title: Comparison of airborne lidar measurements with 420 kHz echo-sounder measurements of zooplankton.
abstract: Airborne lidar has the potential to survey large areas quickly and at a low cost per kilometer along a survey line. For this reason, we investigated the performance of an airborne lidar for surveys of zooplankton. In particular, we compared the lidar returns with echo-sounder measurements of zooplankton in Prince William Sound, Alaska. Data from eight regions of the Sound were compared, and the correlation between the two methods was 0.78. To obtain this level of agreement, a threshold was applied to the lidar return to remove the effects of scattering from phytoplankton.
authors.affiliation: National Oceanic and Atmospheric Administration Environmental Technology Laboratory, 325 Broadway, Boulder, Colorado 80305, USA. james.h.churnside@noaa.gov
authors.forename: James H
authors.initials: JH
authors.lastname: Churnside
authors.forename: Richard E
authors.initials: RE
authors.lastname: Thorne
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000413:Alaska; D000818:Animals; D004784:Environmental Monitoring / Q000379:methods*; D014465:Ultrasonics; D015048:Zooplankton
chemical_list: D000393:Air Pollutants