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Oral Session 10<\/a> | Thursday, October 6, 14:40\u201315:00 | Abstract 482<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Extended abstracts” _builder_version=”4.18.0″ link_font=”||||on||||” header_3_font=”|800||on|||||” header_3_text_color=”#057184″ header_3_font_size=”20px” header_3_line_height=”1.3em” background_size=”initial” background_position=”top_left” background_repeat=”repeat” custom_margin=”7px||2px|||” custom_padding=”||15px|||” hover_enabled=”0″ use_border_color=”off” global_colors_info=”{}” link_text_color__hover=”#a5a5a5″ link_text_color__hover_enabled=”on|hover” theme_builder_area=”post_content” sticky_enabled=”0″]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Extended abstracts” _builder_version=”4.18.0″ link_font=”||||on||||” header_3_font=”|800||on|||||” header_3_text_color=”#057184″ header_3_font_size=”20px” header_3_line_height=”1.2em” background_size=”initial” background_position=”top_left” background_repeat=”repeat” custom_margin=”7px|||||” hover_enabled=”0″ use_border_color=”off” global_colors_info=”{}” link_text_color__hover=”#a5a5a5″ link_text_color__hover_enabled=”on|hover” theme_builder_area=”post_content” sticky_enabled=”0″]<\/p>\n Optical closure refers to the consistency between measured Apparent Optical Properties (AOPs) and simulated AOPs using radiative transfer equations for given boundary conditions and measured Inherent Optical Properties (IOPs). Optical closure experiments are usually performed to check the consistency of in situ AOPs and IOPs in course of bio-optical characterization or inverse model development. However, achieving optical closure can be challenging in case-2 waters, especially in dark waters dominated by Coloured Dissolved Organic Matter (CDOM), due to weak radiometric signal, measurement uncertainties in AOPs and IOPs and also possibly from ignoring inelastic scattering contribution in modelling the closure. Here we investigate the contribution of inelastic scattering components (CDOM fluorescence; f_DOM and sun-induced chlorophyll fluorescence; SICF) in dark waters sampled in the nearshore zone of lower St. Lawrence Estuary in Canada, in the framework of an airborne hyperspectral data acquisition campaign. HydroLight v6.0 and a semi-analytical (Albert and Mobley, 2003) radiative transfer model were used to simulate the remote-sensing reflectance; R_rs using multiple sets of measured IOPs (Hydroscat-6, BB9, AC-S, A-sphere). We found that accounting for f_DOM and SICF improved the closure significantly (excluding inelastic: R-sqaured=0.89, slope=0.72; including inelastic: R-squared=0.93, slope=0.80), especially at green (555-590nm) and red wavelengths (667-710nm). We also quantified the inelastic scattering equivalent R_rs fraction across the affected spectral domain (At green, ~13% from f_DOM and ~17% at red from SICF). We conclude that optical closure studies should account for inelastic scattering components in R_rs for CDOM dominated dark waters in nearshore environments.<\/p>\n \n *Soham Mukherjee<\/b><\/span><\/a>, Universit\u00e9 du Qu\u00e9bec \u00e0 Rimouski, 0000-0001-9771-0778<\/p>\n John Hedley<\/a><\/span>, Numerical Optics Ltd.<\/p>\n C\u00e9dric Fichot<\/a><\/span>, Boston University<\/p>\n Julien Lalibert\u00e9<\/a><\/span>, Fisheries and Oceans Canada<\/p>\n Simon B\u00e9langer<\/a><\/span>, Universit\u00e9 du Qu\u00e9bec \u00e0 Rimouski<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|tablet” _builder_version=”4.14.7″ _module_preset=”default” background_enable_color=”off” background_image=”https:\/\/oceanopticsconference.org\/wp-content\/uploads\/2022\/01\/oo22-banner-bckd.jpg” custom_padding=”0px||11px||false|false” custom_padding_tablet=”0px||11px||false|false” custom_padding_phone=”||27px||false|false” global_module=”2766″ saved_tabs=”all” locked=”off” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row _builder_version=”4.16″ _module_preset=”default” custom_padding=”0px||8px||false|false” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_social_media_follow use_icon_font_size=”on” icon_font_size=”19px” _builder_version=”4.16″ _module_preset=”default” custom_button=”on” text_orientation=”right” custom_margin=”-10px||11px||false|false” custom_margin_tablet=”-9px||5px||false|false” custom_margin_phone=”-9px||5px||false|false” custom_margin_last_edited=”on|tablet” global_colors_info=”{}” button_text_size__hover_enabled=”on|desktop” theme_builder_area=”post_content”][et_pb_social_media_follow_network social_network=”facebook” url=”https:\/\/www.facebook.com\/OceanOpticsConference\/” _builder_version=”4.16″ _module_preset=”default” background_color=”#9b9b9b” background_enable_color=”on” global_colors_info=”{}” background__hover_enabled=”on|hover” background_color__hover=”#0C71C3″ background_enable_color__hover=”on” theme_builder_area=”post_content” follow_button=”off” url_new_window=”on”]facebook[\/et_pb_social_media_follow_network][et_pb_social_media_follow_network social_network=”twitter” url=”https:\/\/twitter.com\/OceanOpticsConf” _builder_version=”4.16″ _module_preset=”default” background_color=”#9b9b9b” background_enable_color=”on” global_colors_info=”{}” background__hover_enabled=”on|hover” background_color__hover=”#0C71C3″ background_enable_color__hover=”on” theme_builder_area=”post_content” follow_button=”off” url_new_window=”on”]twitter[\/et_pb_social_media_follow_network][\/et_pb_social_media_follow][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ use_custom_gutter=”on” gutter_width=”2″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”13px||34px|0px||” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”1_3″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.16″ _module_preset=”default” header_font_size=”26px” header_2_font=”|||on|||||” header_2_text_align=”center” header_2_text_color=”#FFFFFF” header_2_font_size=”21px” text_orientation=”center” custom_margin=”||5px|||” global_colors_info=”{}” theme_builder_area=”post_content”]<\/p>\n [\/et_pb_text][et_pb_text _builder_version=”4.16″ _module_preset=”default” text_text_color=”#FFFFFF” link_font=”||||on||||” link_text_color=”#FFFFFF” header_2_text_color=”#FFFFFF” max_width=”300px” module_alignment=”center” custom_margin=”||||false|false” custom_margin_tablet=”||-3px||false|false” custom_margin_phone=”” custom_margin_last_edited=”on|tablet” custom_padding_tablet=”||||false|false” custom_padding_phone=”||32px||false|false” custom_padding_last_edited=”on|phone” global_colors_info=”{}” link_text_color__hover_enabled=”on|hover” link_text_color__hover=”#a8a8a8″ theme_builder_area=”post_content”]<\/p>\n Sign up to receive email updates to be sure to catch all the meeting news. 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Optical closure experiments are usually performed […]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":""},"_links":{"self":[{"href":"https:\/\/oceanopticsconference.org\/wp-json\/wp\/v2\/pages\/6441"}],"collection":[{"href":"https:\/\/oceanopticsconference.org\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/oceanopticsconference.org\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/oceanopticsconference.org\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/oceanopticsconference.org\/wp-json\/wp\/v2\/comments?post=6441"}],"version-history":[{"count":2,"href":"https:\/\/oceanopticsconference.org\/wp-json\/wp\/v2\/pages\/6441\/revisions"}],"predecessor-version":[{"id":6451,"href":"https:\/\/oceanopticsconference.org\/wp-json\/wp\/v2\/pages\/6441\/revisions\/6451"}],"wp:attachment":[{"href":"https:\/\/oceanopticsconference.org\/wp-json\/wp\/v2\/media?parent=6441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Significance of inelastic scattering in optical closure of CDOM-rich coastal waters<\/h3>\n
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