U.S. Army Corps of Engineers (USACE), JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise)
unpublished material
2016_NCMP_FL_17RNL7034_1mGrid.tif
raster digital data
Kiln, MS
JALBTCX
http://coast.noaa.gov/htdata/lidar1_z/GEOID12B/data/?redirect=301ocm
https://coast.noaa.gov/dataviewer
These files contain rasterized topobathy lidar elevations generated from data collected by the Coastal Zone Mapping and Imaging Lidar (CZMIL) system. CZMIL integrates a lidar sensor with simultaneous topographic and bathymetric capabilities, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 National Adjustment of 2011 (NAD83 NA11). Vertical positions are referenced to the (NAD83 NA11) ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID12B model is used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). The 3-D position data are used to generate a series of gridded file products, which are tiled into quarter-quads or 5km boxes. The grid file index is provided by the shape file, MGRS_1km_17R_FL.shp and the numbers used to identify files are in the "Box" field of the shape file. The data file naming convention is based on the year, effort, area name, "Box" number and product type. An example file name is s "2016_NCMP_FL_01_BareEarth_1mGrid", where 2016 is the year of data collection, NCMP is the project under which data were collected, Florida is the area of data collection, 01 is the "Box" number, and BareEarth_1mGrid is the product type.
This data was collected as part of the NCMP to depict the elevations above and below the water in the Florida coastal zone.
20160519
unknown
20160720
unknown
ground condition
As needed
-80.288224
-80.281565
27.436668
27.429189
GCMD Earth Sciences Keywords
OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
SOLID EARTH > GEOMORPHOLOGY > COASTAL LANDFORMS/PROCESSES
OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY
EARTH SCIENCE > OCEANS >COASTAL PROCESSES > COASTAL ELEVATION
OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
HUMAN DIMENSIONS > LAND USE/LAND COVER > LAND USE CLASSES
LAND SURFACE > TOPOGRAPHY> TERRAIN ELEVATION
GCMD Data Center Keywords v7
DOD/USARMY/USACE/SAM/MOBILE/OPJ/JALBTCX > Department of Defense
United States Army
United States Army Corps of Engineers
Mobile District
Spatial Data Branch
Joint Airborne Lidar Bathymetry Technical Center of Expertise
None
Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX)
National Coastal Mapping Program (NCMP)
IWG-OCM
1mRaster
Bathymetry
U.S. Army Corps of Engineers (USACE)
Topography
Coastal Zone Mapping Imaging Lidar (CZMIL)
BareEarth
Mobile District
GCMD Instrument Keywords v7
LIDAR > LIGHT DETECTION AND RANGING
ISO 19115 Topic Categories
location
elevation
imageryBaseMapsEarthCover
Geographic Names Information System
United States
Florida
FL
Florida
GCMD Location Keywords v7
VERTICAL LOCATION > SEA FLOOR
VERTICAL LOCATION > LAND SURFACE
None
May
June
July
2016
These data have been developed from the best available sources. Although efforts have been made to ensure that the data are accurate and reliable, errors and variable conditions originating from physical sources used to develop the data may be reflected in the data supplied. Users must be aware of these conditions and bear responsibility for the appropriate use of the information with respect to possible errors, scale, resolution, rectification, positional accuracy, development methodology, time period, environmental and climatic conditions and other circumstances specific to these data. The user is responsible for understanding the accuracy limitations of the data provided herein. The burden for determining fitness for use lies entirely with the user. The user should refer to the accompanying metadata notes for a description of the data and data development procedures.
These data depict the heights at the time of the survey and are only accurate for that time. Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) would be appreciated in any publications or derived products. The data herein, including but not limited to geographic data, tabular data, analytical data, electronic data structures or files, are provided "as is" without warranty of any kind, either expressed or implied, or statutory, including, but not limited to, the implied warranties or merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the data is assumed by the user. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the U.S. Army Corps of Engineers, Mobile District Office, Spatial Data Branch be liable for direct, indirect, incidental, consequential or special damages of any kind, including, but not limited to, loss of anticipated profits or benefits arising out of use of or reliance on the data. The Spatial Data Branch does not accept liability for any damages or misrepresentation caused by inaccuracies in the data or as a result of changes to the data caused by system transfers or other transformations or conversions, nor is there responsibility assumed to maintain the data in any manner or form.
JALBTCX
Data Production Manager
mailing and physical
7225 Stennis Airport Rd., STE 100
Kiln
MS
01556
US
228-252-1121
228-252-1131
228-252-1133
JALBTCX@usace.army.mil
8 am - 5 pm Monday through Friday
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.0.3035
These data are not attributed.
N/A
These data are not attributed.
During inspection and QC of the lidar point cloud, flightline to flightline elevation differences met the CZMIL sensor specifications.
This data set covers the spatial extent of topographic lidar data obtained during this survey.
Compiled to meet 1 m horizontal RMSE at 95% confidence level.
CZMIL topographic data - Tested 9.5 cm vertical RMSE at 95% confidence level.
CZMIL bathymetric shallow FOV data - Tested 12.5 cm vertical RMSE at 95% confidence level.
CZMIL bathymetric deep FOV data - Tested 20 cm vertical RMSE at 95% confidence level.
These data were collected using the CZMIL system. It is owned and operated by the U.S. Army Corps of Engineers (USACE). The system collects topo/bathy lidar data at 10 kHz and RGB imagery at 2 Hz. A CASI-1500 hyperspectral line scanner is integrated with the system as well. Aircraft position, velocity and acceleration information are collected through a combination of Novatel and POS A/V 510 equipment. All raw data streams are transferred to the office for downloading and processing in CZMIL’s Hydro Fusion software. Aircraft position data are processed using POSPac software and the results are combined with the lidar data to produce 3-D positions for each lidar shot. Upon inspection and QA/QC in the software packages Fledermaus and PFM_ABE, anomalous data are flagged as invalid. PFM_ABE software then converts all valid data from ellipsoid to orthometric heights based on the NGS' GEOID12B model and exports valid lidar data as a series of unclassified LAS files.
20160519
JALBTCX
Data Production Manager
mailing and physical
7225 Stennis Airport RD., STE 100
Kiln
MS
01556
US
228-252-1121
228-252-1131
228-252-1133
JALBTCX@usace.army.mil
8 am - 5 pm Monday through Friday
LAS files are imported into GeoCue V2016.1.21.4, which is a geospatial workflow production and management software tool employed by JALBTCX to perform and monitor production of data products. Upon import into GeoCue, A customized classification macro, built upon the TerraScan V13 module within Microstation V8i, classifies valid topobathy data as ground points (2), unclassified points (1), and bathymetric points (29). Upon completion the macro, the classification results undergo quality control and any misclassified points are manually edited. In areas of dense vegetation the bare earth ground points might be incorrectly classified due to the inability of the laser to penetrate the canopy and reach the bare ground. In these areas, JALBTCX defaults to the algorithm’s “ground” surface instead of manually reclassifying those points. They are partitioned into a series of 5km or quarter quad delivery boxes, one Classified LAS file per box. The format of the file is LAS version 1.2. Data are classified as 1 (valid non-ground topographic data), 2 (valid ground topographic data), and 29 (valid bathymetric data).
20161014
JALBTCX
Data Production Manager
mailing and physical
7225 Stennis Airport Rd., STE 100
Kiln
MS
01556
US
228-252-1121
228-252-1131
228-252-1133
JALBTCX@usace.army.mil
8am - 5pm Monday through Friday
Data classified as ground points (2) and bathymetric points (29) in the las files are converted to a grid by generating a triangulated irregular network (TIN) and then extracting the grid node elevations from the TIN surface. The origin point of the grid is located at a horizontal position whose value is evenly divisible by the 1m grid resolution such that rasters from subsequent surveys have common cell boundaries. JALBTCX uses Quick Terrain Modeler V8 to perform this operation utilizing the following parameters; “Legacy Triangulation”, "Max Sample Excursion - 30000”, “Max Triangle Side – 30000”, “Radius - none”, “Tolerance – 1”, and “Tiling Settings Snap to Grid (Expand)." The grid is exported from Quick Terrain Modeler as an ESRI ASCII Z grid file. Utilizing an in-house python script within ESRI ArcMap V10.1, the ASCII Z grid file is converted to a tiff-format raster file whose projection is defined as “The North American Datum of 1983 (2011).” The raster is then multiplied against a corresponding 1m Grid mask raster, a mask image produced from JALBTCX’s 1m Grid, in ESRI’s Raster Calculator to remove interpolated areas where data does not exist.
20161030
JALBTCX
Data Production Manager
mailing and physical
7225 Stennis Airport Rd., STE 100
Kiln
MS
01556
US
228-252-1131
228-252-1121
228-252-1133
JALBTCX@usace.army.mil
8am - 5pm Monday through Friday
Raster
Pixel
0198
10277
1
8.9831528411952133e-009
8.9831528411952133e-009
Decimal Degrees
D NAD 1983 2011
GRS 1980
6378137.0
298.257222101
JALBTCX
Data Production Manager
mailing
7225 Stennis Airport Rd. STE 100
Kiln
MS
01556
US
228-252-1121
228-252-1133
JALBTCX@usace.army.mil
Please make data requests via email to JALBTCX@usace.army.mil.
These data have been developed from the best available sources. Although efforts have been made to ensure that the data are accurate and reliable, errors and variable conditions originating from physical sources used to develop the data may be reflected in the data supplied. Users must be aware of these conditions and bear responsibility for the appropriate use of the information with respect to possible errors, scale, resolution, rectification, positional accuracy, development methodology, time period, environmental and climatic conditions and other circumstances specific to these data. The user is responsible for understanding the accuracy limitations of the data provided herein. The burden for determining fitness for use lies entirely with the user. The user should refer to the accompanying metadata notes for a description of the data and data development procedures.
TIFF
rasterized hydrographic and topographic lidar elevation data
no compression applied
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=
https://coast.noaa.gov/htdata/lidar1_z/geoid12b/data/
Requests for large amounts of data are shipped on an external hard drive. Costs include the shipping cost to return the hard drive to JALBTCX.
20161101
JALBTCX
Data Production Manager
mailing and physical
7225 Stennis Airport Rd., STE 100
Kiln
MS
01556
US
228-252-1121
228-252-1131
228-252-1133
JALBTCX@usace.army.mil
8am- 5pm Monday through Friday
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time