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    • OSU FLH Bloom Product, Aqua Modis, Northwest US, 2002-2015, Lon0360

    Metadata Updated: June 10, 2023

    Two bloom products were developed for the Oregon coast based on the observed change between running 8-day composite chlorophyll-a (CHL) and fluorescence line-height (FLH) products obtained by the MODerate Resolution Imaging Spectraradiometer aboard Aqua (MODIS-Aqua). These products were optimized to detect bloom onset via satellite in Oregon's coastal waters, a region typified by high frequency biological variance yet pervasive cloud cover (see McKibben et al. 2012, JGR-Oceans). The products are based on running relative differences between successive 8-day products: a current composite (an average of the previous 8 days) and a reference composite (an average of the 8-day period immediately preceding the current composite). The reference is differenced from the current, then the result is normalized to the reference. Resulting daily imagery highlights the geographic locations of greatest relative change observed between weekly average CHL or FLH over time, providing a way to track onset and advection of active blooms over time. Note the product is optimized to work best in Oregon's coastal waters, although it is operational further offshore and to the north or south as satellite coverage permits (coverage is increasingly better to the south and worst further offshore and to the north of Oregon). The bloom product accessible from this page is based on MODIS-Aqua FLH and shows the percent relative change in FLH over time. THIS IS AN EXPERIMENTAL PRODUCT: intended strictly for scientific evaluation by professional marine scientists.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date September 3, 2022
    Metadata Created Date July 16, 2021
    Metadata Updated Date June 10, 2023
    Reference Date(s) September 3, 2022 (creation)
    Frequency Of Update

    Metadata Source

    Harvested from Pacific Fisheries Environmental Laboratory

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 3, 2022
    Metadata Created Date July 16, 2021
    Metadata Updated Date June 10, 2023
    Reference Date(s) September 3, 2022 (creation)
    Responsible Party Oregon State University (Point of Contact)
    Contact Email
    Guid osuBloomsModisCflh_Lon0360
    Access Constraints
    Bbox East Long -121.0
    Bbox North Lat 52.0
    Bbox South Lat 34.0
    Bbox West Long -134.0
    Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
    Frequency Of Update
    Harvest Object Id ebbc1131-9d6a-4e2a-9c04-e27debd4333b
    Harvest Source Id 817069b7-5f4e-4664-9e6b-615af3dfcf2d
    Harvest Source Title Pacific Fisheries Environmental Laboratory
    Licence
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-134.0, 34.0], [-121.0, 34.0], [-121.0, 52.0], [-134.0, 52.0], [-134.0, 34.0]]]}
    Progress
    Spatial Data Service Type ERDDAP griddap
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2002-08-15T00:00:00Z
    Temporal Extent End 2015-06-21T00:00:00Z

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