{"id":34738,"date":"2020-07-28T07:16:48","date_gmt":"2020-07-28T07:16:48","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=34738"},"modified":"2020-07-28T07:16:48","modified_gmt":"2020-07-28T07:16:48","slug":"mapping-landslides-in-nepal","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2020\/07\/28\/mapping-landslides-in-nepal\/","title":{"rendered":"Mapping landslides in Nepal"},"content":{"rendered":"

Mapping landslides in Nepal<\/h4>\n

Heavy monsoon rainfall continues to drive landslide losses across Nepal<\/a>.\u00a0 As in all disasters, a key aspect of an appropriate response is highly quality spatial data.\u00a0 In the summer of 2019<\/a> the National Emergency Operation Centre (NEOC), a part of the Ministry of Home Affairs, launched a new disaster management portal (bipad.gov.np<\/a>) to provide high quality data.\u00a0 It collates and displays spatial data for a range of natural and anthropogenic hazards, including floods, landslides, GLOFs and fires.\u00a0 The data can be displayed in a variety of formats, including events for the last 3, 7 and 14 days, as well as having a customised date range facility.<\/p>\n

This is the distribution of recorded landslides for the last seven days, as of 7 am (UK time) on 28 July 2020:-<\/p>\n

 <\/p>\n

 <\/p>\n

\"Mapping

A map of landslide events in Nepal for the 7 days to 28 July 2020. Data from the bipad.np.gov tool<\/a>.<\/p><\/div>\n

.<\/p>\n

Each brown dot here is a landslide event recorded in the last seven days, with the size of the dot representing the losses (see the key in the bottom left corner). The tool indicates that 16 landslide related fatalities were recorded in this period.\u00a0 Note the cluster of landslides in the centre of the country – it is interesting to compare this with data on precipitation over the same period, using the NASA Global Precipitation Measurement system, mapped with the GPM IMERG Global Viewer tool<\/a>:-<\/p>\n

\"Mapping

The last seven days of rainfall in Nepal using data from the NASA GPM mission.\u00a0 Warm colours indicate high levels of rainfall.\u00a0 Mapped using the GPM IMERG Global Viewer tool<\/a>.<\/p><\/div>\n

.<\/p>\n

Note the area of higher levels of rainfall in the centre of the country, which corresponds with the area of higher levels of landslides.<\/p>\n

The map below shows the reported landslides over the last 28 days:-<\/p>\n

\"Mapping

A map of landslide events in Nepal for the 28 days to 28 July 2020. Data from the bipad.np.gov tool<\/a>.<\/p><\/div>\n

.<\/p>\n

In this period the tool has records for landslides that resulted in 111 deaths.<\/p>\n

Very few countries have a publicly accessible database of disaster information of this quality.\u00a0 Nepal deserves great credit for setting up such a system.<\/p>\n

.<\/p>\n

Quickslide 1: An Irish peat bog landslide in 1896<\/h4>\n

The Irish Examiner<\/a> has a story about a peat bog landslide at Shass Mountain that killed eight people, of whom six were children.\u00a0 The landslide had a runout distance of up to 8 km.<\/p>\n

.<\/p>\n

Quickslide 2: A journal article about the Brumadinho tailings dam failure<\/h4>\n

The journal Landslides has published a research article (de Lim et al.<\/em> 2020<\/a>) about the Brumadinho ( C\u00f3rrego do Feij\u00e3o) tailings dam failure in 2019.\u00a0 It concludes that the event can be caharcterised in four phases: “(a) a rotational slide which destroyed the complete dam structure; (b) a debris avalanche; (c) a debris flow; and (d) a mudflow, composed by a mixture between tailings material and the soil.”\u00a0 The article has been placed on Research Gate,<\/a> so you can request a copy from the authors.<\/p>\n

.<\/p>\n

Reference<\/h4>\n

de Lima, R.E., de Lima Pican\u00e7o, J., da Silva, A.F. et al. 2020.\u00a0<\/i> An anthropogenic flow type gravitational mass movement: the C\u00f3rrego do Feij\u00e3o tailings dam disaster, Brumadinho, Brazil. Landslides<\/i> https:\/\/doi.org\/10.1007\/s10346-020-01450-2<\/p>\n","protected":false},"excerpt":{"rendered":"

In the summer of 2019 the National Emergency Operation Centre (NEOC), launched a new disaster management portal (bipad.gov.np) to provide high quality spatial data. This allows landslide accidents in Nepal to be mapped in near real time.<\/p>\n","protected":false},"author":22,"featured_media":34741,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[542],"tags":[683,45,30461,66,72],"class_list":["post-34738","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-database-2","tag-data","tag-database","tag-mapping-landslides","tag-nepal","tag-south-asia"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/34738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/comments?post=34738"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/34738\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/34741"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=34738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=34738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=34738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}