Lawrence J. Poppe 2003 1.0 vector digital data Open-File Report 03-001 Woods Hole Coastal and Marine Science Center, Woods Hole, MA U. S. Geological Survey, Coastal and Marine Geology Program https://doi.org/10.3133/ofr031 http://pubs.usgs.gov/of/2003/of03-001/data/seddata/armstrong74/armstrong74.zip http://pubs.usgs.gov/of/2003/of03-001/htmldocs/data.htm L.J. Poppe V.F. Paskevich S.J. Williams M.E. Hastings J.T. Kelley D.F. Belknap L.G. Ward D.M. FitzGerald P.F. Larsen 2003 1.0 Open-File Report 03-001 Reston, VA U. S. Geological Survey 1 CD-ROM http://pubs.usgs.gov/of/2003/of03-001 The sediment data presented in this data layer were from a geochemical study sited in Great Bay Estuary, New Hampshire. The analog data were originally converted into digital form for inclusion in a Gulf of Maine Contaminated Sediments Database. The purpose of this data layer is to release a digital version of the data published in Armstrong (1974). 1974 publication date Complete None planned -70.932240 -70.800432 43.188736 43.048036 USGS Metadata Identifier USGS:95888739-9933-4c6c-ada4-6e958e1b418e None U.S. Geological Survey Woods Hole Science Center USGS UNH University of New Hampshire sediments texture sand silt clay Open-File Report 03-001 Coastal and Marine Geology Program CMGP sediment classification surficial classification point shapefile points Geographic Information System GIS WHSC ISO 19115 Topic Category oceans location geoscientificInformation USGS Thesaurus grain-size analysis navigational data geospatial datasets sea-floor characteristics marine geology None U.S. East Coast New England New Hampshire Great Bay Estuary None Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Lawrence J. Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2314 (508) 457-2310 lpoppe@usgs.gov http://pubs.usgs.gov/of/2003/of03-001/data/seddata/armstrong74/armstrong74-thumb.gif Thumnail image showing extent and distribution of data layer coverage. GIF http://pubs.usgs.gov/of/2003/of03-001/data/seddata/armstrong74/armstrong74.gif Image map showing extent and distribution of data layer coverage. GIF Please view the cross reference information for the original data set credit to Armstrong (1974). Steve Jones (UNH) for entering the data from the source report, and Larry Poppe for creating the ArcView shapefile. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350 P. Armstrong 1974 1.0 Master's Thesis 85 p. Durham, NH University of New Hampshire All attributes were checked by the compilers in a consistent manner. No additional checks for topological consistency were performed on the data Identifiers, navigation, and grain-size data are provided for 75 stations. Navigational accuracy is unknown. P. Armstrong 1974 1.0 Master's Thesis 85 p. Durham, NH University of New Hampshire paper 1974 publication date Information unavailable from original metadata. Information unavailable from original metadata. The source information was manually entered into digital form and was imported from an ASCII text file to an ArcView table. The table was later converted to an event theme and saved as the final shapefile. armstrong74.txt 20021119 armstrong74.shp armstrong74.dbf armstrong74.shx Lawrence J. Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2314 (508) 457-2310 lpoppe@usgs.gov Edits to the metadata were made to fix any errors that MP v 2.9.30 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. 20151130 U.S. Geological Survey VeeAnn A. Cross Marine Geologist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov USGS Thesaurus keywords added to the keyword section. 20180720 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Crossref DOI link was added as the first link in the metadata. 20191118 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Added keywords section with USGS persistent identifier as theme keyword. 20200908 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Vector Entity point 81 0.00001 0.00001 Decimal degrees North American Datum of 1927 Clarke 1866 6378206.400000 294.978698 armstrong74.dbf Shapefile Attribute Table ESRI FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. LOCAL_ID Numeric used to identify samples Scientist 1 81 stations 1 REFERENCE Author and year of publication Compiler ARMSTRONG1974 Information unavailable from original metadata. Information unavailable from original metadata. LATITUDE Latitude coordinate of sample location Scientist 43.04833 43.18958 decimal degrees 0.00001 LONGITUDE Longitude coordinate of sample location Scientist -70.92083 -70.81083 decimal degrees 0.00001 SAND Percentage of sand Scientist 1.2 84.3 percent 0.1 SILT Percentage of silt in sample Scientist 0.4 35.4 percent 0.1 CLAY Percentage of clay in sample Scientist 1.3 39.7 percent 0.1 SHEPARD_CL Sediment classification based on a scheme devised by Shepard (1954) Compiler Verbal descriptions of the sediment Lawrence J. Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2314 (508) 457-2310 lpoppe@usgs.gov Downloadable Data Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. SHP 3.2 ESRI point shapefile Five files (armstrong74.shp, armstrong74.dbf, armstrong74.shx, armstrong74.sbx, armstrong74.sbn) comprising the ArcView point shapefile components, 'prj' and 'avl' files, metadata text file and browse graphic. zip 0.002 http://pubs.usgs.gov/of/2003/of03-001/data/seddata/armstrong74/armstrong74.zip Data may be downloaded via the World Wide Web (WWW). CD-ROM 650 Mbytes ISO 9600 The user must have a computer system with a CD-ROM available. To browse the information contained on this CD-ROM, the user must have a current WWW browser available. The user must also have software installed on their computer to unzip the archived file. None These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com. 2002 20211116 Lawrence J. Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2314 (508) 457-2310 whsc_data_contact@usgs.gov The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid. FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time None None