{"id":13328,"date":"2021-10-05T00:00:00","date_gmt":"2021-10-05T00:00:00","guid":{"rendered":"https:\/\/www.nextias.com\/current_affairs\/uncategorized\/05-10-2021\/landslide-and-flood-early-warning-system\/"},"modified":"2025-04-04T12:39:08","modified_gmt":"2025-04-04T07:09:08","slug":"landslide-and-flood-early-warning-system","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/05-10-2021\/landslide-and-flood-early-warning-system","title":{"rendered":"Landslide and Flood Early Warning System"},"content":{"rendered":"<p><span style=\"font-size: 13pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><u>In News\u00a0<\/u><\/strong><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Recently, the Council of Scientific And Industrial Research National Geophysical Research Institute (CSIRNGRI) has launched an <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>\u2018Environmental Seismology\u2019<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> group to develop a <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>\u2018Landslide and Flood Early Warning System<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">\u2019 for the Himalayan region.<\/span><\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 13pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><u>Relevancy<\/u><\/strong><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Its need was necessitated following the <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>flash floods at Chamoli district in February <\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">when a steep glacier on the <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Nandadevi peak in Garhwal Himalaya <\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">got detached.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">It caused a major avalanche and inducing flash floods in the <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Rishi Ganga and Alaknanda rivers in Chamoli (Uttarakhand)<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">. It killed several persons downstream and caused damage to two power plants.\u00a0<\/span><\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 13pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><u>About \u2018Landslide and Flood Early Warning System\u2019<\/u><\/strong><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">It is based on <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>real-time monitoring<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> with dense seismological networks, coupled with satellite data, numerical modelling and geomorphic analysis.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">This would <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>enable a crucial warning several hours prior<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">, which will save human lives and property.<\/span><\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 13pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><u>What are Landslides?<\/u><\/strong><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><a href=\"https:\/\/www.nextias.com\/blog\/landslides\/\">Landslides<\/a> are more <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>widespread than any other geological<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> event and can occur anywhere in the world.\u00a0<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">They occur when large masses of soil, rocks or debris move down a slope due to a natural phenomenon or human activity.\u00a0<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Mudslides or debris flows <\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">are also a common type of fast-moving landslide.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Landslides can accompany heavy rains or follow droughts, earthquakes or volcanic eruptions.\u00a0<\/span><\/span><\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><img decoding=\"async\" style=\"height: 270px; width: 377px;\" src=\"https:\/\/lh4.googleusercontent.com\/Y364HBXNkcqNdLP1ypzXZfr1dqt-k02z8uL_LmdwmYs9CK3-azY1Zb2RX7ts_b1lKehN5acflnJpRZwNBgxJi8J_8DYsrzH62dm_zGUveHxspxHZnLCcrvwgeVjgEvs3mjRi50rR=s0\" \/><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Areas most vulnerable to landslides include:<\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">steep terrain, including areas at the bottom of canyons;<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">land previously burned by wildfires;<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">land that has been modified due to human activity, such as deforestation or construction;<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">channels along a stream or river;<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">any area where surface runoff is directed or land is heavily saturated.<\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Which part of India is landslide-prone?<\/strong><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">The entire Himalayan tract, hills\/ mountains in sub-Himalayan terrains of North-east India, Western Ghats, the Nilgiris in Tamil Nadu Konkan areas are landslide-prone.<\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">\u00a0<\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Impact:\u00a0<\/strong><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Landslides can cause<\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong> high mortality and injuries<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> from rapidly flowing water and debris. The most common cause of death in a landslide is trauma or suffocation by entrapment.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Broken power, water, gas or sewage pipes <\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">can also result in injury or illness in the population affected, such as water-borne diseases, electrocution or lacerations from falling debris.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">People affected by landslides can also have short- and long-term mental health effects <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>due to loss of family, property, livestock or crops.<\/strong><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Landslides can also greatly impact the<\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong> health system and essential services,<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> such as water, electricity or communication lines.<\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Steps:\u00a0<\/strong><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">The Geological Survey of India (GSI) has taken initiatives in the field of landslide risk reduction and management through landslide susceptibility mapping in various scales in different parts of the country including the <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>North-Eastern Region (NER) and Sikkim.<\/strong><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">GSI in its landslide studies included Pre-disaster studies (multi-scale landslide susceptibility\/hazard\/risk mapping &amp; conducting landslide awareness programme); and Post-disaster studies (landslide inventory mapping and site-specific detailed geological mapping, slope stability analysis and landslide monitoring).<\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-size: 13pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><u>Flood and its Types\u00a0<\/u><\/strong><\/span><\/span><\/span><\/p>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">It is a temporary inundation of <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>large regions as a result of an increase <\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">in the reservoir, or of rivers flooding their banks because of heavy rains, high winds, cyclones, storm surge along the coast, tsunami, melting snow or dam bursts.<\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Flash Floods:<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> It is defined as floods that occur within six hours of the beginning of heavy rainfall. In the case of flash floods, warnings for timely evacuation may not always be possible.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>River Floods:<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> They are caused by precipitation over large catchment\u2019s areas. These floods normally build up slowly or seasonally and may continue for days or weeks as compared to flash floods.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Coastal Floods<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">: They are associated with cyclonic activities like Hurricanes, tropical cyclones etc.\u00a0<\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Steps:\u00a0<\/strong><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">\u00a0A Flood Management Programme (FMP) was launched during XI Plan for providing <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>assistance to States<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> for works related to flood management and erosion control.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Various training programmes<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> are run by the National Water Academy, Pune which serves the objective of the National Flood Management Institute recommended by NDMA.\u00a0<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Central Water Commission (CWC) has initiated actions for expansion and modernisation of its flood forecasting network.\u00a0<\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: square;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">CWC has provided necessary technical guidance to States for the preparation of E<\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>mergency Action Plans (EAPs)<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> by concerned dam owners.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: square;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">CWC had prepared a model bill on Flood Plain Zoning way back in 1975. The legislation has been enacted by three States namely, Manipur, Rajasthan and Uttarakhand.<\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Flood data is being collected in a systematic manner through the hydrological and flood forecasting network of the Central Water Commission.\u00a0<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">A Water Resources System (WRIS) has been launched where such digitised data is available.<\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Source: TH<\/strong><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In News\u00a0 Recently, the Council of Scientific And Industrial Research National Geophysical Research Institute (CSIRNGRI) has launched an \u2018Environmental Seismology\u2019 group to develop a \u2018Landslide and Flood Early Warning System\u2019 for the Himalayan region. Relevancy Its need was necessitated following the flash floods at Chamoli district in February when a steep glacier on the Nandadevi [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[48,26],"class_list":["post-13328","post","type-post","status-publish","format-standard","hentry","category-current-affairs","tag-disaster-management","tag-gs-3"],"acf":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/13328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=13328"}],"version-history":[{"count":1,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/13328\/revisions"}],"predecessor-version":[{"id":40374,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/13328\/revisions\/40374"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=13328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=13328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=13328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}