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    • Gulf of Mexico Hypoxia Watch Bottom Dissolved Oxygen Contours for June and July SEAMAP Cruise of 2009

    Metadata Updated: October 20, 2023

    The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana continental shelf during a period that extends from mid-June to mid-July. The NOAA National Marine Fisheries Service Mississippi Laboratories at Pascagoula and Stennis Space Center and the NOAA's National Centers for Environmental Information (NCEI) began the Hypoxia Watch project in 2001. Scientists aboard the NOAA Research Vessel Oregon II measure seawater properties, such as water temperature, salinity, chlorophyll, and dissolved oxygen, as the Oregon II cruises the waters south of Pascagoula, MS and then makes its way from Brownsville, Texas, to the mouth of the Mississippi River. A scientist aboard the ship processes the measurements from electronic dissolved oxygen sensors, checks the measurements periodically with chemical analyses of the seawater, then sends the data by FTP to the NCEI approximately every three to four days. Physical Scientists at NCEI transform the dissolved oxygen measurements into contour maps, which identify areas of low oxygen, or hypoxia. During the cruise, as the data is received from the ship, NCEI generates new maps and publishes them on the web. The first map will usually cover an area off the Mississippi coast, successive maps will add areas of the continental shelf from Brownsville to Corpus Christi, and the final map will usually cover the entire Texas-Louisiana-Mississippi coast. Maps are published every three to four days from approximately June 22 to July 20.

    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 October 17, 2023
    Metadata Created Date October 6, 2023
    Metadata Updated Date October 20, 2023
    Reference Date(s) (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NESDIS/NCEI/GIS

    Other Data Resources

    Graphic Preview

    2009 Hypoxia Contours

    Additional Metadata

    Resource Type Dataset
    Metadata Date October 17, 2023
    Metadata Created Date October 6, 2023
    Metadata Updated Date October 20, 2023
    Reference Date(s) (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncei:Oregon287_Contours_2009
    Access Constraints Cite as: NOAA National Centers for Environmental Information. 2009. Gulf of Mexico Hypoxia Watch Bottom Dissolved Oxygen Contours for June and July SEAMAP Cruise of 2009. NOAA National Centers for Environmental Information. Accessed [date]., Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -86.37
    Bbox North Lat 30.35
    Bbox South Lat 25.99
    Bbox West Long -97.36
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description 2009 Hypoxia Contours
    Graphic Preview File https://www.ncei.noaa.gov/waf/hypoxia-waf/maps/2009-hypoxia-contours.jpg
    Graphic Preview Type JPEG
    Harvest Object Id c5d1cb69-b069-428d-a580-b66fbb67549b
    Harvest Source Id 1451ffde-a127-4b4e-8fa1-a615a74536ba
    Harvest Source Title NESDIS/NCEI/GIS
    Licence Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series.
    Lineage
    Metadata Language eng; USA
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-97.36, 25.99], [-86.37, 25.99], [-86.37, 30.35], [-97.36, 30.35], [-97.36, 25.99]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System urn:ogc:def:crs:EPSG::4269
    Spatial Harvester True
    Temporal Extent Begin 2009-06-08
    Temporal Extent End 2009-07-17

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