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Comparison of Urban Tree Canopy Classification With High Resolution Satellite Imagery and Three Dimensional Data Derived From LIDAR and Stereoscopic Sensors
Urban Forestry Remote Sensing Image Classification LIDAR Stereoscopic 3-D Data High Resolution Satellite Imagery
2015/1/9
Despite growing recognition as a significant natural resource, methods for accurately estimating urban tree canopy cover extent and change over time are not well-established. This study evaluates new ...
Observation of a local gravity potential isosurface by airborne lidar of Lake Balaton, Hungary
local gravity potential isosurface airborne lidar of Lake Balaton Hungary
2015/1/6
Airborne lidar is a remote sensing method commonly used for mapping surface topography in high resolution. A water surface in hydrostatic equilibrium theoretically represents a gravity potential isosu...
Lidar signal simulation for the evaluation of aerosols in chemistry transport models
Lidar signal simulation the evaluation of aerosols chemistry transport models
2014/12/10
We present an adaptable tool, the OPTSIM (OPTical properties SIMulation) software, for the simulation of optical properties and lidar attenuated backscattered profiles (β') from aerosol concentrations...
Annex to:Volcanic Ash Cloud Observation using Ground-based Ka-band Radar and Near-Infrared Lidar Ceilometer during the Eyjafjallajökull eruption
Earthquake GPS Historical seismology Ionosphere Irpinia
2015/8/18
Volcanic ash plumes are formed during explosive volcanic eruptions. After advection over several thousands of kilometers, volcanic ash particles are highly fragmented, dispersed and aged with micron- ...
Volcanic Ash Cloud Observation using Ground-based Ka-band Radar and Near-Infrared Lidar Ceilometer during the Eyjafjallajökull eruption
Volcanic eruptions radar lidar
2015/8/18
Active remote sensing techniques can probe volcanic ash plumes, but their sensitivity at a given distance depends upon the sensor transmitted power, wavelength and polarization capability. Building on...
Some remarks about lidar data preprocessing and different implementations of the gradient method for determining the aerosol layers
Lidar Aerosol Wavelet Preprocessing
2015/8/17
The determination of atmospheric aerosol layers from lidar returns is possible through automated algorithms. This product is useful, for example, in monitoring the Boundary Layer Height (BLH) as well ...
Observation of the Double Sodium Layer Over Haikou, China by Lidar
Lidar, Double Sodium Layer Mesosphere and Lower-Thermosphere
2013/10/3
A Double Sodium Layer (DSL) structure was observed during the night of August 22, 2011 over Haikou, China (20°N, 110°E) by Na lidar. This DSL comprised a typical sodium layer at altitudes of 80~105km ...
FILTERING AIRBORNE LIDAR DATA BY AN IMPROVED MORPHOLOGICAL METHOD BASED ON MULTI-GRADIENT ANALYSIS
LIDAR Filtering Airborne laser scanning Morphological gradient DEM
2014/4/24
The technology of airborne Light Detection And Ranging (LIDAR) is capable of acquiring dense and accurate 3D geospatial data. Although many related efforts have been made by a lot of researchers in th...
CHARACTERIZING URBAN VOLUMETRY USING LIDAR DATA
Built Volume Urban indicators LiDAR, Census data Density, Land Planning
2014/4/24
Urban indicators are efficient tools designed to simplify, quantify and communicate relevant information for land planners. Since
urban data has a strong spatial representation, one can use geograp...
LIDAR DATA RESOLUTION VERSUS HYDRO-MORPHOLOGICAL MODELS FOR FLOOD RISK ASSESSMENT
LiDAR topographical resolution hydro-morphological model
2014/4/24
Uncertainties in topographic data have a significant influence on hydro-morphological and hydraulic predictions and therefore on
flood risk assessment. In this work, the effects of topographic data ...
Assessing hydrometeorological impacts with terrestrial and aerial Lidar data in Monterrey, México
Hidrometeorological impacts Lidar Environmental policy Risk Management
2014/4/22
Light Detection Ranging (Lidar) is an efficient tool to gather points reflected from a terrain and store them in a xyz coordinate system, allowing the generation of 3D data sets to manage geoinformati...
Numerical Modeling of the Measure of Global Environmental Needs with Applications Laser-LIDAR
Transmission Lasers Optical Propagation Atmospheric Effects
2013/1/30
The functions of Bessel are used extensively in the various problems of the science and the technology. A laser offers practical remote sensing technologies for measuring environmental changes on both...
Maximum-likelihood reconstruction of photon returns from simultaneous analog and photon-counting lidar measurements
Maximum-likelihood reconstruction photon returns simultaneous analog photon-counting lidar
2011/10/18
We present a novel method for combining the analog and photon-counting measurements of lidar transient recorders into reconstructed photon returns. The method takes into account the statistical proper...
Maximum-likelihood reconstruction of photon returns from simultaneous analog and photon-counting lidar measurements
Maximum-likelihood reconstruction photon return simultaneous analog photon-counting lidar measurement
2011/8/2
Abstract: We present a novel method for combining the analog and photon-counting measurements of lidar transient recorders into reconstructed photon returns. The method takes into account the statisti...
Coincident measurements of PMSE and NLC above ALOMAR (69° N, 16° E) by radar and lidar from 1999–2008
PMSE NLC ALOMAR (69° N, 16° E) radar and lidar 1999–2008
2011/2/25
Polar Mesosphere Summer Echoes (PMSE) and Noctilucent Clouds (NLC) have been routinely measured at the ALOMAR research facility in Northern Norway (69° N, 16° E) by lidar and radar, respectively. 2900...