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NOAA’s Deep Sea Coral Research and Technology Program (DSCRTP) is compiling a national database of the locations of deep-sea corals and sponges, beginning in U.S. waters. The DSCRTP will make this information accessible to resource managers, the scientific community, and the public over the World Wide Web. The database fulfills NOAA’s requirements under the Magnuson-Stevens Fishery Conservation and Management Act (MSA) to identify and map locations of deep-sea corals and to submit this information for use by regional fishery management councils. At present, there is no comprehensive, national-scale data portal for deep-sea corals and sponges. Given the authorities outlined in MSA, NOAA’s Deep Sea Coral Research...
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This part of the release provides an updated georeferenced catalog of limestone boulders and cobbles pertaining to extreme waves on Anegada, a low Caribbean island perched south of the Puerto Rico Trench. Tabulated are 660 limestone clasts, along with clast dimensions and long-axis trend in many instances. Fewer than one-fifth of the clasts were reported previously in https://doi.org/10.1007/s11069-011-9725-8 and https://doi.org/10.1130/GES01356.1. Most were surveyed in 2017.
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Species occurrence records of the taxonomic class of Bivalvia in oceans within 1000 kilometers of the United States shoreline. This is a subset of the OBIS-USA dataset where Bivalvia records were queried on December 2, 2014. After initial queries, the remaining data were further queried to retain only samples within 1000 kilometers of the U.S. shoreline. Spatial queries were then used to remove samples overlaying land masses. Data are provided in a geodatabase format, as well as a comma seperated values format. OBIS-USA provides aggregated, interoperable biogeographic data collected primarily from U.S. waters and oceanic regions--the Arctic, the Atlantic and Pacific oceans, the Caribbean Sea, Gulf of Mexico and...
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This part of the release provides an updated georeferenced catalog of coral boulders and cobbles pertaining to extreme waves on Anegada, a low Caribbean island perched south of the Puerto Rico Trench. The main taxa listed are the boulder star coral Orbicella franksii (37 localities), brain coral Pseudodiploria strigosa (171), elkhorn coral Acropora palmata (36), mustard hill coral Porites astreoides (29).
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This part of the data release provides a slightly expanded georeferenced catalog of field evidence for maximum water levels attained near the south shore of Anegada during 2010 Hurricane Earl, of category 4. The catalog consists of 13 localities observed in February 2011, six months after the hurricane. Wrack of plant fragments was the high-water indicator identified at most of them. Elevations have been estimated by extracting bare-ground elevations from a 2014 lidar survey, and by adjusting for heights above ground to which the wrack extended. The localities include two in eastern Anegada that were not reported in https://doi.org/10.5194/adgeo-38-21-2014).
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This part of the data release lists 18 localities where the shells of the tiger lucine Codakia orbicularis, a large marine bivalve, have been found on Anegada. Typically the shells were encountered a few tens of centimeters below ground in pits dug into sand. Most of the examples listed in the dataset were previously reported in https://doi.org/10.1130/GES01356.l -- field occurrences described p. 322, provenance interpreted p. 324, discordant radiocarbon ages discussed p. 324, and examples illustrated and mapped in Figure A9. The radiocarbon ages from lucines tabulated in this data set range across six radiocarbon centuries.
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This release provides inventories of georeferenced evidence pertaining to extreme waves on Anegada, a low Caribbean island perched south of the Puerto Rico Trench: CORAL BOULDERS AND COBBLES -- Derived offshore, found inland. Boulder star coral Orbicella franksii (37 localities), brain coral Pseudodiploria strigosa (171), elkhorn coral Acropora palmata (36), mustard hill coral Porites astreoides (29). LIMESTONE BOULDERS AND COBBLES -- Derived and found onshore (633). MOLLUSCAN SHELLS -- Queen conch Aliger gigas, discarded by precolonial fishers (12 onshore heaps) and by modern fishers (40 offshore heaps); individual conch shells deposited inland by precolonial sea flood (59); tiger lucine Codakia orbicularis, also...
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This part of the data release provides an updated georeferenced list of radiocarbon ages pertaining to evidence for a catastrophic precolonial sea flood on Anegada, a low Caribbean island perched south of the Puerto Rico Trench. The list contains 64 ages measured on carbonate materials and 3 ages measured on plant fragments. Among the total of 67 ages, 43 are among the 47 ages previously tabulated on page 318 of https://doi.org/10.1130/GES01356.l. The 67 ages exclude those from previous work on deposits attributable to the 1755 Lisbon tsunami (https://doi.org/10.1007/s11069-010-9622-6). Among the 67 ages listed, the 24 ages previously unreported were measured mainly on samples collected in 2017. The main material...
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This part of the release provides an georeferenced list on the most conspicuous of the onshore heaps of harvested conch shells on Anegada, a low Caribbean island perched south of the Puerto Rico Trench. The list locates 12 conch heaps noted in 2017 in the island's East End: Also listed are radiocarbon ages measured on shells from six of the heaps.
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This is an ArcGIS shapefile which depicts the seasonal salinity dynamics of 32 Gulf of Mexico estuaries. To characterize the dynamic nature of estuarine salinity gradients, a multivariate methodology (Bulger et al. 1993) was applied to derive five bio-salinity zones in four salinity seasons for 32 Gulf of Mexico estuaries (Christensen et al. 1997). This seasonal salinity zone spatial framework built upon and refined earlier studies which characterized salinity on an annual-averaged basis (NOAA 1985, Orlando et al. 1993, NOAA 2007). Precipitation, flow gage data, and monthly salinity averages were evaluated to determine which months would be used to represent the high, low, and transitional (increasing and decreasing)...
Categories: Data; Tags: Academics & scientific researchers, Apalachee Bay, Apalachicola Bay, Aransas Bay, Atchafalaya Bay, All tags...
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This Data Release accompanies the publication "State of stress in areas of active unconventional oil and gas development in North America" by J.-E. Lund Snee (now J.-E. Lundstern) and M.D. Zoback (2022) in the AAPG Bulletin. This dataset provides maximum horizontal stress (SHmax) orientation and relative stress magnitude (faulting regime) information that comprise a new-generation crustal stress map for North America. Relative stress magnitudes are presented using the Aϕ (A_phi) parameter, a single scalar that represents the ratio of the three principal stress magnitudes. Data were collected between 2015 and 2022. Data points for SHmax orientations, relative stress magnitudes, and the earthquake focal mechanisms...
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This part of the data release catalogs 40 offshore conch heaps mapped on airphotos and satellite images. Conch shells harvested around Anegada since the start of European colonization, which began late in the 18th century C.E., have been discarded in piles south of the southeastern part of the island, in the Caribbean Sea. Storm waves have notched some of these heaps and have flattened others. The catalog is based on interpretation of airphotos taken 2002 and of satellite images, accessed on Google Earth, taken in 2011–2019. Some of the offshore heaps were observed by boat in 2012, 2015, 2017, and (or) 2018. Repeat visits provided evidence for beveling during the hurricane season of 2017.
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This part of the data release aids in identifying places where land-clearing and wall-building, rather than a sea flood, may account for anomalous boulders and cobbles of Pleistocene limestone on Anegada. The wall shapefile delineates much of a network of walls found mainly on the east half of the island. It can be plotted in GIS with the shapefile of limestone clasts, most of which form boulder fields that trail southward from limestone knolls, promontories, and other outcrops. The comparison shows that these clast fields are most abundant on low ground in and near salt ponds, while the walls run mostly on higher ground.
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This part of the release provides an updated georeferenced catalog of strewn conch shells pertaining to extreme waves on Anegada, a low Caribbean island perched south of the Puerto Rico Trench. Three of the listed fragments were found whole, lacking any extraction hole from fishing. Others listed each contained a round hole from extraction of the meat in precolonial time. Still others were found too fragmentary to show whether they had been fished. Most of the fished shells listed are from the East End of Anegada. There, the listed shells in the south are near heaps of fished conchs, while the shells in the north rim an area of two hectares or more across which conch shells are strewn.
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May sea floods contaminate Anegada groundwater by entering a freshwater aquifer through sink holes? Groundwater provides the island's main naturally available source of freshwater. Robert Schomburgk in 1832 reported natural wells provided by holes in limestone (https://library.iucn-isg.org/documents/1832/Schomburgk_1832_The_Journal_of_the_Royal_Geographical_Society_of_London.pdf). Today, sinks in the limestone are readily mapped today in lidar topography. The dataset here identifies 1,508 closed topographic depressions. Several holding water were examined during field work in 2008–2017. The water level in them was close to mean sea level, as estimated from differences between lidar elevations of rims and depths...
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This part of the data release provides an updated georeferenced guide to the main unit of Holocene sand ascribed to a sea flood on Anegada. Much of the data was previously summarized in Figure A4 of https://doi.org/10.1130/GES01356.1 . Plotted here, on the accompanying map, are all 573 localities in the updated compilation —nearly half of which do not provide much if any evidence for marine inundation. The main attribute of each locality is one of four summary categories: Pervasive—Sand covers more than 3/4 of area and typically thicker than 5 cm (132 localities). Patchy—Sand covers less than 3/4 of area and typically thinner than 5 cm (185 localities). Scant—Called “Sand scarce or absent” in https://doi.org/10.1130/GES01356.1...
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This part of the release provides an updated list of places on Anegada, none of them more than 0.5 m above sea level, where observed sandy deposits may represent the Lisbon tsunami of 1755 C.E. These places were previously plotted in Figure A3 of https://doi.org/10.1130/GES01356.1, a paper in which the Lisbon tsunami is inferred to have had minor effects on Anegada compared with a sea flood a few centuries earlier. Details about the low, probable Lisbon deposits were previously reported in https://doi.org/10.1007/s11069-010-9622-6 (stratigraphy), https://doi.org/10.1007/s11069-011-9730-y (molluscan paleontology), and https://doi.org/10.1007/s11069-010-9706-3 (foraminifera).
    map background search result map search result map Bivalvia Subset of Ocean Biogeographic Information System (OBIS) - USA Dataset Collection for NFHP Thematic Viewer 20141202 Dynamic Five-Zone Salinity Scheme - Gulf of Mexico Maximum horizontal stress orientation and relative stress magnitude (faulting regime) data throughout North America Field evidence noted in 2008 to 2023 that pertains to sea floods of the past millennium on Anegada, British Virgin Islands Fished conch shells in modern heaps noted in 2012 to 2018 that were largely reshaped by storm waves offshore Anegada, British Virgin Islands Onshore conch heaps noted in 2012 to 2018 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands Strewn conch shells noted in 2008 to 2017 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands Coral clasts noted in 2008 to 2017 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands Field traces in February 2011 of high-water levels from 2010 Hurricane Earl, as calibration for sea floods of the past 1,000 years on Anegada, British Virgin Islands Limestone boulders and cobbles noted 2009 to 2017 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands Strewn shells of a large marine bivalve noted 2008 to 2017 on Anegada, British Virgin Islands Radiocarbon ages measured 2011 to 2021 on corals, shells, and plant fragments pertaining to sea floods of the past 1,000 years on Anegada, British Virgin Islands Low-lying sandy deposit observed 2008 to 2013 and dated to later than 1650 C.E. on Anegada, British Virgin Islands Presence and absence of a widespread unit of Holocene marine sand observed in 2008 to 2017 in tsunami-hazard assessments on Anegada, British Virgin Islands Closed depressions in 2014 lidar topography in areas of Pleistocene limestone on Anegada, British Virgin Islands Rock walls mapped from 2002 airphotos and 2014 lidar topography of Anegada, British Virgin Islands Onshore conch heaps noted in 2012 to 2018 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands Low-lying sandy deposit observed 2008 to 2013 and dated to later than 1650 C.E. on Anegada, British Virgin Islands Field traces in February 2011 of high-water levels from 2010 Hurricane Earl, as calibration for sea floods of the past 1,000 years on Anegada, British Virgin Islands Fished conch shells in modern heaps noted in 2012 to 2018 that were largely reshaped by storm waves offshore Anegada, British Virgin Islands Strewn conch shells noted in 2008 to 2017 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands Rock walls mapped from 2002 airphotos and 2014 lidar topography of Anegada, British Virgin Islands Strewn shells of a large marine bivalve noted 2008 to 2017 on Anegada, British Virgin Islands Radiocarbon ages measured 2011 to 2021 on corals, shells, and plant fragments pertaining to sea floods of the past 1,000 years on Anegada, British Virgin Islands Presence and absence of a widespread unit of Holocene marine sand observed in 2008 to 2017 in tsunami-hazard assessments on Anegada, British Virgin Islands Closed depressions in 2014 lidar topography in areas of Pleistocene limestone on Anegada, British Virgin Islands Limestone boulders and cobbles noted 2009 to 2017 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands Coral clasts noted in 2008 to 2017 that pertain to sea floods of the past 1,000 years on Anegada, British Virgin Islands Field evidence noted in 2008 to 2023 that pertains to sea floods of the past millennium on Anegada, British Virgin Islands Dynamic Five-Zone Salinity Scheme - Gulf of Mexico Maximum horizontal stress orientation and relative stress magnitude (faulting regime) data throughout North America Bivalvia Subset of Ocean Biogeographic Information System (OBIS) - USA Dataset Collection for NFHP Thematic Viewer 20141202