LiDAR Remote Sensing Data for the 2008 LiDAR imagery acquisition, the Geographic Data Committee's aerial subcommittee has chosen Merrick &Company as the vendor of choice.
The imagery deliverable data will include:
Over 3,695 square miles will be acquired which includes Harris County and its watersheds
A Horizontal Accuracy of <= 67cm RMS
A Vertical Accuracy of +/- 9.25cm RMSE A Ground Sample Distance (GSD) of 1 Meter
File formats:
Full feature mass DTM
Bare earth DTM
3-D break-lines
One foot contour
Ten (10) foot pixel bare earth DTM in Grid format
Bare earth SEM in Grid format
Hillshade for both the DTM and the SEM
The proposed acquisition date for the LiDAR data is to occur sometime between March and June of 2008.
It has not been determined if all data will be bundled together for sale due to the large size of the data; most likely, various file formats for the deliverable will be sold separately at different rates.
Currently, Merrick & Company is processing the LiDAR classification and breakline collection for DEM creation. This is a lengthy process which will have to be supplemented by the 2008 aerial imagery.
Since the data will not be fully delivered until late 2009, the LiDAR data will not be made available to the public until the second quarter of 2010.
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