Overwash produced by TS Ernesto (1-2 September 2006) on the North End of Assateague Island

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Assateague Island National Seashore
Publication_Date: 20061214
Title:
Overwash produced by TS Ernesto (1-2 September 2006) on the North End of Assateague Island
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: http://science.nature.nps.gov/nrdata
Description:
Abstract:
Assateague Island is a barrier island subject to forces that dynamically alter the physical and biotic properties of the island. Storms are a major driver of change, causing shoreline erosion and often shaping interior island characteristics through overwash events. Tropical Storm Ernesto impacted Assateague Island on 1-2 September and the island overwashed in several locations. Ernesto was a tropical depression at this time, but interacted with a high pressure system, producing hgih winds and waves.  This dataset contains elevations of overwash areas on the northend of Assateague Island shortly after Ernesto passed.  Horizontal and vertical position was determined with a Trimble 5700 RTK GPS total station on 7 September 2006.
Purpose:
The purpose of this data set is to show the effects of overwash on the island and how rapidly this can reshape the shore. The dynamic nature of coastal barriers such as Assateague Island is a defining characteristic, influencing nearly every aspect of their ecology. Fundamentally disturbance driven systems, barrier islands and their endemic biota are continually shaped by physical forces on a time scale vastly accelerated in comparison to mainland systems. Because of the rapid pace and scope of change, long term monitoring is crucial towards understanding natural barrier island conditions as well as anthropogenic influences.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20060907
Currentness_Reference:
ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -75.134655
East_Bounding_Coordinate: -75.096837
North_Bounding_Coordinate: 38.319310
South_Bounding_Coordinate: 38.242349
Keywords:
Theme:
Theme_Keyword_Thesaurus: Assateague Island National Seashore Keyword Thesaurus
Theme_Keyword: Geomorphology
Theme_Keyword: Beach Dynamics
Theme_Keyword: Coastal Dynamics
Theme_Keyword: Overwash
Theme_Keyword: Storms
Theme:
Theme_Keyword_Thesaurus: National Park Service Theme Category Thesaurus
Theme_Keyword: Physical
Theme_Keyword: Landscape
Theme_Keyword: Water
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: environment
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: North America
Place_Keyword: Maryland
Place_Keyword: Worcester County
Place_Keyword: Assateague Island National Seashore
Place:
Place_Keyword_Thesaurus: National Park System Unit Name Thesaurus
Place_Keyword: Assateague Island National Seashore
Place:
Place_Keyword_Thesaurus: National Park System Unit Code Thesaurus
Place_Keyword: ASIS
Access_Constraints: None
Use_Constraints:
None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Assateague Island National Seashore
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address:
7206 National Seashore Lane
City: Berlin
State_or_Province: Maryland
Postal_Code: 21811
Country: United States
Contact_Voice_Telephone: 410-641-1443
Contact_Facsimile_Telephone: 410-641-1099
Contact_Electronic_Mail_Address: asis_gis@nps.gov
Hours_of_Service: Mon thru Fri 0900 - 1600
Data_Set_Credit:
Arty Rodriguez
Security_Information:
Security_Classification_System: none
Security_Classification: Unclassified
Security_Handling_Description: none
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attributes are accurate as recorded and as reported after processing in Trimble Geomatics Office.
Logical_Consistency_Report:
Topology is consistent and clean.
Completeness_Report:
The data set is complete for overwash areas of interest.  Other overwash areas occurred on Assateague Island during this storm, however all overwash areas were not surveyed.  All overwash areas on and in the vicinity of the constructed storm berm were surveyed.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
<= 0.15 m
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
<= 0.20 m
Lineage:
Process_Step:
Process_Description:
Areas of overwash were surveyed when weather and ground conditions became favourable.  A Trimble RTK 5700 GPS total station was used to record horizontal and vertical position.  The base station, with a Trimble Zephyr Geodetic antenna and Trimmark III radio was setup on GPS 3 (immediately north of the constructed storm berm).  The rover receiver was a Trimble 5700 receiver with Zephyr antenna.

A west to east profile with a point taken every 5 seconds or at breaks in slope was surveyed through each overwash area.   A north to south profile was surveyed through each overwash fan using the same point interval.

One significant overwash area through the constructed storm berm was surveyed in a grid so as to produce a surface.  A point was shot every 5 seconds.
Process_Date: 20060907
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Assateague Island National Seashore
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address:
7206 National Seashore Lane
City: Berlin
State_or_Province: MD
Postal_Code: 21811
Country: USA
Contact_Voice_Telephone: 410-649-1443
Contact_Facsimile_Telephone: 410-641-1099
Hours_of_Service: Mon thru Fri 0900 - 1600
Process_Step:
Process_Description:
Data was imported into Trimble Geomatics Office.  Attributes and positional information was checked for accuraccy and completeness.

Data and attributes were exported as a .txt file.
Process_Date: 20060907
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Assateague Island National Seashore
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address:
7206 National Seashore Lane
City: Berlin
State_or_Province: Maryland
Postal_Code: 21811
Country: USA
Contact_Voice_Telephone: 410-641-1443
Contact_Facsimile_Telephone: 410-641-1099
Contact_Electronic_Mail_Address: ASIS_GIS@nps.gov
Hours_of_Service: 0900-1630 M-F
Process_Step:
Process_Description:
Data was converted to a shapefile in ArcCatalog.
Process_Date: 20060908
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Assateague Island National Seashore
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address:
7206 National Seashore Lane
City: Berlin
State_or_Province: Maryland
Postal_Code: 21811
Country: USA
Contact_Voice_Telephone: 410-641-1443
Contact_Facsimile_Telephone: 410-641-1099
Contact_Electronic_Mail_Address: ASIS_GIS@nps.gov
Hours_of_Service: 0900-1630 M-F
Process_Step:
Process_Description:
Dataset copied.
Source_Used_Citation_Abbreviation:
C:\ASIS_GIS_Projects\Overwash_elev\Fall06\asis_overwash_20060907
Cloud_Cover: none
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 447
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 18
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -75.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.01 m
Altitude_Distance_Units: meters
Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: asis_overwash_20060907
Entity_Type_Definition:
Overwash on Assateague Island National Seashore in 2004
Entity_Type_Definition_Source:
ASIS
Attribute:
Attribute_Label: Shape
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Attribute:
Attribute_Label: Time
Attribute_Definition:
time feature collection began
Attribute_Definition_Source:
ASIS
Attribute_Domain_Values:
Unrepresentable_Domain:
time that data collection was started
Attribute:
Attribute_Label: Name
Attribute_Definition:
point name
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential numbering. n(notch)#(notch #)_# or ow(overwash)#_pro(profile)cross(crossection)#
Attribute:
Attribute_Label: Descript
Attribute_Definition:
description of noteworthy points
Attribute_Domain_Values:
Unrepresentable_Domain:
text description of point condition
Attribute:
Attribute_Label: FeatCode
Attribute_Definition:
feature code recorded in field
Attribute_Domain_Values:
Unrepresentable_Domain:
short description of point recorded in field
Attribute:
Attribute_Label: Northing
Attribute_Definition:
Northing
Attribute_Domain_Values:
Unrepresentable_Domain:
Northing
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: 0.01 m
Attribute:
Attribute_Label: Easting
Attribute_Definition:
Easting
Attribute_Domain_Values:
Unrepresentable_Domain:
Easting
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: 0.01 m
Attribute:
Attribute_Label: Elevation
Attribute_Definition:
Elevation
Attribute_Domain_Values:
Unrepresentable_Domain:
Elevation
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: 0.01 m
Attribute:
Attribute_Label: Year
Attribute_Definition:
Year
Attribute_Domain_Values:
Beginning_Date_of_Attribute_Values: 2006
Ending_Date_of_Attribute_Values: 2006
Attribute:
Attribute_Label: FID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Month
Attribute_Definition:
Month
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Beginning_Date_of_Attribute_Values: 200609
Ending_Date_of_Attribute_Values: 200609
Attribute:
Attribute_Label: Day
Attribute_Definition:
Day
Beginning_Date_of_Attribute_Values: 20060907
Ending_Date_of_Attribute_Values: 20060907
Attribute:
Attribute_Label: Latitude
Attribute_Definition:
Latitude
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 38.242350
Range_Domain_Maximum: 38.319310
Attribute_Units_of_Measure: Decimal Degrees
Attribute_Measurement_Resolution: 00.000001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: 00.000001
Attribute_Value_Accuracy_Explanation:
Decimal Degrees
Attribute:
Attribute_Label: Longtude
Attribute_Definition:
Longitude
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -75.134510
Range_Domain_Maximum: -75.096940
Attribute_Units_of_Measure: Decimal Degrees
Attribute_Measurement_Resolution: 00.000001
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy: 00.000001
Attribute_Value_Accuracy_Explanation:
Decimal Degrees
Attribute:
Attribute_Label: ElipHght
Attribute_Definition:
Height above ellipsoid
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -36.100
Range_Domain_Maximum: -33.445
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 00.001
Attribute:
Attribute_Label: RMS
Attribute_Definition:
Root Mean Square
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.001
Range_Domain_Maximum: 0.008
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: MinSats
Attribute_Definition:
Minimum Number of Sattellites during observation
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 6
Range_Domain_Maximum: 9
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: HorPrec
Attribute_Definition:
Horizontal Precision
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.005
Range_Domain_Maximum: 0.025
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: VertPrec
Attribute_Definition:
Vertical Precision
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.008
Range_Domain_Maximum: 0.039
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 0.001
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Assateague Island National Seashore
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address:
7206 National Seashore Lane
City: Berlin
State_or_Province: Maryland
Postal_Code: 21811
Country: United States
Contact_Voice_Telephone: 410-641-1443
Contact_Facsimile_Telephone: 410-641-1099
Contact_Electronic_Mail_Address: asis_gis@nps.gov
Hours_of_Service: Mon thru Fri 0900 - 1600
Resource_Description: Downloadable Data
Distribution_Liability:
The National Park Service shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data and related graphics (i.e. "GIF or JPG" format files) are not legal documents and are not intended to be used as such. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they are derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data; it is not appropriate to use the related graphics as data. The National Park Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from an NPS server and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully on computer systems at the National Park Service, no warranty expressed or implied is made regarding the utility of the data on other systems for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: shp
Transfer_Size: 0.012
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://nrdata.nps.gov/ASIS/ASISDATA/asis_overwash_20060907.zip
Fees: none
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20060907
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Metadata_Reference_Information:
Metadata_Date: 20070828
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Assateague Island National Seashore
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address:
7206 National Seashore Lane
City: Berlin
State_or_Province: Maryland
Postal_Code: 21811
Country: United States
Contact_Voice_Telephone: 410-649-1443
Contact_Facsimile_Telephone: 410-649-1099
Contact_Electronic_Mail_Address: asis_gis@nps.gov
Hours_of_Service: Mon thru Fri 0900 - 1600
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: none
Metadata_Use_Constraints:
none
Metadata_Extensions:
Online_Linkage: http://nrdata.nps.gov/profiles/nps_profile.xml
Profile_Name: NPS Metadata Profile
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
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