Results 71 to 80 of about 2,030,862 (242)
Near Surface Geophysics, EarlyView.Abstract Utilizing synthetic models for the interpretation of ground‐penetrating radar (GPR) profiles can aid in the detection of hydrogeological structures by identifying their signatures. In this study, finite difference (FD) forward modelling was used to understand the detection ability of 50 MHz GPR for (1) the quaternary deposit–bedrock contact ...
Annika Katarina Åberg +5 more
wiley +1 more source
Research on Synchronous Inversion Algorithm Based on Tri-Wavelength DIAL
OpticsTraditionally, retrieving both temperature and CO2 concentration in atmospheric remote sensing has relied on two independent lidar systems, leading to increased system complexity and limited coordination.
Zhixiao Xu +4 more
doaj +1 more source
EPJ Web of Conferences, 2016 The paper presents the results of DIAL measurements of the vertical ozone distribution at the Siberian lidar station. Sensing is performed according to the method of differential absorption and scattering at wavelength pair of 299/341 nm, which are ...
Romanovskii O. A. +4 more
doaj +1 more source
Clear air turbulence detection and characterisation in the delicat airborne lidar project [PDF]
, 2010 We report on a development of a long-range airborne UV high spectral resolution lidar, intended for the detection and characterisation of clear air turbulence (CAT).
Hervé Barny +19 more
core
Scaling turbulence drives the general circulation
Quarterly Journal of the Royal Meteorological Society, EarlyView.The NOAA Gulfstream SP4, which deployed the GPS dropsondes over the NE Pacific Ocean as part of the Winter Storms Project during the January–March periods of 2004, 2005 and 2006. Abstract Statistical multifractal analysis of airborne and dropsonde observations is used to show that persistence of velocity after molecular collisions breaks the continuous
Adrian F. Tuck
wiley +1 more source
EPJ Web of Conferences, 2018 Monitoring the emission of gases is difficult to achieve in industrial sites and in environments presenting poor infrastructures. Hence, robust methodologies should be developed and coupled to Lidar technology to allow remote sensing of gas emission ...
Galtier Sandrine +6 more
doaj +1 more source
Scheimpflug-like processing of differential absorption lidar data on water vapor [PDF]
EPJ Web of ConferencesDifferential Absorption Lidar (DiAL) method is widely used for a number of ground-based and airborne greenhouse gas measurement applications. However, for a direct detection in the 2µm range, other sources of random noise can be neglected in front of the
Esnouf Tancrède +5 more
doaj +1 more source
Latent Heat Fluxes over Complex Terrain from Airborne Water Vapour and Wind Lidars [PDF]
, 2009 Tropospheric profiles of water vapour and wind were measured with a differential absorption lidar (DIAL) and a heterodyne detection Doppler wind lidar collo-cated onboard the DLR Falcon research aircraft in the past two years.
Kiemle, Christoph +3 more
core
Increasing urban flash flood risk attributable to both climate and development
Quarterly Journal of the Royal Meteorological Society, EarlyView.A new event impact attribution methodology that combines convection‐permitting climate model data with flood inundation modelling was used for a five‐hour flash‐flooding event in the suburbs of Leeds in 2014. The results show increased urban flood extent due to both climate change (+16%) and increased urbanisation (+29%).
Daniel F. Cotterill +5 more
wiley +1 more source
EPJ Web of Conferences, 2018 We have studied a ground based coherent differential absorption LIDAR (DIAL) for vertical profiling of water vapor density using a 1.5μm laser wavelength. A coherent LIDAR has an advantage in daytime measurement compared with incoherent LIDAR because the
Imaki Masaharu +2 more
doaj +1 more source