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(NMMR Metadata gov.noaa.csc.maps:wa2002_willapa)
Metadata:
Identification Information:
Dataset Identifier:
gov.noaa.csc.maps:wa2002_willapa
Citation:
Citation Information:
Originator:
Department of Commerce (DOC), National Oceanic and Atmospheric
Administration (NOAA), National Ocean Service (NOS),
Coastal Services Center (CSC)
Publication Date:
20030227
Title:
2002 Willapa Bay LiDAR Project
Publication Information:
Publication Place:
Charleston, SC
Publisher:
NOAA's Ocean Service, Coastal Services Center (CSC)
Online Linkage:
http://www.csc.noaa.gov/ldart
Description:
Abstract:
NOAA contracted with Spencer B. Gross, Inc. (SBG) to obtain airborne
LiDAR of Willapa Bay, Washington during low tide conditions.
The LiDAR data was processed to deliver topographic surface elevation
data of the exposed intertidal flats and surrounding terrestrial
areas.
Purpose:
The elevation data will be used to investigate the impacts of
invasive species on the local ecology.
Supplemental Information:
The tide patterns of Willapa Bay required that the project area be
divided into three sections, and LiDAR flights
had to be flown in an East/West orientation to capture the low, low
tide conditions. As the tidal waters moved throughout the Bay,
flights
were completed according to tide data provided by the University of
California - Davis (Evolution & Ecology Dept.). Flights were
completed
during all acceptable periods - day or night.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date:
20020326
Ending Date:
20020424
Currentness Reference:
Ground condition
Status:
Progress:
Complete
Maintenance and Update Frequency:
None planned
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate:
-124.277
East Bounding Coordinate:
-123.616
North Bounding Coordinate:
46.7609
South Bounding Coordinate:
46.3479
Keywords:
Theme:
Theme Keyword Thesaurus:
ISO 19115 Topic Category
Theme Keyword:
Elevation
Theme:
Theme Keyword Thesaurus:
None
Theme Keyword:
LiDAR
Theme Keyword:
laser
Theme Keyword:
beach
Theme Keyword:
Bathymetry/Topography
Theme Keyword:
invasive species
Theme Keyword:
spartina alterniflora
Theme Keyword:
DEM
Theme Keyword:
erosion
Place:
Place Keyword Thesaurus:
None
Place Keyword:
US
Place Keyword:
Washington
Place Keyword:
Willapa Bay
Access Constraints:
None
Use Constraints:
Users should be aware that temporal changes may have occurred since this
data set was collected and some parts of the data may
no longer represent actual surface conditions. Users should not use this
data for critical applications without a full
awareness of it's limitations.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization:
Department of Commerce (DOC), National Oceanic and Atmsopheric
Administration (NOAA), National Ocean
Service (NOS), Coastal Services Center (CSC)
Contact Position:
TCM Project Scientist
Contact Address:
Address Type:
mailing and physical address
Address:
2234 South Hobson Avenue
City:
Charleston
State or Province:
South Carolina
Postal Code:
29405
Country:
United States
Contact Voice Telephone:
843-740-1200
Contact Electronic Mail Address:
tcm@csc.noaa.gov
Data Set Credit:
The 2002 Willapa Bay, WA LiDAR data were collected by Spencer B. Gross,
Inc. for the National Oceanic and Atmospheric Administration (NOAA)
Coastal Services Center and the Washington State Department of Natural
Resources.
Data Quality Information:
Attribute Accuracy:
Attribute Accuracy Report:
Independent ground control points were acquired using static GPS
methods in flat open areas throughout the project area. These
points were
estimated to have a vertical accuracy of 0.02m. The processed LiDAR
data were compared to ground control points within the project.
LiDAR
points surrounding the x-y of each ground control point were located.
A triangulated irregular network (TIN) model was created and a z
value
was interpolated. The interpolated LiDAR z value at ground control
x-y was compared to the ground control z. The mean elevation
difference for
all comparison was used to estimate and remove an elevation bias
within the LiDAR data. The elevation bias was determined to be
0.137m. Removal
of the bias resulted in a RMSE of 0.128m. Processing steps (datum
conversion, projection, grid interpolation, etc.) introduce
additional error
factors which have not been tested and factored into the reported
error.
Logical Consistency Report:
LiDAR Specifications: 7,000-feet AMT flight height; 24 degree field of
view, 2.84-meter average post-spacing, 2978-foot swaths flown with 30%
sidelap, 24,000 pulses per second; 1+1 collection (one return and one
intensity value per pulse). LiDAR flown with an ADS40, Leica Geosystems
LiDAR system, February 2002 model. The flight consisted of 71 E/W flight
lines with 2 N/S cross flight lines for data calibration purposes: 800
flight line miles covering 274 square miles. For each lift, 2 flight
lines were flown at the Astoria, OR airport for system calibration
purposes.
Completeness Report:
None available
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
RMSE at 1 sigma = 21 cm
Vertical Positional Accuracy:
Vertical Positional Accuracy Report:
RMSE at 1 sigma = 12.8 cm
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator:
NOAA Contract with Spencer B. Gross
Publication Date:
20020821
Title:
Willapa Bay LiDAR
Publication Information:
Publication Place:
Portland, OR
Publisher:
Spencer B. Gross, Inc.
Type of Source Media:
CD-ROM
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date:
20020402
Ending Date:
20020424
Source Currentness Reference:
ground condition
Source Citation Abbreviation:
Pre-processing Validation Check - Airport and Project for each
mission
Source Contribution:
Raw LiDAR x-y-z elevation data files
Process Step:
Process Description:
The raw LiDAR data was checked for complete coverage following
each mission and at the end of the flights. The data was
pre-processed using
SBG software to correctly establish the position of each x-y-z
point. The data was checked again for completeness and
conformance to
specifications by comparisons to ground surveyed points. The LiDAR
data was post-processed using a customized version of
Terrasolid software
and bare earth terrain models were developed.
Source Used Citation Abbreviation:
Pre-processing Validation Check - Airport and Project for each
mission
Process Date:
20021105
Process Contact:
Contact Information:
Contact Person Primary:
Contact Person:
Mike Renslow
Contact Organization:
Spencer B. Gross, Inc
Contact Position:
Project Manager
Contact Address:
Address Type:
mailing and physical address
Address:
13545 NW Science Park Dr
City:
Portland
State or Province:
OR
Postal Code:
97027
Country:
USA
Contact Voice Telephone:
503-646-1733
Contact Facsimile Telephone:
503-626-4818
Contact Electronic Mail Address:
mike@sbgmaps.com
Hours of Service:
0700 - 1700
Process Step:
Process Description:
The post-processed data from Spencer B. Gross were delivered in
Washington State Plane (South) projection referenced to NAD27
with vertical
elevations in US survey feet referenced to NGVD29. The data were
converted to geographic coordinates using General Cartographic
Transformation
Program software developed by the United States Geological Survey.
The data were then transformed to NAD83 using NADCON grids from
the National
Geodetic Survey (NGS). A final datum transformation was performed
to convert vertical elevations referenced to NGVD29 to NAVD88
using NGS
VERTCON grids. A comparison of the LiDAR data to a ground truth
data set indciated a 0.137m bias, which was removed. The data
were then
converted to a binary format and loaded into the LiDAR Data
Retrieval Tool (LDART) database.
Process Date:
20030219
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization:
Department of Commerce (DOC), National Oceanic and
Atmospheric Administration (NOAA), National Ocean
Service (NOS), Coastal Services Center (CSC)
Contact Position:
TCM Project Scientist
Contact Address:
Address Type:
mailing and physical
Address:
2234 South Hobson Avenue
City:
Charleston
State or Province:
South Carolina
Postal Code:
29405
Contact Voice Telephone:
843-740-1200
Contact Electronic Mail Address:
tcm@csc.noaa.gov
Process Step:
Process Description:
The NOAA National Geophysical Data Center (NGDC) received Lidar
data files on external harddrive. The disk contains LiDAR data
from the NOAA Coastal Services Center. This data is currently
being served via LDART at http://www.csc.noaa.gov/ldart . This
data can be used to re-populate the system.
Process Date:
20071226
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization:
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center,
NESDIS, NOAA, U.S. Department of Commerce
Contact Person:
Kelly Stroker
Contact Address:
Address Type:
Mailing and Physical Address
Address:
NOAA/NESDIS/NGDC E/GC1 325 Broadway
City:
Boulder
State or Province:
CO
Postal Code:
80305-3328
Country:
USA
Contact Voice Telephone:
(303) 497-4603
Contact TDD/TTY Telephone:
(303) 497-6958
Contact Facsimile Telephone:
(303) 497-6513
Contact Electronic Mail Address:
kelly.stroker@noaa.gov
Hours of Service:
7:30-5:00 Mountain
Contact Instructions:
Contact Data Center
Spatial Data Organization Information:
Direct Spatial Reference Method:
Point
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type:
Point
Spatial Reference Information:
Horizontal Coordinate System Definition:
Geographic:
Latitude Resolution:
0.00001
Longitude Resolution:
0.00001
Geographic Coordinate Units:
Decimal degrees
Geodetic Model:
Horizontal Datum Name:
North American Datum of 1983
Ellipsoid Name:
Geodetic Reference System 80
Semi-major Axis:
6378137
Denominator of Flattening Ratio:
298.257
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
Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization:
Department of Commerce (DOC), National Oceanic and Atmospheric
Adminstration (NOAA), National Ocean Service (NOS),
Coastal Services Center (CSC)
Contact Position:
TCM Project Scientist
Contact Address:
Address Type:
mailing and physical address
Address:
2234 South Hobson Avenue
City:
Charleston
State or Province:
SC
Postal Code:
29405-2413
Contact Voice Telephone:
843-740-1200
Contact Electronic Mail Address:
tcm@csc.noaa.gov
Resource Description:
Downloadable Data
Distribution Liability:
Any conclusions drawn from analysis of this information are not the
responsibility of NOAA, Coastal Services Center or it's partners.
Custom Order Process:
This data can be obtained on-line at the following URL:
http://maps.csc.noaa.gov/TCM/. The data set is dynamically generated
based on
user-specified parameters.
Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization:
DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center,
NESDIS, NOAA, U.S. Department of Commerce
Contact Person:
Kelly Stroker
Contact Address:
Address Type:
Mailing and Physical Address
Address:
NOAA/NESDIS/NGDC E/GC1 325 Broadway
City:
Boulder
State or Province:
CO
Postal Code:
80305-3328
Country:
USA
Contact Voice Telephone:
(303) 497-4603
Contact TDD/TTY Telephone:
(303) 497-6958
Contact Facsimile Telephone:
(303) 497-6513
Contact Electronic Mail Address:
kelly.stroker@noaa.gov
Hours of Service:
7:30-5:00 Mountain
Contact Instructions:
Contact Data Center
Distribution Liability:
Disclaimer While every effort has been made to ensure that these data
are accurate and reliable within the limits of the current state of
the art, NOAA cannot assume liability for any damages caused by any
errors or omissions in the data, nor as a result of the failure of
the data to function on a particular system. NOAA makes no warranty,
expressed or implied, nor does the fact of distribution constitute
such a warranty.
Custom Order Process:
The National Geophysical Data Center serves as the archive for this
LIDAR data. NGDC should only be contacted for this data if it cannot
be obtained from NOAA Coastal Services Center.
Metadata Reference Information:
Metadata Date:
20080207
Metadata Review Date:
20070816
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization:
Department of Commerce (DOC), National Oceanic and Atmoshperic
Administration (NOAA), National Ocean Service (NOS),
Coastal Services Center (CSC)
Contact Person:
Keil Schmid
Contact Position:
TCM Project Scientist
Contact Address:
Address Type:
mailing and physical address
Address:
2234 South Hobson Avenue
City:
Charleston
State or Province:
SC
Postal Code:
29405-2413
Contact Voice Telephone:
843-740-1200
Contact Electronic Mail Address:
tcm@csc.noaa.gov
Metadata Standard Name:
FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version:
FGDC-STD-001-1998
