47986 va_yr02_spi-meta Data Set Published / External 37225 Benthic Project Completed 2005-08-31 This data set represents the sediment profile imaging data from 2002.In Fall/Winter 2002, researchers from the Virginia Institute of Marine Science (VIMS) and the NOAA Office for Coastal Management conducted a project to map benthic habitats by Catlett and Goodwin Islands on the York River, Chesapeake Bay, Virginia. Sediment grab samples were collected at 56 stations and sediment profile images were collected at 200 stations. Sampling areas were also surveyed using side scan sonar and interferometric swath bathymetry sensors. Scientists from the Virginia Institute of Marine Sciences returned to sample a subset of the 2002 sediment grab data in 2003 and then again in 2004. A subset of SPI stations (79) were revisited in 2004. Original contact information: Contact Org: NOAA Office for Coastal Management Phone: 843-740-1202 Email: coastal.info@noaa.gov VIMS and the NOAA Office for Coastal Management are using the acoustic, grab, and SPI information (collected in 2002, 2003, and 2004) to characterize benthic habitats by Catlett and Goodwin Islands on the York River. Sediment profile images (SPI) of the sediment-water interface were collected using a sediment profile camera at pre-determined locations at both sites. 10141 Nilsson, H.C. and R. Rosenberg. 1997. "Benthic Habitat Quality Assessment of an Oxygen Stressed Fjord by Surface and Sediment Profile Images." Journal of Marine Systems. Volume 11. Pages 249 to 264. Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > COASTAL Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > ESTUARY Theme ISO 19115 Topic Category biota Theme ISO 19115 Topic Category environment Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > VIRGINIA Theme Environmental Monitoring Theme GIS Theme OCM Benthic Habitat Mapping Theme SPI Theme benthic data Theme geographic information systems Theme sediment profile imaging Temporal 2002 Spatial Catlett Island Spatial Chesapeake Bay Spatial Goodwin Island Spatial Virginia Spatial York River Office for Coastal Management Charleston SC Data Set None Planned Map (digital) Values of 99.0 for SFC_RELIEF, RPD, ADJ_RPD, BHQ, and ADJ_BHQ fields represent unknown values. NOAA Office for Coastal Management While every effort has been made to ensure that these data are accurate and reliable within limits of the state of the art, NOAA will not assume any liability for damages caused by any inaccuracies in these data, or failure in their use. 49390 Ches_2002SPI.dbf Published / External Completed Database file | Description Source: none Converted from FGDC using 'fgdc_to_inport_xml_entity.pl' script. 1 FID Unknown No No Active Internal feature number. | Description Source: ESRI Sequential unique whole numbers that are automatically generated. 2 Shape Unknown No No Active Feature geometry. | Description Source: ESRI Coordinates defining the features. 3 DATE_ VARCHAR No No Active Date sampled. | Description Source: NOAA Office for Coastal Management 20021202: Date sampled | 4 REGION VARCHAR No No Active Name of region | Description Source: NOAA Office for Coastal Management Catlett: Catlett Island | Goodwin: Goodwin Island | 5 STATION Unknown No No Active Station identification number | Description Source: NOAA Office for Coastal Management Letter and number combination to represent sample sites. 6 LATITUDE NUMBER No No Active Latitude in decimal degrees | Description Source: NOAA Office for Coastal Management Decimal degrees 37.20267 - 37.304 7 LONGITUDE NUMBER No No Active Longitude in decimal degrees | Description Source: NOAA Office for Coastal Management Decimal degrees -76.58 - -76.36667 8 IMAGE Unknown No No Active Image at station | Description Source: NOAA Office for Coastal Management Image number 9 PENETRATIO NUMBER No No Active Average prism penetration depth in cm | Description Source: NOAA Office for Coastal Management 0.5 - 19.9 10 SFC_RELIEF NUMBER No No Active Average surface relief, change in sediment depth (in cm) across the 15 cm width of the prism face plate | Description Source: NOAA Office for Coastal Management 0.1 - 7.1 11 RPD NUMBER No No Active Average apparent redox potential discontinuity (RPD) depth in cm | Description Source: NOAA Office for Coastal Management 0.4 - greater than 10.6 12 ADJ_RPD NUMBER No No Active Adjusted apparent redox potential discontinuity (RPD) depth in cm (removed greater than symbols from values) | Description Source: NOAA Office for Coastal Management 0.4 - 10.6 13 GRAIN_SIZE Unknown No No Active Abbreviation of modal sediment grain size estimate (Folk) | Description Source: NOAA Office for Coastal Management Grain size code 14 MAX_GRSZ Unknown No No Active Maximum grain size | Description Source: NOAA Office for Coastal Management Grain size code 15 BEDFORMS VARCHAR No No Active Presence of small sand ripples (bedforms) | Description Source: NOAA Office for Coastal Management 0: absence | 1: presence | 16 FLOC_LAYER VARCHAR No No Active Fluid mud layer above the sediment | Description Source: NOAA Office for Coastal Management 0: absence | 1: presence | 17 ALGAE VARCHAR No No Active Presence of diatom mats or macro algae | Description Source: NOAA Office for Coastal Management 0: absence | 1: presence | 18 HYD_BRY VARCHAR No No Active Presence of Hydroids and Bryozoans | Description Source: NOAA Office for Coastal Management 0: absence | 1: presence | 19 EPIFAUNA Unknown No No Active Epifaunal organisms on sediment surface | Description Source: NOAA Office for Coastal Management Text description of organisms if applicable 20 PIT_MOUND VARCHAR No No Active These are features that appear to be biogenic, usually related to feeding activity of fauna (fish, crab, or infauna). | Description Source: NOAA Office for Coastal Management 0: absence | 1: presence | 21 PELLETS VARCHAR No No Active Fecal pellets on the sediment surface | Description Source: NOAA Office for Coastal Management 0: absence | 1: presence | 22 TUBES_LARG NUMBER No No Active Number of worm tubes in image greater than 2 mm diameter | Description Source: NOAA Office for Coastal Management 0 - 15 23 TUBES_SMAL NUMBER No No Active Number of worm tubes in image smaller than 2 mm diameter | Description Source: NOAA Office for Coastal Management 0 - 34 24 INFAUNA NUMBER No No Active Number of infaunal worms | Description Source: NOAA Office for Coastal Management 0 - greater than 25 25 ADJ_INFAUNA NUMBER No No Active Adjusted infauna (removed greater than symbols from values) | Description Source: NOAA Office for Coastal Management 0 - 25 26 MD_INFAUNA NUMBER No No Active Maximum depth that infaunal organisms were observed | Description Source: NOAA Office for Coastal Management 0 - 14.5 27 BURROWS NUMBER No No Active Number of infaunal burrows | Description Source: NOAA Office for Coastal Management 0 - 9 28 OXIC_VOIDS NUMBER No No Active Number of water-filled inclusions in the sediment that appear oxygenated (oxic) | Description Source: NOAA Office for Coastal Management 0 - 7 29 MD_OXIC_VO NUMBER No No Active Maximum depth that oxic voids (water-filled inclusions in the sediment that appear oxygenated) were observed | Description Source: NOAA Office for Coastal Management 0 - 17.6 30 ANOX_VOIDS NUMBER No No Active Number of water-filled inclusions in the sediment that appear anaerobic (anoxic) | Description Source: NOAA Office for Coastal Management 0 - 9 31 MD_ANOX_VO NUMBER No No Active Maximum depth that anaeorbic voids (water-filled includes in the sediment that appear anaerobic) were observed | Description Source: NOAA Office for Coastal Management 0 - 18.4 32 GAS_VOIDS NUMBER No No Active Number of methane gas-filled inclusions in the sediment | Description Source: NOAA Office for Coastal Management 0 - 0 33 COMMENTS Unknown No No Active Special notes on the images made during analysis | Description Source: NOAA Office for Coastal Management text description if applicable 34 BHQ NUMBER No No Active Benthic Habitat Quality Index | Description Source: Nilsson and Rosenberg 1997 modified by R.J. Diaz 0 - 11 35 ADJ_BHQ NUMBER No No Active Adjusted Benthic Habitat Quality Index (removed greater than symbols from values) | Description Source: Nilsson and Rosenberg 1997 modified by R.J. Diaz 0 - 11 Data Steward 2005-08-31 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Distributor 2005-08-31 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Metadata Contact 2005-08-31 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Point of Contact 2005-08-31 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition -76.58 -76.3667 37.304 37.2027 Discrete 2002-12-02 Yes Yes 199 Unclassified None These data should be used for resource mapping and comparison purposes only. While every effort has been made to ensure that these data are accurate and reliable within limits of the state of the art, NOAA will not assume any liability for damages caused by any inaccuracies in these data, or failure in their use. ftp://ftp.coast.noaa.gov/pub/benthic/Sediment_Profile_Imaging_Data/VA_YorkRiver_spi.zip Bulk Download FTP download of data files. https://coast.noaa.gov/ NOAA's Office for Coastal Management (OCM) website Online Resource Information on the NOAA Office for Coastal Management (OCM) 2017-03-30 Date that the source FGDC record was last modified. 2017-11-14 Converted from FGDC Content Standard for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. 2018-02-08 Partial upload of Positional Accuracy fields only. 2018-04-11 Partial upload to move data access FTP links to Distribution Info and remove broken URLs. Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 8.3.0.800 The attribute accuracy was verified by checking the compiled SPI database against the actual photos for each station. Since two photos were taken at each station, attributes from both images were noted in the database, and one image was digitized and analyzed using image analysis software. The results of this automated analysis were also used to check the accuracy of the dataset. When large disagreement occurred between images from a single station, all attributes were recorded and the image with the largest visible area was digitized. Stations were located in the field using a differential Global Positioning System (GPS), and station coordinates, date and time of day were recorded upon arrival at each station. Not relevant to the data set. All SPI data were included in this data layer. All data are believed to be logically consistent. 1 SPI images were collected on December 12, 2002 at a total of 200 stations. A Hulcher model sediment profile camera was deployed with a modified frame that was lightened for use from a small vessel. Fujichrome 100 ASA professional color slide film was used. Tests were done frequently onboard in order to ensure camera function and mark stations.Laboratory Methods: All sediment images were analyzed visually by projecting the images and recording all features seen into a preformatted standardized spreadsheet file. Images were then digitized using a Nikon LS2000 scanner and analyzed using the Adobe PhotoShop and NTIS Image programs. Steps in the computer analysis of each image were standardized and followed the basic procedures in Viles and Diaz (1991). Data from each image were sequentially saved to a spread sheet file for later analysis. Details of how these data were obtained can be found in Diaz and Schaffner (1988) and Rhoads and Germano (1986). References: 1) Viles, C. and R.J. Diaz. 1991. Bencore, an image analysis system for measuring sediment profile camera slides. School of Marine Science, Virginia Institute of Marine Science, College of William and Mary, Gloucester Pt. VA. 13 pp. 2) Diaz, R.J. and L.C. Schaffner. 1988. Comparison of sediment landscapes in the Chesapeake Bay as seen by surface and profile imaging. p. 222 240. In: M. P. Lynch and E. C. Krome, eds. Understanding the estuary; Advances in Chesapeake Bay research. Chesapeake Res. Consort. Pub. 129, CBP/TRS 24/88. 3) Rhoads, D.C. and J.D. Germano. 1986. Interpreting long-term changes in benthic community structure: a new protocol. Hydrobiologia 142:291-308. 2002-01-01T00:00:00 2 Data from field samples was entered into an Access database. A query was developed to review SPI data from all SPI stations. A shapefile was created using ESRI ArcMap 8.3. 2005-07-19T00:00:00 49390 Entity gov.noaa.nmfs.inport:47986 Anne Ball 2017-11-14T12:58:03 SysAdmin InPortAdmin 2023-05-30T18:09:29 2018-04-11 Office for Coastal Management OCM 1002 Public No No 2018-04-11 1 Year 2019-04-11