Horizontal and
Vertical Geodetic Control Data for the Unites States.
Metadata
also available as
Layerbib Ref
Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: NOAA, National Geodetic Survey
Publication_Date: 2004
Title:
Horizontal and Vertical Geodetic Control Data for the Unites
States.
Edition: latest available
Geospatial_Data_Presentation_Form: Diagram
Series_Information:
Series_Name: N/A
Issue_Identification: N/A
Publication_Information:
Publication_Place: NOAA Campus, Silver Spring,
MD
Publisher: NOAA, National Geodetic Survey
Other_Citation_Details:
Questions concerning this data may be addressed to NGS
Information Services Branch EMail - ngs.software@noaa.gov
Phone - 301-713-3242
Online_Linkage: <http://www.ngs.noaa.gov/cgi-bin/datasheet.prl>
Description: NGS survey data for Volusia County, Fl
Abstract:
This data contains a set of geodetic control stations
maintained by the National Geodetic Survey. Each geodetic control station in
this dataset has either a precise Latitude/Longitude used for horizontal
control or a precise Orthometric Height used for
vertical control, or both. The data is extracted and selection done for Volusia
County, Fl.
The National Geodetic Survey (NGS) serves as the
Nation's depository for geodetic data. The NGS distributes geodetic data
worldwide to a variety of users. These geodetic data include the final results
of geodetic surveys, software programs to format, compute, verify, and adjust
original survey observations or to convert values from one geodetic datum to
another, and publications that describe how to obtain and use Geodetic Data
products and services.
Purpose:
Provide a base of reference for latitude, longitude and
height throughout the United States.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20120711
Currentness_Reference: retrieval date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Continually
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -80.7
East_Bounding_Coordinate: -81.5
North_Bounding_Coordinate: 29.4
South_Bounding_Coordinate: 28.7
Keywords:
Theme:
Theme_Keyword_Thesaurus: geodesy
Theme_Keyword:
NSRS, geodetic, horizontal control, vertical control,
ellipsoid height, benchmark, orthometric height,
latitude, longitude
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: The geographic limits of USA
including trust Territories
Stratum:
Stratum_Keyword_Thesaurus: N/A
Stratum_Keyword: N/A
Temporal:
Temporal_Keyword_Thesaurus: N/A
Temporal_Keyword: N/A
Access_Constraints:
Geodetic Data are in the public domain, not restricted from access
or distribution.
Use_Constraints:
Not restricted; Geodetic Data, including software were
developed and compiled with U.S. Government funding; no proprietary rights may
be attached to them nor may they be sold to the U.S. Government as part of any procurement
of ADP products or services.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: NGS Information Services
Branch
Contact_Organization: NOAA, National Geodetic
Survey
Contact_Position: IT Specialist
Contact_Address:
Address_Type: Mailing and Physical Address
Address:
SSMC2/9152 1315 East-west Highway
City:
Silver Spring
State_or_Province: MD
Postal_Code: 20910
Country: USA
Contact_Voice_Telephone: 301-713-3242
Contact_Facsimile_Telephone: 301-713-4172
Contact_Electronic_Mail_Address: ngs.software@noaa.gov
Hours_of_Service: 8:30am to 5:00pm EST
Contact_Instructions: Prefer EMail
Data_Set_Credit:
NOAA, National Geodetic Survey and cooperating organizations
Security_Information:
Security_Classification_System: DOD
Security_Classification: unclassified
Security_Handling_Description: none
Native_Data_Set_Environment:
The data was extracted from NGS datasheets which are
available at <http://www.ngs.noaa.gov/cgi-bin/datasheet.prl>
The NGS datasheet is a text document which summarizes key geodetic information
stored in the NGS database.
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Horizontal control stations (those with precise Latitude,
Longitude) were established in accordance with FGDC publications
"Standards and Specifications for Geodetic Accuracy Standards" and
"Geometric Geodetic Accuracy Standards and Specifications for Using GPS
Relative Positioning Techniques" The final Latitude, Longitude of these
stations were determined by a least squares adjustments of the horizontal
observations. Horizontal control station have Latitude, Longitudes displayed to
5 places and are identified by attribute POS_SRCE = 'ADJUSTED'
Lesser quality Latitude, Longitudes may also be
preset in the dataset. These are identified by a POS_SRCE attributes HD_HELD1,
HD_HELD2, or SCALED. These lesser quality positions are described at: <http://www.ngs.noaa.gov/cgi-bin/ds_lookup.prl?Item=SCALED>
Vertical control stations (those with precise Orthometric Heights) were established in accordance with
FGDC publications "Standards and Specifications for Geodetic Accuracy
Standards" The final Orthometric Height of these
stations were in most cases determined by a least squares adjustments of the
vertical observations but in some cases may have been keyed from old survey
documents. Vertical control stations have Orthometric
Heights displayed to 2 or 3 places and are identified by attribute ELEV_SRCE of
ADJUSTED, ADJ UNCH, POSTED,READJUST,N HEIGHT,RESET,COMPUTED
Lesser quality Orthometric
Heights may also be preset in the dataset. These are identified by a ELEV_SRCE attributes GPS_OBS, VERT_ANG, H_LEVEL, VERTCON,
SCALED. These lesser quality orthometric heights are
described at: <http://www.ngs.noaa.gov/cgi-bin/ds_lookup.prl?Item=SCALED>
IMPORTANT - Control stations do not always have both precise Latitude, Longitude AND precise Orthometric Height. A horizontal control station may have a orthometric height associated
with it which is of non geodetic quality. These types of heights are displayed
to 0, 1, or 2 decimal places. Worst case being off by +/- 1
meter. LIKEWISE - A Vertical control station may have a
Latitude, Longitude associated with it which is of non geodetic quality.
These types of Latitude, Longitudes are displayed to 0, 1 or 2 decimal places. Worst case being off by +/- 180 meter. Refer to <http://www.ngs.noaa.gov/cgi-bin/ds_lookup.prl?Item=SCALED>
for a description of the various type of methods used in determining the
Latitude, Longitude, and Orthometric Height.
Attribute POS_CHECK and ELEV_CHECK indicate whether
or not an observational check was made to the position and/or orthometric height. Care should be taken when using
"No Check" coordinates.
If attribute ELEV_SRCE = 'VERTCON' then the Orthometric Height was determined by applying NGS program
VERTCON to an Old NGVD 29 height. In most areas VERTCON gives results to +/- 2
cm. See <http://www.ngs.noaa.gov/TOOLS/Vertcon/vertcon.html>
for a more detailed explanation of VERTCON accuracy.
Ellipsoid Heights are also present in the dataset.
The ellipsoid heights consist of those determined using a precise geoid model, which are displayed to 2 decimal places and
are considered good to +/- .005 meters, and those displayed to 1 decimal place
and are considered only good to +/- .5 meters
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value: 95 percent confidence level
for geodetic quality data.
Attribute_Accuracy_Explanation:
Geodetic Data are continuously being processed; their
standards and specifications are being reviewed for next publication release.
"Standards and Specifications for Geodetic Control Networks", 1984
and "Geometric Geodetic Accuracy Standards and Specifications for Using
GPS Relative Positioning Techniques," FGCS (formally FGCC) publication
version 5.0 1989, are most current published documents.
Logical_Consistency_Report:
FGCS sponsored testing in cooperation with equipment
manufacturers and National Institutes of Standards and Technology,
Gaithersburg, MD 20850
Completeness_Report:
This dataset DOES NOT include destroyed marks. All other
non-publishable marks are NOT included. Non-publishable criteria is available
at <http://www.ngs.noaa.gov/cgi-bin/craigs_lib.prl?HELP_NONPUB=1>
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The description of tests are explained in "Geometric
Geodetic Accuracy Standards and Specifications For
Using GPS Relative Positioning Techniques," FGCS (formally FGCC)
publication version 5.0, 1989.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: .05 meters for highest order
of accuracy
Horizontal_Positional_Accuracy_Explanation:
Horizontal positional accuracy statements pertain
to horizontal control stations only.
i.e. Those with geodetic quality Latitude, Longitudes.
Positional Accuracy explanation contained in
"Geometric Geodetic Accuracy Standards and
Specifications For Using GPS Relative Positioning
Techniques," FGCS (formally FGCC) publication
version 5.0, 1989, (See table 1, p6).
with the exception of Order A and Order B which
have an accuracy of as described at:
<http://www.ngs.noaa.gov/cgi-bin/ds_lookup.prl?Item=HORZ%20ORDER>
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The description of tests are
explained in "Geometric Geodetic Accuracy Standards and Specifications for
Using GPS Relative Positioning Techniques," FGCS (formally FGCC)
publication version 5.0, 1989, (See table 1, p6).
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: .05 meter for highest order
of accuracy
Vertical_Positional_Accuracy_Explanation:
Vertical positional accuracy statements pertain
to vertical control stations only.
i.e. Those with geodetic quality Orthometric Heights.
Orthometric Height accuracy explanation is contained in
FGDC publication "Standards and Specifications for Geodetic Control Networks"
with the exception of vertical control of class 0
POSTED and READJUSTED Heights which are described at:
<http://www.ngs.noaa.gov/cgi-bin/ds_lookup.prl?Item=VERT%20ORDER>
Ellipsoid height accuracy
explanation contained in
"Geometric Geodetic
Accuracy Standards and
Specifications for Using GPS
Relative Positioning
Techniques," FGCS
(formally FGCC) publication
version 5.0, 1989. (see table 1, p6).
The accuracies for ellipsoid
heights are described at:
<http://www.ngs.noaa.gov/cgi-bin/ds_lookup.prl?Item=ELLP%20ORDER>
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: NOAA, National Geodetic Survey
Publication_Date: 20120711
Title:
"Input Formats and
Specifications of the National Geodetic Survey Data Base" published by
FGCS (formally FGCC)
Edition: latest available
Geospatial_Data_Presentation_Form: diagram
Series_Information:
Series_Name: N/A
Issue_Identification: N/A
Publication_Information:
Publication_Place: NOAA Campus, Silver Spring,
MD
Publisher: NOAA, National Geodetic
Survey
Other_Citation_Details: N/A
Online_Linkage: <http://www.ngs.noaa.gov/FGCS/BlueBook/>
Type_of_Source_Media: paper, Web
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1994
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Blue Book
Source_Contribution:
The geodetic data must be
submitted in the digital formats specified in the FGCS (formally FGCC)
publication "Input Formats and Specifications of the National Geodetic
Survey Data Base" which describes the formats and procedures for submission
of data for adjustment and assimilation into the National Geodetic Survey Data
Base. Separate volumes of this publication refer to horizontal (volume 1),
vertical (volume 2), and gravity (volume 3) control, and are available from
NOAA, National Geodetic Survey, 1315 East-West Hwy, Code N/CGS1, Silver Spring,
MD, 20910 (1-301-713-3242). Note guidelines for submission of three-dimensional
Global Positioning System (GPS) relative positioning data are contained in
annex L to volume 1.
Process_Step:
Process_Description:
The National Geodetic Survey
produces geodetic data. Geodetic data comprise the results of geodetic surveys
to determine, among other things, latitude, longitude, height, scale, and
orientation control. The National Geodetic Survey original field survey project
observations and final reports are accessioned into records system of the
National Archives and Records Administration of the U.S.A. These surveys
provide information valuable for a variety of uses in the mapping, charting and
surveying community.
The
NGS' final product is the geodetic data sheet. Geodetic data sheets are
comprehensive summaries of all published information for a given geodetic
reference point, including: the geographic position and/or height based on the
current reference datum, condition of the survey mark when it was last visited,
a description of where the point is located and how to reach it, and an
explanation of the terms used in the data sheet. In support of these geodetic
data, the NGS provides software, publications, and various user services,
including geodetic advisor program, instrument calibration, surveying
standards, and technical workshops.
This
dataset contains certain information extracted from the above mentioned data
sheet.
Source_Used_Citation_Abbreviation: Geodetic Data
Process_Date: Not complete
Source_Produced_Citation_Abbreviation: NOAA, National Geodetic
Survey and cooperating organizations.
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: NGS Information Services
Branch
Contact_Position: IT Specialist
Contact_Address:
Address_Type: Mailing and Physical Address
Address:
SSMC2/9152 1315 East-west
Highway
City: Silver Spring
State_or_Province: MD
Postal_Code: 20910
Country: USA
Contact_Voice_Telephone: 301-713-3242
Contact_Facsimile_Telephone: 301-713-4172
Contact_Electronic_Mail_Address: ngs.software@noaa.gov
Hours_of_Service: 8:30am to 5:00pm EST
Contact_Instructions: Prefer EMail
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference:
Geodetic Data- horizontal
positional datum conversion, use program NADCON (version 2.1)
Geodetic
Data - vertical positional datum conversion, use program VERTCON (version 2.0)
These
programs provide indirect spatial reference data and are available from NOAA,
National Geodetic Survey at <http://www.ngs.noaa.gov/PC_PROD/pc_prod.shtml>
Direct_Spatial_Reference_Method: point
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: point
Point_and_Vector_Object_Count: 1,500,000
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.00001
Longitude_Resolution: 0.00001
Geographic_Coordinate_Units: degrees, minutes, and
decimal seconds
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
(NAD 83)
Ellipsoid_Name: Geodetic Reference System 80
(GRS80)
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.26
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name:
North
American Vertical Datum of 1988 (NAVD 88), including Ellipsoidal and Orthometric Heights.
Altitude_Resolution: .01
Altitude_Distance_Units: meters
Altitude_Encoding_Method: implicit coordinate
Depth_System_Definition:
Depth_Datum_Name: the local surface
Depth_Resolution: .01
Depth_Distance_Units: meters
Depth_Encoding_Method: implicit coordinate
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
The current attributes and their meaning are shown below.
#FeatureId
Temporary unique ID assigned
to this station.
DATA_DATE-
The date
when this information was retrieved from the NGS database.
DATA_SRCE-
Data Source where the
information for the mark came from.
You should use this link to
obtain a full datasheet for the mark
or obtain the datasheets from
<http://www.ngs.noaa.gov/cgi-bin/datasheet.prl>
if you intend to use the data
for survey control.
DEC_LONG-
Decimal equivalent of the
LONGITUDE
Always displayed to 10
decimal places, but you should
see POS_SRCE and POS_ORDER to
determine the true accuracy.
DEC_LAT-
Decimal equivalent of the
LATITUDE
PID-
Permanent Identifier
assigned by NGS to each mark
NAME-
Station Name (a.k.a.
Designation)
STATE-
State Code
COUNTY-
County Name
QUAD-
USGS Topographic Quad Map
Name
LATITUDE-
Latitude in Deg-Min-Sec
format
LONGITUDE-
Longitude in Deg-Min-Sec
format
POS_DATUM-
Datum of the LATITUDE,LONGITUDE
Should always be NAD83
DATUM_TAG-
Datum Tag of the LATITUDE,LONGITUDE
NAD83 (1986) indicates
positions on the NAD83 datum for the
North
American Adjustment, completed in 1986.
NAD83 (nnnn)
indicates positions on the NAD83 datum for the
North American Adjustment,
but readjusted to a State High
Accuracy Reference Network
(HARN) on the date shown in (nnnn).
NAD83 (CORS) indicates
positions which are part of the CORS
network.
POS_SRCE-
Position Source for the
LATITUDE,LONGITUDE
ADJUSTED = Least squares
adjustment.
(Lat,Lon Rounded to 5 decimal places.)
HD_HELD1 = Differentially corrected hand held GPS observations.
(Lat,Lon Rounded to 2 decimal places.)
HD_HELD2 = Autonomous hand
held GPS observations.
(Lat,Lon Rounded to 1 decimal places.)
SCALED = Scaled from a topographic map.
(Lat,Lon Rounded to 0 decimal places.)
ELEVATION-
Present if available.
The Orthometric Height in METERS indicating the height above
the Geoid.
ELEV_DATUM-
Datum of the ELEVATION
ELEV_SRCE-
Elevation Source for the
ELEVATION
ADJUSTED = Direct Digital
Output from Least Squares Adjustment
of Precise Leveling.
(Rounded
to 3 decimal places.)
ADJ UNCH = Manually Entered
(and NOT verified) Output of
Least
Squares Adjustment of Precise Leveling.
(Rounded
to 3 decimal places.)
POSTED = Pre-1991 Precise Leveling Adjusted to
the NAVD 88 Network After
Completion of
the NAVD 88 General Adjustment
of 1991.
(Rounded
to 3 decimal places.)
READJUST = Precise Leveling
Readjusted as Required
by Crustal Motion or Other
Cause.
(Rounded
to 2 decimal places.)
N HEIGHT = Computed from
Precise Leveling Connected
at Only One Published Bench
Mark.
(Rounded
to 2 decimal places.)
RESET = Reset Computation of Precise Leveling.
(Rounded
to 2 decimal places.)
COMPUTED = Computed from
Precise Leveling Using
Non-rigorous
Adjustment Technique.
(Rounded
to 2 decimal places.)
LEVELING = Precise Leveling
Performed by Horizontal
Field
Party.
(Rounded
to 2 decimal places.)
H LEVEL = Level between control points not
connected
to bench mark.
(Rounded to
1 decimal places.)
GPS OBS = Computed from GPS Observations.
(Rounded to
1 decimal places.)
VERT ANG = Computed from
Vertical Angle Observations.
(Rounded to 1 decimal place;
If No
Check, to 0 decimal places.)
SCALED = Scaled from a Topographic Map.
(Rounded to
0 decimal places.)
U HEIGHT = Unvalidated height from precise leveling
connected at only one NSRS point.
(Rounded
to 2 decimal places.)
VERTCON = The NAVD 88 height was computed by applying the
VERTCON shift value to the
NGVD 29 height.
(Rounded
to 0 decimal places.)
ELLIP_HT-
Present if available.
The ellipsoid height in
METERS referenced to GRS80 ellipsoid.
ELLIP_SRCE-
Ellipsoid Ht Source for the
ELLIP_HT
Should always be GPS_OBS
when present.
POS_ORDER-
Order of accuracy for the
LATITUDE,LONGITUDE
Should be one of the
following-
A,B,1,2,3
Order and class for Orders
1, 2, and 3
are defined in the Federal
Geodetic Control Committee publication
"Standards
and Specifications for Geodetic Control Networks".
In addition-
Order A
stations have a relative accuracy of
5 mm +/-
1-10,000,000 relative to other A-order stations.
Order B stations have a
relative accuracy of
8 mm +/-
1- 1,000,000 relative to other A- and B-order stations.
POS_CHECK-
Y=Observational Check was
made for the position,
N=NO Observational Check was
made for the positions
ELEV_ORDER-
Order of accuracy for the
ELEVATION
Should be 1,2, or 3 for Vertical Control Stations.
Will be
blank for stations used for Horizontal Control only.
Also see attribute DIST_RATE
which is used for some
vertical control stations.
Elevation order and class
for 1, 2, and 3
are defined in the Federal
Geodetic Control
Committee publication
"Standards and Specifications for Geodetic
Control
Networks". In addition-
Vertical control which were
determined only for the purpose of
supplying a height for Horizontal
Distance Reductions are
assigned an order of 3.
Class 0 is used for special
cases of
orthometric vertical control as
follows-
Vertical Order/Class Tolerance Factor
-------------------- ----------------
1 class 0 2.0 mm or less
2 class 0 8.4 mm or less
3 class 0 12.0 mm or less
ELEV_CLASS-
Should be 0, 1, or 2
See details under ELEV_ORDER
ELEV_CHECK-
Y=Observational Check was
made for the orthometric height,
N=NO Observational Check was
made for the orthometric heights
VERTCONED-
Y=Orthometric
Height was determined by applying VERTCON
to an old NGVD 29 height.
N=Orthometric
Height determined by observations.
DIST_RATE-
Distribution rate for POSTED
and READJUSTED benchmarks
which do not have an Order and
Class are as follows
"Posted bench
marks" are vertical control points in the NGS data
base which were excluded from
the NAVD 88 general adjustment.
Some of the bench marks were
excluded due to large adjustment
residuals, possibly caused by
vertical movement of the bench marks
during the time interval between
different leveling epochs.
Adjusted NAVD 88 are
computed for posted bench marks by
supplemental adjustments.
A range of mean distribution
rate corrections is listed for each
posted bench mark in the data
portion of the publication.
A summary table of the mean
distribution rates and their codes is
listed below. The mean distribution rate corrections which
were
applied to the original leveling
observations is a good
indication of the usefulness of the
posted bench marks' adjusted
NAVD 88
heights.
Distribution Distribution
Rate Code Rate Correction
------------ ---------------
"a" 0.0 thru 1.0 mm/km
"b" 1.1 thru 2.0 "
"c" 2.1 thru 3.0 "
"d" 3.1 thru 4.0 "
"e" 4.1 thru 8.0 "
"f" greater than 8.0 mm/km
POSTED BENCH MARKS SHOULD BE
USED WITH CAUTION. As is the case for
all leveling projects, the
mandatory FGCS check leveling two-mark or
three-mark tie procedure will usually
detect any isolated movement
(or
other problem) at an individual bench mark.
Of course, regional
movement affecting all the marks
equally is not detected by the two-
or three-mark tie procedure.
ELLP_ORDER-
Order of accuracy for the
ELLIP_HT
Should be
1,2,3,4, or 5 if present.
The following ellipsoid
height order and class relative accuracy
standards have not yet been adopted
by the Federal Geodetic
Control Subcommittee, but
are currently in use by NGS-
Ellipsoid Height Maximum Height
Classification Difference Accuracy
------------------ -------------------
1 class 1 0.5 (mm)/sqrt(km)
1 class 2 0.7
2 class 1 1.0
2 class 2 1.3
3 class 1 2.0
3 class 2 3.0
4 class 1 6.0
4 class 2 15.0
5 class 1 30.0
5 class 2 60.0
The ellipsoid height
difference accuracy (b) is computed from a
a minimally constrained
correctly weighted least squares adjustment
by-
b = s / sqrt(d)
where
b = height difference
accuracy
s = propagated standard
deviation of ellipsoid height
difference in millimeters between
control points
obtained from the least squares
adjustment.
d = horizontal distance
between control points in kilometers
ELLP_class-
Class of accuracy for
ELLIP_HT
Should be 1 or 2
See details under ELLP_ORDER
FIRST_RECV-
Date when the station was
first monumented
or in the case of landmarks,
first observed.
LAST_RECV-
Date when
the station was last recovered.
LAST_COND-
Last recovered condition of
the mark.
Should be one of the
following-
MONUMENTED
FIRST OBSERVED
GOOD
POOR
MARK NOT FOUND
SEE DESCRIPTION
DESTROYED
LAST_RECBY-
Agency who
reported the last condition of the mark.
STABILITY-
The stability of the mark
may have 1 of 4 codes as indicated below-
A = MOST RELIABLE AND
EXPECTED TO HOLD POSITION/ELEVATION WELL
B = PROBABLY HOLD POSITION/ELEVATION
WELL
C = MAY HOLD, BUT OF TYPE
COMMONLY SUBJECT TO SURFACE MOTION
- E.G. FROST HEAVE, ETC
D = MARK OF QUESTIONABLE OR
UNKNOWN STABILITY
Entity_and_Attribute_Detail_Citation:
All values were obtained from
the NGA Datasheet available at <http://www.ngs.noaa.gov/cgi-bin/datasheet.prl>
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: NGS Information Services
Branch
Contact_Organization: NOAA, National Geodetic
Survey
Contact_Position: IT Specialist
Contact_Address:
Address_Type: Mailing and Physical Address
Address:
SSMC2/9152 1315 East-west
Highway
City: Silver Spring
State_or_Province: MD
Postal_Code: 20910
Country: USA
Contact_Voice_Telephone: 301-713-3242
Contact_Facsimile_Telephone: 301-713-4172
Contact_Electronic_Mail_Address: ngs.software@noaa.gov
Hours_of_Service: 8:30am to 5:00pm EST
Contact_Instructions: Prefer EMail
Resource_Description: Datasheet Shapefile
Distribution_Liability: The distributor does not
assume liability
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ShapeFile
Format_Version_Number: 0.3.0
Format_Version_Date: 1999
File_Decompression_Technique: Download options include PC
Zip and Unix compressed tar
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
<http://www.ngs.noaa.gov/cgi-bin/datasheet.prl?Explain=ShapeFiles>
Access_Instructions:
Distributed through <http://www.ngs.noaa.gov/cgi-bin/datasheet.prl>
Online_Computer_and_Operating_System: SUN Solaris
Fees: free if you retrieve it
yourself
Metadata_Reference_Information:
Metadata_Date: 20040129
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: NGS Information Services
Branch
Contact_Organization: NOAA, National Geodetic
Survey
Contact_Position: IT Specialist
Contact_Address:
Address_Type: Mailing and Physical Address
Address:
SSMC2/9152 1315 East-west
Highway
City: Silver Spring
State_or_Province: MD
Postal_Code: 20910
Country: USA
Contact_Voice_Telephone: 301-713-3242
Contact_Facsimile_Telephone: 301-713-4172
Contact_Electronic_Mail_Address: ngs.software@noaa.gov
Hours_of_Service: 8:30am to 5:00pm EST
Contact_Instructions: Prefer EMail
Metadata_Standard_Name: FGDC Content Standards for
Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints:
Geodetic Data are in the
public domain, not restricted from access or distribution.
Metadata_Use_Constraints:
not restricted; Geodetic
Data, including software were developed and compiled with U.S. Government
funding; no proprietary rights may be attached to them nor may they be sold to
the U.S. Government as part of any procurement of ADP products or services.
Metadata_Security_Information:
Metadata_Security_Classification_System: DOD
Metadata_Security_Classification: unclassified
Metadata_Security_Handling_Description: none
Metadata_Extensions:
Online_Linkage: N/A
Profile_Name: N/A
Generated by mp version 2.8.5 on Wed Jul 11
11:08:44 2012