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30 June 2022

Zarilang Glacier, China Retreat and Lake Expansion

Zarilang Glacier in 1998 and 2021 Landsat images illustrating glacier retreat and lake expansion. Point A marks the junction of two tributaries. Zarilang Glacier, China  flows north from the Bhutan border is in the Yarlung Zangbo River watershed draining the northwest flank of Kula Kangri. Yarlung Zangbo which becomes the Brahmaputra River supplies the Zangmu Dam (510 MW), online in 2015, that produces 2.5 billion kwh of electricity a year. …


4 November 2021

Drogpa Nagtsang Glacier, China 2021 Snow Line Positions Lake Expansion

Drogpa Nagtsang Glacier, China retreat and proglacial expansion in 1993 and 2021 Landsat images. Red arrow is the 1993 terminus, yellow arrow the 2021 terminus and yellow dots are the snowline. Drogpa Nagtsang Glacier, China is 30 km west of Mount Everest terminating in an expanding proglacial lake. The glacier begins on the Nepal border at 6400 m, and its meltwater enters the Tamakoshi River that supplies the Upper Tamakoshi …


22 May 2021

Mena Kang West Glacier retreat and lake expansion, Tibet, China

    Mena Kang West Glacier in 2002, 2020 and 2021 Landsat images.  Red arrow is the 2000 terminus location, yellow arrow the 2021 terminus location and pink dots the snowline. “Mena Kang West” Glacier is an unnamed glacier that is to the west of Mena Kang (6140 m) at 28 N, 91.6 W in Tibet, China. The glacier drains into the Nyamjang Chu, which flows south in Arunachal Pradesh, …


18 March 2021

Bailang and Angge Glacier, China Retreat and Lake Expansion 1995-2020

Bailang (B) and Angge Glacier (A) in 1995 and 2020 Landsat images indicating retreat and lake expansion. Red arrow is the 1995 terminus location, yellow arrow the 2020 terminus location, purple arrow rock ridges that expand separating tributaries. Chubda Glacier (C) to the south and an unnamed glacier Point D between Angge and Bailang. Bailang Glacier and Angge Glacier, China are adjacent to the Chubda Glacier, Bhutan, They drain north from …


1 October 2020

Jiemayangzong Glacier, Tibet Retreat, Separation and Lake Expansion 1991-2020

Jiemayangzong Glacier in 1991 and 2020 Landsat images.  The red arrow is the 1991 terminus location, yellow arrow is the 2020 terminus location and purple dots mark the snowline. Point A indicates a tributary that has disconnected, while bedrock expanded at Point B.  Jiemayangzong Glacier drains east from 6200 m peaks along the Nepal-China border. The glacier ends in a lake- Jiemayangzong Tso. Ren et al (2016)  identify this as …


27 January 2020

Reqiang and Jicongpu Glacier Retreat, Lake Expansion and Moraine Stability Increase

Reqiang Glacier (R) and Jicongpu Glacier (J) in 1993 and 2019 Landsat images.  M=Moraine, red arrow is the 1993 terminus location, yellow arrow the 2019 terminus location and purple dots the snowline. Requiang Glacier, Tibet is just east of Shishapangma Mountain one of planets 14 peaks that exceed 8000 m and terminates in the rapidly expanding proglacial lake Gangxico at 5200 m. Jicongpu Glacier drains south from Shishapangma terminating in …


10 November 2019

Shie Glacier, Bhutan-China Retreat Reduces Lake Contact

Shie Glacier Bhutan-China in Landsat images from 1996 and 2019.  Red arrow is the southern terminus location in 1996, yellow arrow the 2019 terminus location and red dots the margin of the eastern terminus in contact with the lake in 1996. Shie Glacier terminates in a lake on the northern flank of the Bhutan Himalaya draining north from Kangphu Kang, in a region that is claimed by both China and …


10 June 2019

Asejiaguo Glacier, China Retreat and Lake Expansion

Asejiaguo Glacier in Landsat images from 1993 and 2018.  The yellow arrow indicates the 2018 terminus and the red arrow the 1993 terminus location.  Point 1 and 2 are areas of expanding bedrock in the 5400-5600 m. Asejiaguo Glacier drains east from the China-Nepal Border and is at the headwaters of the Yarlung Tsangpo, which becomes the Brahmaputra River.  The Yarlung Tsangpo powers the 510 MW Zangmu Hydropower Station.  Gardelle …


4 June 2019

Daishapu Glacier, China Retreat Lake Expansion

Daishapu Glacier (D) and Ruorangqubu Glacier (R) in 1993 and 2018 Landsat images.  The yellow arrows indicate the 2018 terminus location of both glaciers and the purple dots the snowline. Notice the lake expansion at the terminus of both glaciers. Locations 1-4 are tributaries. Daishapu Glacier and Ruorangqubu Glacier are in the eastern Himalaya located just north of the Himalayan divide and draining north into the Yarlung Zangbo. This is …


26 October 2018

Lapche Glacier, China Supraglacial Ponds Transitioning to Lake

Lapche Glacier (Tibet 1), China in 1992 and 2018 Landsat images.  The expansion of supraglacial ponds is evident between Point 2 and 3. A tributary that detaches between 1992 and 2018 is indicated by red arrow.  The end of the clean ice and start of debris cover ice is just below Point 1 in 1992 and well above this Point in 2018.  Lapche Glacier (Tibet 1), China flows east from …


2 October 2018

High Glacier Snow Line Post-Monsoon 2018 on Bhutan-China Border

Angge Glacier (A) and Bailang Glacier (B) in China and Chubda Glacier (C) in Bhutan in Post Monsoon 1995 and 2018 Landsat images indicating the snowline purple dots is exceptionally high in 2018.  Red arrow is the 1995 terminus location and yellow arrows the 2018 terminus location. Point 1-3 are glacier passes from China into Bhutan. The end of the monsoon season leads to finally some clear satellite images of …


21 September 2018

Duiya Glacier, China Retreat Drives Lake Expansion

Duiya Glacier, China in 1990 and 2017 Landsat images.  Red arrow indicates 1990 terminus, yellow arrow the 2017 terminus, pink arrow the terminus area of Duosangpuxi purple dots the snowline Duiya Glacier, China is in the Pumqu Basin northwest of Mount Everest.  The glacier terminates in an expanding lake.  King et al (2018) report the proglacial lake is dammed by a full moraine loop, and the glacier loses mass via calving as …


18 July 2018

Mount Tanggula Glaciers, China Thin and Separate

Changes in outlet glaciers of Tanggula Shan in Landsat images from 1993 and 2015.  The Tanggula Shan is in the Qinghai-Tibet Plateau at the headwaters of the Yangtze River and host approximately 1000 square kilometers of glaciers. Ke et al (2017)  examined glaciers in the Dongkemadi Region of the Qinghai-Tibet Plateau revealed glacier thinning of 0.56 m/year from 2003-2008.  The area loss of  −0.31 km2/ year from 1976-2013, a 13% change …


11 July 2018

Mozigou Glacier Meltwater Pays High Hydropower Dividend

Mozigou Glacier is a valley glacier in the Gongga Mountains, Sichuan Province, China that drains into the Dadu River.  In the first 250 km after leaving the glacier this meltwater travels through seven hydropower projects that have a collective capacity of  over 9000 MW. Pan et al (2012) noted that the glaciers of the Gongga Shan have lost 11% of their area since 1966.  They further reported a 300 m …


24 May 2018

Suhai Hu Ice Cap, China Outlet Glacier Retreat

Suhai Hu, Quilian Mountains Ice Cap in 1999 and 2016 Landsat image indicating five different outlet glacier termini that all ended in proglacial lakes in 1999 and all retreated significantly by 2016.  Here we examine an unnamed icecap that I refer to as the “Suhai Hu” Ice Cap and five of its largest outlet glaciers in the Qilian Mountains in northwest China, with Landsat imagery from 1999-2016.  The northern outlet …


18 April 2018

Qiaqing Glacier Retreat & Lake Expansion, China

Qiaqing Glacier in 1992 and 2017 Landsat images indicating flow, blue arrows, 1992 terminus at red arrow and 2017 terminus at yellow arrow. tributaries A, B and C.  “Qiaqing” Glacier drains southeast from the Kona Kangri Massif at the eastern part of the Nyainqentanglha Shan. The glacier ends in a lake before feeding into the Parlung Zangbo and then Yarlung Tsanpo. This glacier feeds the Parlung Zangbo which is the …


3 January 2018

Tajuco Glacier Lake, China Expands with Glacier Retreat

Tajuco Glacier terminating in Tajuco Lake retreat in 1994 and 2017 Landsat comparison. Red arrow is 1997 terminus location, yellow arrow is the 2017 terminus location and the purple dots are the snowline in 2017.  Tajuco Glacier Lake is a moraine dammed glacier lake in the Tingri district of China.  It drains into the Amur River which flows south into Nepal. Shijin et al (2015) reported on the expansion of …


27 October 2017

Yanong Glacier, Tibet Retreat Lake Expansion 1992-2017

Yanong Glacier and North Yanong glacier in Landsat images form 1992 and 2017.  Red arrows indicate 1992 terminus and yellow arrows the 2017 terminus.  Yanong Glacier  and North Yanong Glacier drain northwest from the western flank of Cho Oyu on the Nepal-China border and are in the Tama Khosi watershed.  The glacier terminates in an expanding proglacial lake like a number of neighboring glaciers Drogpa Nagtsang, Rongbuk Glacier and Lumding Glacier.  King …


24 October 2017

Gangge’er Glacier, Retreat & Tributary Separation Qilian Mt. China

Gangge’er Glacier, Qilian Mt., China comparison in 1997 and 2017 Landsat Images.  Yellow arrows indicates 2017 terminus, red arrows the 1990 terminus, and purple arrows tributaries that have detached.  The snowline is  purple dots and Points 1-3 indicate bare rock areas amidst the glacier. The largest glacier in the Gangge’er Xiaoheli Shan range of the the Qilian Mountains in China, here referred to as Gangge’er Glacier, drains northwest into the …


17 October 2017

Chako Glacier, Tibet Retreats From Proglacial Lake

Chako Glacier, Tibet in Landsat images from 1991, 2001 and 2017.  Red arrow indicates 1991 terminus, yellow arrow 2017 terminus, purple tributary glacier connection and orange arrow nearby icecap. Chako Glacier flows north from Chako Peak on the Nepal-Tibet, China border, in the Lugula Himal.  Glacier runoff eventually reaches the Yarlung Tsangpo and then the Brahmaputra River. Gardelle et al, (2013) identified this glacier as part of their West Nepal region, which experienced …