A5075732330- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Calibration and Measurement Techniques
- Spectroscopy and Laser Applications
- Atmospheric aerosols and clouds
- Hybrid Renewable Energy Systems
- Nuclear materials and radiation effects
- Cardiovascular and Diving-Related Complications
- Air Quality Monitoring and Forecasting
- Surface Roughness and Optical Measurements
- Chemical and Environmental Engineering Research
- Advanced Optical Sensing Technologies
- Magnesium Oxide Properties and Applications
- Image Retrieval and Classification Techniques
- Geochemistry and Geologic Mapping
- Climate variability and models
- Scientific Research and Discoveries
- Polar Research and Ecology
- Concrete and Cement Materials Research
- Carbon Dioxide Capture Technologies
- Hydrocarbon exploration and reservoir analysis
- Planetary Science and Exploration
- Methane Hydrates and Related Phenomena
- Algorithms and Data Compression
South African Nuclear Energy Corporation (South Africa)
2023
Dutch Institute for Fundamental Energy Research
2015
Institute for Atomic and Molecular Physics
2010
Royal Netherlands Meteorological Institute
2002-2007
SRON Netherlands Institute for Space Research
1991-2003
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2000
University of Bremen
1997
University of Cambridge
1997
SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography) is a spectrometer designed to measure sunlight transmitted, reflected, and scattered by the earth’s atmosphere or surface in ultraviolet, visible, near-infrared wavelength region (240–2380 nm) at moderate spectral resolution (0.2–1.5 nm, λ/Δλ ≈ 1000–10 000). will earthshine radiance limb nadir viewing geometries solar lunar light transmitted through observed occultation. The extraterrestrial irradiance be...
We extend the analysis of a global CH 4 data set retrieved from SCIAMACHY (Frankenberg et al., 2006) by making detailed comparison with inverse TM5 model simulations for 2003 that are optimized versus high accuracy surface measurements NOAA ESRL network. The column averaged mixing ratios over remote continental and oceanic regions shows major features atmospheric distribution consistent between observations simulations. However, suggests retrievals may have some bias depends on latitude...
The UV/Vis/near infrared spectrometer SCIAMACHY on board the European ENVISAT satellite enables total column retrieval of atmospheric methane with high sensitivity to lower troposphere. vertical density is converted averaged mixing ratio by using carbon dioxide retrievals as proxy for probed column. For this purpose, we apply concurrent measurements CO 2 in combination modeled column‐averaged ratios. Possible systematic errors are discussed detail while precision error 1.8% average. This...
Abstract. The remote sensing of the atmospheric greenhouse gases methane (CH4) and carbon dioxide (CO2) in troposphere from instrumentation aboard satellites is a new area research. In this manuscript, results obtained observations up-welling radiation near-infrared by SCIAMACHY (Scanning Imaging Absorption spectroMeter for Atmospheric CHartographY), which flies on board ENVISAT, are presented. Vertical columns CH4, CO2 oxygen (O2) have been retrieved (air or) O2-normalized CH4 column...
Abstract. Satellite observations of trace gases in the atmosphere offer a promising method for global verification emissions and improvement emission inventories. Here, an inverse modelling approach based on four-dimensional variational (4D-var) data assimilation is presented applied to synthetic measurements atmospheric methane. In this approach, initial concentrations are optimised simultaneously, thus allowing inversions be carried out time scales weeks months, short compared with...
In the winter 1999/2000 Airborne Submillimeter Radiometer (ASUR) participated in Stratospheric Aerosol and Gas Experiment III Ozone Loss Validation Experiment/Third European on project board NASA research aircraft DC‐8. During three deployments early December 1999, late January, March 2000, ASUR instrument took various measurements of ozone key species related to stratospheric chemistry. After sunlight reached vortex region January 2000 peak values about 1.8 ppb ClO were measured by ASUR....
Column‐averaged volume mixing ratios of CH 4 were retrieved with a precision better than 0.5% from infrared solar absorption spectra obtained at Ny‐Alesund (Spitsbergen, 79°N) between 1997 and 2004 during two ship cruises (54°N–34°S) on the Atlantic in 2003. The retrieval has been performed spectral region available to all operational FTIR (Fourier Transform InfraRed) spectrometers performing measurements. seasonality long‐term increase tropospheric volume‐mixing ratio, derived measurements...
The need for storage of renewable energy (RE) generated by photovoltaic, concentrated solar and wind arises from the fact that supply demand are ill-matched both geographically temporarily. This already causes problems overcapacity grid congestion in countries where fraction RE exceeds 20% level. A system approach is needed, which focusses not only on source, but includes conversion, storage, transport, distribution, use and, last least, recycling waste. Furthermore, there a more flexibility...
Vertical distributions of ClO, HCl, N 2 O, and O 3 have been retrieved from airborne observations pressure‐broadened emission spectra in the frequency range 620 to 690 GHz. Observations were made February 1994 Arctic stratosphere above northern Europe with Airborne Submillimeter SIS Radiometer (ASUR) during Second European Stratospheric Mid‐latitude Experiment (SESAME) 1 campaign. ASUR is first submillimeter experiment employ new superconductor‐insulator‐superconductor (SIS) receiver...
SCIAMACHY is an atmospheric remote sensing satellite instrument. It a passive instrument whose primary measurement objective to observe the absorptions of tropospheric and stratospheric trace gases in solar spectrum. Two identical telescope-spectrographs (TS1 TS2) will transmitted, reflected, scattered light from atmosphere UV, visible near-infrared wavelength regions (200 - 2400 nm). There are two modes data collection: simultaneous 1 limb nadir viewing, solar/lunar occultation. The scan...
SCIAMACHY is an advanced spectrometer covering a wide spectral range (240 nm to 2400 nm) at medium resolution (0.2 1.4 that measures large number of atmospheric trace gases relevant for ozone chemistry and greenhouse radiation studies. will be part the ESA ENVISAT module scheduled launch end year 2000. observe Earth atmosphere in alternate limb/nadir view, sampling same air volume with approx 3 km vertical 30/spl times/60 km/sup 2/ horizontal resolution. This paper presents brief account...