Developing a Climatology of Cirrus Lidar Ratios Using Univeristy of Wisconsin Hsrl Observations
نویسندگان
چکیده
Measurements of ice cloud lidar ratio from the University of Wisconsin High Spectral Resolution Lidar System (UW HSRL) are shown, for the period 2013/06/18-2013/11/04 in Hunstville, AL. These data were acquired as part of the SEAC4RS campaign. The layer-averaged median lidar ratio ,at 532 nm, for non-precipitating ice-clouds, 0.3 < OD < 3.0, observed during the experiment was determined to be 25.7 +/10.6 sr. As part of this work we’ve also developed an automated cloud and precipitation classification and detection algorithm.
منابع مشابه
An Investigation of Cirrus Cloud Properties Using Airborne Lidar
Title of dissertation: AN INVESTIGATION OF CIRRUS CLOUD PROPERTIES USING AIRBORNE LIDAR John Edward Yorks, Doctor of Philosophy, 2014 Dissertation directed by: Russell R. Dickerson Department of Atmospheric and Oceanic Science The impact of cirrus clouds on the Earth’s radiation budget remains a key uncertainty in assessing global radiative balance and climate change. Composed of ice, and locat...
متن کاملLong-term trend analysis and climatology of tropical cirrus clouds using 16 years of lidar data set over Southern India
Sixteen-year (1998–2013) climatology of cirrus clouds and their macrophysical (base height, top height and geometrical thickness) and optical properties (cloud optical thickness) observed using a ground-based lidar over Gadanki (13.5 N, 79.2 E), India, is presented. The climatology obtained from the ground-based lidar is compared with the climatology obtained from 7 and a half years (June 2006–...
متن کاملModeled Radiative Forcing Differences from Cirrus Extinction Inputs Derived from HSRL and Standard Backscatter Lidar Techniques
متن کامل
Comparison of Aerosol Classification Results from Airborne High Spectral Resolution Lidar (hsrl) Measurements and the Calipso Vertical Feature Mask
The NASA Langley Research Center (LaRC) airborne High Spectral Resolution Lidar (HSRL) on the NASA B200 aircraft has acquired large datasets of aerosol extinction (532nm), backscatter (532 and 1064nm), and depolarization (532 and 1064nm) profiles during 18 field missions across North America since 2006. The lidar measurements include scale-invariant aerosol parameters that vary with aerosol typ...
متن کاملInfluence of local surface albedo variability and ice crystal shape on passive remote sensing of thin cirrus
Airborne measurements of solar spectral radiance reflected by cirrus are performed with the HALO-Solar Radiation (HALO-SR) instrument onboard the High Altitude and Long Range Research Aircraft (HALO) in November 2010. The data are used to quantify the influence of surface albedo variability on the retrieval of cirrus optical thickness and crystal effective radius. The applied retrieval of cirru...
متن کامل