搜索结果: 46-60 共查到“理学 Retrieval”相关记录100条 . 查询时间(0.218 秒)
A comparative analysis of two wind velocity retrieval techniques by using a single Doppler radar
Velocity Azimuth Display Atmospheric Boundary Layer Atmospheric Boundary Layer
2009/7/22
This study compares the theoretical basis of the two wind velocity retrieval methods, Velocity Azimuth Display (VAD) and Velocity Area Display (VARD) by using data obtained by a single Doppler radar. ...
Discretization Independent Retrieval of Atmospheric Ozone Profile
University of Oulu,Department of Mathematical Sciences,FIN-90401 Oulu,Finland Sodankylä Geophysical Observatory,FIN-99600 Sodankylä ,Finland
2009/6/10
A simulation based study on the remote sensing problem of retrieving the atmospheric ozone
profile is performed so that the effects of the discretization error can be analyzed.
The retrieved profile...
Retrieval of SO2 from thermal infrared satellite measurements:correction procedures for the effects of volcanic ash
SO2 thermal infrared satellite measurements correction procedures volcanic ash
2010/2/8
The simultaneous presence of SO2 and ash in a volcanic plume can lead to a significant error in the SO2 column abundance retrieval when multispectral Thermal InfraRed (TIR) data are used. The ash part...
Retrieval of temperature,H2O,O3,HNO3,CH4,N2O,ClONO2 and ClO from MIPAS reduced resolution nominal mode limb emission measurements
Retrieval temperature H2O O3 HNO3 CH4 N2O ClONO2 ClO MIPAS reduced resolution
2010/2/8
Retrievals of temperature, H2O, O3, HNO3, CH4, N2O, ClONO2 and ClO from MIPAS reduced spectral resolution nominal mode limb emission measurements outperform retrievals from respective full spectral re...
Technical Note: Feasibility of CO2 profile retrieval from limb viewing solar occultation made by the ACE-FTS instrument
CO2 profile solar occultation ACE-FTS instrument
2009/5/6
Major limitations of our present knowledge of the global distribution of CO2 in the atmosphere are the uncertainty in atmospheric transport mixing and the sparseness of in situ concentration measureme...
Stochastic simulation experiment to assess radar rainfall retrieval uncertainties associated with attenuation and its correction
rainfall terrestrial hydrological processes Stochastic simulation experiment
2009/4/29
As rainfall constitutes the main source of water for the terrestrial hydrological processes, accurate and reliable measurement and prediction of its spatial and temporal distribution over a wide range...
Soil moisture retrieval through a merging of multi-temporal L-band SAR data and hydrologic modelling
Soil moisture synthetic aperture radar moisture content
2009/4/28
The objective of the study is to investigate the potential of retrieving superficial soil moisture content (mv) from multi-temporal L-band synthetic aperture radar (SAR) data and hydrologic modelling....
Application of the Spectral Structure Parameterization technique: retrieval of total water vapor columns from GOME
Spectral Structure Parameterization technique total water vapor columns GOME
2009/3/10
We use a recently proposed spectral sampling technique for measurements of atmospheric transmissions called the Spectral Structure Parameterization (SSP) in order to retrieve total water vapor columns...
Retrieval of nitrogen dioxide stratospheric profiles from ground-based zenith-sky UV-visible observations: validation of the technique through correlative comparisons
nitrogen dioxide zenith-sky UV-visible
2009/3/9
A retrieval algorithm based on the Optimal Estimation Method (OEM) has been developed in order to provide vertical distributions of NO2 in the stratosphere from ground-based (GB) zenith-sky UV-visibl...
Retrieval methods of effective cloud cover from the GOME instrument: an intercomparison
Retrieval methods effective cloud cover GOME instrument
2009/2/20
The radiative scattering by clouds leads to errors in the retrieval of column densities and concentration profiles of atmospheric trace gas species from satellites. Moreover, the presence of clouds ch...
First retrieval of global water vapour column amounts from SCIAMACHY measurements
retrieval water vapour SCIAMACHY measurements
2009/2/20
Global water vapour column amounts have been derived for the first time from measurements of the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) on the European envir...
Stratospheric and tropospheric NO2 variability on the diurnal and annual scale: a combined retrieval from ENVISAT/SCIAMACHY and solar FTIR at the Permanent Ground-Truthing Facility Zugspitze/Garmisch
NO2 variability ENVISAT/SCIAMACHY solar FTIR
2009/2/18
Columnar NO2 retrievals from solar FTIR measurements at the Zugspitze (47.42° N, 10.98° E, 2964 m a.s.l.), Germany were investigated synergistically with columnar NO2 retrieved from SCIAMACHY data by ...
Surface pressure retrieval from SCIAMACHY measurements in the O2 A Band: validation of the measurements and sensitivity on aerosols
Surface pressure retrieval sensitivity aerosols
2009/2/16
We perform surface pressure retrievals from cloud-free Oxygen A band measurements of SCIAMACHY. These retrievals can be well validated because surface pressure is a quantity that is, in general, accu...
Alternative polarisation retrieval for SCIAMACHY in the ultraviolet
Alternative polarisation SCIAMACHY ultraviolet
2009/2/16
We introduce an alternative method for the retrieval of polarisation in the ultraviolet by the satellite spectrometer SCIAMACHY. Unlike the operational polarisation retrieval algorithm, this method do...
Retrieval of ozone column content from airborne Sun photometer measurements during SOLVE II: comparison with coincident satellite and aircraft measurements
ozone column content airborne Sun photometer measurement satellite aircraft
2009/2/13
During the 2003 SAGE (Stratospheric Aerosol and Gas Experiment) III Ozone Loss and Validation Experiment (SOLVE) II, the fourteen-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) was mounte...