marshflux

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Michelle A. Roberts, Humboldt State University
Publication_Date: May 2001
Title: marshflux
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
A coverage showing marsh losses and gains in Humboldt Bay between 1944 and 1993.
Purpose:
To show the historic changes in marshes in Humboldt Bay, northern California.
Supplemental_Information:
This coverage is based on previously digitized versions of 1993 (marsh93.e00) and 1944(marsh44.e00) marsh coverages; therefore, this coverage inherits the same qualities as the originals. Also, due to the imperfections of the digitizing process, some of the marsh changes shown may not be real.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2001
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.267423
East_Bounding_Coordinate: -124.067148
North_Bounding_Coordinate: 40.875870
South_Bounding_Coordinate: 40.671942
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: marsh
Place:
Place_Keyword: Humboldt Bay
Stratum:
Stratum_Keyword: marsh
Temporal:
Temporal_Keyword: flux
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Steve Steinberg
Contact_Organization: Humboldt State University, Advanced Spatial Analysis Facility
Contact_Position: Department of Natural Resources GIS professor
Contact_Address:
Address_Type: mailing and physical address
Address:
College of Natural Resources Humboldt State University
City: Arcata
State_or_Province: CA
Postal_Code: 95521
Country: USA
Contact_Voice_Telephone: 707-826-3202
Contact_Facsimile_Telephone: 707-826-4145
Contact_Electronic_Mail_Address: asaf@humboldt.edu
Hours_of_Service: by appointment
Contact_Instructions:
Data is downloadable from </data-downloads.> If problems are encountered, email first, then call.
Data_Set_Credit: Created in ArcView by Michelle A. Roberts
Security_Information:
Security_Classification_System: None
Native_Data_Set_Environment:
Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcInfo 8.1.0.415
Cross_Reference:
Citation_Information:
Originator:
Humboldt State University, College of Natural Resources, Advanced Spatial Analysis Facility
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: None
Logical_Consistency_Report: None
Completeness_Report:
This coverage has not been field checked, or checked against any other record of marsh changes.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: None
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: None
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: NOAA, U.S.C.G.S
Publication_Date: 1993,1944
Edition: 1993-51st, 1944-36th
Series_Information:
Series_Name: N/A
Issue_Identification: N/A
Publication_Information:
Publication_Place: Washington D.C.
Publisher:
National Oceanic and Atmospheric Association; United States Coast and Geodetic Survey
Source_Scale_Denominator: 1993 - 1:24,000; 1944 - 1:30,000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1993/1944
Source_Currentness_Reference: publication date
Process_Step:
Process_Description:
Digital versions of the 1993 marshes and 1944 marshes already existed. These maps were combined, and areas containing only marsh in 1993 were selected out and called marsh gains. Areas with marsh only in 1944 were selected out and called marsh losses. The gains and losses were then combined into one map.
Process_Date: 2001
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Michelle A. Roberts
Contact_Organization: Geology Department, Humboldt State University
Contact_Position: Graduate student
Contact_Address:
Address_Type: mailing and physical address
Address:
Geology Department Humboldt State University
City: Arcata
State_or_Province: CA
Postal_Code: 95521
Country: USA
Contact_Voice_Telephone: 707-826-3660
Contact_Facsimile_Telephone: 707-826-5241
Contact_Electronic_Mail_Address: mar22@axe.humboldt.edu
Hours_of_Service: by appointment
Contact_Instructions: email preferred
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Complete chain
Point_and_Vector_Object_Count: 944
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 604
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 604
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 4
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Transverse Mercator
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -123.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000032
Ordinate_Resolution: 0.000032
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.978698
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: None
Depth_System_Definition:
Depth_Datum_Name: None
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: marshflux.aat
Entity_Type_Definition: Arc attribute table
Entity_Type_Definition_Source: Arc/Info
Attribute:
Attribute_Label: FID
Attribute:
Attribute_Label: SHAPE
Attribute:
Attribute_Label: FNODE#
Attribute_Definition: Internal sequence number of the "from" node
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: TNODE#
Attribute_Definition: Internal sequence number of the "to" node
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: LPOLY#
Attribute_Definition: Internal sequence number of the left polygon
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: RPOLY#
Attribute_Definition: Internal sequence number of the right polygon
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: LENGTH
Attribute_Definition: Length in coverage units
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: marshFLUX#
Attribute_Definition: Internal sequence number of the arc
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: marshFLUX-ID
Attribute_Definition: User-assigned feature ID
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: $ID
Attribute_Definition: Pseudo user-assigned feature ID
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: $FROMNODE
Attribute_Definition: Pseudo internal sequence number of the "from" node
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: $TONODE
Attribute_Definition: Pseudo internal sequence number of the "to" node
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: $LEFTPOLYGON
Attribute_Definition: Pseudo internal sequence number of the left polygon
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: $RIGHTPOLYGON
Attribute_Definition: Pseudo internal sequence number of the right polygon
Attribute_Definition_Source: Arc/Info
Detailed_Description:
Entity_Type:
Entity_Type_Label: marshflux.pat
Entity_Type_Definition: Polygon attribute table
Entity_Type_Definition_Source: Arc/Info
Attribute:
Attribute_Label: FID
Attribute:
Attribute_Label: SHAPE
Attribute:
Attribute_Label: AREA
Attribute_Definition: Area of polygon
Attribute_Definition_Source: User-defined
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of polygon
Attribute_Definition_Source: User-defined
Attribute:
Attribute_Label: marshFLUX#
Attribute_Definition: Internal sequence number of the polygon
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: marshFLUX-ID
Attribute_Definition: User-assigned feature ID
Attribute_Definition_Source: Arc/Info
Attribute:
Attribute_Label: CLASS
Attribute_Definition: Physical feature displayed
Attribute_Definition_Source: User-defined
Attribute:
Attribute_Label: YEAR
Attribute_Definition: Data source year
Attribute_Definition_Source: User-defined
Attribute:
Attribute_Label: GAIN_LOSS
Attribute_Definition: Area representing marsh gain or loss
Attribute_Definition_Source: User-defined
Attribute:
Attribute_Label: CAUSE
Attribute_Definition: Possible cause of gain/loss
Attribute_Definition_Source: User-defined
Overview_Description:
Entity_and_Attribute_Overview: None
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Humboldt State University, College of Natural Resources, Advanced Spatial Analysis Facility
Contact_Address:
Address_Type: mailing and physical address
Address:
College of Natural Resources Humboldt State Univesity
City: Arcata
State_or_Province: CA
Postal_Code: 95521
Country: USA
Contact_Voice_Telephone: N/A
Contact_Facsimile_Telephone: N/A
Contact_Electronic_Mail_Address: asaf@humboldt.edu
Hours_of_Service: 24 hours
Contact_Instructions:
<http://www.humboldt.edu/cnrs/> or <http://www.humboldt.edu/salab/>
Resource_Description: UNIX Server
Distribution_Liability: None
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
Format_Version_Number: 8.0
Format_Specification: None
File_Decompression_Technique: No compression applied
Transfer_Size: 0.431
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: </DATA-DOWNLOADS>
Access_Instructions:
Right click on marshflux.e00, "save as" to one's local directory
Online_Computer_and_Operating_System: UNIX
Fees: None
Ordering_Instructions: Free digital download
Turnaround: Depends on network speed
Custom_Order_Process: None
Technical_Prerequisites:
Software capable of importing Arc/Info export files (.e00) needed.
Available_Time_Period:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: April 2001
Ending_Time: indefinite
Metadata_Reference_Information:
Metadata_Date: 20010404
Metadata_Review_Date: N/A
Metadata_Future_Review_Date: N/A
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Geology Department, Humboldt State University
Contact_Person: Jason R. Patton and Michelle A. Roberts
Contact_Position: Graduate Students
Contact_Address:
Address_Type: mailing and physical address
Address:
Geology Department Humboldt State University
City: Arcata
State_or_Province: CA
Postal_Code: 95521
Country: USA
Contact_Voice_Telephone: 707-826-5243 (Geology GIS lab)
Contact_Facsimile_Telephone: N/A
Contact_Electronic_Mail_Address:
jrpatton@northcoast.com mar22@axe.humboldt.edu
Hours_of_Service: by appointment
Contact_Instructions: email preferred
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_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.4.38 on Mon Oct 15 15:56:46 2001