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Tomographic retrieval of cloud liquid water fields from a single scanning microwave radiometer aboard a moving platform – Part 2: Observation system simulation experiments
cloud liquid water fields a single scanning microwave radiometer a moving platform Observation system simulation experiments
2010/8/16
Part 1 of this research concluded that many conditions of the 2003 Wakasa Bay experiment were not optimal for the purpose of tomographic retrieval. Part 2 (this paper) then aims to find possible impro...
Tomographic retrieval of cloud liquid water fields from a single scanning microwave radiometer aboard a moving platform – Part 1: Field trial results from the Wakasa Bay experiment
cloud liquid water fields a single scanning microwave radiometer the Wakasa Bay experiment
2010/8/16
Tomographic methods offer great potential for retrieving three-dimensional spatial distributions of cloud liquid water from radiometric observations by passive microwave sensors. Fixed tomographic sys...
On retrieval of lidar extinction profiles using Two-Stream and Raman techniques
lidar extinction profiles Two-Stream Raman techniques
2010/8/12
The Two-Stream technique employs simultaneous measurements performed by two elastic backscatter lidars pointing at each other to sample into the same atmosphere. It allows for a direct retrieval of th...
Limb scatter ozone retrieval from 10 to 60 km using a multiplicative algebraic reconstruction technique
Limb scatter ozone multiplicative algebraic reconstruction technique
2009/9/14
The OSIRIS instrument onboard the Odin spacecraft routinely measures vertical profiles of spectrally dispersed, limb scattered sunlight from the upper troposphere into the lower mesosphere. These meas...
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...
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...
Retrieval of CO from SCIAMACHY onboard ENVISAT: detection of strongly polluted areas and seasonal patterns in global CO abundances
SCIAMACHY onboard ENVISAT strongly polluted areas seasonal patterns global CO abundances
2009/2/11
SCIAMACHY onboard the European environmental research satellite ENVISAT is an UV/visible/near-infrared spectrometer providing 3 near infrared channels covering wavelengths from 1-1.75 µm, 1.94-2...
Total ozone retrieval from GOME UV spectral data using the weighting function DOAS approach
Total ozone retrieval GOME UV spectral data function DOAS approach
2009/2/8
A new algorithm approach called Weighting Function Differential Optical Absorption Spectroscopy (WFDOAS) is presented which has been developed to retrieve total ozone columns from nadir observations ...
A practical demonstration on AMSU retrieval precision for upper tropospheric humidity by a non-linear multi-channel regression method
AMSU retrieval precision upper tropospheric humidity non-linear multi-channel regression method
2009/2/6
A neural network algorithm inverting selected channels from the Advance Microwave Sounding Unit instruments AMSU-A and AMSU-B was applied to retrieve layer averaged relative humidity. The neural netwo...
Iterative maximum a posteriori (IMAP)-DOAS for retrieval of strongly absorbing trace gases: Model studies for CH4 and CO2 retrieval from near infrared spectra of SCIAMACHY onboard ENVISAT
(IMAP)-DOAS trace gases CH4 CO2 infrared spectra SCIAMACHY onboard ENVISAT
2009/1/23
In the past, differential optical absorption spectroscopy (DOAS) has mostly been employed for atmospheric trace gas retrieval in the UV/Vis spectral region. New spectrometers such as SCIAMACHY onboard...
Ground-based remote sensing of HDO/H2O ratio profiles: introduction and validation of an innovative retrieval approach
Ground-based remote sensing HDO/H2O ratio profiles innovative retrieval approach
2009/1/16
We propose an innovative approach for analysing ground-based FTIR spectra which allows us to detect variabilities of lower and middle/upper tropospheric HDO/H2O ratios. We show that the proposed meth...
NO2 Profile retrieval using airborne multi axis UV-visible skylight absorption measurements over central Europe
NO2 Profile UV-visible skylight absorption measurements central Europe
2009/1/13
A recent development in ground-based remote sensing of atmospheric constituents by UV/visible absorption measurements of scattered light is the simultaneous use of several directions with small elevat...