Description: Compilation of core collection locations and accompanying data Project: MGS/ASSAT - Assateague State Park Beach and Dune Restoration Project - Maryland Geological Survey, 1995 MGS/DGS-I - Offshore Sand Resource Study, First Year - Maryland Geological Survey, 1992-1993 (Conkwright & Gast, #94-8) MGS/DGS-II - Offshore Sand Resource Study, Second Year - Maryland Geological Survey, 1993-1994 MGS/DGS-4 - Offshore Sand Resource Study, Fourth Year - Maryland Geological Survey, 1995-1996 OCBRP-I - Ocean City Beach Replenishment Project, Phase I - Md. Department Natural Resourse/U.S Army Corps of Engineers, 1986-1987 OCBRP-II - Ocean City Beach Replenishment Project, Phase II - U.S. Army Corps of Engineers/Md. Department of Natural Resources, 1987-1988 OCBRP-III - Ocean City Beach Replenishment Project, Phase III: Future maintenance - U.S. Army Corps of Engineers/Md. Department of Natural Resources, 1989-1990 OCBRP-IIIa - Ocean City Beach Replenishment Project, Phase IIIa: Future maintenance - U.S. Army Corps of Engineers/Md. Department of Natural Resources, 1992 OCWRFS - Ocean City Water Resources Feasibility Study - U.S. Army Corps of Engineers/Md. Department of Natural Resources, 1995-1997 USGS/MGS - Stratigraphic Framework of Maryland's Inner Continental Shelf - Maryland Geological Survey/Mineral Management Services, 1985-1989 REFS: Wells, D. and R. Conkwright. 1996. Physical Inventory and Repository of Vibracores Collected on Maryland's Continental Shelf. Coastal and Estuarine Geology Program File Report No. 96-6 Conkwright, R.D. and R.A. Gast. 1994. Potential Offshore Sand Resources in Northern Maryland Shoal Fields. Coastal and Estuarine Geology File Report #94-8
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: Compiled data from MGS sediment grab samples from 1984-2012 (listed in order of ascending FID #) 2007 - These samples were collected using a Van Veen grab sampler. Samples were collected on 3/12/2007 as part of the Ocean City, MD Sand Shoal Study conducted by the Alpine Ocean Seismic Survey. 2011 - These samples were collected as part of CZM Agreement 14-14-1846 CZM 151 (Chesapeake and Coastal Services) 2012 - These samples were collected as part of CZM Agreement 14-14-1846 CZM 151 (Chesapeake and Coastal Services) 1984 - 131 grab samples were collected during the summer of 1984. This work was associated with cooperative agreement 14-12-001-30316 between Maryland Geological Survey and the Bureau of Economic Geology University of Texas at Austin as agent for Branch of Geologic and Geophysical Studies Minerals Management Survice Reston, VA (Brooks, 1988) - REFS: Brooks, J.R. 1988. Sieve Analyses and Heavy Mineral Concentrations of the Sand Portions of Cores Taken from the Inner Continental Shelf of Maryland. Maryland Geological Survey, Baltimore MD. 2008 - Six grab samples were collected during the survey of Jack Spot Shoal on 6/12/2008. 1998 - Virginia Institute of Marine Sciences (VIMS) grab samples. "The primary data on which to base this set of studies were obtained during the course of a research cruise in 1998 and a second cruise in 1999. Instruments used on either or both cruises inclued a standard “Young” grab with a 0.044 m2 surface area for sediment samples, a Hulcher model Minnie Sediment profile camera (SPI), a standard bottom imaging sled which carried video cameras and water quality sensors, a Burrow-Cutter-Diaz Plowing Sediment Profile Camera System, a 600kHz high resolution side-scan sonar, and a 2.4 m (8 ft) beam trawl to collect juvenile fish, epibenthos, and macrobenthos. In addition to analyses of the samples and images, the data were coded for display in a Geographic Information System (GIS)(Cutter et al, 2000)." - REFS: Cutter, Jr., G.R., Diaz, R.J., Musick, J.A., Olney, Sr., J., Bilkovic, D.M., Maa, J.P.-Y., Kim, S.-C., Hardaway, Jr., C.S., Milligan, D.A., Brindley, R., Hobbs, III, C.H. 2000. Environmental Survey of Potential Sand Resource Sites Offshore Delaware and Maryland. OCS Study 2000-055 Final Report.
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: Volumetric estimations for Fenwick, Weaver, & Isle of Wight shoals used vibracore data collected in 1992 & 1997, volumes were calculated in 2000 (Conkwright, Williams and Christiansen, 2000). Borrow Area 2 has been virtually exhausted by dredging. Between 1988-1992, ~2.9 million m^3 was dredged from Borrow Area 2, ~4.2 million m^3 dredged from Borrow Area 3, and ~3.2 million m^3 dredged from Borrow Area 9 (Wells, 1994). Revised volumentric estimations for Shoals B, C, D, Little Gull Bank & Great Gull Bank (1996) "In the 1993 sand resources study (Conkwright and Gast, 1994b) the seismically defined ravinement surface was used as the lower structural boundary for volume calculations. However, the purpose of the current study is to estimate only the volume of sand with measured physical parameters. Therefore, the lower boundary for volumetric calculations was determined primarily by the grain size parameters of vibracore samples. The lower boundary surface was set at the depth where the sampled sand became too fine or too poorly sorted for use as beach fill. In those cases where the entire length of core contained usable sand, the boundary surface was set at the depth of maximum vibracore penetration. Because vibracore penetrations on Little and Great Gull Banks were generally within a meter of the ravinement surface, that surface was used as the lower boundary for those shoals, unless vibracore samples indicated otherwise." (Conkwright and Williams, 1996). REFS: Conkwright, R.D. and R.A.Gast. 1994a. Potential Offshore Sand Resources in Southern Maryland Shoal Fields. Coastal and Estuarine Geology File Report #95-4 Conkwright, R.D. and R.A.Gast. 1994b. Potential Offshore Sand Resources in Central Maryland Shoal Fields. Coastal and Estuarine Geology File Report #95-9 Conkwright, R.D. and C.P. Williams. 1996. Offshore Sand Resources in Central Maryland Shoal Fields. Coastal and Estuarine Geology File Report #96-3 Conkwright, R.D., Williams, C.P., and L.B. Christiansen. 2000. Offshore Sand Resources in Northern Maryland Shoal Fields. Coastal and Estuarine Geology File Report No. 00-2 Wells, D.V. 1994. Non-Energy Resources and Shallow Geological Framework of the Inner Continental Margin Off Ocean City, Maryland. Coastal and Estuarine Geology Open File Report #16USACE. 2008. Atlantic Coast of Maryland Shoreline Protection Project Final supplemental Environmental Impact Statement General Reevaluation Study: Borrow Sources for 2010-2044
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: QuesterTangent’s SWATHVIEW seabed classification software was used to post-process the 410 kHz side scan sonar signal. This software analyzes the side scan sonar backscatter signal to produce a classification map based on the acoustical reflectivity characteristics of bottom sediments. Employing proprietary algorithms SWATHVIEW uses multivariate analysis to find patterns in the side scan acoustic backscatter signal which reflect bottom textural parameters. Cluster analysis is used to group together regions of similar acoustic backscatter characteristics, or classes. Once the acoustic classes were determined, they were correlated with bottom samples and imagery. Bottom grab samples were obtained using a Van Veen sampler with a 4-inch depth capacity. Sampling sites were chosen based on the side scan data. We took samples on acoustically distinct bottom types to confirm our estimates of those types. The seabed classification data were layered over the side scan mosaics and bathymetry. These data sets were used to correlate side scan reflectivity with acoustic seabed classes and detect any influences that abrupt changes in seafloor slope may have on the acoustic data. Steep slopes tend to scatter the acoustic signals and produce anomalous data. REFS: Conkwright, R.D., Van Ryswick, S, Sylvia, E.R. 2014. Seafloor Survey of Nearshore Ocean City Maryland. Maryland Geological Survey.
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: QuesterTangent’s SWATHVIEW seabed classification software to post-process the 410 kHz side scan sonar signal. This software analyzes the side scan sonar backscatter signal to produce a classification map based on the acoustical reflectivity characteristics of bottom sediments. Employing proprietary algorithms SWATHVIEW uses multivariate analysis to find patterns in the side scan acoustic backscatter signal which reflect bottom textural parameters. Cluster analysis is used to group together regions of similar acoustic backscatter characteristics, or classes. Once the acoustic classes were determined, they were correlated with bottom samples and imagery. Bottom grab samples were obtained using a Van Veen sampler with a 4-inch depth capacity. Sampling sites were chosen based on the side scan data. We took samples on acoustically distinct bottom types to confirm our estimates of those types. The seabed classification data were layered over the side scan mosaics and bathymetry. These data sets were used to correlate side scan reflectivity with acoustic seabed classes and detect any influences that abrupt changes in seafloor slope may have on the acoustic data. Steep slopes tend to scatter the acoustic signals and produce anomalous data. REFS: Conkwright, R.D., Van Ryswick, S, Sylvia, E.R. 2014. Seafloor Survey of Nearshore Ocean City Maryland. Maryland Geological Survey.
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: Bottom classification based on ArcGIS 10.2 maximum likelihood raster classification, converted from raster to polygon. Data collected using QTC (Quester Tangent Corporation) bottom classification technology which collects and analyzes acoustic returns, and provides a framework for classifying the seabed into different regions based on their acoustic characteristics. Data is then post processed using QTC IMPACT software. These data were collected and processed in 2004. Equipment: Knudsen 320BP Dual Frequency Echosounder ( 28kHz/200kHz) Quester Tangent QTC View Seabed Classification System Quester Tangent QTC Impact Post-Processing
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: The field surveys were conducted for NOAA by SAIC on board M/V Atlantic Surveyor. Full reports and associated files are available for download at https://data.noaa.gov/dataset. Sheet H11649 was surveyed from August 17, 2007 to November 18, 2007. Sheet H11650 was surveyed from September 29, 2007 to November 18, 2007. Sheet H11872 was surveyed from July 16, 2008 to December 19, 2008. Sheet H11873 was surveyed from October 13, 2008 to December 18, 2008. Bottom class polygons with CMECS classifications based on ARC GIS 10.2 maximum likelihood raster classification performed on compiled side scan sonar mosaic raster. Side scan data collected by SAIC and provided by NOAA.
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: USACE, Maryland Geological Survey (MGS), Minerals Management Service (MMS), and academic scientists have studied the seafloor and shoals of the Maryland offshore study area in order to determine their potential use as a source of sand for beach nourishment. Studies conducted by MGS of Fenwick, Weaver, and Isle of Wight Shoals show four general patterns of substrate conditions: 1) Shoal crest - generally is restricted to the undisturbed shoal crest at depths less than 35 it (11.2 m) and, has no discernable bedforms; Shoal crests consist of sand with almost no shell material; Coarser gravels are concentrated in areas of greatest wave and current energies, such as along the shoal crest. 2) Flank- bottom class associated With the shoal crest; primarily found along the shoal flanks between -35 ft and -40 ft, representing transitional bottom, from shoal crest to intershoal bottom type; sand, the texture of which may or may not be significantly different than that of the shoal crest; occasional ripples; sand with some shell and other biogenic materials. 3) Intershoal-associated with the deeper sea bottom (> 40 feet), both disturbed (dredged) and undisturbed intershoal areas or troughs; sandy bottom dominated by small ripples (< 0.40 meter widths); sand with richer but not abundant benthos. 4) Patch — occurring in the deeper sea bottom (> 40 feet) in trough or intershoal areas; large patches, ~l00 it in diameter, associated with rippled bottom within the dredged area; interpreted to be soft, finer-grained sediment based on low backscatter intensity return; Patch-mat regions occur between shoals that have muddy substrates, abundant patches/mats of worm tube colonies, and shell beds. Refs: Army Corps of Engineers: Baltimore District, 2007 “Atlantic Coast of Maryland Shoreline Protection Project General Reevaluation Study: Borrow Sources for 2010 – 2044” MMS, BOEM, VIMS, 2000 “Environmental Survey of Potential Sand Resource Sites Offshore Delaware and Maryland”
Description: Ravinement features detected by observing basal reflectors in seismic records. Units are in meters. Data were collected jointly with the Delaware Geological Survey during August 1992: First year of the Offshore Sand Resources Study cooperative agreement between the Maryland Geological Survey and the Delaware Geological Survey. R/V Discovery, Datasonics Model SBT-220 Sub-Bottom Profiler operated at frequencies of 3.5 and 200 kHz REFS: Conkwright, R.D. and R.A. Gast. 1994. Potential Offshore Sand Resources in Northern Maryland Shoal Fields. Coastal and Estuarine Geology File Report #94-8 Toscono, M.A., Kerhin, R.T., York, L.L., Cronin, T.M., and S.J. Williams. Quaternary Stratigraphy of the Inner Continental Shelf of Maryland. Maryland Geological Survey Report Of Investigations no. 50
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: Ravinement features detected by observing basal reflectors in seismic records. Units are in meters. Data were collected jointly with the Delaware Geological Survey during August 1993. R/V Discovery, Datasonics Model SBT-220 Sub-Bottom Profiler operated at frequencies of 3.5 and 200 kHz REFS: Conkwright, R.D., and R.A. Gast. 1994. Potential Offshore Sand Resources in Central Maryland Shoal Fields. Coastal and Estuarine Geology File Report #94-9 Toscono, M.A., Kerhin, R.T., York, L.L., Cronin, T.M., and S.J. Williams. Quaternary Stratigraphy of the Inner Continental Shelf of Maryland. Maryland Geological Survey Report Of Investigations no. 50
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: Ravinement features detected by observing basal reflectors in seismic records. Units are in meters. Data were collected jointly with the Delaware Geological Survey during August 1994. R/V Discovery, Datasonics Model SBT-220 Sub-Bottom Profiler operated at frequencies of 3.5 and 200 kHz REFS: Conkwright, R.D., and R.A. Gast. 1995. Potential Offshore Sand Resources in Southern Maryland Shoal Fields. Coastal and Estuarine Geology File Report #95-4 Toscono, M.A., Kerhin, R.T., York, L.L., Cronin, T.M., and S.J. Williams. Quaternary Stratigraphy of the Inner Continental Shelf of Maryland. Maryland Geological Survey Report Of Investigations no. 50
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Description: This includes seismic and side scan tracklines from 1985-2012. Research and processing method vary throughout the years: Seismic Tracks 1985 - Tracklines from seismic reflection profiles - Datasonics 3.5 kHz Ore Geopulse 280j. This work was associated with cooperative agreement 14-12-001-30316 between Maryland Geological Survey and the Bureau of Economic Geology University of Texas at Austin as agent for Branch of Geologic and Geophysical Studies Minerals Management Survice Reston, VA (Brooks, 1988). REFS: Brooks, J.R. 1988. Sieve Analyses and Heavy Mineral Concentrations of the Sand Portions of Cores Taken from the Inner Continental Shelf of Maryland. Maryland Geological Survey, Baltimore MD. Seismic Tracks 1987 - Tracklines from seismic reflection profiles - Datasonics 3.5 kHz Ore Geopulse 280j. REFS: Toscano, M.A., Kerhin, R.T., York, L.L., Cronin, T.M., and S.J. Williams. 1989. Quaternary Stratigraphy of the Inner Continental Shelf of Maryland. Report of Investigations #50, Maryland Geological Survey. Seismic Tracks 1992 - Datasonics acoustic profiling system 3.5 kHz. Processed using Calcomp 9800, large format digitizer to enter the seismic data into Autodesk’s Map 2000. REFS: Conkwright, R.D., and R.A. Gast. Offshore Sand Resources in Northern Maryland Shoal Fields. Coastal and Estuarine Geology File Report #94-8 Seismic Tracks 1993 - Data was collected during an August 1993 survey, Datasonics acoustic profiling system 3.5 kHz. the Calcomp 9800 large format digitizer was used to enter seismic data into AutoCAD 12 DOS. Civil/Survey (Softdesk) within AutoCAD was used to generate the surface models. This method used TINS (triangular irregular networks), the most commonly employed method in 1993. The data is developed and generated under the Maryland Geological Survey/Delaward Geological Survey Cooperative agreement, a grant funded by the Minerals Management Service. REFS: Conkwright R.D., and R.A. Gast. 1994, "Potential Offshore Sand Resources in Central Maryland Shoal Fields" Coastal and Estuarine Geology File Report #94-9 Seismic Tracks 1994 - Datasonics acoustic profiling system 3.5 kHz. the Calcomp 9800 large format digitizer was used to enter seismic data into AutoCAD 12 DOS. Civil/Survey (Softdesk) within AutoCAD was used to generate the surface models. This method used TINS (triangular irregular networks), the most commonly employed method in 1994. The data is developed and generated under the Maryland Geological Survey/Delaward Geological Survey Cooperative agreement, a grant funded by the Minerals Management Service. Data collected onboard the R.V. Discovery in August 1994. REFS: Conkwright R., and Gast R., October 1994, "Potential Offshore Sand Resources in Central Maryland Shoal Fields" Seismic Tracks 1995 - Datasonics acoustic profiling sisyem 3.5 kHz. the Calcomp 9800 large format digitizer was used to enter seismic data into AutoCAD 12 DOS. Civil/Survey (Softdesk) within AutoCAD was used to generate the surface models. This method used TINS (triangular irregular networks), the most commonly employed method in 1995. The data is developed and generated under the Maryland Geological Survey/Delaward Geological Survey Cooperative agreement, a grant funded by the Minerals Management Service. (exact dates and references for this set of tracklines cannot be found. It is known that the above listed technology was being used at the time). These are the tracklines for Charlene Shoal 1995. Seismic Tracks 2006 - Seismic data were collected during the sidescan sonar surveys the following locations: Fenwick Shoal - 06/08/2006; Shoal A - 06/09/2006 & 06/12/2006; Shoal E - 06/13/2006; Great Gull Bank (Dredge Area) - 06/14/2006; Shoal R - 06/21/2006; as well as Shoals B, C, and D. Equipment: Edgetech 272 analog sidescan towfish, Furuno color LCD sounder FCV-1100L (200 khz), Knudsen 320 B/P echosounder (28 khz), Geometrics G-881 Cesium Marine Magnetometer, Edgetech SB-0512i Sub-bottom (for some of the 2006 fieldwork) R/V: Kerhin Side Scan Tracks 1993 - Tracklines for two side scan surveys in 1993 between 8/5/93 - 8/11/93 on Fenwick Shoal and in Shoal Field 2. Fenwick shoal survey was side scan only, and Shoal Field 2 survey collected seismic and side scan data. Fenwick Shoal - 08/05/1993, (200m range, 100-150ft spacing) Equipment: Datasonics Model SBT - 220 Sub Bottom Profiler operated at frequencies of 3.5 and 200 kHz, EPC Seismic Data Printer Model 3200S, EG&G Model 260 Side Scan SONAR unit (recorder and towfish). R/V: MGS Discovery. Data collected by Lucas Strout and Stephen Bilicki. REF: Bilicki, S.R. and L.A. Strout. 1993. Potential Submerged Cultural Resources Survey. Maryland-Delaware Cooperative Offshore Sand Resource Investigations. Side Scan Tracks 2004 - The following list represents location, equipment settings and associated geoTIFFs. Shoal B - 09/12/2004 (100m range, 100m spacing) associated GeoTIFF: ShoalB_091204; Great Gull Bank - 09/08/2004 - 09/12/2004, (100m range, 100m spacing) associated GeoTIFF: GreatGullBank_090804_091204; Borrow Area 2 - 09/13/2004, (50m range, 50m spacing) associated GeoTIFF: BorrowArea2_091304; Borrow Area 3 - 09/13/2004, (75m range, 100m spacing) associated GeoTIFF: BorrowArea3_091304; Equipment: Edgetech DF1000 dual-frequency sidescan towfish, Knudsen chirp seismic system. R/V: KerhinSideScanTracks2005- The following list represents location, equipment settings and associated geoTIFFs. Great Gull Bank - 05/17/2005, (100m range, 150m spacing) Associated GeoTIFF: GreatGull_051705; Borrow Area 3 - 06/14/2005, (100m range, 150m spacing) Associated GeoTIFF: BorrowArea3_061405; Weaver Shoal - 06/14/2005, (100m range, 150m spacing) Associated GeoTIFF: WeaverShoal_061405; Isle of Wight Shoal - 06/15/2005, (100m range, 150m spacing) Associated GeoTIFF: IsleOfWight_061505; Shoal C - 06/16/2005, (100m range, 150m spacing) Associated GeoTIFF: ShoalC_061605; Fenwick Shoal - 06/17/2005 and 06/21/2005 (100m range, 150m spacing) Associated GeoTIFF: Fenwick_062105; Shoal B - 06/22/2005 (100m range, 150m spacing) Associated GeoTIFF: ShoalB_062205; Equipment: Edgetech DF1000 dual-frequency sidescan towfish, Knudsen chirp seismic system; R/V: Kerhin Side Scan Tracks 2006 - The following list represents location, equipment settings and associated geoTIFFs. Fenwick Shoal - 06/08/2006, (100m range, 150m spacing) Associated GeoTIFF: Fenwick_060806; Shoal A - 06/09/2006 & 06/12/2006, (100m range, 150m spacing) Associated GeoTIFF: ShoalA_060906_061206; Shoal E - 06/13/2006, (100m range, 150m spacing) Associated GeoTIFF: ShoalE_061306; Great Gull Bank (Dredge Area) - 06/14/2006, (75m range, 100m spacing) Associated GeoTIFF: Great Gull Dredge_061406; Shoal R - 06/21/2006, (100m range, 150m spacing) Associated GeoTIFF: ShoalR_062106; Equipment: Edgetech 272 analog sidescan towfish, Furuno color LCD sounder FCV-1100L (200 khz), Knudsen 320 B/P echosounder (28 khz), Geometrics G-881 Cesium Marine Magnetometer, Edgetech SB-0512i Sub-bottom (for some of the 2006 fieldwork) R/V: Kerhin Side Scan Track 2008 - The following list represents location, equipment settings and associated geoTIFFs. Great Gull Bank - 06/09/08 - 06/10/08 (75m range, 100m spacing) Associated GeoTIFF: GreatGullBank_060908_061008; Charlene Shoal - 06/10/08, (75m range, 100m spacing) Associated GeoTIFF: CharleneShoal_061008; Jack Spot Reef - 06/12/08 (75m range, 100m spacing) Associated GeoTIFF: JackSpotARTREEF_061208; Jack Spot Shoal - 06/12/08 (100m range) Associated GeoTIFF: JackSpotSHOAL_061208; Shoals R and S - 06/16/08 (75m range, 100m spacing) Assocated GeoTIFF: ShoalsRandS_061608; Shoals R and S North - 06/17/08 - 06/19/06 (75m range, 100m spacing) Associated GeoTIFF: ShoalsRandSNORTH_061708_061908; Fenwick Shoal - 06/19/08, (75m range, 100m spacing) Associated GeoTIFF: FenwickShoalARTREEF_061908; OC Research Reef - 06/19/08 (75m range, 100m spacing) Associated GeoTIFF: OCResearchReef_061908; Bass Grounds - 06/25/08, (100m range, 150m spacing) Associated GeoTIFF: BassGroundsARTREEF_062508; Great Eastern - 06/25/08, (100m range, 150m spacing) Associated GeoTIFF: GreatEasternARTREEF_062508; Equipment: Edgetech 4200 FS sidescan towfish, Furuno color LCD sounder FCV-1100L (200 khz), Knudsen 320 B/P echosounder (28 khz), Geometrics G-881 Cesium Marine Magnetometer, R/V: Kerhin-0512. Side Scan Tracks 2009 - The following list represents location, equipment settings and associated geoTIFFs. African Queen - 09/22/2009 (75m range, 100m spacing) associated GeoTIFF: AfricanQueen_092209; Jack Spot Subway - 09/22/2009 (75m range, 100m spacing) associated GeoTIFF: JackSpotSubwayCars_092209; Bass Grounds NE - 09/23/2009, (75m range, 100m spacing) associated GeoTIFF: BassGroundsNE_092309; Isle Of Wight - 09/23/2009 (75m range, 100m spacing) associated GeoTIFF: IsleofWight_092309; Research Reef - 09/23/2009 (75m range, 100m spacing) associated GeoTIFF: ResearchReef_092309; Bass Grounds South - 09/24/2009 and 10/01/2009, (75m range, 100m spacing) associated GeoTIFF: BassGroundsSouth_092409_100109; Charlene Shoal - 09/30/2009, (75m range, 100m spacing) associated GeoTIFF: Charlene_093009; Kelly's Reef - 09/30/2009, (75m range, 100m spacing) associated GeoTIFF: KellysReef_093009; Purnell's Reef - 09/30/2009, (75m range, 100m spacing) associated GeoTIFF: PurnellsReef_093009; Jack Spot Hole - 10/01/2009, (100m range, 150m spacing) associated GeoTIFF: JackSpotHole_100109; Jack Spot Ledge - 10/01/2009, (100m range, 150m spacing) associated GeoTIFF: JackSpotLedge_100109; Equipment: Edgetech 4200 FS sidescan towfish, Furuno color LCD FCV 1100L sounder (200 kHz), Edgetech 3100P subbottom (4-24 kHz) (for some of the 2009 fieldwork); R/V: Kerhin Side Scan Tracks 2011 - CZM Block 1 - 06/13/2011 - 06/14/2011, (75m range, 125m spacing) Associated GeoTIFF: CZMOC_410kHz_2011; Equipment: Edgetech 4200 FS sidescan towfish; R/V: Kerhin Side Scan Tracks 2012 - CZM Block 2 - 05/11/2012, (75m range, 125m spacing) Associated GeoTIFF: CZMOC_410kHz_2012; Equipment: Edgetech 4200 FS sidescan towfish; R/V: Kerhin
Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.