2011 Summer Hypoxia Watch Bottom CTD Station Locations

Metadata Updated: February 7, 2018

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 early 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 at each of approximately 240 locations 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 e-mail to NCEI at Stennis Space Center approximately every three to five days. Physical Scientists 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 off the Mississippi coast, successive maps will add areas of the continental shelf from Brownsville to Galveston, and the final map will usually cover the entire Texas-Louisiana-Mississippi coast. Maps are published every three to five days from approximately June 10 to July 20.

Access & Use Information

Downloads & Resources


Metadata Date July 22, 2016
Metadata Created Date February 7, 2018
Metadata Updated Date February 7, 2018
Reference Date(s) (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

Map image of Hypoxia Stations 2011

Additional Metadata

Resource Type Dataset
Metadata Date July 22, 2016
Metadata Created Date February 7, 2018
Metadata Updated Date February 7, 2018
Reference Date(s) (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Access Constraints: None Use Constraints: None Distribution Liability: NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA, NESDIS, NCEI cannot assume liability for any damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system.
Bbox East Long -89.271
Bbox North Lat 29.589833
Bbox South Lat 27.9575
Bbox West Long -94.121833
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Map image of Hypoxia Stations 2011
Graphic Preview File https://service.ncddc.noaa.gov/rdn/www/media/hypoxia/maps/2011-hypoxia-stations.jpg
Graphic Preview Type JPEG
Guid gov.noaa.ncei.2011stations
Harvest Object Id 6b51b80e-45e1-4f69-bd64-b91218d148e3
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2011-06-25
Temporal Extent End 2011-07-17

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