{"id":266,"date":"2016-05-19T16:18:26","date_gmt":"2016-05-19T15:18:26","guid":{"rendered":"http:\/\/generic.wordpress.soton.ac.uk\/deccma\/?p=266"},"modified":"2017-03-09T11:37:32","modified_gmt":"2017-03-09T11:37:32","slug":"drones-over-the-delta-monitoring-coastal-protection-structures-along-the-shoreline-of-ghanas-volta-delta-using-an-unmanned-aerial-vehicle-uav","status":"publish","type":"post","link":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/2016\/05\/19\/drones-over-the-delta-monitoring-coastal-protection-structures-along-the-shoreline-of-ghanas-volta-delta-using-an-unmanned-aerial-vehicle-uav\/","title":{"rendered":"Drones over the delta: Monitoring coastal protection structures along the shoreline of Ghana\u2019s Volta delta using an Unmanned Aerial Vehicle (UAV)"},"content":{"rendered":"<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"665\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/zkILRW5zXbo?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-GB&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>Coastal erosion in the Keta district of the Ghana\u2019s Volta delta is causing increasing problems by destroying property and infrastructure and displacing people. With erosion rates of up to 8 metres per year, proactive efforts are required to manage these impacts. Within the Keta Sea Defence Project (KSDP) various erosion control measures have been employed. These include hard engineering, such as groynes and revetments, and soft engineering, such as beach nourishment.<\/p>\n<p>Since its establishment in 2004, there has been no sustainable scheme in place to monitor the effectiveness of the coastal defence structures within the Keta Sea Defence Project.<br \/>\nTraditional methods of monitoring the rate of coastal erosion include Differential Global Positioning Systems (DGPS), aerial photographs and satellite imagery \u2013 but these are expensive to buy, require specialist training to use, and can be time consuming. Although some satellite images are freely available, their coarse resolution (30m x 30m) mean that that are unsuitable for monitoring the KSDP.<\/p>\n<p>Kwasi Appeaning Addo and his team in the Department of Marine and Fisheries Sciences at the University of Ghana and the Centre for Tropical Marine Ecology at the University of Bremen, Germany are pioneering a new mechanism to monitor the rate of coastal erosion. Unnamed Aerial Vehicles (UAVs) or \u201cdrones\u201d are relatively inexpensive to buy (less than US$1000) and easy to use (it takes only a day to train research assistants to fly the drone). In addition they allow flexibility in the monitoring process \u2013 the researchers determine the flight path and the altitude at which the drones fly, which results in much more relevant and reliable data. Being able to choose the height at which the drones fly means that clouds are not a problem as they can be in both aerial photographs and satellite imagery.<\/p>\n<p>Dr Appeaning Addo and his team have been undertaking bi-monthly repeated surveys were undertaken using a drone known as DJI Phantom Series. They first established ground control points using a high precision differential GPS system in order to effectively guide the drone. The survey produce in high resolution aerial photographs which are then analysed and used to create 3D models of the earth\u2019s surface. The models from each drone monitoring mission are then overlaid with the previous ones. In comparing them, it is possible to identify any changes over time and also the extent of change allows calculation of the rate at which the change was occurring. Since the drones produce photographs, it is possible to use them to investigate of what is causing the changes and whether they are permanent or cyclical, for example. The preliminary results from two months (May and July 2015) of drone-led field surveys showed that there was significant lateral and topographic changes in the beach system.<\/p>\n<p>As drones provide more reliable data for scientists to analyse, they will be able to have a greater understanding of the nature and rate of coastal erosion in the Volta Delta shoreline. This provides a reference point to assess the effectiveness of the KSDP. It also provides important information for the government of Ghana to ensure that their attempts to address coastal erosion are well targeted and effective.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"665\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/Wo7W8z5WPEc?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-GB&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Coastal erosion in the Keta district of the Ghana\u2019s Volta delta is causing increasing problems by destroying property and infrastructure and displacing people. With erosion rates of up to 8 metres per year, proactive efforts are required to manage these impacts. Within the Keta Sea Defence Project (KSDP) various erosion control measures have been employed. [&hellip;]<\/p>\n","protected":false},"author":2288,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[17,7,22],"tags":[],"class_list":["post-266","post","type-post","status-publish","format-standard","hentry","category-delta","category-ghana","category-volta"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8jyTh-4i","jetpack-related-posts":[{"id":285,"url":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/2015\/08\/17\/keta-point-of-no-return\/","url_meta":{"origin":266,"position":0},"title":"Keta &#8211; Point of no return","author":"Lucy Graves","date":"17th August 2015","format":false,"excerpt":"On 26 July 2015, the DECCMA team visited the district of Keta on the coast of Ghana as part of a field program. The first stop was Fort Prinzenstein on the Gulf of Guinea. Fort Prinzenstein is one of several \u2018point of no return\u2019 locations for the slaves who were\u2026","rel":"","context":"In &quot;Conferences &amp; meetings&quot;","block_context":{"text":"Conferences &amp; meetings","link":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/category\/conferences-meetings\/"},"img":{"alt_text":"Coast in the Volta delta","src":"https:\/\/i0.wp.com\/generic.wordpress.soton.ac.uk\/deccma\/wp-content\/uploads\/sites\/181\/2017\/02\/keta-point-of-no-return-300x223.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2470,"url":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/2018\/10\/01\/profiling-our-stakeholders-keta-municipal-planning-officer-in-ghana\/","url_meta":{"origin":266,"position":1},"title":"Profiling our stakeholders: Keta Municipal Planning Officer in Ghana","author":"katharinevincent","date":"1st October 2018","format":false,"excerpt":"by Prosper Adiku and Gertrude Owusu During the monitoring and evaluation of the DECCMA Ghana project, it came to light that the Planning Officer for the Keta Municipal Assembly has been making efforts to incorporate some of the learnings from the DECCMA project engagements. This feature article highlights his involvement\u2026","rel":"","context":"In &quot;Delta&quot;","block_context":{"text":"Delta","link":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/category\/delta\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/generic.wordpress.soton.ac.uk\/deccma\/wp-content\/uploads\/sites\/181\/2018\/09\/MPO_passport-233x300.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2698,"url":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/2019\/02\/27\/deccma-ghana-success-with-proposal-empowering-women-and-transforming-gender-relations-in-the-volta-delta-ghana\/","url_meta":{"origin":266,"position":2},"title":"DECCMA Ghana success with proposal &#8220;Empowering women and transforming gender relations in the Volta delta, Ghana&#8221;","author":"katharinevincent","date":"27th February 2019","format":false,"excerpt":"The DECCMA Ghana team has been successful in its proposal \"Empowering women and transforming gender relations in the Volta delta, Ghana\".\u00a0 The project\u00a0will bring together researchers with local and national policy-makers, a leading Ghanaian advocacy NGO, and traditional leaders to build networks and share research findings with the aim of\u2026","rel":"","context":"In &quot;Delta&quot;","block_context":{"text":"Delta","link":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/category\/delta\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/generic.wordpress.soton.ac.uk\/deccma\/wp-content\/uploads\/sites\/181\/2019\/02\/Ghana.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":324,"url":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/2016\/03\/21\/drone-footage-of-community-flooding-and-coastal-erosion-in-the-volta-delta\/","url_meta":{"origin":266,"position":3},"title":"Drone footage of community flooding and coastal erosion in the Volta delta","author":"Lucy Graves","date":"21st March 2016","format":false,"excerpt":"On February 3rd 2016, the Daily Graphic, the main newspaper in Ghana, reported of destruction being caused by ocean waves in a number of communities within the Volta Delta, including Fuveme. In response to the news, the DECMMA Ghana team set out to verify the situation on 6th February 2016\u2026","rel":"","context":"In &quot;Delta&quot;","block_context":{"text":"Delta","link":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/category\/delta\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/zkILRW5zXbo\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":1391,"url":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/2017\/08\/15\/deccma-7th-consortium-meeting-held-in-ghana\/","url_meta":{"origin":266,"position":4},"title":"DECCMA 7th Consortium Meeting held in Ghana","author":"jlawncariaanet","date":"15th August 2017","format":false,"excerpt":"By Prosper Adiku and Gertrude Domfeh The DEltas, vulnerability and Climate Change: Migration and Adaptation (DECCMA) project held its 7th Consortium meeting in Ghana on Sunday July 2, 2017 at The Royal Senchi Hotel. DECCMA is a research consortium of five institutions from Africa, Asia and Europe conducting a comparative\u2026","rel":"","context":"In &quot;Uncategorised&quot;","block_context":{"text":"Uncategorised","link":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/category\/uncategorised\/"},"img":{"alt_text":"Kwasi and MESTI","src":"https:\/\/i0.wp.com\/generic.wordpress.soton.ac.uk\/deccma\/wp-content\/uploads\/sites\/181\/2017\/08\/Kwasi-and-MESTI-1024x683.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/generic.wordpress.soton.ac.uk\/deccma\/wp-content\/uploads\/sites\/181\/2017\/08\/Kwasi-and-MESTI-1024x683.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/generic.wordpress.soton.ac.uk\/deccma\/wp-content\/uploads\/sites\/181\/2017\/08\/Kwasi-and-MESTI-1024x683.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":2094,"url":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/2017\/12\/11\/deccma-team-participates-in-fao-regional-meeting-in-ghana\/","url_meta":{"origin":266,"position":5},"title":"DECCMA team participates in FAO Regional Meeting in Ghana","author":"katharinevincent","date":"11th December 2017","format":false,"excerpt":"by Prosper Adiku DECCMA was invited to make a presentation at the Food and Agriculture Organisation Regional Meeting held in Akosombo, Ghana from November 20-24, 2017; and hosted a field visit to the Volta delta. FAO\u2019s is committed to promoting rural agricultural development. Migration currently has a negative impact on\u2026","rel":"","context":"In &quot;Conferences &amp; meetings&quot;","block_context":{"text":"Conferences &amp; meetings","link":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/category\/conferences-meetings\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/generic.wordpress.soton.ac.uk\/deccma\/wp-content\/uploads\/sites\/181\/2017\/12\/Mumuni-300x200.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/posts\/266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/users\/2288"}],"replies":[{"embeddable":true,"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/comments?post=266"}],"version-history":[{"count":2,"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/posts\/266\/revisions"}],"predecessor-version":[{"id":431,"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/posts\/266\/revisions\/431"}],"wp:attachment":[{"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/media?parent=266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/categories?post=266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/generic.wordpress.soton.ac.uk\/deccma\/wp-json\/wp\/v2\/tags?post=266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}