{"id":10547,"date":"2025-10-17T01:53:29","date_gmt":"2025-10-17T01:53:29","guid":{"rendered":"https:\/\/dornsife.usc.edu\/uscseagrant\/?page_id=10547"},"modified":"2025-10-17T01:55:37","modified_gmt":"2025-10-17T01:55:37","slug":"california-estuary-assessment-tool","status":"publish","type":"page","link":"https:\/\/dornsife.usc.edu\/uscseagrant\/california-estuary-assessment-tool\/","title":{"rendered":"California Estuary Assessment Tool"},"content":{"rendered":"\n\n\n\n \n \n\n\n\n\n\n\n\n
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The California Estuary Assessment (CEA) tool provides remotely-sensed <\/span>information about mouth state and inundation extent of California bar-built estuaries (BBEs) with the goal of informing BBE management. This Google Earth Engine tool is free to use and does not require any coding knowledge. Links to the tool, user guide, and publication are available below:
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CEA Tool<\/span><\/a><\/p>\n

CEA Tool User Guide<\/span><\/a>\u00a0<\/span><\/p>\n

Peer-Reviewed Publication Regarding the CEA Tool <\/span><\/a><\/p>\n\n\n\n<\/div>\n\n\n <\/div><\/div>\n\n\n\n\n \n \n\n\n\n\n\n\n\n

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Why is the CEA Tool so Important?<\/strong><\/h2>\n

Bar-built estuaries (BBEs) are highly dynamic habitats that are subject to various natural and anthropogenic factors influencing their environmental state. It is crucial to monitor BBEs in California to protect estuarine ecosystem services, including estuary function, structure, diversity, cultural value, and educational value. Traditional in situ monitoring can be expensive, time-consuming, difficult, and physically demanding. This can limit resource managers\u2019 capacity to engage in consistent and robust monitoring ofBBEs. The CEA Tool supports monitoring efforts by using freely available satellite data that complements in situ data collection. Satellite imagery archives allow users to assess both historical patterns and near-real-time status of estuary mouth state and inundation extent.<\/span><\/p>\n

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A screenshot of the CEA Tool displaying a closed mouth state for the Navarro River Estuary on 11\/7\/2024. The sidebar on the left is a subsample of data that the CEA Tool can display per estuary. These data include: a time series of openings and closures, a legend for NDWI, and inundation over time.<\/figcaption><\/figure>\n
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A screenshot of the CEA Tool displaying an open mouth state for the Navarro River Estuary on 11\/27\/2024. The sidebar on the left is a subsample of data that the CEA Tool can display per estuary. These data include: a time series of openings and closures, a legend for NDWI, and inundation over time.<\/figcaption><\/figure>\n\n\n\n<\/div>\n\n\n <\/div><\/div>\n\n\n\n\n \n \n\n\n\n\n\n\n\n
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USC Sea Grant’s Role<\/strong><\/h2>\n

USC Sea Grant has partnered with the CEA Tool developers in order to host the tool, along with other relevant project links. Hosting the CEA Tool on USC Sea Grant\u2019s website ensures that the tool remains free and easily accessible. Additionally, the USC Sea Grant team supports training and education about the tool, including through a recent educational webinar hosted by our AdaptLA program and featuring tutorials and assistance by the tool creators.<\/span><\/p>\n

USC Sea Grant\u2019s <\/span>AdaptLA Program<\/span><\/a> provides leadership, technical assistance, training workshops, and webinars, including those on the use of the CEA Tool, to inform planning efforts with the best available science for coastal practitioners across the greater Los Angeles region. <\/span><\/p>\n\n\n\n<\/div>\n\n\n <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":74,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-10547","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nCalifornia Estuary Assessment Tool - USC Sea Grant<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dornsife.usc.edu\/uscseagrant\/california-estuary-assessment-tool\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"California Estuary Assessment Tool - 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