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Physical Location
Data Set Info
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Spatial Info
Access Info
Distribution Info
URLs
Activity Log
Tech Environment
Data Quality
Lineage
Catalog Details

Summary

Browse Graphic

Short Citation
OCM Partners, 2024: 2012 NRCS-USGS Tupelo, MS Lidar Survey, https://www.fisheries.noaa.gov/inport/item/49823.
Full Citation Examples

Abstract

LiDAR data is a remotely sensed high resolution elevation data collected by an airborne

platform. The LiDAR sensor uses a combination of laser range finding, GPS positioning,

and inertial measurement technologies. The LiDAR systems collect data point clouds that

are used to produce highly detailed Digital Elevation Models (DEMs) of the earth's terrain,

man-made structures and vegetation. The task required the LiDAR data to be collected at a

nominal pulse spacing (NPS) of 1.0 meter. The final products include first, last, and at

least one intermediate return LAS, full classified LAS and one (1) meter pixel raster DEMs

of the bare-earth surface in ERDAS IMG Format. The LiDAR data was acquired from February 07,

2012 to March 05, 2012.

Original contact information:

Contact Org: USGS/NGTOC

Phone: (573) 308-654

Distribution Information

  • Create custom data files by choosing data area, product type, map projection, file format, datum, etc.

  • Simple download of data files.

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and some parts of this data may no longer represent actual surface conditions. Users should not use

this data for critical applications without a full awareness of its limitations. These data

depict the heights at the time of the survey and are only accurate for that time.

Controlled Theme Keywords

elevation

Child Items

No Child Items for this record.

Contact Information

Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Extents

Geographic Area 1

-89.174071° W, -88.28357° E, 34.596635° N, 32.683739° S

Time Frame 1
2012-02-07
Time Frame 2
2012-02-08
Time Frame 3
2012-02-09
Time Frame 4
2012-02-11
Time Frame 5
2012-02-12
Time Frame 6
2012-02-15
Time Frame 7
2012-02-17
Time Frame 8
2012-02-24
Time Frame 9
2012-02-25
Time Frame 10
2012-02-26
Time Frame 11
2012-02-29
Time Frame 12
2012-03-03
Time Frame 13
2012-03-04
Time Frame 14
2012-03-05

Item Identification

Title: 2012 NRCS-USGS Tupelo, MS Lidar Survey
Short Name: ms2012_usgs_nrcs_tupelo_m2559_metadata
Status: Completed
Publication Date: 2013-09-06
Abstract:

LiDAR data is a remotely sensed high resolution elevation data collected by an airborne

platform. The LiDAR sensor uses a combination of laser range finding, GPS positioning,

and inertial measurement technologies. The LiDAR systems collect data point clouds that

are used to produce highly detailed Digital Elevation Models (DEMs) of the earth's terrain,

man-made structures and vegetation. The task required the LiDAR data to be collected at a

nominal pulse spacing (NPS) of 1.0 meter. The final products include first, last, and at

least one intermediate return LAS, full classified LAS and one (1) meter pixel raster DEMs

of the bare-earth surface in ERDAS IMG Format. The LiDAR data was acquired from February 07,

2012 to March 05, 2012.

Original contact information:

Contact Org: USGS/NGTOC

Phone: (573) 308-654

Purpose:

This task order consisted of LiDAR data acquisition and processing for the USGS. The

task required the LiDAR data to be collected at a nominal pulse spacing (NPS) of 1.0 meter.

The LiDAR data was collected to meet the National Standard for Spatial Database Accuracy

(NSSDA) accuracy standards. The LiDAR data was provided in 1,500 meters x 1,500 meters

tiles in the UTM projection. The LiDAR tile file name was derived from the southwest corner

of each tile. The tiles are named based on the US National Grid.

Notes:

10467

Supplemental Information:

A lidar report from the vendor for this data set may be viewed here:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2559/supplemental/ms2012_usgs_nrcs_tupelo.pdf

A footprint of this data set may be viewed in Google Earth at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2559/supplemental/ms2012_usgs_nrcs_tupelo.kmz

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None LAZ

Physical Location

Organization: Office for Coastal Management
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: laz
Entity Attribute Overview:

LiDAR points in LAZ format

Entity Attribute Detail Citation:

none

Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility

of USGS, NRCS, Woolpert, Inc., NOAA, the Office for Coastal Management or its partners.

Support Roles

Data Steward

CC ID: 678853
Date Effective From: 2013-09-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Distributor

CC ID: 678855
Date Effective From: 2013-09-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Metadata Contact

CC ID: 678856
Date Effective From: 2013-09-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Point of Contact

CC ID: 678854
Date Effective From: 2013-09-06
Date Effective To:
Contact (Organization): NOAA Office for Coastal Management (NOAA/OCM)
Address: 2234 South Hobson Ave
Charleston, SC 29405-2413
Email Address: coastal.info@noaa.gov
Phone: (843) 740-1202
URL: https://coast.noaa.gov

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1134586
W° Bound: -89.174071
E° Bound: -88.28357
N° Bound: 34.596635
S° Bound: 32.683739

Extent Group 1 / Time Frame 1

CC ID: 1134572
Time Frame Type: Discrete
Start: 2012-02-07

Extent Group 1 / Time Frame 2

CC ID: 1134573
Time Frame Type: Discrete
Start: 2012-02-08

Extent Group 1 / Time Frame 3

CC ID: 1134574
Time Frame Type: Discrete
Start: 2012-02-09

Extent Group 1 / Time Frame 4

CC ID: 1134575
Time Frame Type: Discrete
Start: 2012-02-11

Extent Group 1 / Time Frame 5

CC ID: 1134576
Time Frame Type: Discrete
Start: 2012-02-12

Extent Group 1 / Time Frame 6

CC ID: 1134577
Time Frame Type: Discrete
Start: 2012-02-15

Extent Group 1 / Time Frame 7

CC ID: 1134578
Time Frame Type: Discrete
Start: 2012-02-17

Extent Group 1 / Time Frame 8

CC ID: 1134579
Time Frame Type: Discrete
Start: 2012-02-24

Extent Group 1 / Time Frame 9

CC ID: 1134580
Time Frame Type: Discrete
Start: 2012-02-25

Extent Group 1 / Time Frame 10

CC ID: 1134581
Time Frame Type: Discrete
Start: 2012-02-26

Extent Group 1 / Time Frame 11

CC ID: 1134582
Time Frame Type: Discrete
Start: 2012-02-29

Extent Group 1 / Time Frame 12

CC ID: 1134583
Time Frame Type: Discrete
Start: 2012-03-03

Extent Group 1 / Time Frame 13

CC ID: 1134584
Time Frame Type: Discrete
Start: 2012-03-04

Extent Group 1 / Time Frame 14

CC ID: 1134585
Time Frame Type: Discrete
Start: 2012-03-05

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Access Information

Security Class: Unclassified
Data Access Procedure:

This data can be obtained on-line at the following URL:

https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2559

;

Data Access Constraints:

None

Data Use Constraints:

Users should be aware that temporal changes may have occurred since this data set was collected

and some parts of this data may no longer represent actual surface conditions. Users should not use

this data for critical applications without a full awareness of its limitations. These data

depict the heights at the time of the survey and are only accurate for that time.

Distribution Information

Distribution 1

CC ID: 741543
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2559
Distributor:
File Name: Customized Download
Description:

Create custom data files by choosing data area, product type, map projection, file format, datum, etc.

Distribution 2

CC ID: 741544
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2559/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 741546
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 741547
URL: https://coast.noaa.gov
URL Type:
Online Resource

URL 3

CC ID: 741548
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2559/supplemental/ms2012_usgs_nrcs_tupelo.kmz
Name: Browse Graphic
URL Type:
Browse Graphic
File Resource Format: kmz
Description:

This graphic shows the lidar coverage for the Tupelo, Mississippi

USGS-NRCS lidar survey collected in 2012.

Activity Log

Activity Log 1

CC ID: 678901
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 678900
Activity Date/Time: 2017-11-14
Description:

Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 718394
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 741545
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Technical Environment

Description:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3

Data Quality

Horizontal Positional Accuracy:

Horizontal accuracy is +/- 3.8-foot (115 cm) at the 95%

confidence level. LiDAR system calibration is available in the project report.

Vertical Positional Accuracy:

LAS data covering the Tupelo, MS 1m NPS Lidar Task Order was compared to survey control points to determine the FVA of the LAS Swath and of the Bare-Earth DEM. In addition, this LAS data was compared to supplemental points from categories: Bare Earth Open Terrain, Urban, Tall Weeds/Crops, Brush Lands and Trees, and Forested Fully Grown.

LAS Swath Fundamental Vertical Accuracy (FVA)

Tested 0.16 meters fundamental vertical accuracy at 95 percent confidence level in open terrain using RMSE(z) x 1.9600

Supplemental Vertical Accuracy (SVA)

Bare Earth/Open Terrain Land Cover Classification Supplemental Vertical Accuracy (SVA) Tested 0.101 meters supplemental vertical accuracy at the 95th percentile in Bare Earth/Open Terrain. Tested against the DEM.

Brush Lands and Trees Land Cover Classification Supplemental Vertical Accuracy (SVA) Tested 0.322 meters supplemental vertical accuracy at the 95th percentile in Brush Lands and Trees. Tested against the DEM.

Forested and Fully Grown Land Cover Classification Supplemental Vertical Accuracy (SVA) Tested 0.128 meters supplemental vertical accuracy at the 95th percentile in Forested and Fully Grown. Tested against the DEM.

Tall Weeds/Crops Land Cover Classification Supplemental Vertical Accuracy (SVA) Tested 0.265 meters supplemental vertical accuracy at the 95th percentile in Tall Weeds/Crops. Tested against the DEM.

Urban Land Cover Classification Supplemental Vertical Accuracy (SVA) Tested 0.081 meters supplemental vertical accuracy at the 95th percentile in Urban. Tested against the DEM.

Consolidated Vertical Accuracy (CVA)

Tested 0.200 meters consolidated vertical accuracy at the 95th percentile level, derived according to ASPRS Guidelines for Vertical Accuracy Reporting for LiDAR Data. Tested against the DEM.

Completeness Measure:

Cloud Cover: 0

Completeness Report:

Complete

Conceptual Consistency:

This data is visually inspected by Woolpert, Inc.

Lineage

Process Steps

Process Step 1

CC ID: 1134566
Description:

Using Leica ALS60(LiDAR) system, 233 flight lines of high density data, at a nominal pulse

spacing (NPS) of 1 meter, were collected for the NRCS Tupelo, MS (approximately 3,697

square miles). Data Acquisition Height = 6,500 feet AGL - Aircraft Speed = 130 Knots.

Multiple returns were recorded for each laser pulse along with an intensity value for

each return. A total of fourteen (14) missions were flown during a period of February 07,

2012 through March 05, 2012. Two airborne global positioning system (GPS) base stations

were used in support of the LiDAR data acquisition. 18 ground control points were

surveyed through static methods. The geoid used to reduce satellite derived elevations

to orthometric heights was Geoid09. Data for the task order is referenced to the UTM Zone

16N, North American Datum of 1983 (NAD83), and NAVD88, in Meters. Airborne GPS data was

differentially processed and integrated with the post processed IMU data to derive a

smoothed best estimate of trajectory (SBET). The SBET was used to reduce the LiDAR slant range

measurements to a raw reflective surface for each flight line. The coverage was classified to

extract a bare earth digital elevation model (DEM) and separate last returns. In addition to the

LAS deliverables, one layer of coverage was delivered in the IMG Format: bare-earth.

Process Date/Time: 2012-02-07 00:00:00

Process Step 2

CC ID: 1134567
Description:

The ALS60 calibration and system performance is verified on a periodic basis

using Woolpert's calibration range. The calibration range consists of a large building and

runway. The edges of the building and control points along the runway have been located

using conventional survey methods. Inertial measurement unit (IMU) misalignment angles

and horizontal accuracy are calculated by comparing the position of the building edges

between opposing flight lines. The scanner scale factor and vertical accuracy is

calculated through comparison of LiDAR data against control points along the runway.

Field calibration is performed on all flight lines to refine the IMU misalignment angles.

IMU misalignment angles are calculated from the relative displacement of features within

the overlap region of adjacent (and opposing) flight lines. The raw LiDAR data is reduced

using the refined misalignment angles.

Process Date/Time: 2011-01-01 00:00:00

Process Step 3

CC ID: 1134568
Description:

Once the data acquisition and GPS processing phases are complete, the LiDAR

data was processed immediately to verify the coverage had no voids. The GPS and IMU data was

post processed using differential and Kalman filter algorithms to derive a best estimate of

trajectory. The quality of the solution was verified to be consistent with the accuracy

requirements of the project.

Process Date/Time: 2012-02-08 00:00:00

Process Step 4

CC ID: 1134569
Description:

The individual flight lines were inspected to ensure the systematic

and residual errors have been identified and removed. Then, the flight lines were compared

to adjacent flight lines for any mismatches to obtain a homogenous coverage throughout the

project area. The point cloud underwent a classification process to determine bare-earth points

and non-ground points utilizing "first and only" as well as "last of many" LiDAR returns. This

process determined Default (Class 1), Ground (Class 2), Noise (Class 7), Water (Class 9),

Ignored Ground (Class 10), Overlap Default (Class 17), and Overlap Ground (Class 18). The

bare-earth (Class 2 - Ground) LiDAR points underwent a manual QA/QC step to verify that

artifacts have been removed from the bare-earth surface. The surveyed ground control

points are used to perform the accuracy checks and statistical analysis of the LiDAR dataset.

Process Date/Time: 2012-05-01 00:00:00

Process Step 5

CC ID: 1134570
Description:

The NOAA Office for Coastal Management (OCM) received topographic files in .LAZ format. The files contained

lidar elevation and intensity measurements. The data were received in UTM Zone 16 N (meters) and NAVD88

vertical datum (meters). OCM performed the following processing for data storage and Digital Coast

provisioning purposes:

1. The topographic laz files were converted from orthometric (NAVD88) heights to ellipsoidal heights using Geoid09.

2. The topographic laz files were transformed from UTM Zone 16N to a Geographic Coordinate system (NAD83).

3. The topographic laz files were cleaned of high and low error points and variable length records (vlr) were removed.

4. The topographic las files' horizontal units were converted from meters to decimal degrees.

Process Date/Time: 2013-09-05 00:00:00

Catalog Details

Catalog Item ID: 49823
GUID: gov.noaa.nmfs.inport:49823
Metadata Record Created By: Anne Ball
Metadata Record Created: 2017-11-15 15:22+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2022-08-09 17:11+0000
Metadata Record Published: 2022-03-16
Owner Org: OCMP
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2022-03-16
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2023-03-16