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The purpose of this survey is to provide NOAA with modern, accurate hydrographic survey data with which to update the nautical charts of the assigned area. |
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The purpose of this survey is to provide NOAA with modern, accurate hydrographic survey data with which to update the nautical charts of the assigned area. |
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NOAA Office of Coast Survey
Atlantic Hydrographic Branch
Fugro LADS, Incorporated
925 Tommy Munro Dr., Biloxi, MS 39532 |
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5000 |
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[] |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>These Lidar data were collected from July through August of 2008 covering a swath from shore outward to roughly three to four kilometers covering the area from Boca Raton south to Golden Beach. A laser, scanner, optical system, photo-multiplier tube and conditioning electronics collect the raw sounding signal. These items are mounted on a stabilized platform that is controlled via servo systems, using information from an Attitude and Heading Reference System (AHRS) mounted on the platform. Aircraft position information is obtained using GPS. Three computers, linked via an FDDI optic fiber network, control and monitor the AS operations. These computers are: a. The System Control Computer (SCC) for operator interface, logging and overall system coordination. b. The Navigation System and Support (NSS) computer for position monitoring and control. c. The Laser Control and Acquisition (LCA) computer for control of the scanner and laser and digitization of raw sounding data. The LCA also synchronizes overall AS timing. AS system time is synchronized with GPS time, and all data acquired for logging is appropriately time-stamped at the point of acquisition, then passed to the SCC to be written to Digital Linear Tape (DLT). Soundings in the LADS Mk II system are obtained by the transmission of laser pulses via a scanning system aboard the aircraft and by detecting return signals from land, the sea surface, the water body and the seabed. The transmitting and receiving components are housed on a stabilized platform that compensates for aircraft pitch and roll. The return signals are electronically amplified and conditioned prior to being digitized and logged. </SPAN><SPAN>The center of the scanning mirror is the survey reference point on the aircraft. The GPS antenna is positioned relative to this point.</SPAN></P><P><SPAN>These data are served to the public at the following NOAA sites:</SPAN><SPAN /></P><P><SPAN>https://www.ngdc.noaa.gov/nos/H12001-H14000/H12116.html</SPAN></P><P><SPAN>https://www.ngdc.noaa.gov/nos/H12001-H14000/H12117.html</SPAN></P><P><SPAN>https://www.ngdc.noaa.gov/nos/H12001-H14000/H12118.html</SPAN></P><P><SPAN /></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>These data are not to be used for navigation. While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.</SPAN></P></DIV></DIV></DIV> |
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| title:
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H_Surveys_FortLauderdale_2008_water |
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| tags:
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["United States East Coast","Lidar","Florida Coral Reef Tract","digital elevation model","elevation change","laser altimetry","derived surface","coastal resource management","Airborne Lidar Processing System","habitat mapping","benthic cover types","submarine elevations","submarine topography"] |
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en-US |
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150000000 |
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