JOHNSTON94: Portsmouth Naval Yard Sediment Data

Metadata also available as: OUTLINE - TEXT

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

Title: JOHNSTON94: Portsmouth Naval Yard Sediment Data

Abstract:

The sediment data presented in this data layer were from an ecological study sited near the Portsmouth Naval Shipyard, Kittery, Maine. The analog data were originally converted into digital form for inclusion in a Gulf of Maine Contaminated Sediments Database.

1. How should this data set be cited?

   Ward, Larry, and Poppe, Lawrence J. , 2003, JOHNSTON94: Portsmouth Naval Yard Sediment Data: U. S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Field Center, Woods Hole, MA.

   Online Links:

   • <http://pubs.usgs.gov/of/2003/of03-001/data/seddata/johnston94/johnston94.zip>
   • <http://pubs.usgs.gov/of/2003/of03-001/data/seddata/johnston94/johnston94.zip>

   This is part of the following larger work.

   Poppe, L.J., Paskevich, V.F., Williams, S.J., Hastings, M.E., Kelley, J.T., Belknap, D.F., Ward, L.G., FitzGerald, D.M., and Larsen, P.F., 2003, Surficial Sediment Data from the Gulf of Maine, Georges Bank, and vicinity: a GIS Compilation: Open-File Report 03-001, U. S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Field Center, Woods Hole, MA.

   Online Links:

   • <http://pubs.usgs.gov/of/2003/of03-001>
   • <http://pubs.usgs.gov/of/2003/of03-001>

   Other_Citation_Details:

   Data are released via CD-ROM media. This digital publication may also be available via the web at pubs.usgs.gov

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -70.764028

   East_Bounding_Coordinate: -70.640972

   North_Bounding_Coordinate: 43.134639

   South_Bounding_Coordinate: 43.068194

3. What does it look like?

   johnston94 (GIF)

   Image map showing extent and distribution of data layer coverage.

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 1994

   Currentness_Reference: publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: vector digital data

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (64)

   2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.
      

7. How does the data set describe geographic features?

   johnston94.dbf

   Shapefile Attribute Table (Source: ESRI)

   FID

   Internal feature number. (Source: ESRI)

   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI)

   Coordinates defining the features.

   LOCAL_ID

   Name used to identify samples (Source: Scientist)

   Sample identifiers

   REFERENCE

   Short reference (Source: Compilers)

   Value	Definition
   JOHNSTONETAL1994

   YEAR

   Year that the samples were collected (Source: Scientist)

   Range of values
   Minimum:	1992
   Maximum:	1992
   Units:	years
   Resolution:	1

   LATITUDE

   Latitude coordinate of sample location (Source: Scientist)

   Range of values
   Minimum:	43.068194
   Maximum:	43.134639
   Units:	decimal degrees
   Resolution:	0.000001

   LONGITUDE

   Longitude coordinate of sample location (Source: Scientist)

   Range of values
   Minimum:	-70.764028
   Maximum:	-70.640972
   Units:	decimal degrees
   Resolution:	0.000001

   DEPTH_INT

   Depth (cm) interval of sample within the sediments (Source: Scientist)

   Sample depth intervals

   GRAVEL

   Percentage of gravel (Source: Scientist)

   Range of values
   Minimum:	0
   Maximum:	15
   Units:	percent
   Resolution:	1

   SAND

   Percentage of sand in sample (Source: Scientist)

   Range of values
   Minimum:	4
   Maximum:	94
   Units:	percent
   Resolution:	1

   SILT

   Percentage of silt in sample (Source: Scientist)

   Range of values
   Minimum:	4
   Maximum:	60
   Units:	percent
   Resolution:	1

   CLAY

   Percentage of clay in sample (Source: Scientist)

   Range of values
   Minimum:	2
   Maximum:	47
   Units:	percent
   Resolution:	1

   FINES

   Percentage of fines (silt plus clay) in sample (Source: Scientist)

   Range of values
   Minimum:	6
   Maximum:	96
   Units:	percent
   Resolution:	1

   CLASSIFICA

   Lithologic classification of the sediments (Source: Scientist)

   Verbal textural descriptions

   SYSTEM

   Author and publication year of the system used to classify the sediments (Source: Scientist)

   Value	Definition
   FOLK1980

   MEDIAN

   Median of the size distribution (Source: Scientist)

   Range of values
   Minimum:	2.6
   Maximum:	7.6
   Units:	phi
   Resolution:	0.01

   MEAN

   Mean of the size distribution (Source: Scientist)

   Range of values
   Minimum:	2.43
   Maximum:	7.9
   Units:	phi
   Resolution:	0.01

   STDDEV

   Standard deviation of the size distribution (Source: Scientist)

   Range of values
   Minimum:	0.75
   Maximum:	4.26
   Units:	phi
   Resolution:	0.01

   SKEWNESS

   Skewness of the size distribution (Source: Scientist)

   Range of values
   Minimum:	-0.37
   Maximum:	0.73
   Resolution:	0.01

   KURTOSIS

   Kurtosis of the size distribution (Source: Scientist)

   Range of values
   Minimum:	0.57
   Maximum:	5.33
   Resolution:	0.01

   Q1_MM

   First quartile in mm (Source: Scientist)

   Range of values
   Minimum:	0.2
   Maximum:	22.6
   Units:	mm
   Resolution:	0.01

   Q2_MM

   Second quartile in mm (Source: Scientist)

   Range of values
   Minimum:	2.6
   Maximum:	7.6
   Units:	mm
   Resolution:	0.01

   Q3_MM

   Third quartile in mm (Source: Scientist)

   Range of values
   Minimum:	2.9
   Maximum:	10.5
   Units:	mm
   Resolution:	0.01

   CFP10

   Cumulative frequency of the 10 phi fraction (Source: Scientist)

   Range of values
   Minimum:	7.252
   Maximum:	98.459
   Units:	percent
   Resolution:	0.001

   CFP09

   Cumulative frequency of the 9 phi fraction (Source: Scientist)

   Range of values
   Minimum:	55.23
   Maximum:	98.036
   Units:	percent
   Resolution:	0.001

   CFP08

   Cumulative frequency of the 8 phi fraction (Source: Scientist)

   Range of values
   Minimum:	53.52
   Maximum:	97.599
   Units:	percent
   Resolution:	0.001

   CFP07

   Cumulative frequency of the 7 phi fraction (Source: Scientist)

   Range of values
   Minimum:	44.67
   Maximum:	97.194
   Units:	percent
   Resolution:	0.001

   CFP06

   Cumulative frequency of the 6 phi fraction (Source: Scientist)

   Range of values
   Minimum:	33.571
   Maximum:	96.599
   Units:	percent
   Resolution:	0.001

   CFP05

   Cumulative frequency of the 5 phi fraction (Source: Scientist)

   Range of values
   Minimum:	18.606
   Maximum:	95.836
   Units:	percent
   Resolution:	0.001

   CFP04

   Cumulative frequency of the 4 phi fraction (Source: Scientist)

   Range of values
   Minimum:	4.89
   Maximum:	94.105
   Units:	percent
   Resolution:	0.001

   CFP03

   Cumulative frequency of the 3 phi fraction (Source: Scientist)

   Range of values
   Minimum:	0.432
   Maximum:	87.733
   Units:	percent
   Resolution:	0.001

   CFP02

   Cumulative frequency of the 2 phi fraction (Source: Scientist)

   Range of values
   Minimum:	0.075
   Maximum:	43.794
   Units:	percent
   Resolution:	0.001

   CFP01

   Cumulative frequency of the 1 phi fraction (Source: Scientist)

   Range of values
   Minimum:	0.02
   Maximum:	32.575
   Units:	percent
   Resolution:	0.001

   CFP00

   Cumulative frequency of the 0 phi fraction (Source: Scientist)

   Range of values
   Minimum:	0
   Maximum:	23.668
   Units:	percent
   Resolution:	0.001

   CFPM1

   Cumulative frequency of the minus 1 phi fraction (Source: Scientist)

   Range of values
   Minimum:	0
   Maximum:	14.652
   Units:	percent
   Resolution:	0.001

   CFPM2

   Cumulative frequency of the minus 2 phi fraction (Source: Scientist)

   Range of values
   Minimum:	0
   Maximum:	6.951
   Units:	percent
   Resolution:	0.001

   CFPM3

   Cumulative frequency of the minus 3 phi fraction (Source: Scientist)

   Range of values
   Minimum:	0
   Maximum:	3.09
   Units:	percent
   Resolution:	0.001

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Larry Ward
   • Lawrence J. Poppe

2. Who also contributed to the data set?

   Please view the cross reference information for the original data set credit to Johnston (1994). Larry Ward (UNH) for entering the data from the source report, and Larry Poppe for creating the ArcView shapefile.

3. To whom should users address questions about the data?

   Lawrence J. Poppe
   U.S. Geological Survey
   Geologist
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   508-548-8700 x2314 (voice)
   508-457-2310 (FAX)
   lpoppe@usgs.gov
   

The purpose of this data layer is to release a digital version of the data published in Johnston (1994).

1. From what previous works were the data drawn?

   (source 1 of 1)

   Johnston, R.K., Munns, W.R., Short, F.T., and Walker, H.A., 1994, Estuarine Ecological Risk Assessment for Portsmouth Naval Yard, Kittery, Maine: U.S Navy Technical Report Phase 1: Problem Formulation, TR 16276, RDT&E Division, Naval Command, Control, and Ocean Surveillence Center.

   Type_of_Source_Media: paper

2. How were the data generated, processed, and modified?

   Date: 04-Nov-2002 (process 1 of 1)

   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.

   Person who carried out this activity:
   

   Lawrence J. Poppe
   U.S. Geological Survey
   Geologist
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   508-548-8700 x2314 (voice)
   508-457-2310 (FAX)
   lpoppe@usgs.gov
   

   Data sources used in this process:

   • johnston94.txt

   Data sources produced in this process:

   • johnston94.shp
   • johnston94.dbf
   • johnton94.shx

1. How well have the observations been checked?

   All attributes were checked by the compilers in a consistent manner.

2. How accurate are the geographic locations?

   Navigation was by differential GPS; positional accuracy approximately 10 m.

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   Identifiers, navigation, and grain-size data are provided for 64 stations.

5. How consistent are the relationships among the observations, including topology?

   No additional checks for topological consistency were performed on the data

Are there legal restrictions on access or use of the data?

Access_Constraints: None

Use_Constraints: None

1. Who distributes the data set? (Distributor 1 of 1)

   Lawrence J. Poppe
   U.S. Geological Survey
   Geologist
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   508-548-8700 x2314 (voice)
   508-457-2310 (FAX)
   lpoppe@usgs.gov
   

2. What's the catalog number I need to order this data set?

   Regional Mapping of Surficial Sediments: Gulf of Maine and Georges Bank, Aggregates and Habitats Projects, johnston94.shp

3. What legal disclaimers am I supposed to read?

   Although this data set has been used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. 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.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	Five files (johnston94.shp, johnston94.dbf, johnston94.shx, johnston94.sbx, johnston94.sbn) comprising the ArcView point shapefile components, 'prj' and 'avl' files, metadata text file and browse graphic. in format ArcView shapefile (version 3.2) ESRI point shapefile Size: 0.059
     Media you can order:	CD-ROM (Density 650 Mbytes) Note: 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.

   • Cost to order the data: None

5. What hardware or software do I need in order to use the data set?

   The data is available in ArcView shapefile format. The user must have ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView, the user may utilize another GIS application package capable of importing data.

Dates:

Last modified: 16-Feb-2003

Metadata author:

Lawrence J. Poppe
U.S. Geological Survey
Geologist
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA

508-548-8700 x2314 (voice)
508-457-2310 (FAX)
lpoppe@usgs.gov

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

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