NRCS LIDAR DEMs for Eastern Nebraska - 2 meter - 2010

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Merrick & Co
Publication_Date: 2011
Title:
NRCS LIDAR DEMs for Eastern Nebraska - 2 meter - 2010
Geospatial_Data_Presentation_Form: change
Series_Information:
Series_Name: DEM .img
Issue_Identification: DEM .img
Publication_Information:
Publication_Place: Aurora, Co
Publisher: Merrick & Co
Online_Linkage:
Description:
Abstract:
Using MARS software the ground classified LIDAR points are used to create an ESRI binary floating-point file (.flt/.hdr) .  The cell size is 1 meter.  Nebraska Department of Natural Resources produced 2 meter resolution ESRI rasters by resampling 1 meter ESRI rasters (provided by NRCS).  Using ESRI software the .flt/.hdr files are exported to an ERDAS .img file.  These files are created for each of the 17 counties involved.
Purpose:
These were created to provided the partners with an additional format for the LIDAR data that requires less storage.
Supplemental_Information:
Two foot interval contour generation
One meter raster data ESRI .flt/.hdr, ESRI grids, ERDAS .img formats

LAS data came from 3 projects NIROC, NRCS_Eastern_Nebraska and Prairie Creek

NIROC flown April 16, 2010 - April 28, 2010
NRCS_Eastern_Nebraska flown Nov 9, 2010 - April 9, 2011
Prairie Creek flown April 8, 2010 - April 28, 2010

The original LAS data was in Horizontal: UTM, Zone 14, NAD83, units meters
Vertical: NAVD88, units meters.  The vertical was changed to NAVD88, units feet for alll of the deliverable products
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20100408
Beginning_Time: unknown
Ending_Date: 20110409
Ending_Time: unknown
Currentness_Reference:
ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Unknown
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -97.3764745020188
East_Bounding_Coordinate: -96.8951241099511
North_Bounding_Coordinate: 41.0394348860319
South_Bounding_Coordinate: 41.4622337988534
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: DEM.
Theme_Keyword: Contours 2ft
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Nebraska
Place_Keyword: Butler Co
Place_Keyword: Cass Co
Place_Keyword: Dodge Co
Place_Keyword: Douglas Co
Place_Keyword: Howard Co
Place_Keyword: Johnson Co
Place_Keyword: Lancaster Co
Place_Keyword: Merrick Co
Place_Keyword: Nance Co
Place_Keyword: Nemaha Co
Place_Keyword: Otoe Co
Place_Keyword: Platte Co
Place_Keyword: Polk Co
Place_Keyword: Sarpy Co
Place_Keyword: Saunders Co
Place_Keyword: Colfax Co
Place_Keyword: Washington Co
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: 2010
Temporal_Keyword: 2011
Access_Constraints: unknown
Use_Constraints:
unknown
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Shandy Bittle
Contact_Organization: USDA-NRCS
Contact_Position: Project Manager
Contact_Address:
Address_Type: mailing and physical address
Address:
100 Centennial Mall N.
Address:
Suite 152
City: Lincoln
State_or_Province: Ne
Postal_Code: 68508
Country: USA
Contact_Voice_Telephone: 402-437-4020
Contact_Electronic_Mail_Address: Shandy.Bittle@ne.usda.gov
Hours_of_Service: 0800-1700
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.4000
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Verification of attribute accuracy of LIDAR data involves the use of filtering techniques.  Auto-filtering uses algorithms to reclassify data in the point cloud.  Hand-filtering involves the use of a technician working in a graphic environment to reclassify the erroneous points that may remain in the LIDAR point cloud after auto filter.
Logical_Consistency_Report:
Calibrations of the LIDAR flightline data are performed; this process is known as boresighting.  The flightlines are compared to evaluate both their relative and absolute accuracies.
Completeness_Report:
This dataset contains unclassified returns of the LIDAR sensor.  The sensor data was verified in MARS software to ensure complete coverage.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
n/a
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Vertical elevation will meet or exceed 0.185m RMSE (Accuracyz = 0.36m at the 95% confidence level)
Quantitative_Vertical_Positional_Accuracy_Assessment:
Vertical_Positional_Accuracy_Value: .185 meters RMSE
Vertical_Positional_Accuracy_Explanation:
Vertical elevation will meet or exceed 0.185m RMSE (Accuracyz = 0.36m at the 95% confidence level)
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Merrick & Co
Publication_Date: Unknown
Title:
Ground Control
Geospatial_Data_Presentation_Form: spreadsheet
Publication_Information:
Publication_Place: Aurora, Co
Publisher: Merrick & Co
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2010
Beginning_Time: unknown
Ending_Date: 2011
Ending_Time: unknown
Source_Currentness_Reference:
ground condition
Source_Citation_Abbreviation:
Ground_Control
Source_Contribution:
GPS control network for LIDAR acquisition and processing.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Merrikc & Co
Publication_Date: 2011
Title:
LIDAR
Geospatial_Data_Presentation_Form: las data
Series_Information:
Series_Name: LIDAR
Issue_Identification: LIDAR
Publication_Information:
Publication_Place: Aurora, Co
Publisher: Merrick & Co
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20100408
Beginning_Time: unknown
Ending_Date: 20110409
Ending_Time: unknown
Source_Currentness_Reference:
ground condition
Source_Citation_Abbreviation:
LIDAR
Source_Contribution:
LIDAR data
Process_Step:
Process_Description:
Using MARS software the ground classified LIDAR points are used to create an ESRI binary floating-point file (.flt/.hdr) .  The cell size is 1 meter.  Using ESRI software the .flt/.hdr files are exported to an ERDAS .img file.  These files are created for each of the 17 counties involved.
Source_Used_Citation_Abbreviation:
Ground Control
Source_Used_Citation_Abbreviation:
LIDAR
Process_Date: 20110811
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Doug Jacoby
Contact_Organization: Merrick & Co
Contact_Position: Project Manager
Contact_Address:
Address_Type: mailing and physical address
Address:
2450 S. Peoria St
City: Aurora
State_or_Province: Co
Postal_Code: 80014
Country: USA
Contact_Voice_Telephone: 303-353-3903
Contact_Electronic_Mail_Address: doug.jacoby@merrick.com
Hours_of_Service: 0800-1700 MST
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 20875
Column_Count: 19682
Vertical_Count: 1
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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: 14
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -99.000000
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: 0.001
Ordinate_Resolution: 0.001
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: .001
Altitude_Distance_Units: feet
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: DEM .img
Entity_Type_Definition:
DEM .img
Entity_Type_Definition_Source:
Merrick & Co
Overview_Description:
Entity_and_Attribute_Overview:
DEM .img 1 meter cell size
Entity_and_Attribute_Detail_Citation:
DEM .img 1 meter cell size
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Nebraska Department of Natural Resources
Contact_Position: GIS Coordinator
Contact_Address:
Address_Type: physical address
Address:
301 Centennial Mall South
City: Lincoln
State_or_Province: NE
Postal_Code: 68509
Country: USA
Contact_Voice_Telephone: 402-471-2363
Contact_Electronic_Mail_Address: dnr.gis@nebraska.gov
Resource_Description: Downloadable Data
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 1592.149
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Metadata_Reference_Information:
Metadata_Date: 20110811
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Shandy Bittle
Contact_Organization: USDA-NRCS
Contact_Position: Project Manager
Contact_Address:
Address_Type: mailing and physical address
Address:
100 Centennial Mall N.
Address:
Suite 152
City: Lincoln
State_or_Province: Ne
Postal_Code: 68508
Country: USA
Contact_Voice_Telephone: 402-437-4020
Contact_Electronic_Mail_Address: Shandy.Bittle@ne.usda.gov
Hours_of_Service: 0800-1700
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
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