{"id":32451,"date":"2019-10-16T06:13:40","date_gmt":"2019-10-16T06:13:40","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=32451"},"modified":"2019-10-16T14:35:31","modified_gmt":"2019-10-16T14:35:31","slug":"rio-de-janeiro-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2019\/10\/16\/rio-de-janeiro-1\/","title":{"rendered":"Landslide risk management in Rio de Janeiro"},"content":{"rendered":"

Landslide risk management in Rio de Janeiro<\/h4>\n

Rio de Janeiro<\/a> in Brazil is a city with significant levels of landslide risk.  In April 2010, heavy rainfall triggered a large number of landslides across the city, killing hundreds of people<\/a>.  For example, Nova Friburgo suffered multiple landslide events with catastrophic outcomes<\/a>:-<\/p>\n

\"Rio

Landslides from 2010 in the Rio de Janeiro area of Brazil. Image via RTE<\/a>.<\/p><\/div>\n

.<\/p>\n

As a result of repeated landslide disasters, Rio de Janeiro has instigated a landslide risk management programme that is impressive in its ambition and scope.  Rio On Watch has published a good, detailed article, by Abby Hanna, that provides a review of this work<\/a>.  This provides links to a number of resources that underpin the landslide risk management work, including an excellent presentation that includes information about historic landslide events in the city<\/a>.<\/p>\n

The article provides detail about the five steps<\/a> that have been taken to manage landslide risk in Rio de Janeiro:-<\/p>\n

    \n
  1. Knowledge: <\/b>Includes a mapping of all risk areas in the city (last completed in 2011<\/a>) and slope susceptibility (using thematic maps, aerial photos, and lasers).<\/em><\/li>\n
  2. Prevention: <\/b>Includes the creation of Alerta-Rio (telemetric rain gauge network that began in 1996), the addition of a meteorological Doppler radar in 1999, emergency shelter points, community leader training, Rio\u2019s Center of Operations (COR), and audible alert\/alarm levels added in 2011.<\/em><\/li>\n
  3. Diagnostics: <\/b>Includes the development of mitigation projects in 117 communities designated as high-risk and the division of 112 communities into 10 regional sections.<\/em><\/li>\n
  4. Intervention: <\/b>Refers to methods and protocol for slope containment constructions, with a reported budget of R$83 million (US$21 million) for 2001-2008 and R$320 million (US$80 million) for 2009-2012.<\/em><\/li>\n
  5. Monitoring: <\/b>Drones, barometers, rain gauges, tracking with GPS, meteorological\/weather stations with audio and video in real-time.<\/em><\/li>\n<\/ol>\n

    Underpinning the system is the “Community-Based Alert and Alarm System,” which provides a warning of heavy rainfall and, in the most vulnerable locations, triggers sirens to warn residents that landslides are possible.<\/p>\n

    Such systems are never perfect.  Earlier this year, Rio de Janeiro suffered 17 fatalities as a result of heavy rainfall<\/a>.  But, these types of programmes certainly have their place in reducing landslide risk, and deserve further investment.<\/p>\n","protected":false},"excerpt":{"rendered":"

    A review of the extensive early warning system used to manage landslide risk in the favellas of Rio de Janeiro in Brazil, a city that faces multiple landslide hazards <\/p>\n","protected":false},"author":22,"featured_media":32452,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[740],"tags":[27801,102,469,1228,246,122,27800],"class_list":["post-32451","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-landslide-costs","tag-alert","tag-brazil","tag-featured","tag-landslide-risk","tag-risk","tag-south-america","tag-warming"],"_links":{"self":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/32451","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=32451"}],"version-history":[{"count":0,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/posts\/32451\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media\/32452"}],"wp:attachment":[{"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/media?parent=32451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/categories?post=32451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.agu.org\/landslideblog\/wp-json\/wp\/v2\/tags?post=32451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}