Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Gulf of Mexico Hypoxia Watch Bottom Dissolved Oxygen Contours for SEAMAP Cruises of 2001 - 2024

    Metadata Updated: November 8, 2024

    The NOAA Hypoxia Watch project provides near-real-time, web-based maps of dissolved oxygen near the sea floor over the Texas-Louisiana-Florida continental shelf during a period that extends from early June to mid-July. In 2008, there was a fall Hypoxia Watch Cruise in October and November. The NOAA National Marine Fisheries Service Mississippi Laboratories at Pascagoula and Stennis Space Center and the NOAA National Centers for Environmental Information (NCEI) at Stennis Space Center 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 at each of approximately 240 locations as the Oregon II makes its way from Brownsville, Texas, to the mouth of the Mississippi River, then into Florida waters. 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 e-mail to NCEI at Stennis Space Center approximately every three to five days. Personnel at NCEI transform the dissolved oxygen measurements into contour maps, which identify areas of low oxygen, or hypoxia. During the 6-week cruise, as the data is received from the ship, NCEI generates new maps and immediately publishes them on the web. The first map will usually cover an area near Brownsville, TX, then gradually areas along the Texas, Louisiana, and Florida coasts will be added. Maps are published every three to five days from approximately June 10 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 September 26, 2024
    Metadata Created Date October 19, 2024
    Metadata Updated Date November 8, 2024
    Reference Date(s) (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NESDIS/NCEI/GIS

    Other Data Resources

    Additional Metadata

    Resource Type Series
    Metadata Date September 26, 2024
    Metadata Created Date October 19, 2024
    Metadata Updated Date November 8, 2024
    Reference Date(s) (publication)
    Responsible Party NOAA National Centers for Environmental Information (Point of Contact)
    Contact Email
    Guid gov.noaa.ncei:Oregon_Contours_AllYears
    Access Constraints 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 -81.878787
    Bbox North Lat 30.33359
    Bbox South Lat 24.771015
    Bbox West Long -97.407
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id 8304484f-89c0-43d2-871f-bc6205bf420c
    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": [[[-97.407, 24.771015], [-81.878787, 24.771015], [-81.878787, 30.33359], [-97.407, 30.33359], [-97.407, 24.771015]]]}
    Progress
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2001-06-13
    Temporal Extent End 2024-07-10

    Didn't find what you're looking for? Suggest a dataset here.