{"id":3016,"date":"2021-07-26T11:07:21","date_gmt":"2021-07-26T11:07:21","guid":{"rendered":"https:\/\/windsim.com\/?page_id=3016"},"modified":"2024-02-14T12:56:38","modified_gmt":"2024-02-14T12:56:38","slug":"lidar-and-sodar-flow-curvature-correction","status":"publish","type":"page","link":"https:\/\/windsim.com\/services\/lidar-and-sodar-flow-curvature-correction\/","title":{"rendered":"LIDAR &#038; SODAR flow curvature correction"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"3016\" class=\"elementor elementor-3016\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3d02718e elementor-section-full_width elementor-section-height-min-height elementor-section-height-default elementor-section-items-middle\" data-id=\"3d02718e\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2238d4e\" data-id=\"2238d4e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4bc86f5 elementor-widget elementor-widget-heading\" data-id=\"4bc86f5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Lidar and sodar flow curvature correction<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-50d27cc4 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"50d27cc4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-7efdc45c elementor-hidden-tablet elementor-hidden-phone\" data-id=\"7efdc45c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1aa16a9f elementor-nav-menu--dropdown-tablet elementor-nav-menu__text-align-aside elementor-nav-menu--toggle elementor-nav-menu--burger elementor-widget elementor-widget-nav-menu\" data-id=\"1aa16a9f\" data-element_type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;vertical&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;&lt;i class=\\&quot;fas fa-caret-down\\&quot;&gt;&lt;\\\/i&gt;&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;toggle&quot;:&quot;burger&quot;}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t<nav class=\"elementor-nav-menu--main elementor-nav-menu__container elementor-nav-menu--layout-vertical e--pointer-background e--animation-fade\">\n\t\t\t\t<ul id=\"menu-1-1aa16a9f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-3047\"><a href=\"https:\/\/windsim.com\/services\/lidar-and-sodar-flow-curvature-correction\/\" class=\"elementor-item\">LIDAR &#038; SODAR flow curvature correction<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-286\"><a href=\"https:\/\/windsim.com\/services\/basic-wind-speed\/\" class=\"elementor-item\">Basic Wind Speed<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-287\"><a href=\"https:\/\/windsim.com\/services\/virtual-wind-data\/\" class=\"elementor-item\">Virtual Wind Data<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-288\"><a href=\"https:\/\/windsim.com\/screening-of-potential-sites\/\" class=\"elementor-item\">Screening of Potential Sites<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-289\"><a href=\"https:\/\/windsim.com\/measurement-campaign-design\/\" class=\"elementor-item\">Measurement Campaign Design<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-290\"><a href=\"https:\/\/windsim.com\/services\/wind-data-analysis\/\" class=\"elementor-item\">Wind Data Analysis<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-291\"><a href=\"https:\/\/windsim.com\/services\/micro-scale-wind-resource-mapping\/\" class=\"elementor-item\">Micro-scale wind resource mapping<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-292\"><a href=\"https:\/\/windsim.com\/services\/optimized-wind-farm-design\/\" class=\"elementor-item\">Optimized Wind farm design<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-293\"><a href=\"https:\/\/windsim.com\/services\/bankable-aep-assessment\/\" class=\"elementor-item\">Bankable AEP assessment<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-294\"><a href=\"https:\/\/windsim.com\/services\/site-suitability\/\" class=\"elementor-item\">Site Suitability<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-295\"><a href=\"https:\/\/windsim.com\/services\/post-construction-assessment\/\" class=\"elementor-item\">Post Construction Assessment<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-296\"><a href=\"https:\/\/windsim.com\/services\/cfd-model-quality-assurance\/\" class=\"elementor-item\">CFD model Quality assurance<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t<div class=\"elementor-menu-toggle\" role=\"button\" tabindex=\"0\" aria-label=\"Menu Toggle\" aria-expanded=\"false\">\n\t\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--open eicon-menu-bar\"><\/i><i aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--close eicon-close\"><\/i>\t\t\t<span class=\"elementor-screen-only\">Menu<\/span>\n\t\t<\/div>\n\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-1aa16a9f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-3047\"><a href=\"https:\/\/windsim.com\/services\/lidar-and-sodar-flow-curvature-correction\/\" class=\"elementor-item\" tabindex=\"-1\">LIDAR &#038; SODAR flow curvature correction<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-286\"><a href=\"https:\/\/windsim.com\/services\/basic-wind-speed\/\" class=\"elementor-item\" tabindex=\"-1\">Basic Wind Speed<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-287\"><a href=\"https:\/\/windsim.com\/services\/virtual-wind-data\/\" class=\"elementor-item\" tabindex=\"-1\">Virtual Wind Data<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-288\"><a href=\"https:\/\/windsim.com\/screening-of-potential-sites\/\" class=\"elementor-item\" tabindex=\"-1\">Screening of Potential Sites<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-289\"><a href=\"https:\/\/windsim.com\/measurement-campaign-design\/\" class=\"elementor-item\" tabindex=\"-1\">Measurement Campaign Design<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-290\"><a href=\"https:\/\/windsim.com\/services\/wind-data-analysis\/\" class=\"elementor-item\" tabindex=\"-1\">Wind Data Analysis<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-291\"><a href=\"https:\/\/windsim.com\/services\/micro-scale-wind-resource-mapping\/\" class=\"elementor-item\" tabindex=\"-1\">Micro-scale wind resource mapping<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-292\"><a href=\"https:\/\/windsim.com\/services\/optimized-wind-farm-design\/\" class=\"elementor-item\" tabindex=\"-1\">Optimized Wind farm design<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-293\"><a href=\"https:\/\/windsim.com\/services\/bankable-aep-assessment\/\" class=\"elementor-item\" tabindex=\"-1\">Bankable AEP assessment<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-294\"><a href=\"https:\/\/windsim.com\/services\/site-suitability\/\" class=\"elementor-item\" tabindex=\"-1\">Site Suitability<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-295\"><a href=\"https:\/\/windsim.com\/services\/post-construction-assessment\/\" class=\"elementor-item\" tabindex=\"-1\">Post Construction Assessment<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-296\"><a href=\"https:\/\/windsim.com\/services\/cfd-model-quality-assurance\/\" class=\"elementor-item\" tabindex=\"-1\">CFD model Quality assurance<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-6a343cd2\" data-id=\"6a343cd2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e352eb1 elementor-widget elementor-widget-text-editor\" data-id=\"e352eb1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>How does it work?<\/strong><\/p><p>You provide us the coordinates of your device and some additional information about its configuration in the form below. With this we can fetch terrain datasets of the surrounding areas which are used as an input in our CFD simulations.<\/p><p>The 3-D components of the simulated wind are extracted from the resulting wind flow model at the locations measured by the device. This information is aggregated in a similar manner as the device does (assuming homogeneous flow). By comparing this result with the actual simulated wind speed a correction factor is derived. This procedure is repeated for every directional sector, obtaining correction factors for each direction and height. Finally, the correction factors are applied to the original data depending on the measured wind direction.<\/p><p>Our procedure complies with IEC61400-12-1<\/p><p>You will receive a confirmation of your order. Within 72 hours after the confirmation, you will get a text file with the correction factor table. No NDAs or other type of contracts are required.<\/p><p>You can get a sample of the correction factor table files in this <a href=\"https:\/\/windsim.com\/Windsimarchive\/Service-Lidar-Sodar\/correction_wc.txt\"><u><strong>link<\/strong><\/u><\/a>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c36e96 elementor-widget elementor-widget-hubspot-form\" data-id=\"7c36e96\" data-element_type=\"widget\" data-widget_type=\"hubspot-form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\n\t\t\t\t\t<script>\n\t\t\t\t\t\twindow.hsFormsOnReady = window.hsFormsOnReady || [];\n\t\t\t\t\t\twindow.hsFormsOnReady.push(()=>{\n\t\t\t\t\t\t\thbspt.forms.create({\n\t\t\t\t\t\t\t\tportalId: 25043726,\n\t\t\t\t\t\t\t\tformId: \"20820ff6-e15c-4b45-a86d-a6eca0ed2fcc\",\n\t\t\t\t\t\t\t\ttarget: \"#hbspt-form-1714244871000-5347677595\",\n\t\t\t\t\t\t\t\tregion: \"eu1\",\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t})});\n\t\t\t\t\t<\/script>\n\t\t\t\t\t<div class=\"hbspt-form\" id=\"hbspt-form-1714244871000-5347677595\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-573cbe88 elementor-widget elementor-widget-text-editor\" data-id=\"573cbe88\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>LIDAR and SODAR flow curvature correction<\/strong><\/p><p>When a remote sensing device measures the wind in a point of interest, it actually doesn\u2019t measure the point of interest, it measures several points surrounding the point of interest. To derive wind speed and direction in the point of interest, all sampled measurements are aggregated by assuming the wind conditions to be homogeneous. This basic assumption is not true in complex terrain\u2014the wind field is not homogeneous in the surroundings of the point of interest\u2014so systematic errors are introduced in the measurements.<\/p><p>To deal with these errors, WindSim offers a correction service based on our CFD technology. In a nutshell, we can simulate the heterogeneity of the wind flow at the device position and therefore adjust for the faulty homogeneity assumption.<\/p><p>Without correction, wind speed measurements could present deviations on the order of 3%, a profit difference of about 20 MEUR for a 120 MW wind farm.<\/p><p>WindSim can support multiple devices like WindCube<sup>TM<\/sup>, ZX LIDAR, Triton and AQ System SODARs. For other devices please contact us.<\/p><p>\u00a0<\/p><p><strong>Correction service tailored for WindCube<sup>TM<\/sup>, Triton and AQ System SODARs<\/strong><\/p><p>For WindCube<sup>TM<\/sup> and SODAR devices we provide a specialized correction service. What makes it special is that our correction technique is based on the fact that these kinds of devices measure at few particular locations (Figure 1), in contrast to other technologies like continuous wave LIDARs. In addition, we consider the complete variability of the wind. Other techniques available in the market make use of \u201cuniversal\u201d corrections which are supposed to apply for any remote sensing device. These techniques only account for the wind aligned with the device and generally neglect the horizontal variability.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12778a6 elementor-widget elementor-widget-image\" data-id=\"12778a6\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"757\" height=\"380\" src=\"https:\/\/windsim.com\/wp-content\/uploads\/2021\/07\/Figur1_Diagram_WindCube.png\" class=\"attachment-large size-large wp-image-3017\" alt=\"\" srcset=\"https:\/\/windsim.com\/wp-content\/uploads\/2021\/07\/Figur1_Diagram_WindCube.png 757w, https:\/\/windsim.com\/wp-content\/uploads\/2021\/07\/Figur1_Diagram_WindCube-300x151.png 300w, https:\/\/windsim.com\/wp-content\/uploads\/2021\/07\/Figur1_Diagram_WindCube-16x8.png 16w\" sizes=\"(max-width: 757px) 100vw, 757px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ce1446 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"8ce1446\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>Our experience<\/strong><\/p><p>WindSim Service has been pioneering in Remote Sensing correction [1], with an extensive experience with more than 100 correction services provided globally. We also conducted one of the biggest validation campaigns for SODAR correction (Figure 2). WindSim software users have utilized our correction techniques for more than 10 years for all kind of remote sensing systems.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c5f8e1c elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"c5f8e1c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"543\" height=\"301\" src=\"https:\/\/windsim.com\/wp-content\/uploads\/2021\/07\/Figur2_Error_WS_Triton_SODAR.png\" class=\"attachment-large size-large wp-image-3018\" alt=\"\" srcset=\"https:\/\/windsim.com\/wp-content\/uploads\/2021\/07\/Figur2_Error_WS_Triton_SODAR.png 543w, https:\/\/windsim.com\/wp-content\/uploads\/2021\/07\/Figur2_Error_WS_Triton_SODAR-300x166.png 300w, https:\/\/windsim.com\/wp-content\/uploads\/2021\/07\/Figur2_Error_WS_Triton_SODAR-16x9.png 16w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-18e964c elementor-widget elementor-widget-text-editor\" data-id=\"18e964c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>Contact: <\/strong><strong><a href=\"mailto:consulting@windsim.com\">consulting@windsim.com<\/a>\u00a0<\/strong> \u00a0 \u00a0 \u00a0 \u00a0<\/p><p><strong>White papers &amp; case studies<\/strong><\/p><p><a href=\"https:\/\/windsim.com\/Windsimarchive\/library%20--%20papers-presentations\/Correction%20of%20LIDAR%20remote%20sensing%20measurements%20by%20CFD%20simulations.pdf\">Correction of LIDAR remote sensing measurements by CFD simulations<\/a><\/p><p><a href=\"https:\/\/windsim.com\/Windsimarchive\/Service-Lidar-Sodar\/2017_WindEurope_WindSim_Vaisala%20Improving%20Remote%20Sensor%20Accuracy%20and%20Uncertainty%20in%20Complex%20Terrain.pdf\">Improving Remote Sensor Accuracy and Uncertainty in Complex Terrain<\/a><\/p><p><a href=\"https:\/\/windsim.com\/Windsimarchive\/Service-Lidar-Sodar\/2206_WindSim_UM_Istos_Renewables_Petros_Theodoropoulos%20-%20WindSim%20Remote%20Sensing%20Correction%20Tool%20Case%20Study.pdf\">WindSim RSC tool case study<\/a><\/p><p><strong>References<\/strong><\/p><p>[1] Meissner C., Boquet M. \u201cCorrection of LIDAR remote sensing measurements by CFD simulations\u201d, 2011, EWEA Brussels<\/p><p>[2] Stoelinga M., LaWhite N. \u201cValidation of Triton Wind Profiler Measurements in Complex Terrain, Using WindSim CFD-Based Flow Curvature Correction\u201d, 2018, whitepaper<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Lidar and sodar flow curvature correction How does it work? You provide us the coordinates of your device and some additional information about its configuration in the form below. With this we can fetch terrain datasets of the surrounding areas which are used as an input in our CFD simulations. The 3-D components of the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":115,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/windsim.com\/wp-json\/wp\/v2\/pages\/3016"}],"collection":[{"href":"https:\/\/windsim.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/windsim.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/windsim.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/windsim.com\/wp-json\/wp\/v2\/comments?post=3016"}],"version-history":[{"count":50,"href":"https:\/\/windsim.com\/wp-json\/wp\/v2\/pages\/3016\/revisions"}],"predecessor-version":[{"id":4303,"href":"https:\/\/windsim.com\/wp-json\/wp\/v2\/pages\/3016\/revisions\/4303"}],"up":[{"embeddable":true,"href":"https:\/\/windsim.com\/wp-json\/wp\/v2\/pages\/115"}],"wp:attachment":[{"href":"https:\/\/windsim.com\/wp-json\/wp\/v2\/media?parent=3016"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}