang

Internet live broadcast marketing (LBM) is an important form of product exchange in the era of post Covid-2019, and it is the fifth revolution of retail industry characterized by “new retail”. From the process of evolution and development of webcast, this paper systematically analyzes the characteristics of LBM with empirical research methods, as well as imbalance of the input and output of LBM, the “high income but low ability” of the anchors, and suspected false propaganda. This paper is aimed to analyze the specific cases from the perspective of “people, goods and markets” in terms of the unique laws of retail industry, using the traditional “4P” theory of marketing management and the new thinking of marketing 4.0 in the digital era, and to put forward specific suggestions. Meanwhile, this paper will start from the status quo of the most important core element of LBM - anchor talent, and suggests some specific training programs for the improvement of the anchor talent. Based on McKinsey’s China Research Report, this study also analyzes the trend from global supply-chain to regional evolution in the era of post Covid-2019, especially the characteristics of gradually increasing trade interdependence between Southeast Asian countries. It is suggested that colleges and universities should speed up the cultivation of interdisciplinary anchor talents with both “bilingual” skills and marketing knowledge, to promote the development of LBM in Southeast Asian countries. Finally, this study gives specific suggestions on the establishment and improvement of laws and regulations in the live broadcast economy, to call on the attention of the government agencies, and lead the live broadcast economy to the track of sustainable development.


Geomorphology ◽  
2017 ◽  
Vol 283 ◽  
pp. 72-79 ◽  
Author(s):  
Arshad Ashraf ◽  
Rozina Naz ◽  
Muhammad Bilal Iqbal

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