Posts Tagged "glof"

Earthquake in Peru Creates Fear of Glacier Floods

Posted by on Mar 8, 2017 in All Posts, Communities, Featured Posts, News, Policy and Economics | 0 comments

Earthquake in Peru Creates Fear of Glacier Floods

Spread the News:ShareAn earthquake in Peru earlier this year produced significant ground shaking in highland regions of the country. It set off a wave of panic that glacial lakes in the Andes might burst their banks and create devastating floods. The quake, of magnitude 5.3 on the Richter scale, took place at 1:42am local time on January 28. As reported by the U.S. Geological Survey’s Earthquake Hazards Program, its epicenter was located under the Pacific Ocean, about 55 kilometers from the port of Chimbote in the region of Ancash, where the shaking was most instance. It was felt up and down the coast, as far north as Trujillo and as far south as Lima. The tremors also extended inland. This earthquake was the first of a cluster. The second occurred five hours later in the town of Ica to the south of Chimbote. The third took place two hours after that, near Arequipa, still further to the south. These were smaller—4.7 and 4.4, respectively—but close enough in time to create a stir in the media, with extensive coverage all day long in national media. Moreover, Peru had experienced mudslides and debris flows in the months before the earthquake, adding to the sense of concern. Sismo de 5,1 se registró este viernes en el sur de Perú https://t.co/tD3ANGnumU #Actualidad #Noticias — Noticias24 Carabobo (@N24_carabobo) January 28, 2017 The first earthquake was a source of great concern in the highland areas closest to Chimbote, particularly in the Callejón de Huaylas—the long valley along the Santa River, just below the Cordillera Blanca, the mountain chain which contains the largest area of glaciers in Peru. The regional capital of Huaraz and several other sizable towns are located in this valley, which has experienced a number of destructive glacier lake outburst floods. Christian Huggel, a Swiss glaciologist who was working in the area at the time, wrote, “We felt the earthquake here in Huaraz during the night.” He added, “I did not see any damage in the morning, so everything seems to be okay around here.” Benjamin Morales, the director of Peru’s National Institute for Research on Glaciers and Mountain Ecosystems, told GlacierHub that “the heavy rainfall and landslides in central and southern regions [of Peru]” added to the concern following the earthquakes, sensitizing the whole country to the risk of natural hazards even though risks were not as severe in Ancash and north of the country, where, he said, “rainfall is lower.” Tony Oliver-Smith, an anthropologist at the University of Florida with extensive experience in the region, indicated to GlacierHub that the timing of the events, in the middle of the rainy season, was significant. He wrote, “Those of us who have worked in the Callejon de Huaylas are always alert to the effects of earthquakes and landslides, particularly in the rainy season,” when soils are moist, and more likely to erode. The greatest fear was in Carhuaz, a provincial capital to the north of Huaraz. It lies near Huascaran, the tallest peak in the Cordillera Blanca, and the site of one of the world’s largest glacier lake outburst floods in 1970. This event, triggered by an earthquake, led to a debris flow which covered the town of Yungay, with about 6,000 fatalities. A series of smaller aftershocks which followed the main earthquake kept the tensions high in Carhuaz. A Peruvian newspaper, Primera Página, reported that people were concerned that “blocks of ice would detach from glaciers and fall into the lake.” The resulting waves could overtop the rock walls that rim the lake and create a flood. The residents of Carhuaz were also aware that the town...

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Flood Early Warning Systems Leave Women Vulnerable

Posted by on Feb 9, 2017 in All Posts, Communities, Featured Posts, Policy and Economics | 0 comments

Flood Early Warning Systems Leave Women Vulnerable

Spread the News:ShareGlacier lake outburst floods (GLOFs) pose an immediate threat to locations in mountain regions where rising temperatures contribute to glacier melt. This risk makes it crucial that communities at risk to GLOFs develop early warning systems (EWS) to alert residents of impending danger. In order for EWS to be effective, gender needs to be prioritized. In a recent paper published by the International Center for Integrated Mountain Development (ICIMOD), Mandira Shrestha et al. evaluated flood early warning systems in Bhutan and found that many EWS exclude women, who are especially susceptible to natural disasters like GLOFs. GLOFs, which are difficult to predict and devastating to local populations, occur when meltwater is suddenly released from a lake just below a glacier. When this occurs, large amounts of water rush down valleys, picking up debris. They can lead to many deaths and to extensive destruction of fields and property.   In total, Bhutan has 24 lakes which are capable of causing GLOFs.  As temperatures rise, glacier melt increases, leading to exposed moraines and larger volumes of water. However, an EWS can help save lives during a GLOF, especially if it is combined with preparatory actions before a flood occurs. In Bhutan, the EWS was first introduced in 1988 as part of the Hindu Kush Himalayan – Hydrological Cycle Observing System (HKH-HYCOS), a project developed by ICIMOD, national governments in the region, and the World Meteorological Organization. However, Shrestha et al. found that none of the current policies in Bhutan’s EWS address specific needs and experiences of women during natural disasters. In planning documents, women are described as victims, rather than presented as playing an important role in disaster risk management. The Bhutan EWS contains four major elements, also found in other warning systems: risk assessment, monitoring and warning, dissemination and communication, and response capability. The Bhutanese government first prioritized flood early warning systems in 1994, following a detrimental GLOF, which killed 12 people, destroyed 21 homes, and washed away nearly 2,000 acres of land. Shrestha et al. point out that even a good warning system would not be fully effective in preventing such a tragedy if it fails to reach vulnerable populations like women, as well as other such populations including children, disabled people, and the elderly. As Shrestha et al. explain, while women in Bhutan make up 49% of the population and legally have equal rights and access to education, public services, and health care, most women engage in household labor, while men dominate political work. The authors indicate that only 25 percent of women in Bhutan are involved in non-agricultural work. Extensive male out-migration in Bhutan, as elsewhere in the Hindu Kush Himalayas, leaves women to carry out the work in domestic agriculture. As a result, Bhutanese women are excluded from decision-making processes at community or larger scales. This pattern is reflected in other nearby countries as well.  One study done on disaster-affected people seeking mental health care in Bangladesh, which has the highest natural disaster mortality rate in the world, found that women have higher mortality rates in natural disasters, and are also extremely vulnerable in the aftermath of a natural disaster. For example, they are more likely to face food shortage, sexual harassment, and disease, among other issues. Shrestha et al. describe how the social structure in Bhutan leaves women dependent on men for receiving disaster information, because these details are shared in public places, where women typically do not go. Many of the alerts are done through sirens, but some women cannot hear them as they are located in towns rather than rural areas. Even if women do receive the information, it is...

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Andean Farmer Demands Climate Justice in Germany

Posted by on Feb 2, 2017 in All Posts, Featured Posts, News | 0 comments

Andean Farmer Demands Climate Justice in Germany

Spread the News:ShareIn the Cordillera Blanca Mountains of the Peruvian Andes, glacier retreat caused by climate change has led to an increased risk of flooding for residents living below. Saúl Luciano Lliuya, a farmer and mountain guide who faces the imminent threat of losing his house in a massive flood, argues that large polluters are to blame. This led him to file a lawsuit against the German energy giant RWE demanding the firm take responsibility for its CO2 emissions and help reduce the risk of flooding. The lawsuit could set an important precedent – if Luciano Lliuya wins, anyone affected by climate change impacts could potentially sue for damages or compensation beyond the borders of their own country. This may provide a more fruitful strategy in light of stalling political efforts at the United Nations level to combat climate change and promote adaptation. In December 2016, the lawsuit was dismissed by the Essen Regional Court in Germany and is currently pending appeal. Climate Change in the Cordillera Blanca Growing up below the snow-capped mountains of the Cordillera Blanca, Lliuya has borne witness to a changing Andean climate over the past decades. Now aged 36, his work as a mountain guide brings him to high altitudes where he has observed the glaciers progressively receding year after year. This led the glacial lake Palcacocha to rise exponentially in volume – from 0.5 million m3 in 1974 to 3.9 million m3 in 2003 and 17.4 million m3 in 2016. A dislodged piece of glacial ice falling into the lake could lead to a massive outburst flood that would destroy large parts of the city of Huaraz below, according to a recent scientific study. Huaraz is no stranger to disaster. In 1941, Lake Palcacocha produced an outburst flood that killed thousands and devastated the city. In subsequent decades, the Peruvian authorities drained Palcacocha and other glacial lakes, constructing dams to prevent future disasters. Residents of Huaraz rebuilt the city. Today, existing dams and drainage systems are no longer sufficient at Palcacocha as glacial retreat has increased dramatically and authorities struggle to fund security measures after neoliberal cuts to public finance since the 1990s. In the short term, glacial retreat in the Cordillera Blanca causes the threat of too much water flooding populated valleys. But if glaciers disappear in the long term, the region will lose its primary source of water. Both scenarios can have devastating consequences. In addition, residents face an increasingly unpredictable climate that disrupts agricultural cycles. Lliuya argues that Peruvians have contributed little to these problems. “The big companies are mainly responsible for climate change through their emissions. They need to take responsibility and help us face the problems they caused,” Lliuya told GlacierHub. He wanted to take matters into his own hands. When a colleague put him in touch with members of the German environmental NGO Germanwatch, he found partners who were willing to help him take action. Introducing him to the German environmental lawyer Roda Verheyen, the NGO offered to support a legal claim for climate justice against a major polluter. In November 2015, he traveled to Germany and filed a lawsuit against RWE, the largest single CO2 emitter in Europe. The lawsuit “This is a precedent. RWE AG releases significant emissions, principally through its coal-fired power plants, which makes global temperatures rise, causes glaciers to melt and leads to an acute threat to my client’s property,” Verheyen argued. “We request that the court declare RWE liable to remove this impairment.” The lawsuit relies on article 1004 of the German Civil Code to argue that RWE is partially responsible...

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How Glacial Lakes in India Offer Lessons on Adaptation

Posted by on Nov 10, 2016 in Adaptation, All Posts, Featured Posts | 0 comments

How Glacial Lakes in India Offer Lessons on Adaptation

Spread the News:ShareSituated on a high plateau in northwest India, the Ladakh region is part of the contested Indian state of Jammu and Kashmir. While local communities share similar linguistic, cultural, and religious beliefs with Tibet, Pakistan and India continue to disagree on territorial claims in the region. Located in the Himalaya Mountains, the Ladakh region is home to some of the world’s largest glaciers outside of polar regions with 266 glacial lakes, according to Mountain Research and Development. Given the recent warming temperature trends, the glacial retreat in the region places Ladakh’s small mountain communities at risk for destructive events known as glacial lake outburst floods or GLOFs. A GLOF occurs when the terminal moraine dam located at the maximum edge of a glacier collapses, releasing large volumes of water. In an attempt to minimize these threats to small mountain communities, the International Research Institute of Disaster Science, the Department of Environmental Science at Niigata University, and the Ladakh Ecological Development Group offered a one-day workshop to educate populations on their local risks due to the increased numbers of glacial lakes in the region. Three months after the workshop, facilitators returned to the area to survey local villagers to measure the retention and overall success of this adaptive approach.  In the article, scientists report that knowledge of risks was limited: “Most villagers knew of some but not all of the glacier lakes in the valley – primarily those closest to the regular routes used in their daily lives, such as near pasturelands in the headwater areas and along trade routes to the adjacent valleys.” The majority of villagers obtained their knowledge from communications with people who had come across the glacial lakes accidentally, according to the researchers. By presenting and encouraging action that complemented daily lives, the scientists believed they were able to better prepare communities for climate risks increases. The scientists were able to provide local villagers with information on how to more accurately assess glacier lakes and the potential risk for a GLOF by developing an understanding of local routes. These tools were promoted to help villagers contribute to a stronger, more resilient local mountain community. A warming planet has caused glacial melt to increase in regions like northwest India, leading to the formation of more glacial lakes since the 1970s, according to NASA. With the increased number of glacial lakes located in the Ladakh region, the risk for glacial outburst flood rises, as stated by Worni et al. Given the high altitude origins of these glacial lakes, a sudden release of water can have similar catastrophic impacts as a massive avalanche. The sudden force is capable of leveling anything in its path, including villages. “[GLOFs] result in serious death tolls and destruction of valuable natural resources, such as forests, farms, and costly mountain infrastructures,” according to the India Environmental Portal. “The Hindu Kush-Himalayan region has suffered several GLOF events originating from numerous glacial lakes, some of which have trans-boundary impacts.” Educating and preparing small mountain communities becomes increasingly critical because forecasting abilities for these events are limited. The forecasting challenges surrounding GLOFs makes communicating risk to local communities difficult. In an attempt to reach and effectively communicate risks to remote mountain villages in the Ladakh region, the International Research Institute of Disaster Science, the Department of Environmental Science, Niigata University, and the Ladakh Ecological Development Group developed a concept for the one day workshop. According to the report, of the 120 people participating, three villages were represented, all possessing different leveled risks. Villagers were picked at random and varied in age from school children to elderly members in the community. Once the workshop began, facilitators encouraged...

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Roundup: Tragedy in Antarctica, Antimony and Glacier Risks

Posted by on Oct 31, 2016 in All Posts, Featured Posts, Roundup | 0 comments

Roundup: Tragedy in Antarctica, Antimony and Glacier Risks

Spread the News:ShareRoundup: Tragedy, Antimony and Risk   Prominent Climate Scientist Dies in Antarctica New York Times: “Gordon Hamilton, a prominent climate scientist who studied glaciers and their impact on sea levels in a warming climate, died in Antarctica when the snowmobile he was riding plunged into a 100-foot-deep crevasse. He was an associate research professor in the glaciology group at the Climate Change Institute at the University of Maine. He was camping with his research team on what is known as the Shear Zone, where two ice shelves meet in an expanse three miles wide and 125 miles long. Parts of the Shear Zone can be up to 650 feet thick and ‘intensely crevassed.’ Dr. Hamilton’s research, aided by a pair of robots equipped with ground-penetrating radar instruments, focused on the impact of a warming climate on sea levels. He was working with an operations team to identify crevasses.” Learn more about the tragedy here.   Antimony Found in the Tibetan Glacial Snow Journal of Asian Earth Sciences: “Antimony (Sb) is a ubiquitous element in the environment that is potentially toxic at very low concentrations. In this study, surface snow/ice and snowpit samples were collected from four glaciers in the southeastern Tibetan Plateau in June 2015… The average Sb concentration in the study area was comparable to that recorded in a Mt. Everest ice core and higher than that in Arctic and Antarctic snow/ice but much lower than that in Tien Shan and Alps ice cores… Backward trajectories revealed that the air mass arriving at the southeastern Tibetan Plateau mostly originated from the Bay of Bengal and the South Asia in June. Thus, pollutants from the South Asia could play an important role in Sb deposition in the studied region. The released Sb from glacier meltwater in the Tibetan Plateau and surrounding areas might pose a risk to the livelihoods and well-being of those in downstream regions.” Read more about the research here.   Managing Glacier Related Risks Disaster in Peru The Climate Change Adaption Strategies: A recently edited book, “The Climate Change Adaptation Strategies – An Upstream – Downstream Perspective,” edited by Nadine Salzmann et al., has several chapters on glaciers. The chapter “Managing Glacier Related Risks Disaster in the Chucchún Catchment, Cordillera Blanca, Peru” discusses some of these glacier related risks: “Glacial lakes hazards have been a constant factor in the population of the Cordillera Blanca due their potential to generate glacial lake outburst floods (GLOF) caused by climate change. In response, the Glaciares Project has been carried out to implement three strategies to reduce risks in the Chucchún catchment through: (1) Knowledge generation, (2) building technical and institutional capacities, and (3) the institutionalization of risk management. As a result, both the authorities and the population have improved their resilience to respond to the occurrence of GLOF.” Explore more related chapters here. Spread the...

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