gov.noaa.ncei:SEAFLEAsDatabase dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2025-09-18T15:51:30 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) SEAfloor FLuid Expulsion Anomalies (SEAFLEAs) Database 2019-05-19 publication 2019-02-01 NOAA National Centers for Environmental Information 2019-05-19 publication NCEI Metadata ID: gov.noaa.ncei:SEAFLEAsDatabase Benjamin Phrampus U.S. Naval Research Laboratory Physicist Stennis Space Center Mississippi 39529 United States benjamin.phrampus@nrlssc.navy.mil author Taylor Lee U.S. Naval Research Laboratory Research Geophysicist Stennis Space Center Mississippi 39529 United States taylor.lee@nrlssc.navy.mil author Warren Wood U.S. Naval Research Laboratory Head, Seafloor Sciences Branch Stennis Space Center Mississippi 39529 United States warren.wood@nrlssc.navy.mil author Kate Rose Mississippi State University Senior Research Associate Stennis Space Center Mississippi 39529 United States kater@ngi.msstate.edu collaborator mapDigital This GIS shapefile shows the locations and types of SEAfloor FLuid Expulsion Anomalies (SEAFLEAs) compiled by researchers at the US Naval Research Laboratory (NRL) at Stennis Space Center, Mississippi. SEAFLEAs is a collaborative, global, open-source database of anomalies, including any feature that is indicative of past or present fluid expulsion such as: bubble plumes within the water column, seafloor mounds, pockmarks, seafloor gas hydrate, shallow gas deposits, authigenic carbonates (hardgrounds), and chemosynthetic communities. The SEAFLEAs database holds many different fluid expulsion anomalies, as no one anomaly is indicative of all fluid expulsion environments or temporal/geologic regimes. The SEAFLEAs database is an attempt to combine both present and recent geologic past (~10 ka) fluid expulsion anomalies into one single database. By establishing a collaborative database, NRL scientists intend to create a central information source and to distribute the administrative burdens. Contributors will add to the database simultaneously with their own research efforts. The database is intended to be impactful and enduring, creating a foundation for global, regional, and site-specific research into seafloor seepage and serving as a starting point for prediction of regional and global trends, hazards, and other seafloor phenomena. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://data.noaa.gov/docucomp/image/5abab464-7994-49fc-8a2f-ec337a11bfd4 NOAA logo PNG EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ABYSSAL > COLD SEEP EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > GAS HYDRATES > GAS HYDRATES VERTICAL/GEOGRAPHIC DISTRIBUTION EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > CHEMOSYNTHESIS theme Global Change Master Directory (GCMD) Science Keywords 22 Geoform Component > Geoform > Geologic Geoform > Pockmark Water Column Component > Biogeochemical Feature > Seep Geoform Component > Geoform > Geologic Geoform > Mound/Hummock theme Coastal and Marine Ecological Classification Standard 1.1 GEOGRAPHIC REGION > GLOBAL OCEAN place Global Change Master Directory (GCMD) Location Keywords 22 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 22 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian These data not to be used for navigation. These data are useful for planning and modeling purposes, but are not suitable for navigation or any other purpose relating to safety at sea. Please credit the Naval Research Lab (NRL) for the underlying database and images and the NOAA National Centers for Environmental Information (NCEI) for the map viewer. otherRestrictions 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 otherRestrictions 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. license These data are not subject to copyright protection in the United States. Any potential copyright and related rights in these data is waived worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0). SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0) SEAfloor FLuid Expulsion Anomalies (SEAFLEAs) Web Map Application 2025-09-30 publication mapDigital NOAA Geoplatform ESRI Instant App dependency eng; USA biota oceans geoscientificInformation -180.0 180.0 -90.0 90.0 1984 2016-09-06 1 This dataset displays locations of various types of seafloor, subsurface, and water column features on the seafloor that indicate potential presence of gas, hydrates, and chemosynthetic activity thematicClassification eng; USA 0 Gas_Bubble: presence of gas bubbles in the water column Mound: a rounded elevation on the seafloor Pockmark: concave depressions on the seafloor Hydrate: deposits of hydrate material Shallow Gas: subsurface gas deposit Hardground: hard surface area on the seafloor Chemosynthetic Community: presence of chemosynthetic organisms Ref: internal reference number Data_Base_: unique numerical reference Long_dd: longitude location in decimal degrees of the observation Lat_dd_: latitude location in decimal degrees of theobservation LocUncert_: uncertainty in meters of the location of the observation Depth__m_: depth in meters of the observation MM: the month of the observation DD: the day of the observation YYYY: the year of the observation DDMMYYYY: the date of the observation HH__UTC_: the hour in Coordinated Universal Time of the observation MM__UTC_: the minute in Coordinated Universal Time of the observation SS__UTC_: the second in Coordinated Universal Time of the observation B_Diam__mm: the diameter in millimeters of the bubble plume M_Height__: the height that the mound feature extends above the seafloor M_Radius__: the radius of the mound feature PM_Depth__: depth in meters from the rim to the bottom of the depression PM_Radius_: radius in meters of the pockmark Top_of_Gas: depth in meters from the seafloor surface to the top of the subsurface gas presence SourceRef: citation for the source of the data/observation SourceRef_: URL for the source data publication NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact Free electronic download Contact NCEI for other distribution options and instructions shapefile 02/01/2019 https://noaa.maps.arcgis.com/home/item.html?id=cadfd4b1122f48e2884f929635489fda#overview https Web Browser SEAfloor Fluid Expulsion Anomalies Web Feature Layer Item Overview NOAA Geoplatform information dataset asNeeded