Link to USGS home pageBlue spacerBay image

Data files in Beach morphology monitoring in the Elwha River litoral cell, 2004-2009, Version 1.1

Metadata also available as - [Outline] - [Parseable text] - [XML]

Frequently-anticipated questions:


What does this data set describe?

Title:
Data files in Beach morphology monitoring in the Elwha River litoral cell, 2004-2009, Version 1.1
Abstract:
Data collected by the Beach Morphology Monitoring Program in the Elwha River Littoral Cell, starting in 2004. Beach monitoring efforts consisted of collecting topographic and bathymetric horizontal and vertical position data by a Real Time Kinematic Differential Global Positioning System (RTK-DGPS).
  1. How should this data set be cited?

    Warrick, Jonathan A. , George, Douglas A. , Stevens, Andrew W. , Eshleman, Jodi, Gelfenbaum, Guy, Kaminsky, George M. , Schwartz, Andrew K. , and Beirne, Matt, 2010, Data files in Beach morphology monitoring in the Elwha River litoral cell, 2004-2009, Version 1.1:.

    This is part of the following larger work.

    Warrick, J.A., George, D.A., Stevens, A.W., Eshleman, J., Gelfenbaum, G., Kaminsky, G.M., Schwartz, A.K., and Beirne, M., 2010, Beach morphology monitoring in the Elwha River litoral cell, 2004-2009, Version 1.1: Data Series 288, U.S. Geological Survey, Coastal and Marine Geology Program, Menlo Park, CA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -123.66667
    East_Bounding_Coordinate: -123.33333
    North_Bounding_Coordinate: 48.20000
    South_Bounding_Coordinate: 48.10000

  3. What does it look like?

    <http://walrus.wr.usgs.gov/infobank/w/w506ps/html/w-5-06-ps.index.png> (PNG)
    Image showing the survey coverage over Puget Sound areas.

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

    Beginning_Date: 09-Mar-2004
    Ending_Date: 19-Sep-2009
    Currentness_Reference: ground condition

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

    Geospatial_Data_Presentation_Form: tabular digital data

  6. How does the data set represent geographic features?

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

      This is a Point data set.

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

      Grid_Coordinate_System_Name: State Plane Coordinate System 1983
      State_Plane_Coordinate_System:
      SPCS_Zone_Identifier: 5601
      Lambert_Conformal_Conic:
      Standard_Parallel: 47.500000
      Standard_Parallel: 48.733333
      Longitude_of_Central_Meridian: -120.833333
      Latitude_of_Projection_Origin: 47.000000
      False_Easting: 1640416.666500
      False_Northing: 0.000000

      Planar coordinates are encoded using row and column
      Abscissae (x-coordinates) are specified to the nearest 0.01
      Ordinates (y-coordinates) are specified to the nearest 0.01
      Planar coordinates are specified in Survey feet

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Datum_Name: North American Vertical Datum of 1988
      Altitude_Resolution: 0.01
      Altitude_Distance_Units: meters
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates
      Depth_System_Definition:
      Depth_Datum_Name: Mean sea level
      Depth_Resolution: 0.01
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates

  7. How does the data set describe geographic features?

    ew_enviro_cnd
    Excel Spreadsheets (Source: USGS)

    YYYY
    Year of sample. (Source: NOAA)

    Range of values
    Minimum:2004
    Maximum:2009
    Units:years
    Resolution:1

    MM
    Month of sample. (Source: NOAA)

    Range of values
    Minimum:1
    Maximum:9
    Units:months
    Resolution:1

    DD
    Day of sample. (Source: NOAA)

    Range of values
    Minimum:1
    Maximum:31
    Units:days
    Resolution:1

    hh
    Hour of sample. (Source: NOAA)

    Range of values
    Minimum:0
    Maximum:23
    Units:hours
    Resolution:1

    mm
    Minute of sample. (Source: NOAA)

    Range of values
    Minimum:0
    Maximum:59
    Units:minutes
    Resolution:1

    WD
    Wind direction (the direction the wind is coming from in degrees clockwise from true N) during the same period used for WSPD. The old abbreviation is "WD", and the new, standarized abbreviation is "WDIR". Null values are indicated by "MM". (Source: NOAA)

    Range of values
    Minimum:1
    Maximum:360
    Units:degrees
    Resolution:1

    WSPD
    Wind speed (m/s) averaged over an eight-minute period for buoys and a two-minute period for land stations. Reported Hourly. (Source: NOAA)

    Range of values
    Minimum:0
    Maximum:15
    Units:meters per second
    Resolution:0.1

    GST
    Peak 5 or 8 second gust speed (m/s) measured during the eight-minute or two-minute period. Null values are indicated by "99" or "MM". (Source: NOAA)

    Range of values
    Minimum:0
    Maximum:19
    Units:meters per second
    Resolution:0.1

    WVHT
    Significant wave height (meters) is calculated as the average of the highest one-third of all of the wave heights during the 20-minute sampling period. Null values are indicated by "MM". (Source: NOAA)

    Range of values
    Minimum:0
    Maximum:2.7
    Units:meters
    Resolution:0.01

    DPD
    Dominant wave period (seconds) is the period with the maximum wave energy. Null values are indicated by "MM" or "99". (Source: NOAA)

    Range of values
    Minimum:0
    Maximum:16
    Units:seconds
    Resolution:0.01

    BARO
    Sea level pressure (hPa). The old abbreviation is "BARO", and the new, standarized abbreviation is "PRES". Null values are indicated by "MM" or "9999". (Source: NOAA)

    Range of values
    Minimum:0
    Maximum:1030.9
    Units:hectoPascals
    Resolution:0.1

    ATMP
    Air temperature (Celsius). Null values are indicated by "999" or "MM". (Source: NOAA)

    Range of values
    Minimum:5.7
    Maximum:20.2
    Units:Celsius degrees
    Resolution:0.1

    WTMP
    Sea surface temperature (Celsius). Null values are indicated by "999". (Source: NOAA)

    Range of values
    Minimum:8.1
    Maximum:15.1
    Units:Celsius degrees
    Resolution:0.1

    DEWP
    Dewpoint temperature taken at the same height as the air temperature measurement. Null values are indicated by "MM" or "999". (Source: NOAA)

    Range of values
    Minimum:0.8
    Maximum:14.5
    Units:Celsius degrees
    Resolution:0.1

    PTDY
    Pressure Tendency is the direction (plus or minus) and the amount of pressure change (hPa) for a three hour period ending at the time of observation. Null values are indicated by "MM". (Source: NOAA)

    Range of values
    Minimum:-2.5
    Maximum:2.6
    Units:hectoPascals
    Resolution:0.1

    Entity_and_Attribute_Overview:
    Sample of data_04/ew_enviro_cnd_04.xls:
      YYYY    MM    DD    hh    mm    WD    WSPD    GST    WVHT    DPD    BARO    ATMP    WTMP    DEWP    PTDY
      2004    9     1     0    20    260    7      8      MM      MM    1014      13.9    11.4    12.4    MM
      ...
      2004    9    14    20    50    290    3      4       0.7     6    1015.9    13.6    11.6    10      0.8
    
    Sample of data_05/ew_enviro_cnd_05.xls:
      YYYY    MM    DD    hh    mm    WD    WSPD    GST    WVHT    DPD    BARO    ATMP    WTMP    DEWP    PTDY
      2005    3     1     0    20    170    1      4      MM      MM    1011.3     8.7     8.4     7.7    MM
      ...
      2005    3    22    17    50     30    7      8       0.5     3    1010.7     7.6     8.7     2     -1
    
    Sample of data_06/ew_enviro_cnd_06.xls:
      YYYY    MM    DD    hh    mm    WD    WSPD    GST    WVHT    DPD    BARO    ATMP    WTMP    DEWP    PTDY
      2006    9     1     0     0    219    1.7    2       0.15    4    1022.6    14.8    13.6    12.2
      ...
      2006    9    30    23    30    212    4.5    6.1    99      99    1014.7    13.1    11.3   999
    
    Entity_and_Attribute_Detail_Citation:
    Warrick, J.A., George, D.A., Stevens, A.W., Eshleman, J., Gelfenbaum, G., Kaminsky, G.M., Schwartz, A.K., and Beirne, M., 2007, Beach morphology monitoring in the Elwha River litoral cell, 2004-2006: U.S. Geological Survey Data Series 288, 38 p.

    Entity_and_Attribute_Overview:
    Bathymetry XYZ ASCII files with X(UTM, m),  Y(UTM, m),  Depth(m, MLLW)
    
      Sample of data_04/septb/bathy/ew04_line012_b.xyz:
        291671.54 130704.64    0.34
        ...
        292034.68 131241.27 -13.62
    
      Sample of data_06/septb/bathy/ew06_line232_b.xyz:
        298770.67 131052.24    0.35
        ...
        299234.09 131601.74 -9.67
    
    Topography XYZ ASCII files with X(UTM, m),  Y(UTM, m),  Elevation(m, MLLW)
    
      Sample of data_04/septb/bathy/ew04_line012_t.xyz:
        291647.66 130677.12    0.83
        ...
        291644.45 130671.83    1.67
    
      Sample of of data_06/septb/topo/ew06_line232_t.xyz:
        298773.09 131064.48 -0.04
        ...
        298747.86 131035.10    3.53
    
    
    Entity_and_Attribute_Detail_Citation:
    Warrick, J.A., George, D.A., Stevens, A.W., Eshleman, J., Gelfenbaum, G., Kaminsky, G.M., Schwartz, A.K., and Beirne, M., 2007, Beach morphology monitoring in the Elwha River litoral cell, 2004-2006: U.S. Geological Survey Data Series 288, 38 p.


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

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

    Jonathan A. Warrick
    U.S. Geological Survey, Coastal and Marine Geology
    Geologist
    400 Natural Bridges Dr
    Santa Cruz, CA 95060-5792
    USA

    (831) 427-4793 (voice)
    (831) 427-4748 (FAX)
    jwarrick@usgs.gov


Why was the data set created?

The monitoring program was designed to characterize the littoral system of the Elwha River before the scheduled removal of two large dams in 2012. A primary objective of this work is to quantitatively describe the topography and bathymetry of the Elwha Rive littoral system so that the effects of dam removal may be quantified.


How was the data set created?

  1. From what previous works were the data drawn?

    K-2-04-PS (source 1 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2004, USGS CMG K-2-04-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2004 field activity collected field data in the Puget Sound.

    W-2-04-PS (source 2 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2004, USGS CMG W-2-04-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2004 field activity collected field data in the Puget Sound.

    K-1-05-PS (source 3 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2005, USGS CMG K-1-05-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2005 field activity collected field data in the Puget Sound.

    W-1-05-PS (source 4 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2005, USGS CMG W-1-05-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2005 field activity collected field data in the Puget Sound.

    W-2-05-PS (source 5 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2005, USGS CMG W-2-05-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2005 field activity collected field data in the Puget Sound.

    K-1-06-PS (source 6 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2006, USGS CMG K-1-06-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2006 field activity collected field data in the Puget Sound.

    W-1-06-PS (source 7 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2006, USGS CMG W-1-06-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2006 field activity collected field data in the Puget Sound.

    W-S1-06-PS (source 8 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2006, USGS CMG W-S1-06-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2006 field activity collected field data in the Puget Sound.

    W-S2-06-PS (source 9 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2006, USGS CMG W-S2-06-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2006 field activity collected field data in the Puget Sound.

    W-S2-06-PS (source 10 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2006, USGS CMG W-S2-06-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2006 field activity collected field data in the Puget Sound.

    W-S1-07-PS (source 11 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2007, USGS CMG W-S1-07-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2007 field activity collected field data in the Puget Sound.

    W-2-07-PS (source 12 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2007, USGS CMG W-2-07-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2007 field activity collected field data in the Puget Sound.

    W-2-08-PS (source 13 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2008, USGS CMG W-2-08-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2008 field activity collected field data in the Puget Sound.

    W-2-09-PS (source 14 of 14)
    U.S. Geological Survey, Coastal and Marine Geology Program, 2009, USGS CMG W-2-09-PS Metadata.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    This 2009 field activity collected field data in the Puget Sound.

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

    Date: 2007 (process 1 of 3)
    For topography data, profiles were exported from the handheld GPS unit and calibrated into the geodetic network using Trimble Geomatics Software. Quantities important to data quality were checked for errors during this operation. As the topographic data were much less dense than the bathymetric profiles, no smoothing was required.

    Date: 2007 (process 2 of 3)
    For bathymetry data, a constant salinity of 31 practical salinity units (psu) was assumed and water temperature at the time of data collection was derived from the average of daily temperature recorded by the National Data Buoy Center (NDBC) Station 46088 in New Dungeness, Washington, to correct for seawater temperature variation grossly affecting depth estimates.

    A smoothing operation was then performed on the corrected bathymetric data using a LOWESS filter on the z-coordinate in the alongeline direction to reduce high freqency fluctuations from interferences, such as seaween, and the effect of vehicle pitch and roll on the bed elevation. A moving, non-overlapping window size of seven data points was used, regardless of the length of the profile line. A simple polynomial regression function was used to extrapolate data at both ends of the line where less than seven data points exist.

    Date: 2010 (process 3 of 3)
    Data from subsequent field activities were added to the initial 2007 data set.

  3. What similar or related data should the user be aware of?

    Amy Draut, U.S. Geological Survey, Coastal and , 2007, Studying the Elwha River, Washington, in Preparation for Dam Removal in Sound Waves Monthly Newsletter, Coastal Science & Reasearch News from Across the USGS.

    Online Links:

    Johathan Warrick, U.S. Geological Survey, Coastal and , 2007, Dam Removal on the Elwha River in Washington - Nearshore Impacts of Released Sediment in Sound Waves Monthly Newsletter, Coastal Science & Reasearch News from Across the USGS.

    Online Links:


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Refer to the report for information about the accuracy of the identification of the entities and assignments of values in the data set and description of tests used.

  2. How accurate are the geographic locations?

    Refer to the report for an explanation of the accuracy of the horizontal coordinate measurements and a description of the tests used.

  3. How accurate are the heights or depths?

    Refer to the report for an explanation of the accuracy of the vertical coordinate measurements and a description of the tests used.

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

    In a small number of bathymetric profiles, the LOWESS filter could not resolve short segments of the seabed due to poor echosounder returns. The data were removed from these areas of the profiles while the remaining sections were processed with the filtering algorithm.

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

    Quantities important to data quality were checked for errors when the topographic profiles were exported from the handheld GPS unit and calibrated into the geodetic network using Trimble Geomatics Software.

    Each individual bathymetric transect was examined to detect and remove any obvious outliers from the raw files that were either shallower than the echo sounder blanking interval or deeper than a user defined cutoff value.


How can someone get a copy of the data set?

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

Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. government is freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.

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

    U.S. Geological Survey, Coastal and Marine Geology
    c/o Jonathan A. Warrick
    Geologist
    400 Natural Bridges Dr
    Santa Cruz, CA 95060-5792
    USA

    (831) 427-4793 (voice)
    (831) 427-4748 (FAX)
    jwarrick@usgs.gov

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

  3. What legal disclaimers am I supposed to read?

    This information is not intended for navigational purposes.

    Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

    Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology.

    Please recognize the U.S. Geological Survey (USGS) as the source of this information.

    Physical materials are under controlled on-site access.

    Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 12-Mar-2010
Metadata author:
U.S. Geological Survey, Coastal and Marine Geology
c/o Andrew Stevens
345 Middlefield Rd MS-999
Menlo Park, CA 94025-3561
USA

(650) 329-5243 (voice)
(650) 329-5190 (FAX)
astevens@usgs.gov

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


Accessibility   |   FOIA   |   Privacy   |   Policies and Notices
U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/ds/288/
Maintained by: Mike Diggles
Page last modified and
Generated by mp version 2.9.8 on Fri Mar 12 13:47:24 2010